flatcam/camlib.py

8738 lines
360 KiB
Python

# ########################################################## ##
# FlatCAM: 2D Post-processing for Manufacturing #
# http://flatcam.org #
# Author: Juan Pablo Caram (c) #
# Date: 2/5/2014 #
# MIT Licence #
# ########################################################## ##
from PyQt5 import QtWidgets, QtCore
from io import StringIO
from numpy.linalg import solve, norm
import platform
from copy import deepcopy
import traceback
from decimal import Decimal
from rtree import index as rtindex
from lxml import etree as ET
# See: http://toblerity.org/shapely/manual.html
from shapely.geometry import Polygon, Point, LinearRing
from shapely.geometry import box as shply_box
from shapely.ops import unary_union, substring, linemerge
import shapely.affinity as affinity
from shapely.wkt import loads as sloads
from shapely.wkt import dumps as sdumps
from shapely.geometry.base import BaseGeometry
from shapely.geometry import shape
# ---------------------------------------
# NEEDED for Legacy mode
# Used for solid polygons in Matplotlib
from descartes.patch import PolygonPatch
# ---------------------------------------
from collections import Iterable
import rasterio
from rasterio.features import shapes
import ezdxf
from appCommon.Common import GracefulException as grace
# Commented for FlatCAM packaging with cx_freeze
# from scipy.spatial import KDTree, Delaunay
# from scipy.spatial import Delaunay
from appParsers.ParseSVG import *
from appParsers.ParseDXF import *
if platform.architecture()[0] == '64bit':
from ortools.constraint_solver import pywrapcp
from ortools.constraint_solver import routing_enums_pb2
import logging
import gettext
import appTranslation as fcTranslate
import builtins
fcTranslate.apply_language('strings')
log = logging.getLogger('base2')
log.setLevel(logging.DEBUG)
formatter = logging.Formatter('[%(levelname)s] %(message)s')
handler = logging.StreamHandler()
handler.setFormatter(formatter)
log.addHandler(handler)
if '_' not in builtins.__dict__:
_ = gettext.gettext
class ParseError(Exception):
pass
class ApertureMacro:
"""
Syntax of aperture macros.
<AM command>: AM<Aperture macro name>*<Macro content>
<Macro content>: {{<Variable definition>*}{<Primitive>*}}
<Variable definition>: $K=<Arithmetic expression>
<Primitive>: <Primitive code>,<Modifier>{,<Modifier>}|<Comment>
<Modifier>: $M|< Arithmetic expression>
<Comment>: 0 <Text>
"""
# ## Regular expressions
am1_re = re.compile(r'^%AM([^\*]+)\*(.+)?(%)?$')
am2_re = re.compile(r'(.*)%$')
amcomm_re = re.compile(r'^0(.*)')
amprim_re = re.compile(r'^[1-9].*')
amvar_re = re.compile(r'^\$([0-9a-zA-z]+)=(.*)')
def __init__(self, name=None):
self.name = name
self.raw = ""
# ## These below are recomputed for every aperture
# ## definition, in other words, are temporary variables.
self.primitives = []
self.locvars = {}
self.geometry = None
def to_dict(self):
"""
Returns the object in a serializable form. Only the name and
raw are required.
:return: Dictionary representing the object. JSON ready.
:rtype: dict
"""
return {
'name': self.name,
'raw': self.raw
}
def from_dict(self, d):
"""
Populates the object from a serial representation created
with ``self.to_dict()``.
:param d: Serial representation of an ApertureMacro object.
:return: None
"""
for attr in ['name', 'raw']:
setattr(self, attr, d[attr])
def parse_content(self):
"""
Creates numerical lists for all primitives in the aperture
macro (in ``self.raw``) by replacing all variables by their
values iteratively and evaluating expressions. Results
are stored in ``self.primitives``.
:return: None
"""
# Cleanup
self.raw = self.raw.replace('\n', '').replace('\r', '').strip(" *")
self.primitives = []
# Separate parts
parts = self.raw.split('*')
# ### Every part in the macro ####
for part in parts:
# ## Comments. Ignored.
match = ApertureMacro.amcomm_re.search(part)
if match:
continue
# ## Variables
# These are variables defined locally inside the macro. They can be
# numerical constant or defined in terms of previously define
# variables, which can be defined locally or in an aperture
# definition. All replacements occur here.
match = ApertureMacro.amvar_re.search(part)
if match:
var = match.group(1)
val = match.group(2)
# Replace variables in value
for v in self.locvars:
# replaced the following line with the next to fix Mentor custom apertures not parsed OK
# val = re.sub((r'\$'+str(v)+r'(?![0-9a-zA-Z])'), str(self.locvars[v]), val)
val = val.replace('$' + str(v), str(self.locvars[v]))
# Make all others 0
val = re.sub(r'\$[0-9a-zA-Z](?![0-9a-zA-Z])', "0", val)
# Change x with *
val = re.sub(r'[xX]', "*", val)
# Eval() and store.
self.locvars[var] = eval(val)
continue
# ## Primitives
# Each is an array. The first identifies the primitive, while the
# rest depend on the primitive. All are strings representing a
# number and may contain variable definition. The values of these
# variables are defined in an aperture definition.
match = ApertureMacro.amprim_re.search(part)
if match:
# ## Replace all variables
for v in self.locvars:
# replaced the following line with the next to fix Mentor custom apertures not parsed OK
# part = re.sub(r'\$' + str(v) + r'(?![0-9a-zA-Z])', str(self.locvars[v]), part)
part = part.replace('$' + str(v), str(self.locvars[v]))
# Make all others 0
part = re.sub(r'\$[0-9a-zA-Z](?![0-9a-zA-Z])', "0", part)
# Change x with *
part = re.sub(r'[xX]', "*", part)
# ## Store
elements = part.split(",")
self.primitives.append([eval(x) for x in elements])
continue
log.warning("Unknown syntax of aperture macro part: %s" % str(part))
def append(self, data):
"""
Appends a string to the raw macro.
:param data: Part of the macro.
:type data: str
:return: None
"""
self.raw += data
@staticmethod
def default2zero(n, mods):
"""
Pads the ``mods`` list with zeros resulting in an
list of length n.
:param n: Length of the resulting list.
:type n: int
:param mods: List to be padded.
:type mods: list
:return: Zero-padded list.
:rtype: list
"""
x = [0.0] * n
na = len(mods)
x[0:na] = mods
return x
@staticmethod
def make_circle(mods):
"""
:param mods: (Exposure 0/1, Diameter >=0, X-coord, Y-coord)
:return:
"""
val = ApertureMacro.default2zero(4, mods)
pol = val[0]
dia = val[1]
x = val[2]
y = val[3]
# pol, dia, x, y = ApertureMacro.default2zero(4, mods)
return {"pol": int(pol), "geometry": Point(x, y).buffer(dia / 2)}
@staticmethod
def make_vectorline(mods):
"""
:param mods: (Exposure 0/1, Line width >= 0, X-start, Y-start, X-end, Y-end,
rotation angle around origin in degrees)
:return:
"""
val = ApertureMacro.default2zero(7, mods)
pol = val[0]
width = val[1]
xs = val[2]
ys = val[3]
xe = val[4]
ye = val[5]
angle = val[6]
# pol, width, xs, ys, xe, ye, angle = ApertureMacro.default2zero(7, mods)
line = LineString([(xs, ys), (xe, ye)])
box = line.buffer(width / 2, cap_style=2)
box_rotated = affinity.rotate(box, angle, origin=(0, 0))
return {"pol": int(pol), "geometry": box_rotated}
@staticmethod
def make_centerline(mods):
"""
:param mods: (Exposure 0/1, width >=0, height >=0, x-center, y-center,
rotation angle around origin in degrees)
:return:
"""
# pol, width, height, x, y, angle = ApertureMacro.default2zero(4, mods)
val = ApertureMacro.default2zero(4, mods)
pol = val[0]
width = val[1]
height = val[2]
x = val[3]
y = val[4]
angle = val[5]
box = shply_box(x - width / 2, y - height / 2, x + width / 2, y + height / 2)
box_rotated = affinity.rotate(box, angle, origin=(0, 0))
return {"pol": int(pol), "geometry": box_rotated}
@staticmethod
def make_lowerleftline(mods):
"""
:param mods: (exposure 0/1, width >=0, height >=0, x-lowerleft, y-lowerleft,
rotation angle around origin in degrees)
:return:
"""
# pol, width, height, x, y, angle = ApertureMacro.default2zero(6, mods)
val = ApertureMacro.default2zero(6, mods)
pol = val[0]
width = val[1]
height = val[2]
x = val[3]
y = val[4]
angle = val[5]
box = shply_box(x, y, x + width, y + height)
box_rotated = affinity.rotate(box, angle, origin=(0, 0))
return {"pol": int(pol), "geometry": box_rotated}
@staticmethod
def make_outline(mods):
"""
:param mods:
:return:
"""
pol = mods[0]
n = mods[1]
points = [(0, 0)] * (n + 1)
for i in range(n + 1):
points[i] = mods[2 * i + 2:2 * i + 4]
angle = mods[2 * n + 4]
poly = Polygon(points)
poly_rotated = affinity.rotate(poly, angle, origin=(0, 0))
return {"pol": int(pol), "geometry": poly_rotated}
@staticmethod
def make_polygon(mods):
"""
Note: Specs indicate that rotation is only allowed if the center
(x, y) == (0, 0). I will tolerate breaking this rule.
:param mods: (exposure 0/1, n_verts 3<=n<=12, x-center, y-center,
diameter of circumscribed circle >=0, rotation angle around origin)
:return:
"""
# pol, nverts, x, y, dia, angle = ApertureMacro.default2zero(6, mods)
val = ApertureMacro.default2zero(6, mods)
pol = val[0]
nverts = val[1]
x = val[2]
y = val[3]
dia = val[4]
angle = val[5]
points = [(0, 0)] * nverts
for i in range(nverts):
points[i] = (x + 0.5 * dia * np.cos(2 * np.pi * i / nverts),
y + 0.5 * dia * np.sin(2 * np.pi * i / nverts))
poly = Polygon(points)
poly_rotated = affinity.rotate(poly, angle, origin=(0, 0))
return {"pol": int(pol), "geometry": poly_rotated}
@staticmethod
def make_moire(mods):
"""
Note: Specs indicate that rotation is only allowed if the center
(x, y) == (0, 0). I will tolerate breaking this rule.
:param mods: (x-center, y-center, outer_dia_outer_ring, ring thickness,
gap, max_rings, crosshair_thickness, crosshair_len, rotation
angle around origin in degrees)
:return:
"""
# x, y, dia, thickness, gap, nrings, cross_th, cross_len, angle = ApertureMacro.default2zero(9, mods)
val = ApertureMacro.default2zero(9, mods)
x = val[0]
y = val[1]
dia = val[2]
thickness = val[3]
gap = val[4]
nrings = val[5]
cross_th = val[6]
cross_len = val[7]
angle = val[8]
r = dia / 2 - thickness / 2
result = Point((x, y)).buffer(r).exterior.buffer(thickness / 2.0)
ring = Point((x, y)).buffer(r).exterior.buffer(thickness / 2.0) # Need a copy!
i = 1 # Number of rings created so far
# ## If the ring does not have an interior it means that it is
# ## a disk. Then stop.
while len(ring.interiors) > 0 and i < nrings:
r -= thickness + gap
if r <= 0:
break
ring = Point((x, y)).buffer(r).exterior.buffer(thickness / 2.0)
result = unary_union([result, ring])
i += 1
# ## Crosshair
hor = LineString([(x - cross_len, y), (x + cross_len, y)]).buffer(cross_th / 2.0, cap_style=2)
ver = LineString([(x, y - cross_len), (x, y + cross_len)]).buffer(cross_th / 2.0, cap_style=2)
result = unary_union([result, hor, ver])
return {"pol": 1, "geometry": result}
@staticmethod
def make_thermal(mods):
"""
Note: Specs indicate that rotation is only allowed if the center
(x, y) == (0, 0). I will tolerate breaking this rule.
:param mods: [x-center, y-center, diameter-outside, diameter-inside,
gap-thickness, rotation angle around origin]
:return:
"""
# x, y, dout, din, t, angle = ApertureMacro.default2zero(6, mods)
val = ApertureMacro.default2zero(6, mods)
x = val[0]
y = val[1]
dout = val[2]
din = val[3]
t = val[4]
angle = val[5]
ring = Point((x, y)).buffer(dout / 2.0).difference(Point((x, y)).buffer(din / 2.0))
hline = LineString([(x - dout / 2.0, y), (x + dout / 2.0, y)]).buffer(t / 2.0, cap_style=3)
vline = LineString([(x, y - dout / 2.0), (x, y + dout / 2.0)]).buffer(t / 2.0, cap_style=3)
thermal = ring.difference(hline.union(vline))
return {"pol": 1, "geometry": thermal}
def make_geometry(self, modifiers):
"""
Runs the macro for the given modifiers and generates
the corresponding geometry.
:param modifiers: Modifiers (parameters) for this macro
:type modifiers: list
:return: Shapely geometry
:rtype: shapely.geometry.polygon
"""
# ## Primitive makers
makers = {
"1": ApertureMacro.make_circle,
"2": ApertureMacro.make_vectorline,
"20": ApertureMacro.make_vectorline,
"21": ApertureMacro.make_centerline,
"22": ApertureMacro.make_lowerleftline,
"4": ApertureMacro.make_outline,
"5": ApertureMacro.make_polygon,
"6": ApertureMacro.make_moire,
"7": ApertureMacro.make_thermal
}
# ## Store modifiers as local variables
modifiers = modifiers or []
modifiers = [float(m) for m in modifiers]
self.locvars = {}
for i in range(0, len(modifiers)):
self.locvars[str(i + 1)] = modifiers[i]
# ## Parse
self.primitives = [] # Cleanup
self.geometry = Polygon()
self.parse_content()
# ## Make the geometry
for primitive in self.primitives:
# Make the primitive
prim_geo = makers[str(int(primitive[0]))](primitive[1:])
# Add it (according to polarity)
# if self.geometry is None and prim_geo['pol'] == 1:
# self.geometry = prim_geo['geometry']
# continue
if prim_geo['pol'] == 1:
self.geometry = self.geometry.union(prim_geo['geometry'])
continue
if prim_geo['pol'] == 0:
self.geometry = self.geometry.difference(prim_geo['geometry'])
continue
return self.geometry
class Geometry(object):
"""
Base geometry class.
"""
defaults = {
"units": 'mm',
# "geo_steps_per_circle": 128
}
def __init__(self, geo_steps_per_circle=None):
# Units (in or mm)
self.units = self.app.defaults["units"]
self.decimals = self.app.decimals
self.drawing_tolerance = 0.0
self.tools = None
# Final geometry: MultiPolygon or list (of geometry constructs)
self.solid_geometry = None
# Final geometry: MultiLineString or list (of LineString or Points)
self.follow_geometry = None
# Flattened geometry (list of paths only)
self.flat_geometry = []
# this is the calculated conversion factor when the file units are different than the ones in the app
self.file_units_factor = 1
# Index
self.index = None
self.geo_steps_per_circle = geo_steps_per_circle
# variables to display the percentage of work done
self.geo_len = 0
self.old_disp_number = 0
self.el_count = 0
if self.app.is_legacy is False:
self.temp_shapes = self.app.plotcanvas.new_shape_collection(layers=1)
else:
from appGUI.PlotCanvasLegacy import ShapeCollectionLegacy
self.temp_shapes = ShapeCollectionLegacy(obj=self, app=self.app, name='camlib.geometry')
# Attributes to be included in serialization
self.ser_attrs = ["units", 'solid_geometry', 'follow_geometry', 'tools']
def plot_temp_shapes(self, element, color='red'):
try:
for sub_el in element:
self.plot_temp_shapes(sub_el)
except TypeError: # Element is not iterable...
# self.add_shape(shape=element, color=color, visible=visible, layer=0)
self.temp_shapes.add(tolerance=float(self.app.defaults["global_tolerance"]),
shape=element, color=color, visible=True, layer=0)
def make_index(self):
self.flatten()
self.index = FlatCAMRTree()
for i, g in enumerate(self.flat_geometry):
self.index.insert(i, g)
def add_circle(self, origin, radius, tool=None):
"""
Adds a circle to the object.
:param origin: Center of the circle.
:param radius: Radius of the circle.
:param tool: A tool in the Tools dictionary attribute of the object
:return: None
"""
if self.solid_geometry is None:
self.solid_geometry = []
new_circle = Point(origin).buffer(radius, int(self.geo_steps_per_circle))
if not new_circle.is_valid:
return "fail"
# add to the solid_geometry
try:
self.solid_geometry.append(new_circle)
except TypeError:
try:
self.solid_geometry = self.solid_geometry.union(new_circle)
except Exception as e:
log.error("Failed to run union on polygons. %s" % str(e))
return "fail"
# add in tools solid_geometry
if tool is None or tool not in self.tools:
tool = 1
self.tools[tool]['solid_geometry'].append(new_circle)
# calculate bounds
try:
xmin, ymin, xmax, ymax = self.bounds()
self.options['xmin'] = xmin
self.options['ymin'] = ymin
self.options['xmax'] = xmax
self.options['ymax'] = ymax
except Exception as e:
log.error("Failed. The object has no bounds properties. %s" % str(e))
def add_polygon(self, points, tool=None):
"""
Adds a polygon to the object (by union)
:param points: The vertices of the polygon.
:param tool: A tool in the Tools dictionary attribute of the object
:return: None
"""
if self.solid_geometry is None:
self.solid_geometry = []
new_poly = Polygon(points)
if not new_poly.is_valid:
return "fail"
# add to the solid_geometry
if type(self.solid_geometry) is list:
self.solid_geometry.append(new_poly)
else:
try:
self.solid_geometry = self.solid_geometry.union(Polygon(points))
except Exception as e:
log.error("Failed to run union on polygons. %s" % str(e))
return "fail"
# add in tools solid_geometry
if tool is None or tool not in self.tools:
tool = 1
self.tools[tool]['solid_geometry'].append(new_poly)
# calculate bounds
try:
xmin, ymin, xmax, ymax = self.bounds()
self.options['xmin'] = xmin
self.options['ymin'] = ymin
self.options['xmax'] = xmax
self.options['ymax'] = ymax
except Exception as e:
log.error("Failed. The object has no bounds properties. %s" % str(e))
def add_polyline(self, points, tool=None):
"""
Adds a polyline to the object (by union)
:param points: The vertices of the polyline.
:param tool: A tool in the Tools dictionary attribute of the object
:return: None
"""
if self.solid_geometry is None:
self.solid_geometry = []
new_line = LineString(points)
if not new_line.is_valid:
return "fail"
# add to the solid_geometry
if type(self.solid_geometry) is list:
self.solid_geometry.append(new_line)
else:
try:
self.solid_geometry = self.solid_geometry.union(new_line)
except Exception as e:
log.error("Failed to run union on polylines. %s" % str(e))
return "fail"
# add in tools solid_geometry
if tool is None or tool not in self.tools:
tool = 1
self.tools[tool]['solid_geometry'].append(new_line)
# calculate bounds
try:
xmin, ymin, xmax, ymax = self.bounds()
self.options['xmin'] = xmin
self.options['ymin'] = ymin
self.options['xmax'] = xmax
self.options['ymax'] = ymax
except Exception as e:
log.error("Failed. The object has no bounds properties. %s" % str(e))
def is_empty(self):
if isinstance(self.solid_geometry, BaseGeometry) or isinstance(self.solid_geometry, Polygon) or \
isinstance(self.solid_geometry, MultiPolygon):
return self.solid_geometry.is_empty
if isinstance(self.solid_geometry, list):
return len(self.solid_geometry) == 0
self.app.inform.emit('[ERROR_NOTCL] %s' % _("self.solid_geometry is neither BaseGeometry or list."))
return
def subtract_polygon(self, points):
"""
Subtract polygon from the given object. This only operates on the paths in the original geometry,
i.e. it converts polygons into paths.
:param points: The vertices of the polygon.
:return: none
"""
if self.solid_geometry is None:
self.solid_geometry = []
# pathonly should be allways True, otherwise polygons are not subtracted
flat_geometry = self.flatten(pathonly=True)
log.debug("%d paths" % len(flat_geometry))
if not isinstance(points, Polygon):
polygon = Polygon(points)
else:
polygon = points
toolgeo = unary_union(polygon)
diffs = []
for target in flat_geometry:
if isinstance(target, LineString) or isinstance(target, LineString) or isinstance(target, MultiLineString):
diffs.append(target.difference(toolgeo))
else:
log.warning("Not implemented.")
self.solid_geometry = unary_union(diffs)
def bounds(self, flatten=False):
"""
Returns coordinates of rectangular bounds
of geometry: (xmin, ymin, xmax, ymax).
:param flatten: will flatten the solid_geometry if True
:return:
"""
# fixed issue of getting bounds only for one level lists of objects
# now it can get bounds for nested lists of objects
log.debug("camlib.Geometry.bounds()")
if self.solid_geometry is None:
log.debug("solid_geometry is None")
return 0, 0, 0, 0
def bounds_rec(obj):
if type(obj) is list:
gminx = np.Inf
gminy = np.Inf
gmaxx = -np.Inf
gmaxy = -np.Inf
for k in obj:
if type(k) is dict:
for key in k:
minx_, miny_, maxx_, maxy_ = bounds_rec(k[key])
gminx = min(gminx, minx_)
gminy = min(gminy, miny_)
gmaxx = max(gmaxx, maxx_)
gmaxy = max(gmaxy, maxy_)
else:
try:
if k.is_empty:
continue
except Exception:
pass
minx_, miny_, maxx_, maxy_ = bounds_rec(k)
gminx = min(gminx, minx_)
gminy = min(gminy, miny_)
gmaxx = max(gmaxx, maxx_)
gmaxy = max(gmaxy, maxy_)
return gminx, gminy, gmaxx, gmaxy
else:
# it's a Shapely object, return it's bounds
return obj.bounds
if self.multigeo is True:
minx_list = []
miny_list = []
maxx_list = []
maxy_list = []
for tool in self.tools:
working_geo = self.tools[tool]['solid_geometry']
if flatten:
self.flatten(geometry=working_geo, reset=True)
working_geo = self.flat_geometry
minx, miny, maxx, maxy = bounds_rec(working_geo)
minx_list.append(minx)
miny_list.append(miny)
maxx_list.append(maxx)
maxy_list.append(maxy)
return min(minx_list), min(miny_list), max(maxx_list), max(maxy_list)
else:
if flatten:
self.flatten(reset=True)
self.solid_geometry = self.flat_geometry
bounds_coords = bounds_rec(self.solid_geometry)
return bounds_coords
# try:
# # from here: http://rightfootin.blogspot.com/2006/09/more-on-python-flatten.html
# def flatten(l, ltypes=(list, tuple)):
# ltype = type(l)
# l = list(l)
# i = 0
# while i < len(l):
# while isinstance(l[i], ltypes):
# if not l[i]:
# l.pop(i)
# i -= 1
# break
# else:
# l[i:i + 1] = l[i]
# i += 1
# return ltype(l)
#
# log.debug("Geometry->bounds()")
# if self.solid_geometry is None:
# log.debug("solid_geometry is None")
# return 0, 0, 0, 0
#
# if type(self.solid_geometry) is list:
# if len(self.solid_geometry) == 0:
# log.debug('solid_geometry is empty []')
# return 0, 0, 0, 0
# return unary_union(flatten(self.solid_geometry)).bounds
# else:
# return self.solid_geometry.bounds
# except Exception as e:
# self.app.inform.emit("[ERROR_NOTCL] Error cause: %s" % str(e))
# log.debug("Geometry->bounds()")
# if self.solid_geometry is None:
# log.debug("solid_geometry is None")
# return 0, 0, 0, 0
#
# if type(self.solid_geometry) is list:
# if len(self.solid_geometry) == 0:
# log.debug('solid_geometry is empty []')
# return 0, 0, 0, 0
# return unary_union(self.solid_geometry).bounds
# else:
# return self.solid_geometry.bounds
def find_polygon(self, point, geoset=None):
"""
Find an object that object.contains(Point(point)) in
poly, which can can be iterable, contain iterable of, or
be itself an implementer of .contains().
:param point: See description
:param geoset: a polygon or list of polygons where to find if the param point is contained
:return: Polygon containing point or None.
"""
if geoset is None:
geoset = self.solid_geometry
try: # Iterable
for sub_geo in geoset:
p = self.find_polygon(point, geoset=sub_geo)
if p is not None:
return p
except TypeError: # Non-iterable
try: # Implements .contains()
if isinstance(geoset, LinearRing):
geoset = Polygon(geoset)
if geoset.contains(Point(point)):
return geoset
except AttributeError: # Does not implement .contains()
return None
return None
def get_interiors(self, geometry=None):
interiors = []
if geometry is None:
geometry = self.solid_geometry
# ## If iterable, expand recursively.
try:
for geo in geometry:
interiors.extend(self.get_interiors(geometry=geo))
# ## Not iterable, get the interiors if polygon.
except TypeError:
if type(geometry) == Polygon:
interiors.extend(geometry.interiors)
return interiors
def get_exteriors(self, geometry=None):
"""
Returns all exteriors of polygons in geometry. Uses
``self.solid_geometry`` if geometry is not provided.
:param geometry: Shapely type or list or list of list of such.
:return: List of paths constituting the exteriors
of polygons in geometry.
"""
exteriors = []
if geometry is None:
geometry = self.solid_geometry
# ## If iterable, expand recursively.
try:
for geo in geometry:
exteriors.extend(self.get_exteriors(geometry=geo))
# ## Not iterable, get the exterior if polygon.
except TypeError:
if type(geometry) == Polygon:
exteriors.append(geometry.exterior)
return exteriors
def flatten(self, geometry=None, reset=True, pathonly=False):
"""
Creates a list of non-iterable linear geometry objects.
Polygons are expanded into its exterior and interiors if specified.
Results are placed in self.flat_geometry
:param geometry: Shapely type or list or list of list of such.
:param reset: Clears the contents of self.flat_geometry.
:param pathonly: Expands polygons into linear elements.
"""
if geometry is None:
geometry = self.solid_geometry
if reset:
self.flat_geometry = []
# ## If iterable, expand recursively.
try:
for geo in geometry:
if geo is not None:
self.flatten(geometry=geo,
reset=False,
pathonly=pathonly)
# ## Not iterable, do the actual indexing and add.
except TypeError:
if pathonly and type(geometry) == Polygon:
self.flat_geometry.append(geometry.exterior)
self.flatten(geometry=geometry.interiors,
reset=False,
pathonly=True)
else:
self.flat_geometry.append(geometry)
return self.flat_geometry
# def make2Dstorage(self):
#
# self.flatten()
#
# def get_pts(o):
# pts = []
# if type(o) == Polygon:
# g = o.exterior
# pts += list(g.coords)
# for i in o.interiors:
# pts += list(i.coords)
# else:
# pts += list(o.coords)
# return pts
#
# storage = FlatCAMRTreeStorage()
# storage.get_points = get_pts
# for shape in self.flat_geometry:
# storage.insert(shape)
# return storage
# def flatten_to_paths(self, geometry=None, reset=True):
# """
# Creates a list of non-iterable linear geometry elements and
# indexes them in rtree.
#
# :param geometry: Iterable geometry
# :param reset: Wether to clear (True) or append (False) to self.flat_geometry
# :return: self.flat_geometry, self.flat_geometry_rtree
# """
#
# if geometry is None:
# geometry = self.solid_geometry
#
# if reset:
# self.flat_geometry = []
#
# # ## If iterable, expand recursively.
# try:
# for geo in geometry:
# self.flatten_to_paths(geometry=geo, reset=False)
#
# # ## Not iterable, do the actual indexing and add.
# except TypeError:
# if type(geometry) == Polygon:
# g = geometry.exterior
# self.flat_geometry.append(g)
#
# # ## Add first and last points of the path to the index.
# self.flat_geometry_rtree.insert(len(self.flat_geometry) - 1, g.coords[0])
# self.flat_geometry_rtree.insert(len(self.flat_geometry) - 1, g.coords[-1])
#
# for interior in geometry.interiors:
# g = interior
# self.flat_geometry.append(g)
# self.flat_geometry_rtree.insert(len(self.flat_geometry) - 1, g.coords[0])
# self.flat_geometry_rtree.insert(len(self.flat_geometry) - 1, g.coords[-1])
# else:
# g = geometry
# self.flat_geometry.append(g)
# self.flat_geometry_rtree.insert(len(self.flat_geometry) - 1, g.coords[0])
# self.flat_geometry_rtree.insert(len(self.flat_geometry) - 1, g.coords[-1])
#
# return self.flat_geometry, self.flat_geometry_rtree
def isolation_geometry(self, offset, geometry=None, iso_type=2, corner=None, follow=None, passes=0,
prog_plot=False):
"""
Creates contours around geometry at a given
offset distance.
:param offset: Offset distance.
:type offset: float
:param geometry The geometry to work with
:param iso_type: type of isolation, can be 0 = exteriors or 1 = interiors or 2 = both (complete)
:param corner: type of corner for the isolation:
0 = round; 1 = square; 2= beveled (line that connects the ends)
:param follow: whether the geometry to be isolated is a follow_geometry
:param passes: current pass out of possible multiple passes for which the isolation is done
:param prog_plot: type of plotting: "normal" or "progressive"
:return: The buffered geometry.
:rtype: Shapely.MultiPolygon or Shapely.Polygon
"""
if self.app.abort_flag:
# graceful abort requested by the user
raise grace
geo_iso = []
if follow:
return geometry
if geometry:
working_geo = geometry
else:
working_geo = self.solid_geometry
try:
geo_len = len(working_geo)
except TypeError:
geo_len = 1
old_disp_number = 0
pol_nr = 0
# yet, it can be done by issuing an unary_union in the end, thus getting rid of the overlapping geo
try:
for pol in working_geo:
if self.app.abort_flag:
# graceful abort requested by the user
raise grace
if offset == 0:
temp_geo = pol
else:
corner_type = 1 if corner is None else corner
temp_geo = pol.buffer(offset, int(self.geo_steps_per_circle), join_style=corner_type)
geo_iso.append(temp_geo)
pol_nr += 1
# activity view update
disp_number = int(np.interp(pol_nr, [0, geo_len], [0, 100]))
if old_disp_number < disp_number <= 100:
self.app.proc_container.update_view_text(' %s %d: %d%%' %
(_("Pass"), int(passes + 1), int(disp_number)))
old_disp_number = disp_number
except TypeError:
# taking care of the case when the self.solid_geometry is just a single Polygon, not a list or a
# MultiPolygon (not an iterable)
if offset == 0:
temp_geo = working_geo
else:
corner_type = 1 if corner is None else corner
temp_geo = working_geo.buffer(offset, int(self.geo_steps_per_circle), join_style=corner_type)
geo_iso.append(temp_geo)
self.app.proc_container.update_view_text(' %s' % _("Buffering"))
geo_iso = unary_union(geo_iso)
self.app.proc_container.update_view_text('')
# end of replaced block
if iso_type == 2:
ret_geo = geo_iso
elif iso_type == 0:
self.app.proc_container.update_view_text(' %s' % _("Get Exteriors"))
ret_geo = self.get_exteriors(geo_iso)
elif iso_type == 1:
self.app.proc_container.update_view_text(' %s' % _("Get Interiors"))
ret_geo = self.get_interiors(geo_iso)
else:
log.debug("Geometry.isolation_geometry() --> Type of isolation not supported")
return "fail"
if prog_plot == 'progressive':
for elem in ret_geo:
self.plot_temp_shapes(elem)
return ret_geo
def flatten_list(self, obj_list):
for item in obj_list:
if isinstance(item, Iterable) and not isinstance(item, (str, bytes)):
yield from self.flatten_list(item)
else:
yield item
def import_svg(self, filename, object_type=None, flip=True, units=None):
"""
Imports shapes from an SVG file into the object's geometry.
:param filename: Path to the SVG file.
:type filename: str
:param object_type: parameter passed further along
:param flip: Flip the vertically.
:type flip: bool
:param units: FlatCAM units
:return: None
"""
log.debug("camlib.Geometry.import_svg()")
# Parse into list of shapely objects
svg_tree = ET.parse(filename)
svg_root = svg_tree.getroot()
# Change origin to bottom left
# h = float(svg_root.get('height'))
# w = float(svg_root.get('width'))
h = svgparselength(svg_root.get('height'))[0] # TODO: No units support yet
units = self.app.defaults['units'] if units is None else units
res = self.app.defaults['geometry_circle_steps']
factor = svgparse_viewbox(svg_root)
geos = getsvggeo(svg_root, object_type, units=units, res=res, factor=factor)
if flip:
geos = [translate(scale(g, 1.0, -1.0, origin=(0, 0)), yoff=h) for g in geos]
# trying to optimize the resulting geometry by merging contiguous lines
geos = list(self.flatten_list(geos))
geos_polys = []
geos_lines = []
for g in geos:
if isinstance(g, Polygon):
geos_polys.append(g)
else:
geos_lines.append(g)
merged_lines = linemerge(geos_lines)
geos = geos_polys
try:
for l in merged_lines:
geos.append(l)
except TypeError:
geos.append(merged_lines)
# Add to object
if self.solid_geometry is None:
self.solid_geometry = []
if type(self.solid_geometry) is list:
if type(geos) is list:
self.solid_geometry += geos
else:
self.solid_geometry.append(geos)
else: # It's shapely geometry
self.solid_geometry = [self.solid_geometry, geos]
# flatten the self.solid_geometry list for import_svg() to import SVG as Gerber
self.solid_geometry = list(self.flatten_list(self.solid_geometry))
geos_text = getsvgtext(svg_root, object_type, units=units)
if geos_text is not None:
geos_text_f = []
if flip:
# Change origin to bottom left
for i in geos_text:
__, minimy, __, maximy = i.bounds
h2 = (maximy - minimy) * 0.5
geos_text_f.append(translate(scale(i, 1.0, -1.0, origin=(0, 0)), yoff=(h + h2)))
if geos_text_f:
self.solid_geometry = self.solid_geometry + geos_text_f
tooldia = float(self.app.defaults["geometry_cnctooldia"])
tooldia = float('%.*f' % (self.decimals, tooldia))
new_data = {k: v for k, v in self.options.items()}
self.tools.update({
1: {
'tooldia': tooldia,
'offset': 'Path',
'offset_value': 0.0,
'type': 'Rough',
'tool_type': 'C1',
'data': deepcopy(new_data),
'solid_geometry': self.solid_geometry
}
})
self.tools[1]['data']['name'] = self.options['name']
def import_dxf_as_geo(self, filename, units='MM'):
"""
Imports shapes from an DXF file into the object's geometry.
:param filename: Path to the DXF file.
:type filename: str
:param units: Application units
:return: None
"""
log.debug("Parsing DXF file geometry into a Geometry object solid geometry.")
# Parse into list of shapely objects
dxf = ezdxf.readfile(filename)
geos = getdxfgeo(dxf)
# trying to optimize the resulting geometry by merging contiguous lines
geos = list(self.flatten_list(geos))
geos_polys = []
geos_lines = []
for g in geos:
if isinstance(g, Polygon):
geos_polys.append(g)
else:
geos_lines.append(g)
merged_lines = linemerge(geos_lines)
geos = geos_polys
for l in merged_lines:
geos.append(l)
# Add to object
if self.solid_geometry is None:
self.solid_geometry = []
if type(self.solid_geometry) is list:
if type(geos) is list:
self.solid_geometry += geos
else:
self.solid_geometry.append(geos)
else: # It's shapely geometry
self.solid_geometry = [self.solid_geometry, geos]
tooldia = float(self.app.defaults["geometry_cnctooldia"])
tooldia = float('%.*f' % (self.decimals, tooldia))
new_data = {k: v for k, v in self.options.items()}
self.tools.update({
1: {
'tooldia': tooldia,
'offset': 'Path',
'offset_value': 0.0,
'type': 'Rough',
'tool_type': 'C1',
'data': deepcopy(new_data),
'solid_geometry': self.solid_geometry
}
})
self.tools[1]['data']['name'] = self.options['name']
# commented until this function is ready
# geos_text = getdxftext(dxf, object_type, units=units)
# if geos_text is not None:
# geos_text_f = []
# self.solid_geometry = [self.solid_geometry, geos_text_f]
def import_image(self, filename, flip=True, units='MM', dpi=96, mode='black', mask=None):
"""
Imports shapes from an IMAGE file into the object's geometry.
:param filename: Path to the IMAGE file.
:type filename: str
:param flip: Flip the object vertically.
:type flip: bool
:param units: FlatCAM units
:type units: str
:param dpi: dots per inch on the imported image
:param mode: how to import the image: as 'black' or 'color'
:type mode: str
:param mask: level of detail for the import
:return: None
"""
if mask is None:
mask = [128, 128, 128, 128]
scale_factor = 25.4 / dpi if units.lower() == 'mm' else 1 / dpi
geos = []
unscaled_geos = []
with rasterio.open(filename) as src:
# if filename.lower().rpartition('.')[-1] == 'bmp':
# red = green = blue = src.read(1)
# print("BMP")
# elif filename.lower().rpartition('.')[-1] == 'png':
# red, green, blue, alpha = src.read()
# elif filename.lower().rpartition('.')[-1] == 'jpg':
# red, green, blue = src.read()
red = green = blue = src.read(1)
try:
green = src.read(2)
except Exception:
pass
try:
blue = src.read(3)
except Exception:
pass
if mode == 'black':
mask_setting = red <= mask[0]
total = red
log.debug("Image import as monochrome.")
else:
mask_setting = (red <= mask[1]) + (green <= mask[2]) + (blue <= mask[3])
total = np.zeros(red.shape, dtype=np.float32)
for band in red, green, blue:
total += band
total /= 3
log.debug("Image import as colored. Thresholds are: R = %s , G = %s, B = %s" %
(str(mask[1]), str(mask[2]), str(mask[3])))
for geom, val in shapes(total, mask=mask_setting):
unscaled_geos.append(shape(geom))
for g in unscaled_geos:
geos.append(scale(g, scale_factor, scale_factor, origin=(0, 0)))
if flip:
geos = [translate(scale(g, 1.0, -1.0, origin=(0, 0))) for g in geos]
# Add to object
if self.solid_geometry is None:
self.solid_geometry = []
if type(self.solid_geometry) is list:
# self.solid_geometry.append(unary_union(geos))
if type(geos) is list:
self.solid_geometry += geos
else:
self.solid_geometry.append(geos)
else: # It's shapely geometry
self.solid_geometry = [self.solid_geometry, geos]
# flatten the self.solid_geometry list for import_svg() to import SVG as Gerber
self.solid_geometry = list(self.flatten_list(self.solid_geometry))
self.solid_geometry = unary_union(self.solid_geometry)
# self.solid_geometry = MultiPolygon(self.solid_geometry)
# self.solid_geometry = self.solid_geometry.buffer(0.00000001)
# self.solid_geometry = self.solid_geometry.buffer(-0.00000001)
def size(self):
"""
Returns (width, height) of rectangular
bounds of geometry.
"""
if self.solid_geometry is None:
log.warning("Solid_geometry not computed yet.")
return 0
bounds = self.bounds()
return bounds[2] - bounds[0], bounds[3] - bounds[1]
def get_empty_area(self, boundary=None):
"""
Returns the complement of self.solid_geometry within
the given boundary polygon. If not specified, it defaults to
the rectangular bounding box of self.solid_geometry.
"""
if boundary is None:
boundary = self.solid_geometry.envelope
return boundary.difference(self.solid_geometry)
def clear_polygon(self, polygon, tooldia, steps_per_circle, overlap=0.15, connect=True, contour=True,
prog_plot=False):
"""
Creates geometry inside a polygon for a tool to cover
the whole area.
This algorithm shrinks the edges of the polygon and takes
the resulting edges as toolpaths.
:param polygon: Polygon to clear.
:param tooldia: Diameter of the tool.
:param steps_per_circle: number of linear segments to be used to approximate a circle
:param overlap: Overlap of toolpasses.
:param connect: Draw lines between disjoint segments to
minimize tool lifts.
:param contour: Paint around the edges. Inconsequential in
this painting method.
:param prog_plot: boolean; if Ture use the progressive plotting
:return:
"""
# log.debug("camlib.clear_polygon()")
assert type(polygon) == Polygon or type(polygon) == MultiPolygon, \
"Expected a Polygon or MultiPolygon, got %s" % type(polygon)
# ## The toolpaths
# Index first and last points in paths
def get_pts(o):
return [o.coords[0], o.coords[-1]]
geoms = FlatCAMRTreeStorage()
geoms.get_points = get_pts
# Can only result in a Polygon or MultiPolygon
# NOTE: The resulting polygon can be "empty".
current = polygon.buffer((-tooldia / 1.999999), int(steps_per_circle))
if current.area == 0:
# Otherwise, trying to to insert current.exterior == None
# into the FlatCAMStorage will fail.
# print("Area is None")
return None
# current can be a MultiPolygon
try:
for p in current:
geoms.insert(p.exterior)
for i in p.interiors:
geoms.insert(i)
# Not a Multipolygon. Must be a Polygon
except TypeError:
geoms.insert(current.exterior)
for i in current.interiors:
geoms.insert(i)
while True:
if self.app.abort_flag:
# graceful abort requested by the user
raise grace
# provide the app with a way to process the GUI events when in a blocking loop
QtWidgets.QApplication.processEvents()
# Can only result in a Polygon or MultiPolygon
current = current.buffer(-tooldia * (1 - overlap), int(steps_per_circle))
if current.area > 0:
# current can be a MultiPolygon
try:
for p in current:
geoms.insert(p.exterior)
for i in p.interiors:
geoms.insert(i)
if prog_plot:
self.plot_temp_shapes(p)
# Not a Multipolygon. Must be a Polygon
except TypeError:
geoms.insert(current.exterior)
if prog_plot:
self.plot_temp_shapes(current.exterior)
for i in current.interiors:
geoms.insert(i)
if prog_plot:
self.plot_temp_shapes(i)
else:
log.debug("camlib.Geometry.clear_polygon() --> Current Area is zero")
break
if prog_plot:
self.temp_shapes.redraw()
# Optimization: Reduce lifts
if connect:
# log.debug("Reducing tool lifts...")
geoms = Geometry.paint_connect(geoms, polygon, tooldia, int(steps_per_circle))
return geoms
def clear_polygon2(self, polygon_to_clear, tooldia, steps_per_circle, seedpoint=None, overlap=0.15,
connect=True, contour=True, prog_plot=False):
"""
Creates geometry inside a polygon for a tool to cover
the whole area.
This algorithm starts with a seed point inside the polygon
and draws circles around it. Arcs inside the polygons are
valid cuts. Finalizes by cutting around the inside edge of
the polygon.
:param polygon_to_clear: Shapely.geometry.Polygon
:param steps_per_circle: how many linear segments to use to approximate a circle
:param tooldia: Diameter of the tool
:param seedpoint: Shapely.geometry.Point or None
:param overlap: Tool fraction overlap bewteen passes
:param connect: Connect disjoint segment to minumize tool lifts
:param contour: Cut countour inside the polygon.
:param prog_plot: boolean; if True use the progressive plotting
:return: List of toolpaths covering polygon.
:rtype: FlatCAMRTreeStorage | None
"""
# log.debug("camlib.clear_polygon2()")
# Current buffer radius
radius = tooldia / 2 * (1 - overlap)
# ## The toolpaths
# Index first and last points in paths
def get_pts(o):
return [o.coords[0], o.coords[-1]]
geoms = FlatCAMRTreeStorage()
geoms.get_points = get_pts
# Path margin
path_margin = polygon_to_clear.buffer(-tooldia / 2, int(steps_per_circle))
if path_margin.is_empty or path_margin is None:
return None
# Estimate good seedpoint if not provided.
if seedpoint is None:
seedpoint = path_margin.representative_point()
# Grow from seed until outside the box. The polygons will
# never have an interior, so take the exterior LinearRing.
while True:
if self.app.abort_flag:
# graceful abort requested by the user
raise grace
# provide the app with a way to process the GUI events when in a blocking loop
QtWidgets.QApplication.processEvents()
path = Point(seedpoint).buffer(radius, int(steps_per_circle)).exterior
path = path.intersection(path_margin)
# Touches polygon?
if path.is_empty:
break
else:
# geoms.append(path)
# geoms.insert(path)
# path can be a collection of paths.
try:
for p in path:
geoms.insert(p)
if prog_plot:
self.plot_temp_shapes(p)
except TypeError:
geoms.insert(path)
if prog_plot:
self.plot_temp_shapes(path)
if prog_plot:
self.temp_shapes.redraw()
radius += tooldia * (1 - overlap)
# Clean inside edges (contours) of the original polygon
if contour:
buffered_poly = autolist(polygon_to_clear.buffer(-tooldia / 2, int(steps_per_circle)))
outer_edges = [x.exterior for x in buffered_poly]
inner_edges = []
# Over resulting polygons
for x in buffered_poly:
for y in x.interiors: # Over interiors of each polygon
inner_edges.append(y)
# geoms += outer_edges + inner_edges
for g in outer_edges + inner_edges:
if g and not g.is_empty:
geoms.insert(g)
if prog_plot:
self.plot_temp_shapes(g)
if prog_plot:
self.temp_shapes.redraw()
# Optimization connect touching paths
# log.debug("Connecting paths...")
# geoms = Geometry.path_connect(geoms)
# Optimization: Reduce lifts
if connect:
# log.debug("Reducing tool lifts...")
geoms_conn = Geometry.paint_connect(geoms, polygon_to_clear, tooldia, steps_per_circle)
if geoms_conn:
return geoms_conn
return geoms
def clear_polygon3(self, polygon, tooldia, steps_per_circle, overlap=0.15, connect=True, contour=True,
prog_plot=False):
"""
Creates geometry inside a polygon for a tool to cover
the whole area.
This algorithm draws horizontal lines inside the polygon.
:param polygon: The polygon being painted.
:type polygon: shapely.geometry.Polygon
:param tooldia: Tool diameter.
:param steps_per_circle: how many linear segments to use to approximate a circle
:param overlap: Tool path overlap percentage.
:param connect: Connect lines to avoid tool lifts.
:param contour: Paint around the edges.
:param prog_plot: boolean; if to use the progressive plotting
:return:
"""
# log.debug("camlib.clear_polygon3()")
if not isinstance(polygon, Polygon):
log.debug("camlib.Geometry.clear_polygon3() --> Not a Polygon but %s" % str(type(polygon)))
return None
# ## The toolpaths
# Index first and last points in paths
def get_pts(o):
return [o.coords[0], o.coords[-1]]
geoms = FlatCAMRTreeStorage()
geoms.get_points = get_pts
lines_trimmed = []
# Bounding box
left, bot, right, top = polygon.bounds
try:
margin_poly = polygon.buffer(-tooldia / 1.99999999, (int(steps_per_circle)))
except Exception:
log.debug("camlib.Geometry.clear_polygon3() --> Could not buffer the Polygon")
return None
# decide the direction of the lines
if abs(left - right) >= abs(top - bot):
# First line
try:
y = top - tooldia / 1.99999999
while y > bot + tooldia / 1.999999999:
if self.app.abort_flag:
# graceful abort requested by the user
raise grace
# provide the app with a way to process the GUI events when in a blocking loop
QtWidgets.QApplication.processEvents()
line = LineString([(left, y), (right, y)])
line = line.intersection(margin_poly)
lines_trimmed.append(line)
y -= tooldia * (1 - overlap)
if prog_plot:
self.plot_temp_shapes(line)
self.temp_shapes.redraw()
# Last line
y = bot + tooldia / 2
line = LineString([(left, y), (right, y)])
line = line.intersection(margin_poly)
try:
for ll in line:
lines_trimmed.append(ll)
if prog_plot:
self.plot_temp_shapes(ll)
except TypeError:
lines_trimmed.append(line)
if prog_plot:
self.plot_temp_shapes(line)
except Exception as e:
log.debug('camlib.Geometry.clear_polygon3() Processing poly --> %s' % str(e))
return None
else:
# First line
try:
x = left + tooldia / 1.99999999
while x < right - tooldia / 1.999999999:
if self.app.abort_flag:
# graceful abort requested by the user
raise grace
# provide the app with a way to process the GUI events when in a blocking loop
QtWidgets.QApplication.processEvents()
line = LineString([(x, top), (x, bot)])
line = line.intersection(margin_poly)
lines_trimmed.append(line)
x += tooldia * (1 - overlap)
if prog_plot:
self.plot_temp_shapes(line)
self.temp_shapes.redraw()
# Last line
x = right + tooldia / 2
line = LineString([(x, top), (x, bot)])
line = line.intersection(margin_poly)
try:
for ll in line:
lines_trimmed.append(ll)
if prog_plot:
self.plot_temp_shapes(ll)
except TypeError:
lines_trimmed.append(line)
if prog_plot:
self.plot_temp_shapes(line)
except Exception as e:
log.debug('camlib.Geometry.clear_polygon3() Processing poly --> %s' % str(e))
return None
if prog_plot:
self.temp_shapes.redraw()
lines_trimmed = unary_union(lines_trimmed)
# Add lines to storage
try:
for line in lines_trimmed:
if isinstance(line, LineString) or isinstance(line, LinearRing):
if not line.is_empty:
geoms.insert(line)
else:
log.debug("camlib.Geometry.clear_polygon3(). Not a line: %s" % str(type(line)))
except TypeError:
# in case lines_trimmed are not iterable (Linestring, LinearRing)
if not lines_trimmed.is_empty:
geoms.insert(lines_trimmed)
# Add margin (contour) to storage
if contour:
try:
for poly in margin_poly:
if isinstance(poly, Polygon) and not poly.is_empty:
geoms.insert(poly.exterior)
if prog_plot:
self.plot_temp_shapes(poly.exterior)
for ints in poly.interiors:
geoms.insert(ints)
if prog_plot:
self.plot_temp_shapes(ints)
except TypeError:
if isinstance(margin_poly, Polygon) and not margin_poly.is_empty:
marg_ext = margin_poly.exterior
geoms.insert(marg_ext)
if prog_plot:
self.plot_temp_shapes(margin_poly.exterior)
for ints in margin_poly.interiors:
geoms.insert(ints)
if prog_plot:
self.plot_temp_shapes(ints)
if prog_plot:
self.temp_shapes.redraw()
# Optimization: Reduce lifts
if connect:
# log.debug("Reducing tool lifts...")
geoms_conn = Geometry.paint_connect(geoms, polygon, tooldia, steps_per_circle)
if geoms_conn:
return geoms_conn
return geoms
def fill_with_lines(self, line, aperture_size, tooldia, steps_per_circle, overlap=0.15, connect=True, contour=True,
prog_plot=False):
"""
Creates geometry of lines inside a polygon for a tool to cover
the whole area.
This algorithm draws parallel lines inside the polygon.
:param line: The target line that create painted polygon.
:param aperture_size: the size of the aperture that is used to draw the 'line' as a polygon
:type line: shapely.geometry.LineString or shapely.geometry.MultiLineString
:param tooldia: Tool diameter.
:param steps_per_circle: how many linear segments to use to approximate a circle
:param overlap: Tool path overlap percentage.
:param connect: Connect lines to avoid tool lifts.
:param contour: Paint around the edges.
:param prog_plot: boolean; if to use the progressive plotting
:return:
"""
# log.debug("camlib.fill_with_lines()")
if not isinstance(line, LineString):
log.debug("camlib.Geometry.fill_with_lines() --> Not a LineString/MultiLineString but %s" % str(type(line)))
return None
# ## The toolpaths
# Index first and last points in paths
def get_pts(o):
return [o.coords[0], o.coords[-1]]
geoms = FlatCAMRTreeStorage()
geoms.get_points = get_pts
lines_trimmed = []
polygon = line.buffer(aperture_size / 2.0, int(steps_per_circle))
try:
margin_poly = polygon.buffer(-tooldia / 2.0, int(steps_per_circle))
except Exception:
log.debug("camlib.Geometry.fill_with_lines() --> Could not buffer the Polygon, tool diameter too high")
return None
# First line
try:
delta = 0
while delta < aperture_size / 2:
if self.app.abort_flag:
# graceful abort requested by the user
raise grace
# provide the app with a way to process the GUI events when in a blocking loop
QtWidgets.QApplication.processEvents()
new_line = line.parallel_offset(distance=delta, side='left', resolution=int(steps_per_circle))
new_line = new_line.intersection(margin_poly)
lines_trimmed.append(new_line)
new_line = line.parallel_offset(distance=delta, side='right', resolution=int(steps_per_circle))
new_line = new_line.intersection(margin_poly)
lines_trimmed.append(new_line)
delta += tooldia * (1 - overlap)
if prog_plot:
self.plot_temp_shapes(new_line)
self.temp_shapes.redraw()
# Last line
delta = (aperture_size / 2) - (tooldia / 2.00000001)
new_line = line.parallel_offset(distance=delta, side='left', resolution=int(steps_per_circle))
new_line = new_line.intersection(margin_poly)
except Exception as e:
log.debug('camlib.Geometry.fill_with_lines() Processing poly --> %s' % str(e))
return None
try:
for ll in new_line:
lines_trimmed.append(ll)
if prog_plot:
self.plot_temp_shapes(ll)
except TypeError:
lines_trimmed.append(new_line)
if prog_plot:
self.plot_temp_shapes(new_line)
new_line = line.parallel_offset(distance=delta, side='right', resolution=int(steps_per_circle))
new_line = new_line.intersection(margin_poly)
try:
for ll in new_line:
lines_trimmed.append(ll)
if prog_plot:
self.plot_temp_shapes(ll)
except TypeError:
lines_trimmed.append(new_line)
if prog_plot:
self.plot_temp_shapes(new_line)
if prog_plot:
self.temp_shapes.redraw()
lines_trimmed = unary_union(lines_trimmed)
# Add lines to storage
try:
for line in lines_trimmed:
if isinstance(line, LineString) or isinstance(line, LinearRing):
geoms.insert(line)
else:
log.debug("camlib.Geometry.fill_with_lines(). Not a line: %s" % str(type(line)))
except TypeError:
# in case lines_trimmed are not iterable (Linestring, LinearRing)
geoms.insert(lines_trimmed)
# Add margin (contour) to storage
if contour:
try:
for poly in margin_poly:
if isinstance(poly, Polygon) and not poly.is_empty:
geoms.insert(poly.exterior)
if prog_plot:
self.plot_temp_shapes(poly.exterior)
for ints in poly.interiors:
geoms.insert(ints)
if prog_plot:
self.plot_temp_shapes(ints)
except TypeError:
if isinstance(margin_poly, Polygon) and not margin_poly.is_empty:
marg_ext = margin_poly.exterior
geoms.insert(marg_ext)
if prog_plot:
self.plot_temp_shapes(margin_poly.exterior)
for ints in margin_poly.interiors:
geoms.insert(ints)
if prog_plot:
self.plot_temp_shapes(ints)
if prog_plot:
self.temp_shapes.redraw()
# Optimization: Reduce lifts
if connect:
# log.debug("Reducing tool lifts...")
geoms_conn = Geometry.paint_connect(geoms, polygon, tooldia, steps_per_circle)
if geoms_conn:
return geoms_conn
return geoms
def scale(self, xfactor, yfactor, point=None):
"""
Scales all of the object's geometry by a given factor. Override
this method.
:param xfactor: Number by which to scale on X axis.
:type xfactor: float
:param yfactor: Number by which to scale on Y axis.
:type yfactor: float
:param point: point to be used as reference for scaling; a tuple
:return: None
:rtype: None
"""
return
def offset(self, vect):
"""
Offset the geometry by the given vector. Override this method.
:param vect: (x, y) vector by which to offset the object.
:type vect: tuple
:return: None
"""
return
@staticmethod
def paint_connect(storage, boundary, tooldia, steps_per_circle, max_walk=None):
"""
Connects paths that results in a connection segment that is
within the paint area. This avoids unnecessary tool lifting.
:param storage: Geometry to be optimized.
:type storage: FlatCAMRTreeStorage
:param boundary: Polygon defining the limits of the paintable area.
:type boundary: Polygon
:param tooldia: Tool diameter.
:rtype tooldia: float
:param steps_per_circle: how many linear segments to use to approximate a circle
:param max_walk: Maximum allowable distance without lifting tool.
:type max_walk: float or None
:return: Optimized geometry.
:rtype: FlatCAMRTreeStorage
"""
# If max_walk is not specified, the maximum allowed is
# 10 times the tool diameter
max_walk = max_walk or 10 * tooldia
# Assuming geolist is a flat list of flat elements
# ## Index first and last points in paths
def get_pts(o):
return [o.coords[0], o.coords[-1]]
# storage = FlatCAMRTreeStorage()
# storage.get_points = get_pts
#
# for shape in geolist:
# if shape is not None:
# # Make LlinearRings into linestrings otherwise
# # When chaining the coordinates path is messed up.
# storage.insert(LineString(shape))
# #storage.insert(shape)
# ## Iterate over geometry paths getting the nearest each time.
# optimized_paths = []
optimized_paths = FlatCAMRTreeStorage()
optimized_paths.get_points = get_pts
path_count = 0
current_pt = (0, 0)
try:
pt, geo = storage.nearest(current_pt)
except StopIteration:
log.debug("camlib.Geometry.paint_connect(). Storage empty")
return None
storage.remove(geo)
geo = LineString(geo)
current_pt = geo.coords[-1]
try:
while True:
path_count += 1
# log.debug("Path %d" % path_count)
pt, candidate = storage.nearest(current_pt)
storage.remove(candidate)
candidate = LineString(candidate)
# If last point in geometry is the nearest
# then reverse coordinates.
# but prefer the first one if last == first
if pt != candidate.coords[0] and pt == candidate.coords[-1]:
# in place coordinates update deprecated in Shapely 2.0
# candidate.coords = list(candidate.coords)[::-1]
candidate = LineString(list(candidate.coords)[::-1])
# Straight line from current_pt to pt.
# Is the toolpath inside the geometry?
walk_path = LineString([current_pt, pt])
walk_cut = walk_path.buffer(tooldia / 2, int(steps_per_circle))
if walk_cut.within(boundary) and walk_path.length < max_walk:
# log.debug("Walk to path #%d is inside. Joining." % path_count)
# Completely inside. Append...
# in place coordinates update deprecated in Shapely 2.0
# geo.coords = list(geo.coords) + list(candidate.coords)
geo = LineString(list(geo.coords) + list(candidate.coords))
# try:
# last = optimized_paths[-1]
# last.coords = list(last.coords) + list(geo.coords)
# except IndexError:
# optimized_paths.append(geo)
else:
# Have to lift tool. End path.
# log.debug("Path #%d not within boundary. Next." % path_count)
# optimized_paths.append(geo)
optimized_paths.insert(geo)
geo = candidate
current_pt = geo.coords[-1]
# Next
# pt, geo = storage.nearest(current_pt)
except StopIteration: # Nothing left in storage.
# pass
optimized_paths.insert(geo)
return optimized_paths
@staticmethod
def path_connect(storage, origin=(0, 0)):
"""
Simplifies paths in the FlatCAMRTreeStorage storage by
connecting paths that touch on their endpoints.
:param storage: Storage containing the initial paths.
:rtype storage: FlatCAMRTreeStorage
:param origin: tuple; point from which to calculate the nearest point
:return: Simplified storage.
:rtype: FlatCAMRTreeStorage
"""
log.debug("path_connect()")
# ## Index first and last points in paths
def get_pts(o):
return [o.coords[0], o.coords[-1]]
#
# storage = FlatCAMRTreeStorage()
# storage.get_points = get_pts
#
# for shape in pathlist:
# if shape is not None:
# storage.insert(shape)
path_count = 0
pt, geo = storage.nearest(origin)
storage.remove(geo)
# optimized_geometry = [geo]
optimized_geometry = FlatCAMRTreeStorage()
optimized_geometry.get_points = get_pts
# optimized_geometry.insert(geo)
try:
while True:
path_count += 1
_, left = storage.nearest(geo.coords[0])
# If left touches geo, remove left from original
# storage and append to geo.
if type(left) == LineString:
if left.coords[0] == geo.coords[0]:
storage.remove(left)
# geo.coords = list(geo.coords)[::-1] + list(left.coords) # Shapely 2.0
geo = LineString(list(geo.coords)[::-1] + list(left.coords))
continue
if left.coords[-1] == geo.coords[0]:
storage.remove(left)
# geo.coords = list(left.coords) + list(geo.coords) # Shapely 2.0
geo = LineString(list(geo.coords)[::-1] + list(left.coords))
continue
if left.coords[0] == geo.coords[-1]:
storage.remove(left)
# geo.coords = list(geo.coords) + list(left.coords) # Shapely 2.0
geo = LineString(list(geo.coords) + list(left.coords))
continue
if left.coords[-1] == geo.coords[-1]:
storage.remove(left)
# geo.coords = list(geo.coords) + list(left.coords)[::-1] # Shapely 2.0
geo = LineString(list(geo.coords) + list(left.coords)[::-1])
continue
_, right = storage.nearest(geo.coords[-1])
# If right touches geo, remove left from original
# storage and append to geo.
if type(right) == LineString:
if right.coords[0] == geo.coords[-1]:
storage.remove(right)
# geo.coords = list(geo.coords) + list(right.coords) # Shapely 2.0
geo = LineString(list(geo.coords) + list(right.coords))
continue
if right.coords[-1] == geo.coords[-1]:
storage.remove(right)
# geo.coords = list(geo.coords) + list(right.coords)[::-1] # Shapely 2.0
geo = LineString(list(geo.coords) + list(right.coords)[::-1])
continue
if right.coords[0] == geo.coords[0]:
storage.remove(right)
# geo.coords = list(geo.coords)[::-1] + list(right.coords) # Shapely 2.0
geo = LineString(list(geo.coords)[::-1] + list(right.coords))
continue
if right.coords[-1] == geo.coords[0]:
storage.remove(right)
# geo.coords = list(left.coords) + list(geo.coords) # Shapely 2.0
geo = LineString(list(left.coords) + list(geo.coords))
continue
# right is either a LinearRing or it does not connect
# to geo (nothing left to connect to geo), so we continue
# with right as geo.
storage.remove(right)
if type(right) == LinearRing:
optimized_geometry.insert(right)
else:
# Cannot extend geo any further. Put it away.
optimized_geometry.insert(geo)
# Continue with right.
geo = right
except StopIteration: # Nothing found in storage.
optimized_geometry.insert(geo)
# print path_count
log.debug("path_count = %d" % path_count)
return optimized_geometry
def convert_units(self, obj_units):
"""
Converts the units of the object to ``units`` by scaling all
the geometry appropriately. This call ``scale()``. Don't call
it again in descendents.
:param obj_units: "IN" or "MM"
:type obj_units: str
:return: Scaling factor resulting from unit change.
:rtype: float
"""
if obj_units.upper() == self.units.upper():
log.debug("camlib.Geometry.convert_units() --> Factor: 1")
return 1.0
if obj_units.upper() == "MM":
factor = 25.4
log.debug("camlib.Geometry.convert_units() --> Factor: 25.4")
elif obj_units.upper() == "IN":
factor = 1 / 25.4
log.debug("camlib.Geometry.convert_units() --> Factor: %s" % str(1 / 25.4))
else:
log.error("Unsupported units: %s" % str(obj_units))
log.debug("camlib.Geometry.convert_units() --> Factor: 1")
return 1.0
self.units = obj_units
self.scale(factor, factor)
self.file_units_factor = factor
return factor
def to_dict(self):
"""
Returns a representation of the object as a dictionary.
Attributes to include are listed in ``self.ser_attrs``.
:return: A dictionary-encoded copy of the object.
:rtype: dict
"""
d = {}
for attr in self.ser_attrs:
d[attr] = getattr(self, attr)
return d
def from_dict(self, d):
"""
Sets object's attributes from a dictionary.
Attributes to include are listed in ``self.ser_attrs``.
This method will look only for only and all the
attributes in ``self.ser_attrs``. They must all
be present. Use only for deserializing saved
objects.
:param d: Dictionary of attributes to set in the object.
:type d: dict
:return: None
"""
for attr in self.ser_attrs:
setattr(self, attr, d[attr])
def union(self):
"""
Runs a unary_union on the list of objects in
solid_geometry.
:return: None
"""
self.solid_geometry = [unary_union(self.solid_geometry)]
def export_svg(self, scale_stroke_factor=0.00,
scale_factor_x=None, scale_factor_y=None,
skew_factor_x=None, skew_factor_y=None,
skew_reference='center', scale_reference='center',
mirror=None):
"""
Exports the Geometry Object as a SVG Element
:return: SVG Element
"""
# Make sure we see a Shapely Geometry class and not a list
if self.kind.lower() == 'geometry':
flat_geo = []
if self.multigeo:
for tool in self.tools:
flat_geo += self.flatten(self.tools[tool]['solid_geometry'])
geom_svg = unary_union(flat_geo)
else:
geom_svg = unary_union(self.flatten())
else:
geom_svg = unary_union(self.flatten())
skew_ref = 'center'
if skew_reference != 'center':
xmin, ymin, xmax, ymax = geom_svg.bounds
if skew_reference == 'topleft':
skew_ref = (xmin, ymax)
elif skew_reference == 'bottomleft':
skew_ref = (xmin, ymin)
elif skew_reference == 'topright':
skew_ref = (xmax, ymax)
elif skew_reference == 'bottomright':
skew_ref = (xmax, ymin)
geom = geom_svg
if scale_factor_x and not scale_factor_y:
geom = affinity.scale(geom_svg, scale_factor_x, 1.0, origin=scale_reference)
elif not scale_factor_x and scale_factor_y:
geom = affinity.scale(geom_svg, 1.0, scale_factor_y, origin=scale_reference)
elif scale_factor_x and scale_factor_y:
geom = affinity.scale(geom_svg, scale_factor_x, scale_factor_y, origin=scale_reference)
if skew_factor_x and not skew_factor_y:
geom = affinity.skew(geom_svg, skew_factor_x, 0.0, origin=skew_ref)
elif not skew_factor_x and skew_factor_y:
geom = affinity.skew(geom_svg, 0.0, skew_factor_y, origin=skew_ref)
elif skew_factor_x and skew_factor_y:
geom = affinity.skew(geom_svg, skew_factor_x, skew_factor_y, origin=skew_ref)
if mirror:
if mirror == 'x':
geom = affinity.scale(geom_svg, 1.0, -1.0)
if mirror == 'y':
geom = affinity.scale(geom_svg, -1.0, 1.0)
if mirror == 'both':
geom = affinity.scale(geom_svg, -1.0, -1.0)
# scale_factor is a multiplication factor for the SVG stroke-width used within shapely's svg export
# If 0 or less which is invalid then default to 0.01
# This value appears to work for zooming, and getting the output svg line width
# to match that viewed on screen with FlatCam
# MS: I choose a factor of 0.01 so the scale is right for PCB UV film
if scale_stroke_factor <= 0:
scale_stroke_factor = 0.01
# Convert to a SVG
svg_elem = geom.svg(scale_factor=scale_stroke_factor)
return svg_elem
def mirror(self, axis, point):
"""
Mirrors the object around a specified axis passign through
the given point.
:param axis: "X" or "Y" indicates around which axis to mirror.
:type axis: str
:param point: [x, y] point belonging to the mirror axis.
:type point: list
:return: None
"""
log.debug("camlib.Geometry.mirror()")
px, py = point
xscale, yscale = {"X": (1.0, -1.0), "Y": (-1.0, 1.0)}[axis]
def mirror_geom(obj):
if type(obj) is list:
new_obj = []
for g in obj:
new_obj.append(mirror_geom(g))
return new_obj
else:
try:
self.el_count += 1
disp_number = int(np.interp(self.el_count, [0, self.geo_len], [0, 100]))
if self.old_disp_number < disp_number <= 100:
self.app.proc_container.update_view_text(' %d%%' % disp_number)
self.old_disp_number = disp_number
return affinity.scale(obj, xscale, yscale, origin=(px, py))
except AttributeError:
return obj
try:
if self.multigeo is True:
for tool in self.tools:
# variables to display the percentage of work done
self.geo_len = 0
try:
self.geo_len = len(self.tools[tool]['solid_geometry'])
except TypeError:
self.geo_len = 1
self.old_disp_number = 0
self.el_count = 0
self.tools[tool]['solid_geometry'] = mirror_geom(self.tools[tool]['solid_geometry'])
else:
# variables to display the percentage of work done
self.geo_len = 0
try:
self.geo_len = len(self.solid_geometry)
except TypeError:
self.geo_len = 1
self.old_disp_number = 0
self.el_count = 0
self.solid_geometry = mirror_geom(self.solid_geometry)
self.app.inform.emit('[success] %s...' % _('Object was mirrored'))
except AttributeError:
self.app.inform.emit('[ERROR_NOTCL] %s %s' % (_("Failed."), _("No object is selected.")))
self.app.proc_container.new_text = ''
def rotate(self, angle, point):
"""
Rotate an object by an angle (in degrees) around the provided coordinates.
:param angle:
The angle of rotation are specified in degrees (default). Positive angles are
counter-clockwise and negative are clockwise rotations.
:param point:
The point of origin can be a keyword 'center' for the bounding box
center (default), 'centroid' for the geometry's centroid, a Point object
or a coordinate tuple (x0, y0).
See shapely manual for more information: http://toblerity.org/shapely/manual.html#affine-transformations
"""
log.debug("camlib.Geometry.rotate()")
px, py = point
def rotate_geom(obj):
try:
new_obj = []
for g in obj:
new_obj.append(rotate_geom(g))
return new_obj
except TypeError:
try:
self.el_count += 1
disp_number = int(np.interp(self.el_count, [0, self.geo_len], [0, 100]))
if self.old_disp_number < disp_number <= 100:
self.app.proc_container.update_view_text(' %d%%' % disp_number)
self.old_disp_number = disp_number
return affinity.rotate(obj, angle, origin=(px, py))
except AttributeError:
return obj
try:
if self.multigeo is True:
for tool in self.tools:
# variables to display the percentage of work done
self.geo_len = 0
try:
self.geo_len = len(self.tools[tool]['solid_geometry'])
except TypeError:
self.geo_len = 1
self.old_disp_number = 0
self.el_count = 0
self.tools[tool]['solid_geometry'] = rotate_geom(self.tools[tool]['solid_geometry'])
else:
# variables to display the percentage of work done
self.geo_len = 0
try:
self.geo_len = len(self.solid_geometry)
except TypeError:
self.geo_len = 1
self.old_disp_number = 0
self.el_count = 0
self.solid_geometry = rotate_geom(self.solid_geometry)
self.app.inform.emit('[success] %s...' % _('Object was rotated'))
except AttributeError:
self.app.inform.emit('[ERROR_NOTCL] %s %s' % (_("Failed."), _("No object is selected.")))
self.app.proc_container.new_text = ''
def skew(self, angle_x, angle_y, point):
"""
Shear/Skew the geometries of an object by angles along x and y dimensions.
:param angle_x:
:param angle_y:
angle_x, angle_y : float, float
The shear angle(s) for the x and y axes respectively. These can be
specified in either degrees (default) or radians by setting
use_radians=True.
:param point: Origin point for Skew
point: tuple of coordinates (x,y)
See shapely manual for more information: http://toblerity.org/shapely/manual.html#affine-transformations
"""
log.debug("camlib.Geometry.skew()")
px, py = point
def skew_geom(obj):
try:
new_obj = []
for g in obj:
new_obj.append(skew_geom(g))
return new_obj
except TypeError:
try:
self.el_count += 1
disp_number = int(np.interp(self.el_count, [0, self.geo_len], [0, 100]))
if self.old_disp_number < disp_number <= 100:
self.app.proc_container.update_view_text(' %d%%' % disp_number)
self.old_disp_number = disp_number
return affinity.skew(obj, angle_x, angle_y, origin=(px, py))
except AttributeError:
return obj
try:
if self.multigeo is True:
for tool in self.tools:
# variables to display the percentage of work done
self.geo_len = 0
try:
self.geo_len = len(self.tools[tool]['solid_geometry'])
except TypeError:
self.geo_len = 1
self.old_disp_number = 0
self.el_count = 0
self.tools[tool]['solid_geometry'] = skew_geom(self.tools[tool]['solid_geometry'])
else:
# variables to display the percentage of work done
self.geo_len = 0
try:
self.geo_len = len(self.solid_geometry)
except TypeError:
self.geo_len = 1
self.old_disp_number = 0
self.el_count = 0
self.solid_geometry = skew_geom(self.solid_geometry)
self.app.inform.emit('[success] %s...' % _('Object was skewed'))
except AttributeError:
self.app.inform.emit('[ERROR_NOTCL] %s %s' % (_("Failed."), _("No object is selected.")))
self.app.proc_container.new_text = ''
# if type(self.solid_geometry) == list:
# self.solid_geometry = [affinity.skew(g, angle_x, angle_y, origin=(px, py))
# for g in self.solid_geometry]
# else:
# self.solid_geometry = affinity.skew(self.solid_geometry, angle_x, angle_y,
# origin=(px, py))
def buffer(self, distance, join, factor):
"""
:param distance: if 'factor' is True then distance is the factor
:param join: The kind of join used by the shapely buffer method: round, square or bevel
:param factor: True or False (None)
:return:
"""
log.debug("camlib.Geometry.buffer()")
if distance == 0:
return
def buffer_geom(obj):
if type(obj) is list:
new_obj = []
for g in obj:
new_obj.append(buffer_geom(g))
return new_obj
else:
try:
self.el_count += 1
disp_number = int(np.interp(self.el_count, [0, self.geo_len], [0, 100]))
if self.old_disp_number < disp_number <= 100:
self.app.proc_container.update_view_text(' %d%%' % disp_number)
self.old_disp_number = disp_number
if factor is None:
return obj.buffer(distance, resolution=self.geo_steps_per_circle, join_style=join)
else:
return affinity.scale(obj, xfact=distance, yfact=distance, origin='center')
except AttributeError:
return obj
try:
if self.multigeo is True:
for tool in self.tools:
# variables to display the percentage of work done
self.geo_len = 0
try:
self.geo_len += len(self.tools[tool]['solid_geometry'])
except TypeError:
self.geo_len += 1
self.old_disp_number = 0
self.el_count = 0
res = buffer_geom(self.tools[tool]['solid_geometry'])
try:
__ = iter(res)
self.tools[tool]['solid_geometry'] = res
except TypeError:
self.tools[tool]['solid_geometry'] = [res]
# variables to display the percentage of work done
self.geo_len = 0
try:
self.geo_len = len(self.solid_geometry)
except TypeError:
self.geo_len = 1
self.old_disp_number = 0
self.el_count = 0
self.solid_geometry = buffer_geom(self.solid_geometry)
self.app.inform.emit('[success] %s...' % _('Object was buffered'))
except AttributeError:
self.app.inform.emit('[ERROR_NOTCL] %s %s' % (_("Failed."), _("No object is selected.")))
self.app.proc_container.new_text = ''
class AttrDict(dict):
def __init__(self, *args, **kwargs):
super(AttrDict, self).__init__(*args, **kwargs)
self.__dict__ = self
class CNCjob(Geometry):
"""
Represents work to be done by a CNC machine.
*ATTRIBUTES*
* ``gcode_parsed`` (list): Each is a dictionary:
===================== =========================================
Key Value
===================== =========================================
geom (Shapely.LineString) Tool path (XY plane)
kind (string) "AB", A is "T" (travel) or
"C" (cut). B is "F" (fast) or "S" (slow).
===================== =========================================
"""
defaults = {
"global_zdownrate": None,
"pp_geometry_name": 'default',
"pp_excellon_name": 'default',
"excellon_optimization_type": "B",
}
settings = QtCore.QSettings("Open Source", "FlatCAM")
if settings.contains("machinist"):
machinist_setting = settings.value('machinist', type=int)
else:
machinist_setting = 0
def __init__(self,
units="in", kind="generic", tooldia=0.0,
z_cut=-0.002, z_move=0.1,
feedrate=3.0, feedrate_z=3.0, feedrate_rapid=3.0, feedrate_probe=3.0,
pp_geometry_name='default', pp_excellon_name='default',
depthpercut=0.1, z_pdepth=-0.02,
spindlespeed=None, spindledir='CW', dwell=True, dwelltime=1000,
toolchangez=0.787402, toolchange_xy='0.0,0.0',
endz=2.0, endxy='',
segx=None,
segy=None,
steps_per_circle=None):
self.decimals = self.app.decimals
# Used when parsing G-code arcs
self.steps_per_circle = steps_per_circle if steps_per_circle is not None else \
int(self.app.defaults['cncjob_steps_per_circle'])
Geometry.__init__(self, geo_steps_per_circle=self.steps_per_circle)
self.kind = kind
self.units = units
self.z_cut = z_cut
self.multidepth = False
self.z_depthpercut = depthpercut
self.z_move = z_move
self.feedrate = feedrate
self.z_feedrate = feedrate_z
self.feedrate_rapid = feedrate_rapid
self.tooldia = tooldia
self.toolC = tooldia
self.toolchange = False
self.z_toolchange = toolchangez
self.xy_toolchange = toolchange_xy
self.toolchange_xy_type = None
self.startz = None
self.z_end = endz
self.xy_end = endxy
self.extracut = False
self.extracut_length = None
self.tolerance = self.drawing_tolerance
# used by the self.generate_from_excellon_by_tool() method
# but set directly before the actual usage of the method with obj.excellon_optimization_type = value
self.excellon_optimization_type = 'No'
# if set True then the GCode generation will use UI; used in Excellon GVode for now
self.use_ui = False
self.unitcode = {"IN": "G20", "MM": "G21"}
self.feedminutecode = "G94"
# self.absolutecode = "G90"
# self.incrementalcode = "G91"
self.coordinates_type = self.app.defaults["cncjob_coords_type"]
self.gcode = ""
self.gcode_parsed = None
self.pp_geometry_name = pp_geometry_name
self.pp_geometry = self.app.preprocessors[self.pp_geometry_name]
self.pp_excellon_name = pp_excellon_name
self.pp_excellon = self.app.preprocessors[self.pp_excellon_name]
self.pp_solderpaste_name = None
# Controls if the move from Z_Toolchange to Z_Move is done fast with G0 or normally with G1
self.f_plunge = None
# Controls if the move from Z_Cutto Z_Move is done fast with G0 or G1 until zero and then G0 to Z_move
self.f_retract = None
# how much depth the probe can probe before error
self.z_pdepth = z_pdepth if z_pdepth else None
# the feedrate(speed) with which the probel travel while probing
self.feedrate_probe = feedrate_probe if feedrate_probe else None
self.spindlespeed = spindlespeed
self.spindledir = spindledir
self.dwell = dwell
self.dwelltime = dwelltime
self.segx = float(segx) if segx is not None else 0.0
self.segy = float(segy) if segy is not None else 0.0
self.input_geometry_bounds = None
self.oldx = None
self.oldy = None
self.tool = 0.0
self.measured_distance = 0.0
self.measured_down_distance = 0.0
self.measured_up_to_zero_distance = 0.0
self.measured_lift_distance = 0.0
# here store the travelled distance
self.travel_distance = 0.0
# here store the routing time
self.routing_time = 0.0
# store here the Excellon source object tools to be accessible locally
self.exc_tools = None
# search for toolchange parameters in the Toolchange Custom Code
self.re_toolchange_custom = re.compile(r'(%[a-zA-Z0-9\-_]+%)')
# search for toolchange code: M6
self.re_toolchange = re.compile(r'^\s*(M6)$')
# Attributes to be included in serialization
# Always append to it because it carries contents
# from Geometry.
self.ser_attrs += ['kind', 'z_cut', 'z_move', 'z_toolchange', 'feedrate', 'z_feedrate', 'feedrate_rapid',
'tooldia', 'gcode', 'input_geometry_bounds', 'gcode_parsed', 'steps_per_circle',
'z_depthpercut', 'spindlespeed', 'dwell', 'dwelltime']
@property
def postdata(self):
"""
This will return all the attributes of the class in the form of a dictionary
:return: Class attributes
:rtype: dict
"""
return self.__dict__
def convert_units(self, units):
"""
Will convert the parameters in the class that are relevant, from metric to imperial and reverse
:param units: FlatCAM units
:type units: str
:return: conversion factor
:rtype: float
"""
log.debug("camlib.CNCJob.convert_units()")
factor = Geometry.convert_units(self, units)
self.z_cut = float(self.z_cut) * factor
self.z_move *= factor
self.feedrate *= factor
self.z_feedrate *= factor
self.feedrate_rapid *= factor
self.tooldia *= factor
self.z_toolchange *= factor
self.z_end *= factor
self.z_depthpercut = float(self.z_depthpercut) * factor
return factor
def doformat(self, fun, **kwargs):
return self.doformat2(fun, **kwargs) + "\n"
def doformat2(self, fun, **kwargs):
"""
This method will call one of the current preprocessor methods having as parameters all the attributes of
current class to which will add the kwargs parameters
:param fun: One of the methods inside the preprocessor classes which get loaded here in the 'p' object
:type fun: class 'function'
:param kwargs: keyword args which will update attributes of the current class
:type kwargs: dict
:return: Gcode line
:rtype: str
"""
attributes = AttrDict()
attributes.update(self.postdata)
attributes.update(kwargs)
try:
returnvalue = fun(attributes)
return returnvalue
except Exception:
self.app.log.error('Exception occurred within a preprocessor: ' + traceback.format_exc())
return ''
def parse_custom_toolchange_code(self, data):
"""
Will parse a text and get a toolchange sequence in text format suitable to be included in a Gcode file.
The '%' symbol is used to surround class variables name and must be removed in the returned string.
After that, the class variables (attributes) are replaced with the current values. The result is returned.
:param data: Toolchange sequence
:type data: str
:return: Processed toolchange sequence
:rtype: str
"""
text = data
match_list = self.re_toolchange_custom.findall(text)
if match_list:
for match in match_list:
command = match.strip('%')
try:
value = getattr(self, command)
except AttributeError:
self.app.inform.emit('[ERROR] %s: %s' %
(_("There is no such parameter"), str(match)))
log.debug("CNCJob.parse_custom_toolchange_code() --> AttributeError ")
return 'fail'
text = text.replace(match, str(value))
return text
# Distance callback
class CreateDistanceCallback(object):
"""Create callback to calculate distances between points."""
def __init__(self, locs, manager):
self.manager = manager
self.matrix = {}
if locs:
size = len(locs)
for from_node in range(size):
self.matrix[from_node] = {}
for to_node in range(size):
if from_node == to_node:
self.matrix[from_node][to_node] = 0
else:
x1 = locs[from_node][0]
y1 = locs[from_node][1]
x2 = locs[to_node][0]
y2 = locs[to_node][1]
self.matrix[from_node][to_node] = distance_euclidian(x1, y1, x2, y2)
# def Distance(self, from_node, to_node):
# return int(self.matrix[from_node][to_node])
def Distance(self, from_index, to_index):
# Convert from routing variable Index to distance matrix NodeIndex.
from_node = self.manager.IndexToNode(from_index)
to_node = self.manager.IndexToNode(to_index)
return self.matrix[from_node][to_node]
@staticmethod
def create_tool_data_array(points):
# Create the data.
return [(pt.coords.xy[0][0], pt.coords.xy[1][0]) for pt in points]
def optimized_ortools_meta(self, locations, start=None, opt_time=0):
optimized_path = []
tsp_size = len(locations)
num_routes = 1 # The number of routes, which is 1 in the TSP.
# Nodes are indexed from 0 to tsp_size - 1. The depot is the starting node of the route.
depot = 0 if start is None else start
# Create routing model.
if tsp_size == 0:
log.warning('OR-tools metaheuristics - Specify an instance greater than 0.')
return optimized_path
manager = pywrapcp.RoutingIndexManager(tsp_size, num_routes, depot)
routing = pywrapcp.RoutingModel(manager)
search_parameters = pywrapcp.DefaultRoutingSearchParameters()
search_parameters.local_search_metaheuristic = (
routing_enums_pb2.LocalSearchMetaheuristic.GUIDED_LOCAL_SEARCH)
# Set search time limit in milliseconds.
if float(opt_time) != 0:
search_parameters.time_limit.seconds = int(
float(opt_time))
else:
search_parameters.time_limit.seconds = 3
# Callback to the distance function. The callback takes two
# arguments (the from and to node indices) and returns the distance between them.
dist_between_locations = self.CreateDistanceCallback(locs=locations, manager=manager)
# if there are no distances then go to the next tool
if not dist_between_locations:
return
dist_callback = dist_between_locations.Distance
transit_callback_index = routing.RegisterTransitCallback(dist_callback)
routing.SetArcCostEvaluatorOfAllVehicles(transit_callback_index)
# Solve, returns a solution if any.
assignment = routing.SolveWithParameters(search_parameters)
if assignment:
# Solution cost.
log.info("OR-tools metaheuristics - Total distance: " + str(assignment.ObjectiveValue()))
# Inspect solution.
# Only one route here; otherwise iterate from 0 to routing.vehicles() - 1.
route_number = 0
node = routing.Start(route_number)
start_node = node
while not routing.IsEnd(node):
if self.app.abort_flag:
# graceful abort requested by the user
raise grace
optimized_path.append(node)
node = assignment.Value(routing.NextVar(node))
else:
log.warning('OR-tools metaheuristics - No solution found.')
return optimized_path
# ############################################# ##
def optimized_ortools_basic(self, locations, start=None):
optimized_path = []
tsp_size = len(locations)
num_routes = 1 # The number of routes, which is 1 in the TSP.
# Nodes are indexed from 0 to tsp_size - 1. The depot is the starting node of the route.
depot = 0 if start is None else start
# Create routing model.
if tsp_size == 0:
log.warning('Specify an instance greater than 0.')
return optimized_path
manager = pywrapcp.RoutingIndexManager(tsp_size, num_routes, depot)
routing = pywrapcp.RoutingModel(manager)
search_parameters = pywrapcp.DefaultRoutingSearchParameters()
# Callback to the distance function. The callback takes two
# arguments (the from and to node indices) and returns the distance between them.
dist_between_locations = self.CreateDistanceCallback(locs=locations, manager=manager)
# if there are no distances then go to the next tool
if not dist_between_locations:
return
dist_callback = dist_between_locations.Distance
transit_callback_index = routing.RegisterTransitCallback(dist_callback)
routing.SetArcCostEvaluatorOfAllVehicles(transit_callback_index)
# Solve, returns a solution if any.
assignment = routing.SolveWithParameters(search_parameters)
if assignment:
# Solution cost.
log.info("Total distance: " + str(assignment.ObjectiveValue()))
# Inspect solution.
# Only one route here; otherwise iterate from 0 to routing.vehicles() - 1.
route_number = 0
node = routing.Start(route_number)
start_node = node
while not routing.IsEnd(node):
optimized_path.append(node)
node = assignment.Value(routing.NextVar(node))
else:
log.warning('No solution found.')
return optimized_path
# ############################################# ##
def optimized_travelling_salesman(self, points, start=None):
"""
As solving the problem in the brute force way is too slow,
this function implements a simple heuristic: always
go to the nearest city.
Even if this algorithm is extremely simple, it works pretty well
giving a solution only about 25%% longer than the optimal one (cit. Wikipedia),
and runs very fast in O(N^2) time complexity.
>>> optimized_travelling_salesman([[i,j] for i in range(5) for j in range(5)])
[[0, 0], [0, 1], [0, 2], [0, 3], [0, 4], [1, 4], [1, 3], [1, 2], [1, 1], [1, 0], [2, 0], [2, 1], [2, 2],
[2, 3], [2, 4], [3, 4], [3, 3], [3, 2], [3, 1], [3, 0], [4, 0], [4, 1], [4, 2], [4, 3], [4, 4]]
>>> optimized_travelling_salesman([[0,0],[10,0],[6,0]])
[[0, 0], [6, 0], [10, 0]]
:param points: List of tuples with x, y coordinates
:type points: list
:param start: a tuple with a x,y coordinates of the start point
:type start: tuple
:return: List of points ordered in a optimized way
:rtype: list
"""
if start is None:
start = points[0]
must_visit = points
path = [start]
# must_visit.remove(start)
while must_visit:
nearest = min(must_visit, key=lambda x: distance(path[-1], x))
path.append(nearest)
must_visit.remove(nearest)
return path
def geo_optimized_rtree(self, geometry):
locations = []
# ## Index first and last points in paths. What points to index.
def get_pts(o):
return [o.coords[0], o.coords[-1]]
# Create the indexed storage.
storage = FlatCAMRTreeStorage()
storage.get_points = get_pts
# Store the geometry
log.debug("Indexing geometry before generating G-Code...")
self.app.inform.emit(_("Indexing geometry before generating G-Code..."))
for geo_shape in geometry:
if self.app.abort_flag:
# graceful abort requested by the user
raise grace
if geo_shape is not None:
storage.insert(geo_shape)
current_pt = (0, 0)
pt, geo = storage.nearest(current_pt)
try:
while True:
storage.remove(geo)
locations.append((pt, geo))
current_pt = geo.coords[-1]
pt, geo = storage.nearest(current_pt)
except StopIteration:
pass
# if there are no locations then go to the next tool
if not locations:
return 'fail'
return locations
def check_zcut(self, zcut):
if zcut > 0:
self.app.inform.emit('[WARNING] %s' %
_("The Cut Z parameter has positive value. "
"It is the depth value to drill into material.\n"
"The Cut Z parameter needs to have a negative value, assuming it is a typo "
"therefore the app will convert the value to negative. "
"Check the resulting CNC code (Gcode etc)."))
return -zcut
elif zcut == 0:
self.app.inform.emit('[WARNING] %s.' % _("The Cut Z parameter is zero. There will be no cut, aborting"))
return 'fail'
else:
return zcut
# used in Tool Drilling
def excellon_tool_gcode_gen(self, tool, points, tools, first_pt, is_first=False, is_last=False, opt_type='T',
toolchange=False):
"""
Creates Gcode for this object from an Excellon object
for the specified tools.
:return: A tuple made from tool_gcode, another tuple holding the coordinates of the last point
and the start gcode
:rtype: tuple
"""
log.debug("Creating CNC Job from Excellon for tool: %s" % str(tool))
self.exc_tools = deepcopy(tools)
t_gcode = ''
# holds the temporary coordinates of the processed drill point
locx, locy = first_pt
temp_locx, temp_locy = first_pt
# #############################################################################################################
# #############################################################################################################
# ################################## DRILLING !!! #########################################################
# #############################################################################################################
# #############################################################################################################
if opt_type == 'M':
log.debug("Using OR-Tools Metaheuristic Guided Local Search drill path optimization.")
elif opt_type == 'B':
log.debug("Using OR-Tools Basic drill path optimization.")
elif opt_type == 'T':
log.debug("Using Travelling Salesman drill path optimization.")
else:
log.debug("Using no path optimization.")
tool_dict = tools[tool]['data']
# check if it has drills
if not points:
log.debug("Failed. No drills for tool: %s" % str(tool))
return 'fail'
if self.app.abort_flag:
# graceful abort requested by the user
raise grace
# #########################################################################################################
# #########################################################################################################
# ############# PARAMETERS used in PREPROCESSORS so they need to be updated ###############################
# #########################################################################################################
# #########################################################################################################
self.tool = str(tool)
# Preprocessor
p = self.pp_excellon
# Z_cut parameter
if self.machinist_setting == 0:
self.z_cut = self.check_zcut(zcut=tool_dict["tools_drill_cutz"])
if self.z_cut == 'fail':
return 'fail'
# Depth parameters
self.z_cut = tool_dict['tools_drill_cutz']
old_zcut = deepcopy(tool_dict["tools_drill_cutz"]) # multidepth use this
self.multidepth = tool_dict['tools_drill_multidepth']
self.z_depthpercut = tool_dict['tools_drill_depthperpass']
self.z_move = tool_dict['tools_drill_travelz']
self.f_plunge = tool_dict["tools_drill_f_plunge"] # used directly in the preprocessor Toolchange method
self.f_retract = tool_dict["tools_drill_f_retract"] # used in the current method
# Feedrate parameters
self.z_feedrate = tool_dict['tools_drill_feedrate_z']
self.feedrate = tool_dict['tools_drill_feedrate_z']
self.feedrate_rapid = tool_dict['tools_drill_feedrate_rapid']
# Spindle parameters
self.spindlespeed = tool_dict['tools_drill_spindlespeed']
self.dwell = tool_dict['tools_drill_dwell']
self.dwelltime = tool_dict['tools_drill_dwelltime']
self.spindledir = tool_dict['tools_drill_spindledir']
self.tooldia = tools[tool]["tooldia"]
self.postdata['toolC'] = tools[tool]["tooldia"]
self.toolchange = toolchange
# Z_toolchange parameter
self.z_toolchange = tool_dict['tools_drill_toolchangez']
# XY_toolchange parameter
self.xy_toolchange = tool_dict["tools_drill_toolchangexy"]
try:
if self.xy_toolchange == '':
self.xy_toolchange = None
else:
# either originally it was a string or not, xy_toolchange will be made string
self.xy_toolchange = re.sub('[()\[\]]', '', str(self.xy_toolchange)) if self.xy_toolchange else None
# and now, xy_toolchange is made into a list of floats in format [x, y]
if self.xy_toolchange:
self.xy_toolchange = [float(eval(a)) for a in self.xy_toolchange.split(",")]
if self.xy_toolchange and len(self.xy_toolchange) != 2:
self.app.inform.emit('[ERROR] %s' % _("The Toolchange X,Y format has to be (x, y)."))
return 'fail'
except Exception as e:
log.debug("camlib.CNCJob.generate_from_excellon_by_tool() xy_toolchange --> %s" % str(e))
self.xy_toolchange = [0, 0]
# End position parameters
self.startz = tool_dict["tools_drill_startz"]
if self.startz == '':
self.startz = None
self.z_end = tool_dict["tools_drill_endz"]
self.xy_end = tool_dict["tools_drill_endxy"]
try:
if self.xy_end == '':
self.xy_end = None
else:
# either originally it was a string or not, xy_end will be made string
self.xy_end = re.sub('[()\[\]]', '', str(self.xy_end)) if self.xy_end else None
# and now, xy_end is made into a list of floats in format [x, y]
if self.xy_end:
self.xy_end = [float(eval(a)) for a in self.xy_end.split(",")]
if self.xy_end and len(self.xy_end) != 2:
self.app.inform.emit('[ERROR] %s' % _("The End X,Y format has to be (x, y)."))
return 'fail'
except Exception as e:
log.debug("camlib.CNCJob.generate_from_excellon_by_tool() xy_end --> %s" % str(e))
self.xy_end = [0, 0]
# Probe parameters
self.z_pdepth = tool_dict["tools_drill_z_pdepth"]
self.feedrate_probe = tool_dict["tools_drill_feedrate_probe"]
# #########################################################################################################
# #########################################################################################################
# #########################################################################################################
# ############ Create the data. ###########################################################################
# #########################################################################################################
locations = []
optimized_path = []
if opt_type == 'M':
locations = self.create_tool_data_array(points=points)
# if there are no locations then go to the next tool
if not locations:
return 'fail'
opt_time = self.app.defaults["excellon_search_time"]
optimized_path = self.optimized_ortools_meta(locations=locations, opt_time=opt_time)
elif opt_type == 'B':
locations = self.create_tool_data_array(points=points)
# if there are no locations then go to the next tool
if not locations:
return 'fail'
optimized_path = self.optimized_ortools_basic(locations=locations)
elif opt_type == 'T':
locations = self.create_tool_data_array(points=points)
# if there are no locations then go to the next tool
if not locations:
return 'fail'
optimized_path = self.optimized_travelling_salesman(locations)
else:
# it's actually not optimized path but here we build a list of (x,y) coordinates
# out of the tool's drills
for drill in tools[tool]['drills']:
unoptimized_coords = (
drill.x,
drill.y
)
optimized_path.append(unoptimized_coords)
# #########################################################################################################
# #########################################################################################################
# Only if there are locations to drill
if not optimized_path:
log.debug("CNCJob.excellon_tool_gcode_gen() -> Optimized path is empty.")
return 'fail'
if self.app.abort_flag:
# graceful abort requested by the user
raise grace
start_gcode = ''
if is_first:
start_gcode = self.doformat(p.start_code)
# t_gcode += start_gcode
# do the ToolChange event
t_gcode += self.doformat(p.z_feedrate_code)
t_gcode += self.doformat(p.toolchange_code, toolchangexy=(temp_locx, temp_locy))
t_gcode += self.doformat(p.z_feedrate_code)
# Spindle start
t_gcode += self.doformat(p.spindle_code)
# Dwell time
if self.dwell is True:
t_gcode += self.doformat(p.dwell_code)
current_tooldia = self.app.dec_format(float(tools[tool]["tooldia"]), self.decimals)
self.app.inform.emit(
'%s: %s%s.' % (_("Starting G-Code for tool with diameter"), str(current_tooldia), str(self.units))
)
# !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
# APPLY Offset only when using the appGUI, for TclCommand this will create an error
# because the values for Z offset are created in build_tool_ui()
# !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
try:
z_offset = float(tool_dict['tools_drill_offset']) * (-1)
except KeyError:
z_offset = 0
self.z_cut = z_offset + old_zcut
self.coordinates_type = self.app.defaults["cncjob_coords_type"]
if self.coordinates_type == "G90":
# Drillling! for Absolute coordinates type G90
# variables to display the percentage of work done
geo_len = len(optimized_path)
old_disp_number = 0
log.warning("Number of drills for which to generate GCode: %s" % str(geo_len))
loc_nr = 0
for point in optimized_path:
if self.app.abort_flag:
# graceful abort requested by the user
raise grace
# if we use Traveling Salesman Algorithm as an optimization
if opt_type == 'T':
locx = point[0]
locy = point[1]
else:
locx = locations[point][0]
locy = locations[point][1]
travels = self.app.exc_areas.travel_coordinates(start_point=(temp_locx, temp_locy),
end_point=(locx, locy),
tooldia=current_tooldia)
prev_z = None
for travel in travels:
locx = travel[1][0]
locy = travel[1][1]
if travel[0] is not None:
# move to next point
t_gcode += self.doformat(p.rapid_code, x=locx, y=locy)
# raise to safe Z (travel[0]) each time because safe Z may be different
self.z_move = travel[0]
t_gcode += self.doformat(p.lift_code, x=locx, y=locy)
# restore z_move
self.z_move = tool_dict['tools_drill_travelz']
else:
if prev_z is not None:
# move to next point
t_gcode += self.doformat(p.rapid_code, x=locx, y=locy)
# we assume that previously the z_move was altered therefore raise to
# the travel_z (z_move)
self.z_move = tool_dict['tools_drill_travelz']
t_gcode += self.doformat(p.lift_code, x=locx, y=locy)
else:
# move to next point
t_gcode += self.doformat(p.rapid_code, x=locx, y=locy)
# store prev_z
prev_z = travel[0]
# t_gcode += self.doformat(p.rapid_code, x=locx, y=locy)
if self.multidepth and abs(self.z_cut) > abs(self.z_depthpercut):
doc = deepcopy(self.z_cut)
self.z_cut = 0.0
while abs(self.z_cut) < abs(doc):
self.z_cut -= self.z_depthpercut
if abs(doc) < abs(self.z_cut) < (abs(doc) + self.z_depthpercut):
self.z_cut = doc
# Move down the drill bit
t_gcode += self.doformat(p.down_code, x=locx, y=locy)
# Update the distance travelled down with the current one
self.measured_down_distance += abs(self.z_cut) + abs(self.z_move)
if self.f_retract is False:
t_gcode += self.doformat(p.up_to_zero_code, x=locx, y=locy)
self.measured_up_to_zero_distance += abs(self.z_cut)
self.measured_lift_distance += abs(self.z_move)
else:
self.measured_lift_distance += abs(self.z_cut) + abs(self.z_move)
t_gcode += self.doformat(p.lift_code, x=locx, y=locy)
else:
t_gcode += self.doformat(p.down_code, x=locx, y=locy)
self.measured_down_distance += abs(self.z_cut) + abs(self.z_move)
if self.f_retract is False:
t_gcode += self.doformat(p.up_to_zero_code, x=locx, y=locy)
self.measured_up_to_zero_distance += abs(self.z_cut)
self.measured_lift_distance += abs(self.z_move)
else:
self.measured_lift_distance += abs(self.z_cut) + abs(self.z_move)
t_gcode += self.doformat(p.lift_code, x=locx, y=locy)
self.measured_distance += abs(distance_euclidian(locx, locy, temp_locx, temp_locy))
temp_locx = locx
temp_locy = locy
self.oldx = locx
self.oldy = locy
loc_nr += 1
disp_number = int(np.interp(loc_nr, [0, geo_len], [0, 100]))
if old_disp_number < disp_number <= 100:
self.app.proc_container.update_view_text(' %d%%' % disp_number)
old_disp_number = disp_number
else:
self.app.inform.emit('[ERROR_NOTCL] %s...' % _('G91 coordinates not implemented'))
return 'fail'
self.z_cut = deepcopy(old_zcut)
if is_last:
t_gcode += self.doformat(p.spindle_stop_code)
# Move to End position
t_gcode += self.doformat(p.end_code, x=0, y=0)
self.app.inform.emit('%s %s' % (_("Finished G-Code generation for tool:"), str(tool)))
return t_gcode, (locx, locy), start_gcode
# used in Geometry (and soon in Tool Milling)
def geometry_tool_gcode_gen(self, tool, tools, first_pt, tolerance, is_first=False, is_last=False,
toolchange=False):
"""
Algorithm to generate GCode from multitool Geometry.
:param tool: tool number for which to generate GCode
:type tool: int
:param tools: a dictionary holding all the tools and data
:type tools: dict
:param first_pt: a tuple of coordinates for the first point of the current tool
:type first_pt: tuple
:param tolerance: geometry tolerance
:type tolerance:
:param is_first: if the current tool is the first tool (for this we need to add start GCode)
:type is_first: bool
:param is_last: if the current tool is the last tool (for this we need to add the end GCode)
:type is_last: bool
:param toolchange: add toolchange event
:type toolchange: bool
:return: GCode
:rtype: str
"""
log.debug("geometry_tool_gcode_gen()")
t_gcode = ''
temp_solid_geometry = []
# The Geometry from which we create GCode
geometry = tools[tool]['solid_geometry']
# ## Flatten the geometry. Only linear elements (no polygons) remain.
flat_geometry = self.flatten(geometry, reset=True, pathonly=True)
log.debug("%d paths" % len(flat_geometry))
# #########################################################################################################
# #########################################################################################################
# ############# PARAMETERS used in PREPROCESSORS so they need to be updated ###############################
# #########################################################################################################
# #########################################################################################################
self.tool = str(tool)
tool_dict = tools[tool]['data']
# this is the tool diameter, it is used as such to accommodate the preprocessor who need the tool diameter
# given under the name 'toolC'
self.postdata['toolC'] = float(tools[tool]['tooldia'])
self.tooldia = float(tools[tool]['tooldia'])
self.use_ui = True
self.tolerance = tolerance
# Optimization type. Can be: 'M', 'B', 'T', 'R', 'No'
opt_type = tool_dict['optimization_type']
opt_time = tool_dict['search_time'] if 'search_time' in tool_dict else 'R'
if opt_type == 'M':
log.debug("Using OR-Tools Metaheuristic Guided Local Search path optimization.")
elif opt_type == 'B':
log.debug("Using OR-Tools Basic path optimization.")
elif opt_type == 'T':
log.debug("Using Travelling Salesman path optimization.")
elif opt_type == 'R':
log.debug("Using RTree path optimization.")
else:
log.debug("Using no path optimization.")
# Preprocessor
self.pp_geometry_name = tool_dict['ppname_g']
self.pp_geometry = self.app.preprocessors[self.pp_geometry_name]
p = self.pp_geometry
# Offset the Geometry if it is the case
if tools[tool]['offset'].lower() == 'in':
tool_offset = -float(tools[tool]['tooldia']) / 2.0
elif tools[tool]['offset'].lower() == 'out':
tool_offset = float(tools[tool]['tooldia']) / 2.0
elif tools[tool]['offset'].lower() == 'custom':
tool_offset = tools[tool]['offset_value']
else:
tool_offset = 0.0
if tool_offset != 0.0:
for it in flat_geometry:
# if the geometry is a closed shape then create a Polygon out of it
if isinstance(it, LineString):
if it.is_ring:
it = Polygon(it)
temp_solid_geometry.append(it.buffer(tool_offset, join_style=2))
temp_solid_geometry = self.flatten(temp_solid_geometry, reset=True, pathonly=True)
else:
temp_solid_geometry = flat_geometry
if self.z_cut is None:
if 'laser' not in self.pp_geometry_name:
self.app.inform.emit(
'[ERROR_NOTCL] %s' % _("Cut_Z parameter is None or zero. Most likely a bad combinations of "
"other parameters."))
return 'fail'
else:
self.z_cut = 0
if self.machinist_setting == 0:
if self.z_cut > 0:
self.app.inform.emit('[WARNING] %s' %
_("The Cut Z parameter has positive value. "
"It is the depth value to cut into material.\n"
"The Cut Z parameter needs to have a negative value, assuming it is a typo "
"therefore the app will convert the value to negative."
"Check the resulting CNC code (Gcode etc)."))
self.z_cut = -self.z_cut
elif self.z_cut == 0 and 'laser' not in self.pp_geometry_name:
self.app.inform.emit('[WARNING] %s: %s' %
(_("The Cut Z parameter is zero. There will be no cut, skipping file"),
self.options['name']))
return 'fail'
if self.z_move is None:
self.app.inform.emit('[ERROR_NOTCL] %s' % _("Travel Z parameter is None or zero."))
return 'fail'
if self.z_move < 0:
self.app.inform.emit('[WARNING] %s' %
_("The Travel Z parameter has negative value. "
"It is the height value to travel between cuts.\n"
"The Z Travel parameter needs to have a positive value, assuming it is a typo "
"therefore the app will convert the value to positive."
"Check the resulting CNC code (Gcode etc)."))
self.z_move = -self.z_move
elif self.z_move == 0:
self.app.inform.emit('[WARNING] %s: %s' %
(_("The Z Travel parameter is zero. This is dangerous, skipping file"),
self.options['name']))
return 'fail'
# made sure that depth_per_cut is no more then the z_cut
if abs(self.z_cut) < self.z_depthpercut:
self.z_depthpercut = abs(self.z_cut)
# Depth parameters
self.z_cut = float(tool_dict['cutz'])
self.multidepth = tool_dict['multidepth']
self.z_depthpercut = float(tool_dict['depthperpass'])
self.z_move = float(tool_dict['travelz'])
self.f_plunge = self.app.defaults["geometry_f_plunge"]
self.feedrate = float(tool_dict['feedrate'])
self.z_feedrate = float(tool_dict['feedrate_z'])
self.feedrate_rapid = float(tool_dict['feedrate_rapid'])
self.spindlespeed = float(tool_dict['spindlespeed'])
try:
self.spindledir = tool_dict['spindledir']
except KeyError:
self.spindledir = self.app.defaults["geometry_spindledir"]
self.dwell = tool_dict['dwell']
self.dwelltime = float(tool_dict['dwelltime'])
self.startz = float(tool_dict['startz']) if tool_dict['startz'] else None
if self.startz == '':
self.startz = None
self.z_end = float(tool_dict['endz'])
self.xy_end = tool_dict['endxy']
try:
if self.xy_end == '' or self.xy_end is None:
self.xy_end = None
else:
# either originally it was a string or not, xy_end will be made string
self.xy_end = re.sub('[()\[\]]', '', str(self.xy_end)) if self.xy_end else None
# and now, xy_end is made into a list of floats in format [x, y]
if self.xy_end:
self.xy_end = [float(eval(a)) for a in self.xy_end.split(",")]
if self.xy_end and len(self.xy_end) != 2:
self.app.inform.emit('[ERROR]%s' % _("The End X,Y format has to be (x, y)."))
return 'fail'
except Exception as e:
log.debug("camlib.CNCJob.geometry_from_excellon_by_tool() xy_end --> %s" % str(e))
self.xy_end = [0, 0]
self.z_toolchange = tool_dict['toolchangez']
self.xy_toolchange = tool_dict["toolchangexy"]
try:
if self.xy_toolchange == '':
self.xy_toolchange = None
else:
# either originally it was a string or not, xy_toolchange will be made string
self.xy_toolchange = re.sub('[()\[\]]', '', str(self.xy_toolchange)) if self.xy_toolchange else None
# and now, xy_toolchange is made into a list of floats in format [x, y]
if self.xy_toolchange:
self.xy_toolchange = [float(eval(a)) for a in self.xy_toolchange.split(",")]
if self.xy_toolchange and len(self.xy_toolchange) != 2:
self.app.inform.emit('[ERROR] %s' % _("The Toolchange X,Y format has to be (x, y)."))
return 'fail'
except Exception as e:
log.debug("camlib.CNCJob.geometry_from_excellon_by_tool() --> %s" % str(e))
pass
self.extracut = tool_dict['extracut']
self.extracut_length = tool_dict['extracut_length']
# Probe parameters
# self.z_pdepth = tool_dict["tools_drill_z_pdepth"]
# self.feedrate_probe = tool_dict["tools_drill_feedrate_probe"]
# #########################################################################################################
# ############ Create the data. ###########################################################################
# #########################################################################################################
optimized_path = []
geo_storage = {}
for geo in temp_solid_geometry:
if not geo is None:
geo_storage[geo.coords[0]] = geo
locations = list(geo_storage.keys())
if opt_type == 'M':
# if there are no locations then go to the next tool
if not locations:
return 'fail'
optimized_locations = self.optimized_ortools_meta(locations=locations, opt_time=opt_time)
optimized_path = [(locations[loc], geo_storage[locations[loc]]) for loc in optimized_locations]
elif opt_type == 'B':
# if there are no locations then go to the next tool
if not locations:
return 'fail'
optimized_locations = self.optimized_ortools_basic(locations=locations)
optimized_path = [(locations[loc], geo_storage[locations[loc]]) for loc in optimized_locations]
elif opt_type == 'T':
# if there are no locations then go to the next tool
if not locations:
return 'fail'
optimized_locations = self.optimized_travelling_salesman(locations)
optimized_path = [(loc, geo_storage[loc]) for loc in optimized_locations]
elif opt_type == 'R':
optimized_path = self.geo_optimized_rtree(temp_solid_geometry)
if optimized_path == 'fail':
return 'fail'
else:
# it's actually not optimized path but here we build a list of (x,y) coordinates
# out of the tool's drills
for geo in temp_solid_geometry:
optimized_path.append(geo.coords[0])
# #########################################################################################################
# #########################################################################################################
# Only if there are locations to mill
if not optimized_path:
log.debug("camlib.CNCJob.geometry_tool_gcode_gen() -> Optimized path is empty.")
return 'fail'
if self.app.abort_flag:
# graceful abort requested by the user
raise grace
# #############################################################################################################
# #############################################################################################################
# ################# MILLING !!! ##############################################################################
# #############################################################################################################
# #############################################################################################################
log.debug("Starting G-Code...")
current_tooldia = float('%.*f' % (self.decimals, float(self.tooldia)))
self.app.inform.emit('%s: %s%s.' % (_("Starting G-Code for tool with diameter"),
str(current_tooldia),
str(self.units)))
# Measurements
total_travel = 0.0
total_cut = 0.0
# Start GCode
start_gcode = ''
if is_first:
start_gcode = self.doformat(p.start_code)
# t_gcode += start_gcode
# Toolchange code
t_gcode += self.doformat(p.feedrate_code) # sets the feed rate
if toolchange:
t_gcode += self.doformat(p.toolchange_code)
if 'laser' not in self.pp_geometry_name.lower():
t_gcode += self.doformat(p.spindle_code) # Spindle start
else:
# for laser this will disable the laser
t_gcode += self.doformat(p.lift_code, x=self.oldx, y=self.oldy) # Move (up) to travel height
if self.dwell:
t_gcode += self.doformat(p.dwell_code) # Dwell time
else:
t_gcode += self.doformat(p.lift_code, x=0, y=0) # Move (up) to travel height
t_gcode += self.doformat(p.startz_code, x=0, y=0)
if 'laser' not in self.pp_geometry_name.lower():
t_gcode += self.doformat(p.spindle_code) # Spindle start
if self.dwell is True:
t_gcode += self.doformat(p.dwell_code) # Dwell time
t_gcode += self.doformat(p.feedrate_code) # sets the feed rate
# ## Iterate over geometry paths getting the nearest each time.
path_count = 0
# variables to display the percentage of work done
geo_len = len(flat_geometry)
log.warning("Number of paths for which to generate GCode: %s" % str(geo_len))
old_disp_number = 0
current_pt = (0, 0)
for pt, geo in optimized_path:
if self.app.abort_flag:
# graceful abort requested by the user
raise grace
path_count += 1
# If last point in geometry is the nearest but prefer the first one if last point == first point
# then reverse coordinates.
if pt != geo.coords[0] and pt == geo.coords[-1]:
geo = LineString(list(geo.coords)[::-1])
# ---------- Single depth/pass --------
if not self.multidepth:
# calculate the cut distance
total_cut = total_cut + geo.length
t_gcode += self.create_gcode_single_pass(geo, current_tooldia, self.extracut,
self.extracut_length, self.tolerance,
z_move=self.z_move, old_point=current_pt)
# --------- Multi-pass ---------
else:
# calculate the cut distance
# due of the number of cuts (multi depth) it has to multiplied by the number of cuts
nr_cuts = 0
depth = abs(self.z_cut)
while depth > 0:
nr_cuts += 1
depth -= float(self.z_depthpercut)
total_cut += (geo.length * nr_cuts)
gc, geo = self.create_gcode_multi_pass(geo, current_tooldia, self.extracut,
self.extracut_length, self.tolerance,
z_move=self.z_move, postproc=p, old_point=current_pt)
t_gcode += gc
# calculate the total distance
total_travel = total_travel + abs(distance(pt1=current_pt, pt2=pt))
current_pt = geo.coords[-1]
disp_number = int(np.interp(path_count, [0, geo_len], [0, 100]))
if old_disp_number < disp_number <= 100:
self.app.proc_container.update_view_text(' %d%%' % disp_number)
old_disp_number = disp_number
log.debug("Finished G-Code... %s paths traced." % path_count)
# add move to end position
total_travel += abs(distance_euclidian(current_pt[0], current_pt[1], 0, 0))
self.travel_distance += total_travel + total_cut
self.routing_time += total_cut / self.feedrate
# Finish
if is_last:
t_gcode += self.doformat(p.spindle_stop_code)
t_gcode += self.doformat(p.lift_code, x=current_pt[0], y=current_pt[1])
t_gcode += self.doformat(p.end_code, x=0, y=0)
self.app.inform.emit(
'%s... %s %s.' % (_("Finished G-Code generation"), str(path_count), _("paths traced"))
)
self.gcode = t_gcode
return self.gcode, start_gcode
# used by the Tcl command Drillcncjob
def generate_from_excellon_by_tool(self, exobj, tools="all", order='fwd', is_first=False, use_ui=False):
"""
Creates Gcode for this object from an Excellon object
for the specified tools.
:param exobj: Excellon object to process
:type exobj: Excellon
:param tools: Comma separated tool names
:type tools: str
:param order: order of tools processing: "fwd", "rev" or "no"
:type order: str
:param is_first: if the tool is the first one should generate the start gcode (not that it matter much
which is the one doing it)
:type is_first: bool
:param use_ui: if True the method will use parameters set in UI
:type use_ui: bool
:return: None
:rtype: None
"""
# #############################################################################################################
# #############################################################################################################
# create a local copy of the exobj.tools so it can be used for creating drill CCode geometry
# #############################################################################################################
# #############################################################################################################
self.exc_tools = deepcopy(exobj.tools)
# the Excellon GCode preprocessor will use this info in the start_code() method
self.use_ui = True if use_ui else False
# Z_cut parameter
if self.machinist_setting == 0:
self.z_cut = self.check_zcut(zcut=self.z_cut)
if self.z_cut == 'fail':
return 'fail'
# multidepth use this
old_zcut = deepcopy(self.z_cut)
# XY_toolchange parameter
try:
if self.xy_toolchange == '':
self.xy_toolchange = None
else:
self.xy_toolchange = re.sub('[()\[\]]', '', str(self.xy_toolchange)) if self.xy_toolchange else None
if self.xy_toolchange:
self.xy_toolchange = [float(eval(a)) for a in self.xy_toolchange.split(",")]
if self.xy_toolchange and len(self.xy_toolchange) != 2:
self.app.inform.emit('[ERROR]%s' %
_("The Toolchange X,Y field in Edit -> Preferences has to be "
"in the format (x, y) \nbut now there is only one value, not two. "))
return 'fail'
except Exception as e:
log.debug("camlib.CNCJob.generate_from_excellon_by_tool() --> %s" % str(e))
pass
# XY_end parameter
self.xy_end = re.sub('[()\[\]]', '', str(self.xy_end)) if self.xy_end else None
if self.xy_end and self.xy_end != '':
self.xy_end = [float(eval(a)) for a in self.xy_end.split(",")]
if self.xy_end and len(self.xy_end) < 2:
self.app.inform.emit('[ERROR] %s' % _("The End Move X,Y field in Edit -> Preferences has to be "
"in the format (x, y) but now there is only one value, not two."))
return 'fail'
# Prepprocessor
self.pp_excellon = self.app.preprocessors[self.pp_excellon_name]
p = self.pp_excellon
log.debug("Creating CNC Job from Excellon...")
# #############################################################################################################
# #############################################################################################################
# TOOLS
# sort the tools list by the second item in tuple (here we have a dict with diameter of the tool)
# so we actually are sorting the tools by diameter
# #############################################################################################################
# #############################################################################################################
all_tools = []
for tool_as_key, v in list(self.exc_tools.items()):
all_tools.append((int(tool_as_key), float(v['tooldia'])))
if order == 'fwd':
sorted_tools = sorted(all_tools, key=lambda t1: t1[1])
elif order == 'rev':
sorted_tools = sorted(all_tools, key=lambda t1: t1[1], reverse=True)
else:
sorted_tools = all_tools
if tools == "all":
selected_tools = [i[0] for i in all_tools] # we get a array of ordered tools
else:
selected_tools = eval(tools)
# Create a sorted list of selected tools from the sorted_tools list
tools = [i for i, j in sorted_tools for k in selected_tools if i == k]
log.debug("Tools sorted are: %s" % str(tools))
# #############################################################################################################
# #############################################################################################################
# build a self.options['Tools_in_use'] list from scratch if we don't have one like in the case of
# running this method from a Tcl Command
# #############################################################################################################
# #############################################################################################################
build_tools_in_use_list = False
if 'Tools_in_use' not in self.options:
self.options['Tools_in_use'] = []
# if the list is empty (either we just added the key or it was already there but empty) signal to build it
if not self.options['Tools_in_use']:
build_tools_in_use_list = True
# #############################################################################################################
# #############################################################################################################
# fill the data into the self.exc_cnc_tools dictionary
# #############################################################################################################
# #############################################################################################################
for it in all_tools:
for to_ol in tools:
if to_ol == it[0]:
sol_geo = []
drill_no = 0
if 'drills' in exobj.tools[to_ol]:
drill_no = len(exobj.tools[to_ol]['drills'])
for drill in exobj.tools[to_ol]['drills']:
sol_geo.append(drill.buffer((it[1] / 2.0), resolution=self.geo_steps_per_circle))
slot_no = 0
if 'slots' in exobj.tools[to_ol]:
slot_no = len(exobj.tools[to_ol]['slots'])
for slot in exobj.tools[to_ol]['slots']:
start = (slot[0].x, slot[0].y)
stop = (slot[1].x, slot[1].y)
sol_geo.append(
LineString([start, stop]).buffer((it[1] / 2.0), resolution=self.geo_steps_per_circle)
)
if self.use_ui:
try:
z_off = float(exobj.tools[it[0]]['data']['tools_drill_offset']) * (-1)
except KeyError:
z_off = 0
else:
z_off = 0
default_data = {}
for k, v in list(self.options.items()):
default_data[k] = deepcopy(v)
# it[1] is the tool diameter
self.exc_cnc_tools[it[1]] = {}
self.exc_cnc_tools[it[1]]['tool'] = it[0]
self.exc_cnc_tools[it[1]]['nr_drills'] = drill_no
self.exc_cnc_tools[it[1]]['nr_slots'] = slot_no
self.exc_cnc_tools[it[1]]['offset_z'] = z_off
self.exc_cnc_tools[it[1]]['data'] = default_data
self.exc_cnc_tools[it[1]]['solid_geometry'] = deepcopy(sol_geo)
# build a self.options['Tools_in_use'] list from scratch if we don't have one like in the case of
# running this method from a Tcl Command
if build_tools_in_use_list is True:
self.options['Tools_in_use'].append(
[it[0], it[1], drill_no, slot_no]
)
self.app.inform.emit(_("Creating a list of points to drill..."))
# #############################################################################################################
# #############################################################################################################
# Points (Group by tool): a dictionary of shapely Point geo elements grouped by tool number
# #############################################################################################################
# #############################################################################################################
points = {}
for tool, tool_dict in self.exc_tools.items():
if tool in tools:
if self.app.abort_flag:
# graceful abort requested by the user
raise grace
if 'drills' in tool_dict and tool_dict['drills']:
for drill_pt in tool_dict['drills']:
try:
points[tool].append(drill_pt)
except KeyError:
points[tool] = [drill_pt]
log.debug("Found %d TOOLS with drills." % len(points))
# check if there are drill points in the exclusion areas.
# If we find any within the exclusion areas return 'fail'
for tool in points:
for pt in points[tool]:
for area in self.app.exc_areas.exclusion_areas_storage:
pt_buf = pt.buffer(self.exc_tools[tool]['tooldia'] / 2.0)
if pt_buf.within(area['shape']) or pt_buf.intersects(area['shape']):
self.app.inform.emit("[ERROR_NOTCL] %s" % _("Failed. Drill points inside the exclusion zones."))
return 'fail'
# this holds the resulting GCode
self.gcode = []
# #############################################################################################################
# #############################################################################################################
# Initialization
# #############################################################################################################
# #############################################################################################################
gcode = ''
start_gcode = ''
if is_first:
start_gcode = self.doformat(p.start_code)
if use_ui is False:
gcode += self.doformat(p.z_feedrate_code)
if self.toolchange is False:
if self.xy_toolchange is not None:
gcode += self.doformat(p.lift_code, x=self.xy_toolchange[0], y=self.xy_toolchange[1])
gcode += self.doformat(p.startz_code, x=self.xy_toolchange[0], y=self.xy_toolchange[1])
else:
gcode += self.doformat(p.lift_code, x=0.0, y=0.0)
gcode += self.doformat(p.startz_code, x=0.0, y=0.0)
if self.xy_toolchange is not None:
self.oldx = self.xy_toolchange[0]
self.oldy = self.xy_toolchange[1]
else:
self.oldx = 0.0
self.oldy = 0.0
measured_distance = 0.0
measured_down_distance = 0.0
measured_up_to_zero_distance = 0.0
measured_lift_distance = 0.0
# #############################################################################################################
# #############################################################################################################
# GCODE creation
# #############################################################################################################
# #############################################################################################################
self.app.inform.emit('%s...' % _("Starting G-Code"))
has_drills = None
for tool, tool_dict in self.exc_tools.items():
if 'drills' in tool_dict and tool_dict['drills']:
has_drills = True
break
if not has_drills:
log.debug("camlib.CNCJob.generate_from_excellon_by_tool() --> "
"The loaded Excellon file has no drills ...")
self.app.inform.emit('[ERROR_NOTCL] %s...' % _('The loaded Excellon file has no drills'))
return 'fail'
current_platform = platform.architecture()[0]
if current_platform == '64bit':
used_excellon_optimization_type = self.excellon_optimization_type
else:
used_excellon_optimization_type = 'T'
# #############################################################################################################
# #############################################################################################################
# ################################## DRILLING !!! #########################################################
# #############################################################################################################
# #############################################################################################################
if used_excellon_optimization_type == 'M':
log.debug("Using OR-Tools Metaheuristic Guided Local Search drill path optimization.")
elif used_excellon_optimization_type == 'B':
log.debug("Using OR-Tools Basic drill path optimization.")
elif used_excellon_optimization_type == 'T':
log.debug("Using Travelling Salesman drill path optimization.")
else:
log.debug("Using no path optimization.")
if self.toolchange is True:
for tool in tools:
# check if it has drills
if not self.exc_tools[tool]['drills']:
continue
if self.app.abort_flag:
# graceful abort requested by the user
raise grace
self.tool = tool
self.tooldia = self.exc_tools[tool]["tooldia"]
self.postdata['toolC'] = self.tooldia
if self.use_ui:
self.z_feedrate = self.exc_tools[tool]['data']['tools_drill_feedrate_z']
self.feedrate = self.exc_tools[tool]['data']['tools_drill_feedrate_z']
self.z_cut = self.exc_tools[tool]['data']['tools_drill_cutz']
gcode += self.doformat(p.z_feedrate_code)
if self.machinist_setting == 0:
if self.z_cut > 0:
self.app.inform.emit('[WARNING] %s' %
_("The Cut Z parameter has positive value. "
"It is the depth value to drill into material.\n"
"The Cut Z parameter needs to have a negative value, "
"assuming it is a typo "
"therefore the app will convert the value to negative. "
"Check the resulting CNC code (Gcode etc)."))
self.z_cut = -self.z_cut
elif self.z_cut == 0:
self.app.inform.emit('[WARNING] %s: %s' %
(_(
"The Cut Z parameter is zero. There will be no cut, "
"skipping file"),
exobj.options['name']))
return 'fail'
old_zcut = deepcopy(self.z_cut)
self.z_move = self.exc_tools[tool]['data']['tools_drill_travelz']
self.spindlespeed = self.exc_tools[tool]['data']['tools_drill_spindlespeed']
self.dwell = self.exc_tools[tool]['data']['tools_drill_dwell']
self.dwelltime = self.exc_tools[tool]['data']['tools_drill_dwelltime']
self.multidepth = self.exc_tools[tool]['data']['tools_drill_multidepth']
self.z_depthpercut = self.exc_tools[tool]['data']['tools_drill_depthperpass']
else:
old_zcut = deepcopy(self.z_cut)
# #########################################################################################################
# ############ Create the data. #################
# #########################################################################################################
locations = []
altPoints = []
optimized_path = []
if used_excellon_optimization_type == 'M':
if tool in points:
locations = self.create_tool_data_array(points=points[tool])
# if there are no locations then go to the next tool
if not locations:
continue
opt_time = self.app.defaults["excellon_search_time"]
optimized_path = self.optimized_ortools_meta(locations=locations, opt_time=opt_time)
elif used_excellon_optimization_type == 'B':
if tool in points:
locations = self.create_tool_data_array(points=points[tool])
# if there are no locations then go to the next tool
if not locations:
continue
optimized_path = self.optimized_ortools_basic(locations=locations)
elif used_excellon_optimization_type == 'T':
for point in points[tool]:
altPoints.append((point.coords.xy[0][0], point.coords.xy[1][0]))
optimized_path = self.optimized_travelling_salesman(altPoints)
else:
# it's actually not optimized path but here we build a list of (x,y) coordinates
# out of the tool's drills
for drill in self.exc_tools[tool]['drills']:
unoptimized_coords = (
drill.x,
drill.y
)
optimized_path.append(unoptimized_coords)
# #########################################################################################################
# #########################################################################################################
# Only if there are locations to drill
if not optimized_path:
continue
if self.app.abort_flag:
# graceful abort requested by the user
raise grace
# Tool change sequence (optional)
if self.toolchange:
gcode += self.doformat(p.toolchange_code, toolchangexy=(self.oldx, self.oldy))
# Spindle start
gcode += self.doformat(p.spindle_code)
# Dwell time
if self.dwell is True:
gcode += self.doformat(p.dwell_code)
current_tooldia = float('%.*f' % (self.decimals, float(self.exc_tools[tool]["tooldia"])))
self.app.inform.emit(
'%s: %s%s.' % (_("Starting G-Code for tool with diameter"),
str(current_tooldia),
str(self.units))
)
# !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
# APPLY Offset only when using the appGUI, for TclCommand this will create an error
# because the values for Z offset are created in build_ui()
# !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
try:
z_offset = float(self.exc_tools[tool]['data']['tools_drill_offset']) * (-1)
except KeyError:
z_offset = 0
self.z_cut = z_offset + old_zcut
self.coordinates_type = self.app.defaults["cncjob_coords_type"]
if self.coordinates_type == "G90":
# Drillling! for Absolute coordinates type G90
# variables to display the percentage of work done
geo_len = len(optimized_path)
old_disp_number = 0
log.warning("Number of drills for which to generate GCode: %s" % str(geo_len))
loc_nr = 0
for point in optimized_path:
if self.app.abort_flag:
# graceful abort requested by the user
raise grace
if used_excellon_optimization_type == 'T':
locx = point[0]
locy = point[1]
else:
locx = locations[point][0]
locy = locations[point][1]
travels = self.app.exc_areas.travel_coordinates(start_point=(self.oldx, self.oldy),
end_point=(locx, locy),
tooldia=current_tooldia)
prev_z = None
for travel in travels:
locx = travel[1][0]
locy = travel[1][1]
if travel[0] is not None:
# move to next point
gcode += self.doformat(p.rapid_code, x=locx, y=locy)
# raise to safe Z (travel[0]) each time because safe Z may be different
self.z_move = travel[0]
gcode += self.doformat(p.lift_code, x=locx, y=locy)
# restore z_move
self.z_move = self.exc_tools[tool]['data']['tools_drill_travelz']
else:
if prev_z is not None:
# move to next point
gcode += self.doformat(p.rapid_code, x=locx, y=locy)
# we assume that previously the z_move was altered therefore raise to
# the travel_z (z_move)
self.z_move = self.exc_tools[tool]['data']['tools_drill_travelz']
gcode += self.doformat(p.lift_code, x=locx, y=locy)
else:
# move to next point
gcode += self.doformat(p.rapid_code, x=locx, y=locy)
# store prev_z
prev_z = travel[0]
# gcode += self.doformat(p.rapid_code, x=locx, y=locy)
if self.multidepth and abs(self.z_cut) > abs(self.z_depthpercut):
doc = deepcopy(self.z_cut)
self.z_cut = 0.0
while abs(self.z_cut) < abs(doc):
self.z_cut -= self.z_depthpercut
if abs(doc) < abs(self.z_cut) < (abs(doc) + self.z_depthpercut):
self.z_cut = doc
gcode += self.doformat(p.down_code, x=locx, y=locy)
measured_down_distance += abs(self.z_cut) + abs(self.z_move)
if self.f_retract is False:
gcode += self.doformat(p.up_to_zero_code, x=locx, y=locy)
measured_up_to_zero_distance += abs(self.z_cut)
measured_lift_distance += abs(self.z_move)
else:
measured_lift_distance += abs(self.z_cut) + abs(self.z_move)
gcode += self.doformat(p.lift_code, x=locx, y=locy)
else:
gcode += self.doformat(p.down_code, x=locx, y=locy)
measured_down_distance += abs(self.z_cut) + abs(self.z_move)
if self.f_retract is False:
gcode += self.doformat(p.up_to_zero_code, x=locx, y=locy)
measured_up_to_zero_distance += abs(self.z_cut)
measured_lift_distance += abs(self.z_move)
else:
measured_lift_distance += abs(self.z_cut) + abs(self.z_move)
gcode += self.doformat(p.lift_code, x=locx, y=locy)
measured_distance += abs(distance_euclidian(locx, locy, self.oldx, self.oldy))
self.oldx = locx
self.oldy = locy
loc_nr += 1
disp_number = int(np.interp(loc_nr, [0, geo_len], [0, 100]))
if old_disp_number < disp_number <= 100:
self.app.proc_container.update_view_text(' %d%%' % disp_number)
old_disp_number = disp_number
else:
self.app.inform.emit('[ERROR_NOTCL] %s...' % _('G91 coordinates not implemented'))
return 'fail'
self.z_cut = deepcopy(old_zcut)
else:
# We are not using Toolchange therefore we need to decide which tool properties to use
one_tool = 1
all_points = []
for tool in points:
# check if it has drills
if not points[tool]:
continue
all_points += points[tool]
if self.app.abort_flag:
# graceful abort requested by the user
raise grace
self.tool = one_tool
self.tooldia = self.exc_tools[one_tool]["tooldia"]
self.postdata['toolC'] = self.tooldia
if self.use_ui:
self.z_feedrate = self.exc_tools[one_tool]['data']['tools_drill_feedrate_z']
self.feedrate = self.exc_tools[one_tool]['data']['tools_drill_feedrate_z']
self.z_cut = self.exc_tools[one_tool]['data']['tools_drill_cutz']
gcode += self.doformat(p.z_feedrate_code)
if self.machinist_setting == 0:
if self.z_cut > 0:
self.app.inform.emit('[WARNING] %s' %
_("The Cut Z parameter has positive value. "
"It is the depth value to drill into material.\n"
"The Cut Z parameter needs to have a negative value, "
"assuming it is a typo "
"therefore the app will convert the value to negative. "
"Check the resulting CNC code (Gcode etc)."))
self.z_cut = -self.z_cut
elif self.z_cut == 0:
self.app.inform.emit('[WARNING] %s: %s' %
(_(
"The Cut Z parameter is zero. There will be no cut, "
"skipping file"),
exobj.options['name']))
return 'fail'
old_zcut = deepcopy(self.z_cut)
self.z_move = self.exc_tools[one_tool]['data']['tools_drill_travelz']
self.spindlespeed = self.exc_tools[one_tool]['data']['tools_drill_spindlespeed']
self.dwell = self.exc_tools[one_tool]['data']['tools_drill_dwell']
self.dwelltime = self.exc_tools[one_tool]['data']['tools_drill_dwelltime']
self.multidepth = self.exc_tools[one_tool]['data']['tools_drill_multidepth']
self.z_depthpercut = self.exc_tools[one_tool]['data']['tools_drill_depthperpass']
else:
old_zcut = deepcopy(self.z_cut)
# #########################################################################################################
# ############ Create the data. #################
# #########################################################################################################
locations = []
altPoints = []
optimized_path = []
if used_excellon_optimization_type == 'M':
if all_points:
locations = self.create_tool_data_array(points=all_points)
# if there are no locations then go to the next tool
if not locations:
return 'fail'
opt_time = self.app.defaults["excellon_search_time"]
optimized_path = self.optimized_ortools_meta(locations=locations, opt_time=opt_time)
elif used_excellon_optimization_type == 'B':
if all_points:
locations = self.create_tool_data_array(points=all_points)
# if there are no locations then go to the next tool
if not locations:
return 'fail'
optimized_path = self.optimized_ortools_basic(locations=locations)
elif used_excellon_optimization_type == 'T':
for point in all_points:
altPoints.append((point.coords.xy[0][0], point.coords.xy[1][0]))
optimized_path = self.optimized_travelling_salesman(altPoints)
else:
# it's actually not optimized path but here we build a list of (x,y) coordinates
# out of the tool's drills
for pt in all_points:
unoptimized_coords = (
pt.x,
pt.y
)
optimized_path.append(unoptimized_coords)
# #########################################################################################################
# #########################################################################################################
# Only if there are locations to drill
if not optimized_path:
return 'fail'
if self.app.abort_flag:
# graceful abort requested by the user
raise grace
# Spindle start
gcode += self.doformat(p.spindle_code)
# Dwell time
if self.dwell is True:
gcode += self.doformat(p.dwell_code)
current_tooldia = float('%.*f' % (self.decimals, float(self.exc_tools[one_tool]["tooldia"])))
self.app.inform.emit(
'%s: %s%s.' % (_("Starting G-Code for tool with diameter"),
str(current_tooldia),
str(self.units))
)
# !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
# APPLY Offset only when using the appGUI, for TclCommand this will create an error
# because the values for Z offset are created in build_ui()
# !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
try:
z_offset = float(self.exc_tools[one_tool]['data']['tools_drill_offset']) * (-1)
except KeyError:
z_offset = 0
self.z_cut = z_offset + old_zcut
self.coordinates_type = self.app.defaults["cncjob_coords_type"]
if self.coordinates_type == "G90":
# Drillling! for Absolute coordinates type G90
# variables to display the percentage of work done
geo_len = len(optimized_path)
old_disp_number = 0
log.warning("Number of drills for which to generate GCode: %s" % str(geo_len))
loc_nr = 0
for point in optimized_path:
if self.app.abort_flag:
# graceful abort requested by the user
raise grace
if used_excellon_optimization_type == 'T':
locx = point[0]
locy = point[1]
else:
locx = locations[point][0]
locy = locations[point][1]
travels = self.app.exc_areas.travel_coordinates(start_point=(self.oldx, self.oldy),
end_point=(locx, locy),
tooldia=current_tooldia)
prev_z = None
for travel in travels:
locx = travel[1][0]
locy = travel[1][1]
if travel[0] is not None:
# move to next point
gcode += self.doformat(p.rapid_code, x=locx, y=locy)
# raise to safe Z (travel[0]) each time because safe Z may be different
self.z_move = travel[0]
gcode += self.doformat(p.lift_code, x=locx, y=locy)
# restore z_move
self.z_move = self.exc_tools[one_tool]['data']['tools_drill_travelz']
else:
if prev_z is not None:
# move to next point
gcode += self.doformat(p.rapid_code, x=locx, y=locy)
# we assume that previously the z_move was altered therefore raise to
# the travel_z (z_move)
self.z_move = self.exc_tools[one_tool]['data']['tools_drill_travelz']
gcode += self.doformat(p.lift_code, x=locx, y=locy)
else:
# move to next point
gcode += self.doformat(p.rapid_code, x=locx, y=locy)
# store prev_z
prev_z = travel[0]
# gcode += self.doformat(p.rapid_code, x=locx, y=locy)
if self.multidepth and abs(self.z_cut) > abs(self.z_depthpercut):
doc = deepcopy(self.z_cut)
self.z_cut = 0.0
while abs(self.z_cut) < abs(doc):
self.z_cut -= self.z_depthpercut
if abs(doc) < abs(self.z_cut) < (abs(doc) + self.z_depthpercut):
self.z_cut = doc
gcode += self.doformat(p.down_code, x=locx, y=locy)
measured_down_distance += abs(self.z_cut) + abs(self.z_move)
if self.f_retract is False:
gcode += self.doformat(p.up_to_zero_code, x=locx, y=locy)
measured_up_to_zero_distance += abs(self.z_cut)
measured_lift_distance += abs(self.z_move)
else:
measured_lift_distance += abs(self.z_cut) + abs(self.z_move)
gcode += self.doformat(p.lift_code, x=locx, y=locy)
else:
gcode += self.doformat(p.down_code, x=locx, y=locy)
measured_down_distance += abs(self.z_cut) + abs(self.z_move)
if self.f_retract is False:
gcode += self.doformat(p.up_to_zero_code, x=locx, y=locy)
measured_up_to_zero_distance += abs(self.z_cut)
measured_lift_distance += abs(self.z_move)
else:
measured_lift_distance += abs(self.z_cut) + abs(self.z_move)
gcode += self.doformat(p.lift_code, x=locx, y=locy)
measured_distance += abs(distance_euclidian(locx, locy, self.oldx, self.oldy))
self.oldx = locx
self.oldy = locy
loc_nr += 1
disp_number = int(np.interp(loc_nr, [0, geo_len], [0, 100]))
if old_disp_number < disp_number <= 100:
self.app.proc_container.update_view_text(' %d%%' % disp_number)
old_disp_number = disp_number
else:
self.app.inform.emit('[ERROR_NOTCL] %s...' % _('G91 coordinates not implemented'))
return 'fail'
self.z_cut = deepcopy(old_zcut)
if used_excellon_optimization_type == 'M':
log.debug("The total travel distance with OR-TOOLS Metaheuristics is: %s" % str(measured_distance))
elif used_excellon_optimization_type == 'B':
log.debug("The total travel distance with OR-TOOLS Basic Algorithm is: %s" % str(measured_distance))
elif used_excellon_optimization_type == 'T':
log.debug("The total travel distance with Travelling Salesman Algorithm is: %s" % str(measured_distance))
else:
log.debug("The total travel distance with with no optimization is: %s" % str(measured_distance))
# if used_excellon_optimization_type == 'M':
# log.debug("Using OR-Tools Metaheuristic Guided Local Search drill path optimization.")
#
# if has_drills:
# for tool in tools:
# if self.app.abort_flag:
# # graceful abort requested by the user
# raise grace
#
# self.tool = tool
# self.tooldia = self.exc_tools[tool]["tooldia"]
# self.postdata['toolC'] = self.tooldia
#
# if self.use_ui:
# self.z_feedrate = self.exc_tools[tool]['data']['feedrate_z']
# self.feedrate = self.exc_tools[tool]['data']['feedrate']
# gcode += self.doformat(p.z_feedrate_code)
# self.z_cut = self.exc_tools[tool]['data']['cutz']
#
# if self.machinist_setting == 0:
# if self.z_cut > 0:
# self.app.inform.emit('[WARNING] %s' %
# _("The Cut Z parameter has positive value. "
# "It is the depth value to drill into material.\n"
# "The Cut Z parameter needs to have a negative value, "
# "assuming it is a typo "
# "therefore the app will convert the value to negative. "
# "Check the resulting CNC code (Gcode etc)."))
# self.z_cut = -self.z_cut
# elif self.z_cut == 0:
# self.app.inform.emit('[WARNING] %s: %s' %
# (_(
# "The Cut Z parameter is zero. There will be no cut, "
# "skipping file"),
# exobj.options['name']))
# return 'fail'
#
# old_zcut = deepcopy(self.z_cut)
#
# self.z_move = self.exc_tools[tool]['data']['travelz']
# self.spindlespeed = self.exc_tools[tool]['data']['spindlespeed']
# self.dwell = self.exc_tools[tool]['data']['dwell']
# self.dwelltime = self.exc_tools[tool]['data']['dwelltime']
# self.multidepth = self.exc_tools[tool]['data']['multidepth']
# self.z_depthpercut = self.exc_tools[tool]['data']['depthperpass']
# else:
# old_zcut = deepcopy(self.z_cut)
#
# # ###############################################
# # ############ Create the data. #################
# # ###############################################
# locations = self.create_tool_data_array(tool=tool, points=points)
# # if there are no locations then go to the next tool
# if not locations:
# continue
# optimized_path = self.optimized_ortools_meta(locations=locations)
#
# # Only if tool has points.
# if tool in points:
# if self.app.abort_flag:
# # graceful abort requested by the user
# raise grace
#
# # Tool change sequence (optional)
# if self.toolchange:
# gcode += self.doformat(p.toolchange_code, toolchangexy=(self.oldx, self.oldy))
# # Spindle start
# gcode += self.doformat(p.spindle_code)
# # Dwell time
# if self.dwell is True:
# gcode += self.doformat(p.dwell_code)
#
# current_tooldia = float('%.*f' % (self.decimals, float(self.exc_tools[tool]["tooldia"])))
#
# self.app.inform.emit(
# '%s: %s%s.' % (_("Starting G-Code for tool with diameter"),
# str(current_tooldia),
# str(self.units))
# )
#
# # !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
# # APPLY Offset only when using the appGUI, for TclCommand this will create an error
# # because the values for Z offset are created in build_ui()
# # !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
# try:
# z_offset = float(self.exc_tools[tool]['data']['offset']) * (-1)
# except KeyError:
# z_offset = 0
# self.z_cut = z_offset + old_zcut
#
# self.coordinates_type = self.app.defaults["cncjob_coords_type"]
# if self.coordinates_type == "G90":
# # Drillling! for Absolute coordinates type G90
# # variables to display the percentage of work done
# geo_len = len(optimized_path)
#
# old_disp_number = 0
# log.warning("Number of drills for which to generate GCode: %s" % str(geo_len))
#
# loc_nr = 0
# for k in optimized_path:
# if self.app.abort_flag:
# # graceful abort requested by the user
# raise grace
#
# locx = locations[k][0]
# locy = locations[k][1]
#
# travels = self.app.exc_areas.travel_coordinates(start_point=(self.oldx, self.oldy),
# end_point=(locx, locy),
# tooldia=current_tooldia)
# prev_z = None
# for travel in travels:
# locx = travel[1][0]
# locy = travel[1][1]
#
# if travel[0] is not None:
# # move to next point
# gcode += self.doformat(p.rapid_code, x=locx, y=locy)
#
# # raise to safe Z (travel[0]) each time because safe Z may be different
# self.z_move = travel[0]
# gcode += self.doformat(p.lift_code, x=locx, y=locy)
#
# # restore z_move
# self.z_move = self.exc_tools[tool]['data']['travelz']
# else:
# if prev_z is not None:
# # move to next point
# gcode += self.doformat(p.rapid_code, x=locx, y=locy)
#
# # we assume that previously the z_move was altered therefore raise to
# # the travel_z (z_move)
# self.z_move = self.exc_tools[tool]['data']['travelz']
# gcode += self.doformat(p.lift_code, x=locx, y=locy)
# else:
# # move to next point
# gcode += self.doformat(p.rapid_code, x=locx, y=locy)
#
# # store prev_z
# prev_z = travel[0]
#
# # gcode += self.doformat(p.rapid_code, x=locx, y=locy)
#
# if self.multidepth and abs(self.z_cut) > abs(self.z_depthpercut):
# doc = deepcopy(self.z_cut)
# self.z_cut = 0.0
#
# while abs(self.z_cut) < abs(doc):
#
# self.z_cut -= self.z_depthpercut
# if abs(doc) < abs(self.z_cut) < (abs(doc) + self.z_depthpercut):
# self.z_cut = doc
# gcode += self.doformat(p.down_code, x=locx, y=locy)
#
# measured_down_distance += abs(self.z_cut) + abs(self.z_move)
#
# if self.f_retract is False:
# gcode += self.doformat(p.up_to_zero_code, x=locx, y=locy)
# measured_up_to_zero_distance += abs(self.z_cut)
# measured_lift_distance += abs(self.z_move)
# else:
# measured_lift_distance += abs(self.z_cut) + abs(self.z_move)
#
# gcode += self.doformat(p.lift_code, x=locx, y=locy)
#
# else:
# gcode += self.doformat(p.down_code, x=locx, y=locy)
#
# measured_down_distance += abs(self.z_cut) + abs(self.z_move)
#
# if self.f_retract is False:
# gcode += self.doformat(p.up_to_zero_code, x=locx, y=locy)
# measured_up_to_zero_distance += abs(self.z_cut)
# measured_lift_distance += abs(self.z_move)
# else:
# measured_lift_distance += abs(self.z_cut) + abs(self.z_move)
#
# gcode += self.doformat(p.lift_code, x=locx, y=locy)
#
# measured_distance += abs(distance_euclidian(locx, locy, self.oldx, self.oldy))
# self.oldx = locx
# self.oldy = locy
#
# loc_nr += 1
# disp_number = int(np.interp(loc_nr, [0, geo_len], [0, 100]))
#
# if old_disp_number < disp_number <= 100:
# self.app.proc_container.update_view_text(' %d%%' % disp_number)
# old_disp_number = disp_number
#
# else:
# self.app.inform.emit('[ERROR_NOTCL] %s...' % _('G91 coordinates not implemented'))
# return 'fail'
# self.z_cut = deepcopy(old_zcut)
# else:
# log.debug("camlib.CNCJob.generate_from_excellon_by_tool() --> "
# "The loaded Excellon file has no drills ...")
# self.app.inform.emit('[ERROR_NOTCL] %s...' % _('The loaded Excellon file has no drills'))
# return 'fail'
#
# log.debug("The total travel distance with OR-TOOLS Metaheuristics is: %s" % str(measured_distance))
#
# elif used_excellon_optimization_type == 'B':
# log.debug("Using OR-Tools Basic drill path optimization.")
#
# if has_drills:
# for tool in tools:
# if self.app.abort_flag:
# # graceful abort requested by the user
# raise grace
#
# self.tool = tool
# self.tooldia = self.exc_tools[tool]["tooldia"]
# self.postdata['toolC'] = self.tooldia
#
# if self.use_ui:
# self.z_feedrate = self.exc_tools[tool]['data']['feedrate_z']
# self.feedrate = self.exc_tools[tool]['data']['feedrate']
# gcode += self.doformat(p.z_feedrate_code)
# self.z_cut = self.exc_tools[tool]['data']['cutz']
#
# if self.machinist_setting == 0:
# if self.z_cut > 0:
# self.app.inform.emit('[WARNING] %s' %
# _("The Cut Z parameter has positive value. "
# "It is the depth value to drill into material.\n"
# "The Cut Z parameter needs to have a negative value, "
# "assuming it is a typo "
# "therefore the app will convert the value to negative. "
# "Check the resulting CNC code (Gcode etc)."))
# self.z_cut = -self.z_cut
# elif self.z_cut == 0:
# self.app.inform.emit('[WARNING] %s: %s' %
# (_(
# "The Cut Z parameter is zero. There will be no cut, "
# "skipping file"),
# exobj.options['name']))
# return 'fail'
#
# old_zcut = deepcopy(self.z_cut)
#
# self.z_move = self.exc_tools[tool]['data']['travelz']
#
# self.spindlespeed = self.exc_tools[tool]['data']['spindlespeed']
# self.dwell = self.exc_tools[tool]['data']['dwell']
# self.dwelltime = self.exc_tools[tool]['data']['dwelltime']
# self.multidepth = self.exc_tools[tool]['data']['multidepth']
# self.z_depthpercut = self.exc_tools[tool]['data']['depthperpass']
# else:
# old_zcut = deepcopy(self.z_cut)
#
# # ###############################################
# # ############ Create the data. #################
# # ###############################################
# locations = self.create_tool_data_array(tool=tool, points=points)
# # if there are no locations then go to the next tool
# if not locations:
# continue
# optimized_path = self.optimized_ortools_basic(locations=locations)
#
# # Only if tool has points.
# if tool in points:
# if self.app.abort_flag:
# # graceful abort requested by the user
# raise grace
#
# # Tool change sequence (optional)
# if self.toolchange:
# gcode += self.doformat(p.toolchange_code, toolchangexy=(self.oldx, self.oldy))
# gcode += self.doformat(p.spindle_code) # Spindle start)
# if self.dwell is True:
# gcode += self.doformat(p.dwell_code) # Dwell time
# else:
# gcode += self.doformat(p.spindle_code)
# if self.dwell is True:
# gcode += self.doformat(p.dwell_code) # Dwell time
#
# current_tooldia = float('%.*f' % (self.decimals, float(self.exc_tools[tool]["tooldia"])))
#
# self.app.inform.emit(
# '%s: %s%s.' % (_("Starting G-Code for tool with diameter"),
# str(current_tooldia),
# str(self.units))
# )
#
# # !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
# # APPLY Offset only when using the appGUI, for TclCommand this will create an error
# # because the values for Z offset are created in build_ui()
# # !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
# try:
# z_offset = float(self.exc_tools[tool]['data']['offset']) * (-1)
# except KeyError:
# z_offset = 0
# self.z_cut = z_offset + old_zcut
#
# self.coordinates_type = self.app.defaults["cncjob_coords_type"]
# if self.coordinates_type == "G90":
# # Drillling! for Absolute coordinates type G90
# # variables to display the percentage of work done
# geo_len = len(optimized_path)
# old_disp_number = 0
# log.warning("Number of drills for which to generate GCode: %s" % str(geo_len))
#
# loc_nr = 0
# for k in optimized_path:
# if self.app.abort_flag:
# # graceful abort requested by the user
# raise grace
#
# locx = locations[k][0]
# locy = locations[k][1]
#
# travels = self.app.exc_areas.travel_coordinates(start_point=(self.oldx, self.oldy),
# end_point=(locx, locy),
# tooldia=current_tooldia)
# prev_z = None
# for travel in travels:
# locx = travel[1][0]
# locy = travel[1][1]
#
# if travel[0] is not None:
# # move to next point
# gcode += self.doformat(p.rapid_code, x=locx, y=locy)
#
# # raise to safe Z (travel[0]) each time because safe Z may be different
# self.z_move = travel[0]
# gcode += self.doformat(p.lift_code, x=locx, y=locy)
#
# # restore z_move
# self.z_move = self.exc_tools[tool]['data']['travelz']
# else:
# if prev_z is not None:
# # move to next point
# gcode += self.doformat(p.rapid_code, x=locx, y=locy)
#
# # we assume that previously the z_move was altered therefore raise to
# # the travel_z (z_move)
# self.z_move = self.exc_tools[tool]['data']['travelz']
# gcode += self.doformat(p.lift_code, x=locx, y=locy)
# else:
# # move to next point
# gcode += self.doformat(p.rapid_code, x=locx, y=locy)
#
# # store prev_z
# prev_z = travel[0]
#
# # gcode += self.doformat(p.rapid_code, x=locx, y=locy)
#
# if self.multidepth and abs(self.z_cut) > abs(self.z_depthpercut):
# doc = deepcopy(self.z_cut)
# self.z_cut = 0.0
#
# while abs(self.z_cut) < abs(doc):
#
# self.z_cut -= self.z_depthpercut
# if abs(doc) < abs(self.z_cut) < (abs(doc) + self.z_depthpercut):
# self.z_cut = doc
# gcode += self.doformat(p.down_code, x=locx, y=locy)
#
# measured_down_distance += abs(self.z_cut) + abs(self.z_move)
#
# if self.f_retract is False:
# gcode += self.doformat(p.up_to_zero_code, x=locx, y=locy)
# measured_up_to_zero_distance += abs(self.z_cut)
# measured_lift_distance += abs(self.z_move)
# else:
# measured_lift_distance += abs(self.z_cut) + abs(self.z_move)
#
# gcode += self.doformat(p.lift_code, x=locx, y=locy)
#
# else:
# gcode += self.doformat(p.down_code, x=locx, y=locy)
#
# measured_down_distance += abs(self.z_cut) + abs(self.z_move)
#
# if self.f_retract is False:
# gcode += self.doformat(p.up_to_zero_code, x=locx, y=locy)
# measured_up_to_zero_distance += abs(self.z_cut)
# measured_lift_distance += abs(self.z_move)
# else:
# measured_lift_distance += abs(self.z_cut) + abs(self.z_move)
#
# gcode += self.doformat(p.lift_code, x=locx, y=locy)
#
# measured_distance += abs(distance_euclidian(locx, locy, self.oldx, self.oldy))
# self.oldx = locx
# self.oldy = locy
#
# loc_nr += 1
# disp_number = int(np.interp(loc_nr, [0, geo_len], [0, 100]))
#
# if old_disp_number < disp_number <= 100:
# self.app.proc_container.update_view_text(' %d%%' % disp_number)
# old_disp_number = disp_number
#
# else:
# self.app.inform.emit('[ERROR_NOTCL] %s...' % _('G91 coordinates not implemented'))
# return 'fail'
# self.z_cut = deepcopy(old_zcut)
# else:
# log.debug("camlib.CNCJob.generate_from_excellon_by_tool() --> "
# "The loaded Excellon file has no drills ...")
# self.app.inform.emit('[ERROR_NOTCL] %s...' % _('The loaded Excellon file has no drills'))
# return 'fail'
#
# log.debug("The total travel distance with OR-TOOLS Basic Algorithm is: %s" % str(measured_distance))
#
# elif used_excellon_optimization_type == 'T':
# log.debug("Using Travelling Salesman drill path optimization.")
#
# for tool in tools:
# if self.app.abort_flag:
# # graceful abort requested by the user
# raise grace
#
# if has_drills:
# self.tool = tool
# self.tooldia = self.exc_tools[tool]["tooldia"]
# self.postdata['toolC'] = self.tooldia
#
# if self.use_ui:
# self.z_feedrate = self.exc_tools[tool]['data']['feedrate_z']
# self.feedrate = self.exc_tools[tool]['data']['feedrate']
# gcode += self.doformat(p.z_feedrate_code)
#
# self.z_cut = self.exc_tools[tool]['data']['cutz']
#
# if self.machinist_setting == 0:
# if self.z_cut > 0:
# self.app.inform.emit('[WARNING] %s' %
# _("The Cut Z parameter has positive value. "
# "It is the depth value to drill into material.\n"
# "The Cut Z parameter needs to have a negative value, "
# "assuming it is a typo "
# "therefore the app will convert the value to negative. "
# "Check the resulting CNC code (Gcode etc)."))
# self.z_cut = -self.z_cut
# elif self.z_cut == 0:
# self.app.inform.emit('[WARNING] %s: %s' %
# (_(
# "The Cut Z parameter is zero. There will be no cut, "
# "skipping file"),
# exobj.options['name']))
# return 'fail'
#
# old_zcut = deepcopy(self.z_cut)
#
# self.z_move = self.exc_tools[tool]['data']['travelz']
# self.spindlespeed = self.exc_tools[tool]['data']['spindlespeed']
# self.dwell = self.exc_tools[tool]['data']['dwell']
# self.dwelltime = self.exc_tools[tool]['data']['dwelltime']
# self.multidepth = self.exc_tools[tool]['data']['multidepth']
# self.z_depthpercut = self.exc_tools[tool]['data']['depthperpass']
# else:
# old_zcut = deepcopy(self.z_cut)
#
# # ###############################################
# # ############ Create the data. #################
# # ###############################################
# altPoints = []
# for point in points[tool]:
# altPoints.append((point.coords.xy[0][0], point.coords.xy[1][0]))
# optimized_path = self.optimized_travelling_salesman(altPoints)
#
# # Only if tool has points.
# if tool in points:
# if self.app.abort_flag:
# # graceful abort requested by the user
# raise grace
#
# # Tool change sequence (optional)
# if self.toolchange:
# gcode += self.doformat(p.toolchange_code, toolchangexy=(self.oldx, self.oldy))
# gcode += self.doformat(p.spindle_code) # Spindle start)
# if self.dwell is True:
# gcode += self.doformat(p.dwell_code) # Dwell time
# else:
# gcode += self.doformat(p.spindle_code)
# if self.dwell is True:
# gcode += self.doformat(p.dwell_code) # Dwell time
#
# current_tooldia = float('%.*f' % (self.decimals, float(self.exc_tools[tool]["tooldia"])))
#
# self.app.inform.emit(
# '%s: %s%s.' % (_("Starting G-Code for tool with diameter"),
# str(current_tooldia),
# str(self.units))
# )
#
# # !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
# # APPLY Offset only when using the appGUI, for TclCommand this will create an error
# # because the values for Z offset are created in build_ui()
# # !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
# try:
# z_offset = float(self.exc_tools[tool]['data']['offset']) * (-1)
# except KeyError:
# z_offset = 0
# self.z_cut = z_offset + old_zcut
#
# self.coordinates_type = self.app.defaults["cncjob_coords_type"]
# if self.coordinates_type == "G90":
# # Drillling! for Absolute coordinates type G90
# # variables to display the percentage of work done
# geo_len = len(optimized_path)
# old_disp_number = 0
# log.warning("Number of drills for which to generate GCode: %s" % str(geo_len))
#
# loc_nr = 0
# for point in optimized_path:
# if self.app.abort_flag:
# # graceful abort requested by the user
# raise grace
#
# locx = point[0]
# locy = point[1]
#
# travels = self.app.exc_areas.travel_coordinates(start_point=(self.oldx, self.oldy),
# end_point=(locx, locy),
# tooldia=current_tooldia)
# prev_z = None
# for travel in travels:
# locx = travel[1][0]
# locy = travel[1][1]
#
# if travel[0] is not None:
# # move to next point
# gcode += self.doformat(p.rapid_code, x=locx, y=locy)
#
# # raise to safe Z (travel[0]) each time because safe Z may be different
# self.z_move = travel[0]
# gcode += self.doformat(p.lift_code, x=locx, y=locy)
#
# # restore z_move
# self.z_move = self.exc_tools[tool]['data']['travelz']
# else:
# if prev_z is not None:
# # move to next point
# gcode += self.doformat(p.rapid_code, x=locx, y=locy)
#
# # we assume that previously the z_move was altered therefore raise to
# # the travel_z (z_move)
# self.z_move = self.exc_tools[tool]['data']['travelz']
# gcode += self.doformat(p.lift_code, x=locx, y=locy)
# else:
# # move to next point
# gcode += self.doformat(p.rapid_code, x=locx, y=locy)
#
# # store prev_z
# prev_z = travel[0]
#
# # gcode += self.doformat(p.rapid_code, x=locx, y=locy)
#
# if self.multidepth and abs(self.z_cut) > abs(self.z_depthpercut):
# doc = deepcopy(self.z_cut)
# self.z_cut = 0.0
#
# while abs(self.z_cut) < abs(doc):
#
# self.z_cut -= self.z_depthpercut
# if abs(doc) < abs(self.z_cut) < (abs(doc) + self.z_depthpercut):
# self.z_cut = doc
# gcode += self.doformat(p.down_code, x=locx, y=locy)
#
# measured_down_distance += abs(self.z_cut) + abs(self.z_move)
#
# if self.f_retract is False:
# gcode += self.doformat(p.up_to_zero_code, x=locx, y=locy)
# measured_up_to_zero_distance += abs(self.z_cut)
# measured_lift_distance += abs(self.z_move)
# else:
# measured_lift_distance += abs(self.z_cut) + abs(self.z_move)
#
# gcode += self.doformat(p.lift_code, x=locx, y=locy)
#
# else:
# gcode += self.doformat(p.down_code, x=locx, y=locy)
#
# measured_down_distance += abs(self.z_cut) + abs(self.z_move)
#
# if self.f_retract is False:
# gcode += self.doformat(p.up_to_zero_code, x=locx, y=locy)
# measured_up_to_zero_distance += abs(self.z_cut)
# measured_lift_distance += abs(self.z_move)
# else:
# measured_lift_distance += abs(self.z_cut) + abs(self.z_move)
#
# gcode += self.doformat(p.lift_code, x=locx, y=locy)
#
# measured_distance += abs(distance_euclidian(locx, locy, self.oldx, self.oldy))
# self.oldx = locx
# self.oldy = locy
#
# loc_nr += 1
# disp_number = int(np.interp(loc_nr, [0, geo_len], [0, 100]))
#
# if old_disp_number < disp_number <= 100:
# self.app.proc_container.update_view_text(' %d%%' % disp_number)
# old_disp_number = disp_number
# else:
# self.app.inform.emit('[ERROR_NOTCL] %s...' % _('G91 coordinates not implemented'))
# return 'fail'
# else:
# log.debug("camlib.CNCJob.generate_from_excellon_by_tool() --> "
# "The loaded Excellon file has no drills ...")
# self.app.inform.emit('[ERROR_NOTCL] %s...' % _('The loaded Excellon file has no drills'))
# return 'fail'
# self.z_cut = deepcopy(old_zcut)
# log.debug("The total travel distance with Travelling Salesman Algorithm is: %s" % str(measured_distance))
#
# else:
# log.debug("camlib.CNCJob.generate_from_excellon_by_tool(): Chosen drill optimization doesn't exist.")
# return 'fail'
# Spindle stop
gcode += self.doformat(p.spindle_stop_code)
# Move to End position
gcode += self.doformat(p.end_code, x=0, y=0)
# #############################################################################################################
# ############################# Calculate DISTANCE and ESTIMATED TIME #########################################
# #############################################################################################################
measured_distance += abs(distance_euclidian(self.oldx, self.oldy, 0, 0))
log.debug("The total travel distance including travel to end position is: %s" %
str(measured_distance) + '\n')
self.travel_distance = measured_distance
# I use the value of self.feedrate_rapid for the feadrate in case of the measure_lift_distance and for
# traveled_time because it is not always possible to determine the feedrate that the CNC machine uses
# for G0 move (the fastest speed available to the CNC router). Although self.feedrate_rapids is used only with
# Marlin preprocessor and derivatives.
self.routing_time = (measured_down_distance + measured_up_to_zero_distance) / self.feedrate
lift_time = measured_lift_distance / self.feedrate_rapid
traveled_time = measured_distance / self.feedrate_rapid
self.routing_time += lift_time + traveled_time
# #############################################################################################################
# ############################# Store the GCODE for further usage ############################################
# #############################################################################################################
self.gcode = gcode
self.app.inform.emit('%s ...' % _("Finished G-Code generation"))
return gcode, start_gcode
# no longer used
def generate_from_multitool_geometry(self, geometry, append=True, tooldia=None, offset=0.0, tolerance=0, z_cut=1.0,
z_move=2.0, feedrate=2.0, feedrate_z=2.0, feedrate_rapid=30,
spindlespeed=None, spindledir='CW', dwell=False, dwelltime=1.0,
multidepth=False, depthpercut=None, toolchange=False, toolchangez=1.0,
toolchangexy="0.0, 0.0", extracut=False, extracut_length=0.2,
startz=None, endz=2.0, endxy='', pp_geometry_name=None, tool_no=1):
"""
Algorithm to generate from multitool Geometry.
Algorithm description:
----------------------
Uses RTree to find the nearest path to follow.
:param geometry:
:param append:
:param tooldia:
:param offset:
:param tolerance:
:param z_cut:
:param z_move:
:param feedrate:
:param feedrate_z:
:param feedrate_rapid:
:param spindlespeed:
:param spindledir: Direction of rotation for the spindle. If using GRBL laser mode will
adjust the laser mode
:param dwell:
:param dwelltime:
:param multidepth: If True, use multiple passes to reach the desired depth.
:param depthpercut: Maximum depth in each pass.
:param toolchange:
:param toolchangez:
:param toolchangexy:
:param extracut: Adds (or not) an extra cut at the end of each path overlapping the
first point in path to ensure complete copper removal
:param extracut_length: Extra cut legth at the end of the path
:param startz:
:param endz:
:param endxy:
:param pp_geometry_name:
:param tool_no:
:return: GCode - string
"""
log.debug("generate_from_multitool_geometry()")
temp_solid_geometry = []
if offset != 0.0:
for it in geometry:
# if the geometry is a closed shape then create a Polygon out of it
if isinstance(it, LineString):
c = it.coords
if c[0] == c[-1]:
it = Polygon(it)
temp_solid_geometry.append(it.buffer(offset, join_style=2))
else:
temp_solid_geometry = geometry
# ## Flatten the geometry. Only linear elements (no polygons) remain.
flat_geometry = self.flatten(temp_solid_geometry, pathonly=True)
log.debug("%d paths" % len(flat_geometry))
try:
self.tooldia = float(tooldia)
except Exception as e:
self.app.inform.emit('[ERROR] %s\n%s' % (_("Failed."), str(e)))
return 'fail'
self.z_cut = float(z_cut) if z_cut else None
self.z_move = float(z_move) if z_move is not None else None
self.feedrate = float(feedrate) if feedrate else self.app.defaults["geometry_feedrate"]
self.z_feedrate = float(feedrate_z) if feedrate_z is not None else self.app.defaults["geometry_feedrate_z"]
self.feedrate_rapid = float(feedrate_rapid) if feedrate_rapid else self.app.defaults["geometry_feedrate_rapid"]
self.spindlespeed = int(spindlespeed) if spindlespeed != 0 else None
self.spindledir = spindledir
self.dwell = dwell
self.dwelltime = float(dwelltime) if dwelltime else self.app.defaults["geometry_dwelltime"]
self.startz = float(startz) if startz is not None else self.app.defaults["geometry_startz"]
self.z_end = float(endz) if endz is not None else self.app.defaults["geometry_endz"]
self.xy_end = re.sub('[()\[\]]', '', str(endxy)) if endxy else self.app.defaults["geometry_endxy"]
if self.xy_end and self.xy_end != '':
self.xy_end = [float(eval(a)) for a in self.xy_end.split(",")]
if self.xy_end and len(self.xy_end) < 2:
self.app.inform.emit('[ERROR] %s' % _("The End Move X,Y field in Edit -> Preferences has to be "
"in the format (x, y) but now there is only one value, not two."))
return 'fail'
self.z_depthpercut = float(depthpercut) if depthpercut else self.app.defaults["geometry_depthperpass"]
self.multidepth = multidepth
self.z_toolchange = float(toolchangez) if toolchangez is not None else self.app.defaults["geometry_toolchangez"]
# it servers in the preprocessor file
self.tool = tool_no
try:
if toolchangexy == '':
self.xy_toolchange = None
else:
self.xy_toolchange = re.sub('[()\[\]]', '', str(toolchangexy)) \
if toolchangexy else self.app.defaults["geometry_toolchangexy"]
if self.xy_toolchange and self.xy_toolchange != '':
self.xy_toolchange = [float(eval(a)) for a in self.xy_toolchange.split(",")]
if len(self.xy_toolchange) < 2:
self.app.inform.emit('[ERROR] %s' % _("The Toolchange X,Y field in Edit -> Preferences has to be "
"in the format (x, y) \n"
"but now there is only one value, not two."))
return 'fail'
except Exception as e:
log.debug("camlib.CNCJob.generate_from_multitool_geometry() --> %s" % str(e))
pass
self.pp_geometry_name = pp_geometry_name if pp_geometry_name else 'default'
self.f_plunge = self.app.defaults["geometry_f_plunge"]
if self.z_cut is None:
if 'laser' not in self.pp_geometry_name:
self.app.inform.emit(
'[ERROR_NOTCL] %s' % _("Cut_Z parameter is None or zero. Most likely a bad combinations of "
"other parameters."))
return 'fail'
else:
self.z_cut = 0
if self.machinist_setting == 0:
if self.z_cut > 0:
self.app.inform.emit('[WARNING] %s' %
_("The Cut Z parameter has positive value. "
"It is the depth value to cut into material.\n"
"The Cut Z parameter needs to have a negative value, assuming it is a typo "
"therefore the app will convert the value to negative."
"Check the resulting CNC code (Gcode etc)."))
self.z_cut = -self.z_cut
elif self.z_cut == 0 and 'laser' not in self.pp_geometry_name:
self.app.inform.emit('[WARNING] %s: %s' %
(_("The Cut Z parameter is zero. There will be no cut, skipping file"),
self.options['name']))
return 'fail'
if self.z_move is None:
self.app.inform.emit('[ERROR_NOTCL] %s' % _("Travel Z parameter is None or zero."))
return 'fail'
if self.z_move < 0:
self.app.inform.emit('[WARNING] %s' %
_("The Travel Z parameter has negative value. "
"It is the height value to travel between cuts.\n"
"The Z Travel parameter needs to have a positive value, assuming it is a typo "
"therefore the app will convert the value to positive."
"Check the resulting CNC code (Gcode etc)."))
self.z_move = -self.z_move
elif self.z_move == 0:
self.app.inform.emit('[WARNING] %s: %s' %
(_("The Z Travel parameter is zero. This is dangerous, skipping file"),
self.options['name']))
return 'fail'
# made sure that depth_per_cut is no more then the z_cut
if abs(self.z_cut) < self.z_depthpercut:
self.z_depthpercut = abs(self.z_cut)
# ## Index first and last points in paths
# What points to index.
def get_pts(o):
return [o.coords[0], o.coords[-1]]
# Create the indexed storage.
storage = FlatCAMRTreeStorage()
storage.get_points = get_pts
# Store the geometry
log.debug("Indexing geometry before generating G-Code...")
self.app.inform.emit(_("Indexing geometry before generating G-Code..."))
for geo_shape in flat_geometry:
if self.app.abort_flag:
# graceful abort requested by the user
raise grace
if geo_shape is not None:
storage.insert(geo_shape)
# self.input_geometry_bounds = geometry.bounds()
if not append:
self.gcode = ""
# tell preprocessor the number of tool (for toolchange)
self.tool = tool_no
# this is the tool diameter, it is used as such to accommodate the preprocessor who need the tool diameter
# given under the name 'toolC'
self.postdata['toolC'] = self.tooldia
# Initial G-Code
self.pp_geometry = self.app.preprocessors[self.pp_geometry_name]
p = self.pp_geometry
self.gcode = self.doformat(p.start_code)
self.gcode += self.doformat(p.feedrate_code) # sets the feed rate
if toolchange is False:
self.gcode += self.doformat(p.lift_code, x=0, y=0) # Move (up) to travel height
self.gcode += self.doformat(p.startz_code, x=0, y=0)
if toolchange:
# if "line_xyz" in self.pp_geometry_name:
# self.gcode += self.doformat(p.toolchange_code, x=self.xy_toolchange[0], y=self.xy_toolchange[1])
# else:
# self.gcode += self.doformat(p.toolchange_code)
self.gcode += self.doformat(p.toolchange_code)
if 'laser' not in self.pp_geometry_name:
self.gcode += self.doformat(p.spindle_code) # Spindle start
else:
# for laser this will disable the laser
self.gcode += self.doformat(p.lift_code, x=self.oldx, y=self.oldy) # Move (up) to travel height
if self.dwell is True:
self.gcode += self.doformat(p.dwell_code) # Dwell time
else:
if 'laser' not in self.pp_geometry_name:
self.gcode += self.doformat(p.spindle_code) # Spindle start
if self.dwell is True:
self.gcode += self.doformat(p.dwell_code) # Dwell time
total_travel = 0.0
total_cut = 0.0
# ## Iterate over geometry paths getting the nearest each time.
log.debug("Starting G-Code...")
self.app.inform.emit('%s...' % _("Starting G-Code"))
path_count = 0
current_pt = (0, 0)
# variables to display the percentage of work done
geo_len = len(flat_geometry)
old_disp_number = 0
log.warning("Number of paths for which to generate GCode: %s" % str(geo_len))
current_tooldia = float('%.*f' % (self.decimals, float(self.tooldia)))
self.app.inform.emit('%s: %s%s.' % (_("Starting G-Code for tool with diameter"),
str(current_tooldia),
str(self.units)))
pt, geo = storage.nearest(current_pt)
try:
while True:
if self.app.abort_flag:
# graceful abort requested by the user
raise grace
path_count += 1
# Remove before modifying, otherwise deletion will fail.
storage.remove(geo)
# If last point in geometry is the nearest but prefer the first one if last point == first point
# then reverse coordinates.
if pt != geo.coords[0] and pt == geo.coords[-1]:
# geo.coords = list(geo.coords)[::-1] # Shapley 2.0
geo = LineString(list(geo.coords)[::-1])
# ---------- Single depth/pass --------
if not multidepth:
# calculate the cut distance
total_cut = total_cut + geo.length
self.gcode += self.create_gcode_single_pass(geo, current_tooldia, extracut, extracut_length,
tolerance, z_move=z_move, old_point=current_pt)
# --------- Multi-pass ---------
else:
# calculate the cut distance
# due of the number of cuts (multi depth) it has to multiplied by the number of cuts
nr_cuts = 0
depth = abs(self.z_cut)
while depth > 0:
nr_cuts += 1
depth -= float(self.z_depthpercut)
total_cut += (geo.length * nr_cuts)
gc, geo = self.create_gcode_multi_pass(geo, current_tooldia, extracut, extracut_length,
tolerance, z_move=z_move, postproc=p,
old_point=current_pt)
self.gcode += gc
# calculate the total distance
total_travel = total_travel + abs(distance(pt1=current_pt, pt2=pt))
current_pt = geo.coords[-1]
pt, geo = storage.nearest(current_pt) # Next
disp_number = int(np.interp(path_count, [0, geo_len], [0, 100]))
if old_disp_number < disp_number <= 100:
self.app.proc_container.update_view_text(' %d%%' % disp_number)
old_disp_number = disp_number
except StopIteration: # Nothing found in storage.
pass
log.debug("Finished G-Code... %s paths traced." % path_count)
# add move to end position
total_travel += abs(distance_euclidian(current_pt[0], current_pt[1], 0, 0))
self.travel_distance += total_travel + total_cut
self.routing_time += total_cut / self.feedrate
# Finish
self.gcode += self.doformat(p.spindle_stop_code)
self.gcode += self.doformat(p.lift_code, x=current_pt[0], y=current_pt[1])
self.gcode += self.doformat(p.end_code, x=0, y=0)
self.app.inform.emit(
'%s... %s %s.' % (_("Finished G-Code generation"), str(path_count), _("paths traced"))
)
return self.gcode
def generate_from_geometry_2(self, geometry, append=True, tooldia=None, offset=0.0, tolerance=0, z_cut=None,
z_move=None, feedrate=None, feedrate_z=None, feedrate_rapid=None, spindlespeed=None,
spindledir='CW', dwell=False, dwelltime=None, multidepth=False, depthpercut=None,
toolchange=False, toolchangez=None, toolchangexy="0.0, 0.0", extracut=False,
extracut_length=None, startz=None, endz=None, endxy='', pp_geometry_name=None,
tool_no=1, is_first=False):
"""
Second algorithm to generate from Geometry.
Algorithm description:
----------------------
Uses RTree to find the nearest path to follow.
:param geometry:
:param append:
:param tooldia:
:param offset:
:param tolerance:
:param z_cut:
:param z_move:
:param feedrate:
:param feedrate_z:
:param feedrate_rapid:
:param spindlespeed:
:param spindledir:
:param dwell:
:param dwelltime:
:param multidepth: If True, use multiple passes to reach the desired depth.
:param depthpercut: Maximum depth in each pass.
:param toolchange:
:param toolchangez:
:param toolchangexy:
:param extracut: Adds (or not) an extra cut at the end of each path overlapping the first point in
path to ensure complete copper removal
:param extracut_length: The extra cut length
:param startz:
:param endz:
:param endxy:
:param pp_geometry_name:
:param tool_no:
:param is_first: if the processed tool is the first one and if we should process the start gcode
:return: None
"""
log.debug("Executing camlib.CNCJob.generate_from_geometry_2()")
# if solid_geometry is empty raise an exception
if not geometry.solid_geometry:
self.app.inform.emit(
'[ERROR_NOTCL] %s' % _("Trying to generate a CNC Job from a Geometry object without solid_geometry.")
)
return 'fail'
def bounds_rec(obj):
if type(obj) is list:
minx = np.Inf
miny = np.Inf
maxx = -np.Inf
maxy = -np.Inf
for k in obj:
if type(k) is dict:
for key in k:
minx_, miny_, maxx_, maxy_ = bounds_rec(k[key])
minx = min(minx, minx_)
miny = min(miny, miny_)
maxx = max(maxx, maxx_)
maxy = max(maxy, maxy_)
else:
minx_, miny_, maxx_, maxy_ = bounds_rec(k)
minx = min(minx, minx_)
miny = min(miny, miny_)
maxx = max(maxx, maxx_)
maxy = max(maxy, maxy_)
return minx, miny, maxx, maxy
else:
# it's a Shapely object, return it's bounds
return obj.bounds
# Create the solid geometry which will be used to generate GCode
temp_solid_geometry = []
if offset != 0.0:
offset_for_use = offset
if offset < 0:
a, b, c, d = bounds_rec(geometry.solid_geometry)
# if the offset is less than half of the total length or less than half of the total width of the
# solid geometry it's obvious we can't do the offset
if -offset > ((c - a) / 2) or -offset > ((d - b) / 2):
self.app.inform.emit(
'[ERROR_NOTCL] %s' %
_("The Tool Offset value is too negative to use for the current_geometry.\n"
"Raise the value (in module) and try again.")
)
return 'fail'
# hack: make offset smaller by 0.0000000001 which is insignificant difference but allow the job
# to continue
elif -offset == ((c - a) / 2) or -offset == ((d - b) / 2):
offset_for_use = offset - 0.0000000001
for it in geometry.solid_geometry:
# if the geometry is a closed shape then create a Polygon out of it
if isinstance(it, LineString):
c = it.coords
if c[0] == c[-1]:
it = Polygon(it)
temp_solid_geometry.append(it.buffer(offset_for_use, join_style=2))
else:
temp_solid_geometry = geometry.solid_geometry
# ## Flatten the geometry. Only linear elements (no polygons) remain.
flat_geometry = self.flatten(temp_solid_geometry, pathonly=True)
log.debug("%d paths" % len(flat_geometry))
default_dia = None
if isinstance(self.app.defaults["geometry_cnctooldia"], float):
default_dia = self.app.defaults["geometry_cnctooldia"]
else:
try:
tools_string = self.app.defaults["geometry_cnctooldia"].split(",")
tools_diameters = [eval(a) for a in tools_string if a != '']
default_dia = tools_diameters[0] if tools_diameters else 0.0
except Exception as e:
self.app.log.debug("camlib.CNCJob.generate_from_geometry_2() --> %s" % str(e))
try:
self.tooldia = float(tooldia) if tooldia else default_dia
except ValueError:
self.tooldia = [float(el) for el in tooldia.split(',') if el != ''] if tooldia is not None else default_dia
if self.tooldia is None:
self.app.inform.emit('[ERROR] %s' % _("Failed."))
return 'fail'
self.z_cut = float(z_cut) if z_cut is not None else self.app.defaults["geometry_cutz"]
self.z_move = float(z_move) if z_move is not None else self.app.defaults["geometry_travelz"]
self.feedrate = float(feedrate) if feedrate is not None else self.app.defaults["geometry_feedrate"]
self.z_feedrate = float(feedrate_z) if feedrate_z is not None else self.app.defaults["geometry_feedrate_z"]
self.feedrate_rapid = float(feedrate_rapid) if feedrate_rapid is not None else \
self.app.defaults["geometry_feedrate_rapid"]
self.spindlespeed = int(spindlespeed) if spindlespeed != 0 and spindlespeed is not None else None
self.spindledir = spindledir
self.dwell = dwell
self.dwelltime = float(dwelltime) if dwelltime is not None else self.app.defaults["geometry_dwelltime"]
self.startz = float(startz) if startz is not None and startz != '' else self.app.defaults["geometry_startz"]
self.z_end = float(endz) if endz is not None else self.app.defaults["geometry_endz"]
self.xy_end = endxy if endxy != '' and endxy else self.app.defaults["geometry_endxy"]
self.xy_end = re.sub('[()\[\]]', '', str(self.xy_end)) if self.xy_end else None
if self.xy_end is not None and self.xy_end != '':
self.xy_end = [float(eval(a)) for a in self.xy_end.split(",")]
if self.xy_end and len(self.xy_end) < 2:
self.app.inform.emit('[ERROR] %s' % _("The End Move X,Y field in Edit -> Preferences has to be "
"in the format (x, y) but now there is only one value, not two."))
return 'fail'
self.z_depthpercut = float(depthpercut) if depthpercut is not None and depthpercut != 0 else abs(self.z_cut)
self.multidepth = multidepth
self.z_toolchange = float(toolchangez) if toolchangez is not None else self.app.defaults["geometry_toolchangez"]
self.extracut_length = float(extracut_length) if extracut_length is not None else \
self.app.defaults["geometry_extracut_length"]
try:
if toolchangexy == '':
self.xy_toolchange = None
else:
self.xy_toolchange = re.sub('[()\[\]]', '', str(toolchangexy)) if self.xy_toolchange else None
if self.xy_toolchange and self.xy_toolchange != '':
self.xy_toolchange = [float(eval(a)) for a in self.xy_toolchange.split(",")]
if len(self.xy_toolchange) < 2:
self.app.inform.emit('[ERROR] %s' % _("The Toolchange X,Y format has to be (x, y)."))
return 'fail'
except Exception as e:
log.debug("camlib.CNCJob.generate_from_geometry_2() --> %s" % str(e))
pass
self.pp_geometry_name = pp_geometry_name if pp_geometry_name else 'default'
self.f_plunge = self.app.defaults["geometry_f_plunge"]
if self.machinist_setting == 0:
if self.z_cut is None:
if 'laser' not in self.pp_geometry_name:
self.app.inform.emit(
'[ERROR_NOTCL] %s' % _("Cut_Z parameter is None or zero. Most likely a bad combinations of "
"other parameters.")
)
return 'fail'
else:
self.z_cut = 0.0
if self.z_cut > 0:
self.app.inform.emit('[WARNING] %s' %
_("The Cut Z parameter has positive value. "
"It is the depth value to cut into material.\n"
"The Cut Z parameter needs to have a negative value, assuming it is a typo "
"therefore the app will convert the value to negative."
"Check the resulting CNC code (Gcode etc)."))
self.z_cut = -self.z_cut
elif self.z_cut == 0 and 'laser' not in self.pp_geometry_name:
self.app.inform.emit(
'[WARNING] %s: %s' % (_("The Cut Z parameter is zero. There will be no cut, skipping file"),
geometry.options['name'])
)
return 'fail'
if self.z_move is None:
self.app.inform.emit('[ERROR_NOTCL] %s' % _("Travel Z parameter is None or zero."))
return 'fail'
if self.z_move < 0:
self.app.inform.emit('[WARNING] %s' %
_("The Travel Z parameter has negative value. "
"It is the height value to travel between cuts.\n"
"The Z Travel parameter needs to have a positive value, assuming it is a typo "
"therefore the app will convert the value to positive."
"Check the resulting CNC code (Gcode etc)."))
self.z_move = -self.z_move
elif self.z_move == 0:
self.app.inform.emit(
'[WARNING] %s: %s' % (_("The Z Travel parameter is zero. This is dangerous, skipping file"),
self.options['name'])
)
return 'fail'
# made sure that depth_per_cut is no more then the z_cut
try:
if abs(self.z_cut) < self.z_depthpercut:
self.z_depthpercut = abs(self.z_cut)
except TypeError:
self.z_depthpercut = abs(self.z_cut)
# ## Index first and last points in paths
# What points to index.
def get_pts(o):
return [o.coords[0], o.coords[-1]]
# Create the indexed storage.
storage = FlatCAMRTreeStorage()
storage.get_points = get_pts
# Store the geometry
log.debug("Indexing geometry before generating G-Code...")
self.app.inform.emit(_("Indexing geometry before generating G-Code..."))
for geo_shape in flat_geometry:
if self.app.abort_flag:
# graceful abort requested by the user
raise grace
if geo_shape is not None:
storage.insert(geo_shape)
if not append:
self.gcode = ""
# tell preprocessor the number of tool (for toolchange)
self.tool = tool_no
# this is the tool diameter, it is used as such to accommodate the preprocessor who need the tool diameter
# given under the name 'toolC'
# this is a fancy way of adding a class attribute (which should be added in the __init__ method) without doing
# it there :)
self.postdata['toolC'] = self.tooldia
# Initial G-Code
self.pp_geometry = self.app.preprocessors[self.pp_geometry_name]
# the 'p' local attribute is a reference to the current preprocessor class
p = self.pp_geometry
self.oldx = 0.0
self.oldy = 0.0
start_gcode = ''
if is_first:
start_gcode = self.doformat(p.start_code)
# self.gcode = self.doformat(p.start_code)
self.gcode += self.doformat(p.feedrate_code) # sets the feed rate
if toolchange is False:
# all the x and y parameters in self.doformat() are used only by some preprocessors not by all
self.gcode += self.doformat(p.lift_code, x=self.oldx, y=self.oldy) # Move (up) to travel height
self.gcode += self.doformat(p.startz_code, x=self.oldx, y=self.oldy)
if toolchange:
# if "line_xyz" in self.pp_geometry_name:
# self.gcode += self.doformat(p.toolchange_code, x=self.xy_toolchange[0], y=self.xy_toolchange[1])
# else:
# self.gcode += self.doformat(p.toolchange_code)
self.gcode += self.doformat(p.toolchange_code)
if 'laser' not in self.pp_geometry_name:
self.gcode += self.doformat(p.spindle_code) # Spindle start
else:
# for laser this will disable the laser
self.gcode += self.doformat(p.lift_code, x=self.oldx, y=self.oldy) # Move (up) to travel height
if self.dwell is True:
self.gcode += self.doformat(p.dwell_code) # Dwell time
else:
if 'laser' not in self.pp_geometry_name:
self.gcode += self.doformat(p.spindle_code) # Spindle start
if self.dwell is True:
self.gcode += self.doformat(p.dwell_code) # Dwell time
total_travel = 0.0
total_cut = 0.0
# Iterate over geometry paths getting the nearest each time.
log.debug("Starting G-Code...")
self.app.inform.emit('%s...' % _("Starting G-Code"))
# variables to display the percentage of work done
geo_len = len(flat_geometry)
old_disp_number = 0
log.warning("Number of paths for which to generate GCode: %s" % str(geo_len))
current_tooldia = float('%.*f' % (self.decimals, float(self.tooldia)))
self.app.inform.emit(
'%s: %s%s.' % (_("Starting G-Code for tool with diameter"), str(current_tooldia), str(self.units))
)
path_count = 0
current_pt = (0, 0)
pt, geo = storage.nearest(current_pt)
# when nothing is left in the storage a StopIteration exception will be raised therefore stopping
# the whole process including the infinite loop while True below.
try:
while True:
if self.app.abort_flag:
# graceful abort requested by the user
raise grace
path_count += 1
# Remove before modifying, otherwise deletion will fail.
storage.remove(geo)
# If last point in geometry is the nearest but prefer the first one if last point == first point
# then reverse coordinates.
if pt != geo.coords[0] and pt == geo.coords[-1]:
# geo.coords = list(geo.coords)[::-1] # Shapely 2.0
geo = LineString(list(geo.coords)[::-1])
# ---------- Single depth/pass --------
if not multidepth:
# calculate the cut distance
total_cut += geo.length
self.gcode += self.create_gcode_single_pass(geo, current_tooldia, extracut, self.extracut_length,
tolerance, z_move=z_move, old_point=current_pt)
# --------- Multi-pass ---------
else:
# calculate the cut distance
# due of the number of cuts (multi depth) it has to multiplied by the number of cuts
nr_cuts = 0
depth = abs(self.z_cut)
while depth > 0:
nr_cuts += 1
depth -= float(self.z_depthpercut)
total_cut += (geo.length * nr_cuts)
gc, geo = self.create_gcode_multi_pass(geo, current_tooldia, extracut, self.extracut_length,
tolerance, z_move=z_move, postproc=p,
old_point=current_pt)
self.gcode += gc
# calculate the travel distance
total_travel += abs(distance(pt1=current_pt, pt2=pt))
current_pt = geo.coords[-1]
pt, geo = storage.nearest(current_pt) # Next
# update the activity counter (lower left side of the app, status bar)
disp_number = int(np.interp(path_count, [0, geo_len], [0, 100]))
if old_disp_number < disp_number <= 100:
self.app.proc_container.update_view_text(' %d%%' % disp_number)
old_disp_number = disp_number
except StopIteration: # Nothing found in storage.
pass
log.debug("Finishing G-Code... %s paths traced." % path_count)
# add move to end position
total_travel += abs(distance_euclidian(current_pt[0], current_pt[1], 0, 0))
self.travel_distance += total_travel + total_cut
self.routing_time += total_cut / self.feedrate
# Finish
self.gcode += self.doformat(p.spindle_stop_code)
self.gcode += self.doformat(p.lift_code, x=current_pt[0], y=current_pt[1])
self.gcode += self.doformat(p.end_code, x=0, y=0)
self.app.inform.emit(
'%s... %s %s.' % (_("Finished G-Code generation"), str(path_count), _("paths traced"))
)
return self.gcode, start_gcode
def generate_gcode_from_solderpaste_geo(self, **kwargs):
"""
Algorithm to generate from multitool Geometry.
Algorithm description:
----------------------
Uses RTree to find the nearest path to follow.
:return: Gcode string
"""
log.debug("Generate_from_solderpaste_geometry()")
# ## Index first and last points in paths
# What points to index.
def get_pts(o):
return [o.coords[0], o.coords[-1]]
self.gcode = ""
if not kwargs:
log.debug("camlib.generate_from_solderpaste_geo() --> No tool in the solderpaste geometry.")
self.app.inform.emit('[ERROR_NOTCL] %s' %
_("There is no tool data in the SolderPaste geometry."))
# this is the tool diameter, it is used as such to accommodate the preprocessor who need the tool diameter
# given under the name 'toolC'
self.postdata['z_start'] = kwargs['data']['tools_solderpaste_z_start']
self.postdata['z_dispense'] = kwargs['data']['tools_solderpaste_z_dispense']
self.postdata['z_stop'] = kwargs['data']['tools_solderpaste_z_stop']
self.postdata['z_travel'] = kwargs['data']['tools_solderpaste_z_travel']
self.postdata['z_toolchange'] = kwargs['data']['tools_solderpaste_z_toolchange']
self.postdata['xy_toolchange'] = kwargs['data']['tools_solderpaste_xy_toolchange']
self.postdata['frxy'] = kwargs['data']['tools_solderpaste_frxy']
self.postdata['frz'] = kwargs['data']['tools_solderpaste_frz']
self.postdata['frz_dispense'] = kwargs['data']['tools_solderpaste_frz_dispense']
self.postdata['speedfwd'] = kwargs['data']['tools_solderpaste_speedfwd']
self.postdata['dwellfwd'] = kwargs['data']['tools_solderpaste_dwellfwd']
self.postdata['speedrev'] = kwargs['data']['tools_solderpaste_speedrev']
self.postdata['dwellrev'] = kwargs['data']['tools_solderpaste_dwellrev']
self.postdata['pp_solderpaste_name'] = kwargs['data']['tools_solderpaste_pp']
self.postdata['toolC'] = kwargs['tooldia']
self.pp_solderpaste_name = kwargs['data']['tools_solderpaste_pp'] if kwargs['data']['tools_solderpaste_pp'] \
else self.app.defaults['tools_solderpaste_pp']
p = self.app.preprocessors[self.pp_solderpaste_name]
# ## Flatten the geometry. Only linear elements (no polygons) remain.
flat_geometry = self.flatten(kwargs['solid_geometry'], pathonly=True)
log.debug("%d paths" % len(flat_geometry))
# Create the indexed storage.
storage = FlatCAMRTreeStorage()
storage.get_points = get_pts
# Store the geometry
log.debug("Indexing geometry before generating G-Code...")
for geo_shape in flat_geometry:
if self.app.abort_flag:
# graceful abort requested by the user
raise grace
if geo_shape is not None:
storage.insert(geo_shape)
# Initial G-Code
self.gcode = self.doformat(p.start_code)
self.gcode += self.doformat(p.spindle_off_code)
self.gcode += self.doformat(p.toolchange_code)
# ## Iterate over geometry paths getting the nearest each time.
log.debug("Starting SolderPaste G-Code...")
path_count = 0
current_pt = (0, 0)
# variables to display the percentage of work done
geo_len = len(flat_geometry)
old_disp_number = 0
pt, geo = storage.nearest(current_pt)
try:
while True:
if self.app.abort_flag:
# graceful abort requested by the user
raise grace
path_count += 1
# Remove before modifying, otherwise deletion will fail.
storage.remove(geo)
# If last point in geometry is the nearest but prefer the first one if last point == first point
# then reverse coordinates.
if pt != geo.coords[0] and pt == geo.coords[-1]:
# geo.coords = list(geo.coords)[::-1] # Shapely 2.0
geo = LineString(list(geo.coords)[::-1])
self.gcode += self.create_soldepaste_gcode(geo, p=p, old_point=current_pt)
current_pt = geo.coords[-1]
pt, geo = storage.nearest(current_pt) # Next
disp_number = int(np.interp(path_count, [0, geo_len], [0, 100]))
if old_disp_number < disp_number <= 100:
self.app.proc_container.update_view_text(' %d%%' % disp_number)
old_disp_number = disp_number
except StopIteration: # Nothing found in storage.
pass
log.debug("Finishing SolderPste G-Code... %s paths traced." % path_count)
self.app.inform.emit(
'%s... %s %s.' % (_("Finished SolderPaste G-Code generation"), str(path_count), _("paths traced"))
)
# Finish
self.gcode += self.doformat(p.lift_code)
self.gcode += self.doformat(p.end_code)
return self.gcode
def create_soldepaste_gcode(self, geometry, p, old_point=(0, 0)):
gcode = ''
path = geometry.coords
self.coordinates_type = self.app.defaults["cncjob_coords_type"]
if self.coordinates_type == "G90":
# For Absolute coordinates type G90
first_x = path[0][0]
first_y = path[0][1]
else:
# For Incremental coordinates type G91
first_x = path[0][0] - old_point[0]
first_y = path[0][1] - old_point[1]
if type(geometry) == LineString or type(geometry) == LinearRing:
# Move fast to 1st point
gcode += self.doformat(p.rapid_code, x=first_x, y=first_y) # Move to first point
# Move down to cutting depth
gcode += self.doformat(p.z_feedrate_code)
gcode += self.doformat(p.down_z_start_code)
gcode += self.doformat(p.spindle_fwd_code) # Start dispensing
gcode += self.doformat(p.dwell_fwd_code)
gcode += self.doformat(p.feedrate_z_dispense_code)
gcode += self.doformat(p.lift_z_dispense_code)
gcode += self.doformat(p.feedrate_xy_code)
# Cutting...
prev_x = first_x
prev_y = first_y
for pt in path[1:]:
if self.coordinates_type == "G90":
# For Absolute coordinates type G90
next_x = pt[0]
next_y = pt[1]
else:
# For Incremental coordinates type G91
next_x = pt[0] - prev_x
next_y = pt[1] - prev_y
gcode += self.doformat(p.linear_code, x=next_x, y=next_y) # Linear motion to point
prev_x = next_x
prev_y = next_y
# Up to travelling height.
gcode += self.doformat(p.spindle_off_code) # Stop dispensing
gcode += self.doformat(p.spindle_rev_code)
gcode += self.doformat(p.down_z_stop_code)
gcode += self.doformat(p.spindle_off_code)
gcode += self.doformat(p.dwell_rev_code)
gcode += self.doformat(p.z_feedrate_code)
gcode += self.doformat(p.lift_code)
elif type(geometry) == Point:
gcode += self.doformat(p.linear_code, x=first_x, y=first_y) # Move to first point
gcode += self.doformat(p.feedrate_z_dispense_code)
gcode += self.doformat(p.down_z_start_code)
gcode += self.doformat(p.spindle_fwd_code) # Start dispensing
gcode += self.doformat(p.dwell_fwd_code)
gcode += self.doformat(p.lift_z_dispense_code)
gcode += self.doformat(p.spindle_off_code) # Stop dispensing
gcode += self.doformat(p.spindle_rev_code)
gcode += self.doformat(p.spindle_off_code)
gcode += self.doformat(p.down_z_stop_code)
gcode += self.doformat(p.dwell_rev_code)
gcode += self.doformat(p.z_feedrate_code)
gcode += self.doformat(p.lift_code)
return gcode
def create_gcode_single_pass(self, geometry, cdia, extracut, extracut_length, tolerance, z_move, old_point=(0, 0)):
"""
# G-code. Note: self.linear2gcode() and self.point2gcode() will lower and raise the tool every time.
:param geometry: A Shapely Geometry (LineString or LinearRing) which is the path to be cut
:type geometry: LineString, LinearRing
:param cdia: Tool diameter
:type cdia: float
:param extracut: Will add an extra cut over the point where start of the cut is met with the end cut
:type extracut: bool
:param extracut_length: The length of the extra cut: half before the meeting point, half after
:type extracut_length: float
:param tolerance: Tolerance used to simplify the paths (making them mre rough)
:type tolerance: float
:param z_move: Travel Z
:type z_move: float
:param old_point: Previous point
:type old_point: tuple
:return: Gcode
:rtype: str
"""
# p = postproc
if type(geometry) == LineString or type(geometry) == LinearRing:
if extracut is False or not geometry.is_ring:
gcode_single_pass = self.linear2gcode(geometry, cdia, z_move=z_move, tolerance=tolerance,
old_point=old_point)
else:
gcode_single_pass = self.linear2gcode_extra(geometry, cdia, extracut_length, tolerance=tolerance,
z_move=z_move, old_point=old_point)
elif type(geometry) == Point:
gcode_single_pass = self.point2gcode(geometry, cdia, z_move=z_move, old_point=old_point)
else:
log.warning("G-code generation not implemented for %s" % (str(type(geometry))))
return
return gcode_single_pass
def create_gcode_multi_pass(self, geometry, cdia, extracut, extracut_length, tolerance, postproc, z_move,
old_point=(0, 0)):
"""
:param geometry: A Shapely Geometry (LineString or LinearRing) which is the path to be cut
:type geometry: LineString, LinearRing
:param cdia: Tool diameter
:type cdia: float
:param extracut: Will add an extra cut over the point where start of the cut is met with the end cut
:type extracut: bool
:param extracut_length: The length of the extra cut: half before the meeting point, half after
:type extracut_length: float
:param tolerance: Tolerance used to simplify the paths (making them mre rough)
:type tolerance: float
:param postproc: Preprocessor class
:type postproc: class
:param z_move: Travel Z
:type z_move: float
:param old_point: Previous point
:type old_point: tuple
:return: Gcode
:rtype: str
"""
p = postproc
gcode_multi_pass = ''
if isinstance(self.z_cut, Decimal):
z_cut = self.z_cut
else:
z_cut = Decimal(self.z_cut).quantize(Decimal('0.000000001'))
if self.z_depthpercut is None:
self.z_depthpercut = z_cut
elif not isinstance(self.z_depthpercut, Decimal):
self.z_depthpercut = Decimal(self.z_depthpercut).quantize(Decimal('0.000000001'))
depth = 0
reverse = False
while depth > z_cut:
# Increase depth. Limit to z_cut.
depth -= self.z_depthpercut
if depth < z_cut:
depth = z_cut
# Cut at specific depth and do not lift the tool.
# Note: linear2gcode() will use G00 to move to the first point in the path, but it should be already
# at the first point if the tool is down (in the material). So, an extra G00 should show up but
# is inconsequential.
if type(geometry) == LineString or type(geometry) == LinearRing:
if extracut is False or not geometry.is_ring:
gcode_multi_pass += self.linear2gcode(geometry, cdia, tolerance=tolerance, z_cut=depth, up=False,
z_move=z_move, old_point=old_point)
else:
gcode_multi_pass += self.linear2gcode_extra(geometry, cdia, extracut_length, tolerance=tolerance,
z_move=z_move, z_cut=depth, up=False,
old_point=old_point)
# Ignore multi-pass for points.
elif type(geometry) == Point:
gcode_multi_pass += self.point2gcode(geometry, cdia, z_move=z_move, old_point=old_point)
break # Ignoring ...
else:
log.warning("G-code generation not implemented for %s" % (str(type(geometry))))
# Reverse coordinates if not a loop so we can continue cutting without returning to the beginning.
if type(geometry) == LineString:
geometry = LineString(list(geometry.coords)[::-1])
reverse = True
# If geometry is reversed, revert.
if reverse:
if type(geometry) == LineString:
geometry = LineString(list(geometry.coords)[::-1])
# Lift the tool
gcode_multi_pass += self.doformat(p.lift_code, x=old_point[0], y=old_point[1])
return gcode_multi_pass, geometry
def codes_split(self, gline):
"""
Parses a line of G-Code such as "G01 X1234 Y987" into
a dictionary: {'G': 1.0, 'X': 1234.0, 'Y': 987.0}
:param gline: G-Code line string
:type gline: str
:return: Dictionary with parsed line.
:rtype: dict
"""
command = {}
if 'Roland' in self.pp_excellon_name or 'Roland' in self.pp_geometry_name:
match_z = re.search(r"^Z(\s*-?\d+\.\d+?),(\s*\s*-?\d+\.\d+?),(\s*\s*-?\d+\.\d+?)*;$", gline)
if match_z:
command['G'] = 0
command['X'] = float(match_z.group(1).replace(" ", "")) * 0.025
command['Y'] = float(match_z.group(2).replace(" ", "")) * 0.025
command['Z'] = float(match_z.group(3).replace(" ", "")) * 0.025
elif 'hpgl' in self.pp_excellon_name or 'hpgl' in self.pp_geometry_name:
match_pa = re.search(r"^PA(\s*-?\d+\.\d+?),(\s*\s*-?\d+\.\d+?)*;$", gline)
if match_pa:
command['G'] = 0
command['X'] = float(match_pa.group(1).replace(" ", "")) / 40
command['Y'] = float(match_pa.group(2).replace(" ", "")) / 40
match_pen = re.search(r"^(P[U|D])", gline)
if match_pen:
if match_pen.group(1) == 'PU':
# the value does not matter, only that it is positive so the gcode_parse() know it is > 0,
# therefore the move is of kind T (travel)
command['Z'] = 1
else:
command['Z'] = 0
elif 'laser' in self.pp_excellon_name.lower() or 'laser' in self.pp_geometry_name.lower() or \
(self.pp_solderpaste_name is not None and 'paste' in self.pp_solderpaste_name.lower()):
match_lsr = re.search(r"X([\+-]?\d+.[\+-]?\d+)\s*Y([\+-]?\d+.[\+-]?\d+)", gline)
if match_lsr:
command['X'] = float(match_lsr.group(1).replace(" ", ""))
command['Y'] = float(match_lsr.group(2).replace(" ", ""))
match_lsr_pos = re.search(r"^(M0?[3-5])", gline)
if match_lsr_pos:
if 'M05' in match_lsr_pos.group(1) or 'M5' in match_lsr_pos.group(1):
# the value does not matter, only that it is positive so the gcode_parse() know it is > 0,
# therefore the move is of kind T (travel)
command['Z'] = 1
else:
command['Z'] = 0
match_lsr_pos_2 = re.search(r"^(M10[6|7])", gline)
if match_lsr_pos_2:
if 'M107' in match_lsr_pos_2.group(1):
command['Z'] = 1
else:
command['Z'] = 0
elif self.pp_solderpaste_name is not None:
if 'Paste' in self.pp_solderpaste_name:
match_paste = re.search(r"X([\+-]?\d+.[\+-]?\d+)\s*Y([\+-]?\d+.[\+-]?\d+)", gline)
if match_paste:
command['X'] = float(match_paste.group(1).replace(" ", ""))
command['Y'] = float(match_paste.group(2).replace(" ", ""))
else:
match = re.search(r'^\s*([A-Z])\s*([\+\-\.\d\s]+)', gline)
while match:
command[match.group(1)] = float(match.group(2).replace(" ", ""))
gline = gline[match.end():]
match = re.search(r'^\s*([A-Z])\s*([\+\-\.\d\s]+)', gline)
return command
def gcode_parse(self, force_parsing=None):
"""
G-Code parser (from self.gcode). Generates dictionary with
single-segment LineString's and "kind" indicating cut or travel,
fast or feedrate speed.
Will return a list of dict in the format:
{
"geom": LineString(path),
"kind": kind
}
where kind can be either ["C", "F"] # T=travel, C=cut, F=fast, S=slow
:param force_parsing:
:type force_parsing:
:return:
:rtype: dict
"""
kind = ["C", "F"] # T=travel, C=cut, F=fast, S=slow
# Results go here
geometry = []
# Last known instruction
current = {'X': 0.0, 'Y': 0.0, 'Z': 0.0, 'G': 0}
# Current path: temporary storage until tool is
# lifted or lowered.
if self.toolchange_xy_type == "excellon":
if self.app.defaults["tools_drill_toolchangexy"] == '' or \
self.app.defaults["tools_drill_toolchangexy"] is None:
pos_xy = (0, 0)
else:
pos_xy = self.app.defaults["tools_drill_toolchangexy"]
try:
pos_xy = [float(eval(a)) for a in pos_xy.split(",")]
except Exception:
if len(pos_xy) != 2:
pos_xy = (0, 0)
else:
if self.app.defaults["geometry_toolchangexy"] == '' or self.app.defaults["geometry_toolchangexy"] is None:
pos_xy = (0, 0)
else:
pos_xy = self.app.defaults["geometry_toolchangexy"]
try:
pos_xy = [float(eval(a)) for a in pos_xy.split(",")]
except Exception:
if len(pos_xy) != 2:
pos_xy = (0, 0)
path = [pos_xy]
# path = [(0, 0)]
gcode_lines_list = self.gcode.splitlines()
self.app.inform.emit('%s: %d' % (_("Parsing GCode file. Number of lines"), len(gcode_lines_list)))
# Process every instruction
for line in gcode_lines_list:
if force_parsing is False or force_parsing is None:
if '%MO' in line or '%' in line or 'MOIN' in line or 'MOMM' in line:
return "fail"
gobj = self.codes_split(line)
# ## Units
if 'G' in gobj and (gobj['G'] == 20.0 or gobj['G'] == 21.0):
self.units = {20.0: "IN", 21.0: "MM"}[gobj['G']]
continue
# TODO take into consideration the tools and update the travel line thickness
if 'T' in gobj:
pass
# ## Changing height
if 'Z' in gobj:
if 'Roland' in self.pp_excellon_name or 'Roland' in self.pp_geometry_name:
pass
elif 'hpgl' in self.pp_excellon_name or 'hpgl' in self.pp_geometry_name:
pass
elif 'laser' in self.pp_excellon_name or 'laser' in self.pp_geometry_name:
pass
elif ('X' in gobj or 'Y' in gobj) and gobj['Z'] != current['Z']:
if self.pp_geometry_name == 'line_xyz' or self.pp_excellon_name == 'line_xyz':
pass
else:
log.warning("Non-orthogonal motion: From %s" % str(current))
log.warning(" To: %s" % str(gobj))
current['Z'] = gobj['Z']
# Store the path into geometry and reset path
if len(path) > 1:
geometry.append({"geom": LineString(path),
"kind": kind})
path = [path[-1]] # Start with the last point of last path.
# create the geometry for the holes created when drilling Excellon drills
if self.origin_kind == 'excellon':
if current['Z'] < 0:
current_drill_point_coords = (
float('%.*f' % (self.decimals, current['X'])),
float('%.*f' % (self.decimals, current['Y']))
)
# find the drill diameter knowing the drill coordinates
break_loop = False
for tool, tool_dict in self.exc_tools.items():
if 'drills' in tool_dict:
for drill_pt in tool_dict['drills']:
point_in_dict_coords = (
float('%.*f' % (self.decimals, drill_pt.x)),
float('%.*f' % (self.decimals, drill_pt.y))
)
if point_in_dict_coords == current_drill_point_coords:
dia = self.exc_tools[tool]['tooldia']
kind = ['C', 'F']
geometry.append(
{
"geom": Point(current_drill_point_coords).buffer(dia / 2.0).exterior,
"kind": kind
}
)
break_loop = True
break
if break_loop:
break
if 'G' in gobj:
current['G'] = int(gobj['G'])
if 'X' in gobj or 'Y' in gobj:
if 'X' in gobj:
x = gobj['X']
# current['X'] = x
else:
x = current['X']
if 'Y' in gobj:
y = gobj['Y']
else:
y = current['Y']
kind = ["C", "F"] # T=travel, C=cut, F=fast, S=slow
if current['Z'] > 0:
kind[0] = 'T'
if current['G'] > 0:
kind[1] = 'S'
if current['G'] in [0, 1]: # line
path.append((x, y))
arcdir = [None, None, "cw", "ccw"]
if current['G'] in [2, 3]: # arc
center = [gobj['I'] + current['X'], gobj['J'] + current['Y']]
radius = np.sqrt(gobj['I'] ** 2 + gobj['J'] ** 2)
start = np.arctan2(-gobj['J'], -gobj['I'])
stop = np.arctan2(-center[1] + y, -center[0] + x)
path += arc(center, radius, start, stop, arcdir[current['G']], int(self.steps_per_circle))
current['X'] = x
current['Y'] = y
# Update current instruction
for code in gobj:
current[code] = gobj[code]
self.app.inform.emit('%s...' % _("Creating Geometry from the parsed GCode file. "))
# There might not be a change in height at the
# end, therefore, see here too if there is
# a final path.
if len(path) > 1:
geometry.append(
{
"geom": LineString(path),
"kind": kind
}
)
self.gcode_parsed = geometry
return geometry
def excellon_tool_gcode_parse(self, dia, gcode, start_pt=(0, 0), force_parsing=None):
"""
G-Code parser (from self.exc_cnc_tools['tooldia']['gcode']). Generates dictionary with
single-segment LineString's and "kind" indicating cut or travel,
fast or feedrate speed.
Will return the Geometry as a list of dict in the format:
{
"geom": LineString(path),
"kind": kind
}
where kind can be either ["C", "F"] # T=travel, C=cut, F=fast, S=slow
:param dia: the dia is a tool diameter which is the key in self.exc_cnc_tools dict
:type dia: float
:param gcode: Gcode to parse
:type gcode: str
:param start_pt: the point coordinates from where to start the parsing
:type start_pt: tuple
:param force_parsing:
:type force_parsing: bool
:return: Geometry as a list of dictionaries
:rtype: list
"""
kind = ["C", "F"] # T=travel, C=cut, F=fast, S=slow
# Results go here
geometry = []
# Last known instruction
current = {'X': 0.0, 'Y': 0.0, 'Z': 0.0, 'G': 0}
# Current path: temporary storage until tool is
# lifted or lowered.
pos_xy = start_pt
path = [pos_xy]
# path = [(0, 0)]
gcode_lines_list = gcode.splitlines()
self.app.inform.emit(
'%s: %s. %s: %d' % (_("Parsing GCode file for tool diameter"),
str(dia), _("Number of lines"),
len(gcode_lines_list))
)
# Process every instruction
for line in gcode_lines_list:
if force_parsing is False or force_parsing is None:
if '%MO' in line or '%' in line or 'MOIN' in line or 'MOMM' in line:
return "fail"
gobj = self.codes_split(line)
# ## Units
if 'G' in gobj and (gobj['G'] == 20.0 or gobj['G'] == 21.0):
self.units = {20.0: "IN", 21.0: "MM"}[gobj['G']]
continue
# TODO take into consideration the tools and update the travel line thickness
if 'T' in gobj:
pass
# ## Changing height
if 'Z' in gobj:
if 'Roland' in self.pp_excellon_name or 'Roland' in self.pp_geometry_name:
pass
elif 'hpgl' in self.pp_excellon_name or 'hpgl' in self.pp_geometry_name:
pass
elif 'laser' in self.pp_excellon_name or 'laser' in self.pp_geometry_name:
pass
elif ('X' in gobj or 'Y' in gobj) and gobj['Z'] != current['Z']:
if self.pp_geometry_name == 'line_xyz' or self.pp_excellon_name == 'line_xyz':
pass
else:
log.warning("Non-orthogonal motion: From %s" % str(current))
log.warning(" To: %s" % str(gobj))
current['Z'] = gobj['Z']
# Store the path into geometry and reset path
if len(path) > 1:
geometry.append({"geom": LineString(path),
"kind": kind})
path = [path[-1]] # Start with the last point of last path.
# create the geometry for the holes created when drilling Excellon drills
if current['Z'] < 0:
current_drill_point_coords = (
float('%.*f' % (self.decimals, current['X'])),
float('%.*f' % (self.decimals, current['Y']))
)
kind = ['C', 'F']
geometry.append(
{
"geom": Point(current_drill_point_coords).buffer(dia/2.0).exterior,
"kind": kind
}
)
if 'G' in gobj:
current['G'] = int(gobj['G'])
if 'X' in gobj or 'Y' in gobj:
x = gobj['X'] if 'X' in gobj else current['X']
y = gobj['Y'] if 'Y' in gobj else current['Y']
kind = ["C", "F"] # T=travel, C=cut, F=fast, S=slow
if current['Z'] > 0:
kind[0] = 'T'
if current['G'] > 0:
kind[1] = 'S'
if current['G'] in [0, 1]: # line
path.append((x, y))
arcdir = [None, None, "cw", "ccw"]
if current['G'] in [2, 3]: # arc
center = [gobj['I'] + current['X'], gobj['J'] + current['Y']]
radius = np.sqrt(gobj['I'] ** 2 + gobj['J'] ** 2)
start = np.arctan2(-gobj['J'], -gobj['I'])
stop = np.arctan2(-center[1] + y, -center[0] + x)
path += arc(center, radius, start, stop, arcdir[current['G']], int(self.steps_per_circle))
current['X'] = x
current['Y'] = y
# Update current instruction
for code in gobj:
current[code] = gobj[code]
self.app.inform.emit('%s: %s' % (_("Creating Geometry from the parsed GCode file for tool diameter"), str(dia)))
# There might not be a change in height at the end, therefore, see here too if there is a final path.
if len(path) > 1:
geometry.append(
{
"geom": LineString(path),
"kind": kind
}
)
return geometry
# def plot(self, tooldia=None, dpi=75, margin=0.1,
# color={"T": ["#F0E24D", "#B5AB3A"], "C": ["#5E6CFF", "#4650BD"]},
# alpha={"T": 0.3, "C": 1.0}):
# """
# Creates a Matplotlib figure with a plot of the
# G-code job.
# """
# if tooldia is None:
# tooldia = self.tooldia
#
# fig = Figure(dpi=dpi)
# ax = fig.add_subplot(111)
# ax.set_aspect(1)
# xmin, ymin, xmax, ymax = self.input_geometry_bounds
# ax.set_xlim(xmin-margin, xmax+margin)
# ax.set_ylim(ymin-margin, ymax+margin)
#
# if tooldia == 0:
# for geo in self.gcode_parsed:
# linespec = '--'
# linecolor = color[geo['kind'][0]][1]
# if geo['kind'][0] == 'C':
# linespec = 'k-'
# x, y = geo['geom'].coords.xy
# ax.plot(x, y, linespec, color=linecolor)
# else:
# for geo in self.gcode_parsed:
# poly = geo['geom'].buffer(tooldia/2.0)
# patch = PolygonPatch(poly, facecolor=color[geo['kind'][0]][0],
# edgecolor=color[geo['kind'][0]][1],
# alpha=alpha[geo['kind'][0]], zorder=2)
# ax.add_patch(patch)
#
# return fig
def plot2(self, tooldia=None, dpi=75, margin=0.1, gcode_parsed=None,
color=None, alpha={"T": 0.3, "C": 1.0}, tool_tolerance=0.0005, obj=None, visible=False, kind='all'):
"""
Plots the G-code job onto the given axes.
:param tooldia: Tool diameter.
:type tooldia: float
:param dpi: Not used!
:type dpi: float
:param margin: Not used!
:type margin: float
:param gcode_parsed: Parsed Gcode
:type gcode_parsed: str
:param color: Color specification.
:type color: str
:param alpha: Transparency specification.
:type alpha: dict
:param tool_tolerance: Tolerance when drawing the toolshape.
:type tool_tolerance: float
:param obj: The object for whih to plot
:type obj: class
:param visible: Visibility status
:type visible: bool
:param kind: Can be: "travel", "cut", "all"
:type kind: str
:return: None
:rtype:
"""
# units = self.app.ui.general_defaults_form.general_app_group.units_radio.get_value().upper()
if color is None:
color = {
"T": [self.app.defaults["cncjob_travel_fill"], self.app.defaults["cncjob_travel_line"]],
"C": [self.app.defaults["cncjob_plot_fill"], self.app.defaults["cncjob_plot_line"]]
}
gcode_parsed = gcode_parsed if gcode_parsed else self.gcode_parsed
if tooldia is None:
tooldia = self.tooldia
# this should be unlikely unless when upstream the tooldia is a tuple made by one dia and a comma like (2.4,)
if isinstance(tooldia, list):
tooldia = tooldia[0] if tooldia[0] is not None else self.tooldia
if tooldia == 0:
for geo in gcode_parsed:
if kind == 'all':
obj.add_shape(shape=geo['geom'], color=color[geo['kind'][0]][1], visible=visible)
elif kind == 'travel':
if geo['kind'][0] == 'T':
obj.add_shape(shape=geo['geom'], color=color['T'][1], visible=visible)
elif kind == 'cut':
if geo['kind'][0] == 'C':
obj.add_shape(shape=geo['geom'], color=color['C'][1], visible=visible)
else:
path_num = 0
self.coordinates_type = self.app.defaults["cncjob_coords_type"]
if self.coordinates_type == "G90":
# For Absolute coordinates type G90
for geo in gcode_parsed:
if geo['kind'][0] == 'T':
start_position = geo['geom'].coords[0]
if tooldia not in obj.annotations_dict:
obj.annotations_dict[tooldia] = {
'pos': [],
'text': []
}
if start_position not in obj.annotations_dict[tooldia]['pos']:
path_num += 1
obj.annotations_dict[tooldia]['pos'].append(start_position)
obj.annotations_dict[tooldia]['text'].append(str(path_num))
end_position = geo['geom'].coords[-1]
if tooldia not in obj.annotations_dict:
obj.annotations_dict[tooldia] = {
'pos': [],
'text': []
}
if end_position not in obj.annotations_dict[tooldia]['pos']:
path_num += 1
obj.annotations_dict[tooldia]['pos'].append(end_position)
obj.annotations_dict[tooldia]['text'].append(str(path_num))
# plot the geometry of Excellon objects
if self.origin_kind == 'excellon':
try:
# if the geos are travel lines
if geo['kind'][0] == 'T':
poly = geo['geom'].buffer(distance=(tooldia / 1.99999999),
resolution=self.steps_per_circle)
else:
poly = Polygon(geo['geom'])
poly = poly.simplify(tool_tolerance)
except Exception:
# deal here with unexpected plot errors due of LineStrings not valid
continue
else:
# plot the geometry of any objects other than Excellon
poly = geo['geom'].buffer(distance=(tooldia / 1.99999999), resolution=self.steps_per_circle)
poly = poly.simplify(tool_tolerance)
if kind == 'all':
obj.add_shape(shape=poly, color=color[geo['kind'][0]][1], face_color=color[geo['kind'][0]][0],
visible=visible, layer=1 if geo['kind'][0] == 'C' else 2)
elif kind == 'travel':
if geo['kind'][0] == 'T':
obj.add_shape(shape=poly, color=color['T'][1], face_color=color['T'][0],
visible=visible, layer=2)
elif kind == 'cut':
if geo['kind'][0] == 'C':
obj.add_shape(shape=poly, color=color['C'][1], face_color=color['C'][0],
visible=visible, layer=1)
else:
self.app.inform.emit('[ERROR_NOTCL] %s...' % _('G91 coordinates not implemented'))
return 'fail'
def plot_annotations(self, obj, visible=True):
"""
Plot annotations.
:param obj: FlatCAM CNCJob object for which to plot the annotations
:type obj:
:param visible: annotations visibility
:type visible: bool
:return: Nothing
:rtype:
"""
if not obj.annotations_dict:
return
if visible is True:
if self.app.is_legacy is False:
obj.annotation.clear(update=True)
obj.text_col.visible = True
else:
obj.text_col.visible = False
return
text = []
pos = []
for tooldia in obj.annotations_dict:
pos += obj.annotations_dict[tooldia]['pos']
text += obj.annotations_dict[tooldia]['text']
if not text or not pos:
return
try:
if self.app.defaults['global_theme'] == 'white':
obj.annotation.set(text=text, pos=pos, visible=obj.options['plot'],
font_size=self.app.defaults["cncjob_annotation_fontsize"],
color=self.app.defaults["cncjob_annotation_fontcolor"])
else:
# invert the color
old_color = self.app.defaults["cncjob_annotation_fontcolor"].lower()
new_color = ''
code = {}
l1 = "#;0123456789abcdef"
l2 = "#;fedcba9876543210"
for i in range(len(l1)):
code[l1[i]] = l2[i]
for x in range(len(old_color)):
new_color += code[old_color[x]]
obj.annotation.set(text=text, pos=pos, visible=obj.options['plot'],
font_size=self.app.defaults["cncjob_annotation_fontsize"],
color=new_color)
except Exception as e:
log.debug("CNCJob.plot2() --> annotations --> %s" % str(e))
if self.app.is_legacy is False:
obj.annotation.clear(update=True)
obj.annotation.redraw()
def create_geometry(self):
"""
It is used by the Excellon objects. Will create the solid_geometry which will be an attribute of the
Excellon object class.
:return: List of Shapely geometry elements
:rtype: list
"""
# This takes forever. Too much data?
# self.app.inform.emit('%s: %s' % (_("Unifying Geometry from parsed Geometry segments"),
# str(len(self.gcode_parsed))))
# self.solid_geometry = unary_union([geo['geom'] for geo in self.gcode_parsed])
# This is much faster but not so nice to look at as you can see different segments of the geometry
self.solid_geometry = [geo['geom'] for geo in self.gcode_parsed]
return self.solid_geometry
def segment(self, coords):
"""
Break long linear lines to make it more auto level friendly.
Code snippet added by Lei Zheng in a rejected pull request on FlatCAM https://bitbucket.org/realthunder/
:param coords: List of coordinates tuples
:type coords: list
:return: A path; list with the multiple coordinates breaking a line.
:rtype: list
"""
if len(coords) < 2 or self.segx <= 0 and self.segy <= 0:
return list(coords)
path = [coords[0]]
# break the line in either x or y dimension only
def linebreak_single(line, dim, dmax):
if dmax <= 0:
return None
if line[1][dim] > line[0][dim]:
sign = 1.0
d = line[1][dim] - line[0][dim]
else:
sign = -1.0
d = line[0][dim] - line[1][dim]
if d > dmax:
# make sure we don't make any new lines too short
if d > dmax * 2:
dd = dmax
else:
dd = d / 2
other = dim ^ 1
return (line[0][dim] + dd * sign, line[0][other] + \
dd * (line[1][other] - line[0][other]) / d)
return None
# recursively breaks down a given line until it is within the
# required step size
def linebreak(line):
pt_new = linebreak_single(line, 0, self.segx)
if pt_new is None:
pt_new2 = linebreak_single(line, 1, self.segy)
else:
pt_new2 = linebreak_single((line[0], pt_new), 1, self.segy)
if pt_new2 is not None:
pt_new = pt_new2[::-1]
if pt_new is None:
path.append(line[1])
else:
path.append(pt_new)
linebreak((pt_new, line[1]))
for pt in coords[1:]:
linebreak((path[-1], pt))
return path
def linear2gcode(self, linear, dia, tolerance=0, down=True, up=True, z_cut=None, z_move=None, zdownrate=None,
feedrate=None, feedrate_z=None, feedrate_rapid=None, cont=False, old_point=(0, 0)):
"""
Generates G-code to cut along the linear feature.
:param linear: The path to cut along.
:type: Shapely.LinearRing or Shapely.Linear String
:param dia: The tool diameter that is going on the path
:type dia: float
:param tolerance: All points in the simplified object will be within the
tolerance distance of the original geometry.
:type tolerance: float
:param down:
:param up:
:param z_cut:
:param z_move:
:param zdownrate:
:param feedrate: speed for cut on X - Y plane
:param feedrate_z: speed for cut on Z plane
:param feedrate_rapid: speed to move between cuts; usually is G0 but some CNC require to specify it
:param cont:
:param old_point:
:return: G-code to cut along the linear feature.
"""
if z_cut is None:
z_cut = self.z_cut
if z_move is None:
z_move = self.z_move
#
# if zdownrate is None:
# zdownrate = self.zdownrate
if feedrate is None:
feedrate = self.feedrate
if feedrate_z is None:
feedrate_z = self.z_feedrate
if feedrate_rapid is None:
feedrate_rapid = self.feedrate_rapid
# Simplify paths?
if tolerance > 0:
target_linear = linear.simplify(tolerance)
else:
target_linear = linear
gcode = ""
# path = list(target_linear.coords)
path = self.segment(target_linear.coords)
p = self.pp_geometry
self.coordinates_type = self.app.defaults["cncjob_coords_type"]
if self.coordinates_type == "G90":
# For Absolute coordinates type G90
first_x = path[0][0]
first_y = path[0][1]
else:
# For Incremental coordinates type G91
first_x = path[0][0] - old_point[0]
first_y = path[0][1] - old_point[1]
# Move fast to 1st point
if not cont:
current_tooldia = dia
travels = self.app.exc_areas.travel_coordinates(start_point=(old_point[0], old_point[1]),
end_point=(first_x, first_y),
tooldia=current_tooldia)
prev_z = None
for travel in travels:
locx = travel[1][0]
locy = travel[1][1]
if travel[0] is not None:
# move to next point
gcode += self.doformat(p.rapid_code, x=locx, y=locy)
# raise to safe Z (travel[0]) each time because safe Z may be different
self.z_move = travel[0]
gcode += self.doformat(p.lift_code, x=locx, y=locy)
# restore z_move
self.z_move = z_move
else:
if prev_z is not None:
# move to next point
gcode += self.doformat(p.rapid_code, x=locx, y=locy)
# we assume that previously the z_move was altered therefore raise to
# the travel_z (z_move)
self.z_move = z_move
gcode += self.doformat(p.lift_code, x=locx, y=locy)
else:
# move to next point
gcode += self.doformat(p.rapid_code, x=locx, y=locy)
# store prev_z
prev_z = travel[0]
# gcode += self.doformat(p.rapid_code, x=first_x, y=first_y) # Move to first point
# Move down to cutting depth
if down:
# Different feedrate for vertical cut?
gcode += self.doformat(p.z_feedrate_code)
# gcode += self.doformat(p.feedrate_code)
gcode += self.doformat(p.down_code, x=first_x, y=first_y, z_cut=z_cut)
gcode += self.doformat(p.feedrate_code, feedrate=feedrate)
# Cutting...
prev_x = first_x
prev_y = first_y
for pt in path[1:]:
if self.app.abort_flag:
# graceful abort requested by the user
raise grace
if self.coordinates_type == "G90":
# For Absolute coordinates type G90
next_x = pt[0]
next_y = pt[1]
else:
# For Incremental coordinates type G91
# next_x = pt[0] - prev_x
# next_y = pt[1] - prev_y
self.app.inform.emit('[ERROR_NOTCL] %s...' % _('G91 coordinates not implemented'))
next_x = pt[0]
next_y = pt[1]
gcode += self.doformat(p.linear_code, x=next_x, y=next_y, z=z_cut) # Linear motion to point
prev_x = pt[0]
prev_y = pt[1]
# Up to travelling height.
if up:
gcode += self.doformat(p.lift_code, x=prev_x, y=prev_y, z_move=z_move) # Stop cutting
return gcode
def linear2gcode_extra(self, linear, dia, extracut_length, tolerance=0, down=True, up=True,
z_cut=None, z_move=None, zdownrate=None,
feedrate=None, feedrate_z=None, feedrate_rapid=None, cont=False, old_point=(0, 0)):
"""
Generates G-code to cut along the linear feature.
:param linear: The path to cut along.
:type: Shapely.LinearRing or Shapely.Linear String
:param dia: The tool diameter that is going on the path
:type dia: float
:param extracut_length: how much to cut extra over the first point at the end of the path
:param tolerance: All points in the simplified object will be within the
tolerance distance of the original geometry.
:type tolerance: float
:param down:
:param up:
:param z_cut:
:param z_move:
:param zdownrate:
:param feedrate: speed for cut on X - Y plane
:param feedrate_z: speed for cut on Z plane
:param feedrate_rapid: speed to move between cuts; usually is G0 but some CNC require to specify it
:param cont:
:param old_point:
:return: G-code to cut along the linear feature.
:rtype: str
"""
if z_cut is None:
z_cut = self.z_cut
if z_move is None:
z_move = self.z_move
#
# if zdownrate is None:
# zdownrate = self.zdownrate
if feedrate is None:
feedrate = self.feedrate
if feedrate_z is None:
feedrate_z = self.z_feedrate
if feedrate_rapid is None:
feedrate_rapid = self.feedrate_rapid
# Simplify paths?
if tolerance > 0:
target_linear = linear.simplify(tolerance)
else:
target_linear = linear
gcode = ""
path = list(target_linear.coords)
p = self.pp_geometry
self.coordinates_type = self.app.defaults["cncjob_coords_type"]
if self.coordinates_type == "G90":
# For Absolute coordinates type G90
first_x = path[0][0]
first_y = path[0][1]
else:
# For Incremental coordinates type G91
first_x = path[0][0] - old_point[0]
first_y = path[0][1] - old_point[1]
# Move fast to 1st point
if not cont:
current_tooldia = dia
travels = self.app.exc_areas.travel_coordinates(start_point=(old_point[0], old_point[1]),
end_point=(first_x, first_y),
tooldia=current_tooldia)
prev_z = None
for travel in travels:
locx = travel[1][0]
locy = travel[1][1]
if travel[0] is not None:
# move to next point
gcode += self.doformat(p.rapid_code, x=locx, y=locy)
# raise to safe Z (travel[0]) each time because safe Z may be different
self.z_move = travel[0]
gcode += self.doformat(p.lift_code, x=locx, y=locy)
# restore z_move
self.z_move = z_move
else:
if prev_z is not None:
# move to next point
gcode += self.doformat(p.rapid_code, x=locx, y=locy)
# we assume that previously the z_move was altered therefore raise to
# the travel_z (z_move)
self.z_move = z_move
gcode += self.doformat(p.lift_code, x=locx, y=locy)
else:
# move to next point
gcode += self.doformat(p.rapid_code, x=locx, y=locy)
# store prev_z
prev_z = travel[0]
# gcode += self.doformat(p.rapid_code, x=first_x, y=first_y) # Move to first point
# Move down to cutting depth
if down:
# Different feedrate for vertical cut?
if self.z_feedrate is not None:
gcode += self.doformat(p.z_feedrate_code)
# gcode += self.doformat(p.feedrate_code)
gcode += self.doformat(p.down_code, x=first_x, y=first_y, z_cut=z_cut)
gcode += self.doformat(p.feedrate_code, feedrate=feedrate)
else:
gcode += self.doformat(p.down_code, x=first_x, y=first_y, z_cut=z_cut) # Start cutting
# Cutting...
prev_x = first_x
prev_y = first_y
for pt in path[1:]:
if self.app.abort_flag:
# graceful abort requested by the user
raise grace
if self.coordinates_type == "G90":
# For Absolute coordinates type G90
next_x = pt[0]
next_y = pt[1]
else:
# For Incremental coordinates type G91
# For Incremental coordinates type G91
# next_x = pt[0] - prev_x
# next_y = pt[1] - prev_y
self.app.inform.emit('[ERROR_NOTCL] %s...' % _('G91 coordinates not implemented'))
next_x = pt[0]
next_y = pt[1]
gcode += self.doformat(p.linear_code, x=next_x, y=next_y, z=z_cut) # Linear motion to point
prev_x = next_x
prev_y = next_y
# this line is added to create an extra cut over the first point in patch
# to make sure that we remove the copper leftovers
# Linear motion to the 1st point in the cut path
# if self.coordinates_type == "G90":
# # For Absolute coordinates type G90
# last_x = path[1][0]
# last_y = path[1][1]
# else:
# # For Incremental coordinates type G91
# last_x = path[1][0] - first_x
# last_y = path[1][1] - first_y
# gcode += self.doformat(p.linear_code, x=last_x, y=last_y)
# the first point for extracut is always mandatory if the extracut is enabled. But if the length of distance
# between point 0 and point 1 is more than the distance we set for the extra cut then make an interpolation
# along the path and find the point at the distance extracut_length
if extracut_length == 0.0:
extra_path = [path[-1], path[0], path[1]]
new_x = extra_path[0][0]
new_y = extra_path[0][1]
# this is an extra line therefore lift the milling bit
gcode += self.doformat(p.lift_code, x=prev_x, y=prev_y, z_move=z_move) # lift
# move fast to the new first point
gcode += self.doformat(p.rapid_code, x=new_x, y=new_y)
# lower the milling bit
# Different feedrate for vertical cut?
if self.z_feedrate is not None:
gcode += self.doformat(p.z_feedrate_code)
gcode += self.doformat(p.down_code, x=new_x, y=new_y, z_cut=z_cut)
gcode += self.doformat(p.feedrate_code, feedrate=feedrate)
else:
gcode += self.doformat(p.down_code, x=new_x, y=new_y, z_cut=z_cut) # Start cutting
# start cutting the extra line
last_pt = extra_path[0]
for pt in extra_path[1:]:
gcode += self.doformat(p.linear_code, x=pt[0], y=pt[1])
last_pt = pt
# go back to the original point
gcode += self.doformat(p.linear_code, x=path[0][0], y=path[0][1])
last_pt = path[0]
else:
# go to the point that is 5% in length before the end (therefore 95% length from start of the line),
# along the line to be cut
if extracut_length >= target_linear.length:
extracut_length = target_linear.length
# ---------------------------------------------
# first half
# ---------------------------------------------
start_length = target_linear.length - (extracut_length * 0.5)
extra_line = substring(target_linear, start_length, target_linear.length)
extra_path = list(extra_line.coords)
new_x = extra_path[0][0]
new_y = extra_path[0][1]
# this is an extra line therefore lift the milling bit
gcode += self.doformat(p.lift_code, x=prev_x, y=prev_y, z_move=z_move) # lift
# move fast to the new first point
gcode += self.doformat(p.rapid_code, x=new_x, y=new_y)
# lower the milling bit
# Different feedrate for vertical cut?
if self.z_feedrate is not None:
gcode += self.doformat(p.z_feedrate_code)
gcode += self.doformat(p.down_code, x=new_x, y=new_y, z_cut=z_cut)
gcode += self.doformat(p.feedrate_code, feedrate=feedrate)
else:
gcode += self.doformat(p.down_code, x=new_x, y=new_y, z_cut=z_cut) # Start cutting
# start cutting the extra line
for pt in extra_path[1:]:
gcode += self.doformat(p.linear_code, x=pt[0], y=pt[1])
# ---------------------------------------------
# second half
# ---------------------------------------------
extra_line = substring(target_linear, 0, (extracut_length * 0.5))
extra_path = list(extra_line.coords)
# start cutting the extra line
last_pt = extra_path[0]
for pt in extra_path[1:]:
gcode += self.doformat(p.linear_code, x=pt[0], y=pt[1])
last_pt = pt
# ---------------------------------------------
# back to original start point, cutting
# ---------------------------------------------
extra_line = substring(target_linear, 0, (extracut_length * 0.5))
extra_path = list(extra_line.coords)[::-1]
# start cutting the extra line
last_pt = extra_path[0]
for pt in extra_path[1:]:
gcode += self.doformat(p.linear_code, x=pt[0], y=pt[1])
last_pt = pt
# if extracut_length == 0.0:
# gcode += self.doformat(p.linear_code, x=path[1][0], y=path[1][1])
# last_pt = path[1]
# else:
# if abs(distance(path[1], path[0])) > extracut_length:
# i_point = LineString([path[0], path[1]]).interpolate(extracut_length)
# gcode += self.doformat(p.linear_code, x=i_point.x, y=i_point.y)
# last_pt = (i_point.x, i_point.y)
# else:
# last_pt = path[0]
# for pt in path[1:]:
# extracut_distance = abs(distance(pt, last_pt))
# if extracut_distance <= extracut_length:
# gcode += self.doformat(p.linear_code, x=pt[0], y=pt[1])
# last_pt = pt
# else:
# break
# Up to travelling height.
if up:
gcode += self.doformat(p.lift_code, x=last_pt[0], y=last_pt[1], z_move=z_move) # Stop cutting
return gcode
def point2gcode(self, point, dia, z_move=None, old_point=(0, 0)):
"""
:param point: A Shapely Point
:type point: Point
:param dia: The tool diameter that is going on the path
:type dia: float
:param z_move: Travel Z
:type z_move: float
:param old_point: Old point coordinates from which we moved to the 'point'
:type old_point: tuple
:return: G-code to cut on the Point feature.
:rtype: str
"""
gcode = ""
if self.app.abort_flag:
# graceful abort requested by the user
raise grace
path = list(point.coords)
p = self.pp_geometry
self.coordinates_type = self.app.defaults["cncjob_coords_type"]
if self.coordinates_type == "G90":
# For Absolute coordinates type G90
first_x = path[0][0]
first_y = path[0][1]
else:
# For Incremental coordinates type G91
# first_x = path[0][0] - old_point[0]
# first_y = path[0][1] - old_point[1]
self.app.inform.emit('[ERROR_NOTCL] %s' %
_('G91 coordinates not implemented ...'))
first_x = path[0][0]
first_y = path[0][1]
current_tooldia = dia
travels = self.app.exc_areas.travel_coordinates(start_point=(old_point[0], old_point[1]),
end_point=(first_x, first_y),
tooldia=current_tooldia)
prev_z = None
for travel in travels:
locx = travel[1][0]
locy = travel[1][1]
if travel[0] is not None:
# move to next point
gcode += self.doformat(p.rapid_code, x=locx, y=locy)
# raise to safe Z (travel[0]) each time because safe Z may be different
self.z_move = travel[0]
gcode += self.doformat(p.lift_code, x=locx, y=locy)
# restore z_move
self.z_move = z_move
else:
if prev_z is not None:
# move to next point
gcode += self.doformat(p.rapid_code, x=locx, y=locy)
# we assume that previously the z_move was altered therefore raise to
# the travel_z (z_move)
self.z_move = z_move
gcode += self.doformat(p.lift_code, x=locx, y=locy)
else:
# move to next point
gcode += self.doformat(p.rapid_code, x=locx, y=locy)
# store prev_z
prev_z = travel[0]
# gcode += self.doformat(p.linear_code, x=first_x, y=first_y) # Move to first point
if self.z_feedrate is not None:
gcode += self.doformat(p.z_feedrate_code)
gcode += self.doformat(p.down_code, x=first_x, y=first_y, z_cut=self.z_cut)
gcode += self.doformat(p.feedrate_code)
else:
gcode += self.doformat(p.down_code, x=first_x, y=first_y, z_cut=self.z_cut) # Start cutting
gcode += self.doformat(p.lift_code, x=first_x, y=first_y) # Stop cutting
return gcode
def export_svg(self, scale_stroke_factor=0.00):
"""
Exports the CNC Job as a SVG Element
:param scale_stroke_factor: A factor to scale the SVG geometry
:type scale_stroke_factor: float
:return: SVG Element string
:rtype: str
"""
# scale_factor is a multiplication factor for the SVG stroke-width used within shapely's svg export
# If not specified then try and use the tool diameter
# This way what is on screen will match what is outputed for the svg
# This is quite a useful feature for svg's used with visicut
if scale_stroke_factor <= 0:
scale_stroke_factor = self.options['tooldia'] / 2
# If still 0 then default to 0.05
# This value appears to work for zooming, and getting the output svg line width
# to match that viewed on screen with FlatCam
if scale_stroke_factor == 0:
scale_stroke_factor = 0.01
# Separate the list of cuts and travels into 2 distinct lists
# This way we can add different formatting / colors to both
cuts = []
travels = []
cutsgeom = ''
travelsgeom = ''
for g in self.gcode_parsed:
if self.app.abort_flag:
# graceful abort requested by the user
raise grace
if g['kind'][0] == 'C':
cuts.append(g)
if g['kind'][0] == 'T':
travels.append(g)
# Used to determine the overall board size
self.solid_geometry = unary_union([geo['geom'] for geo in self.gcode_parsed])
# Convert the cuts and travels into single geometry objects we can render as svg xml
if travels:
travelsgeom = unary_union([geo['geom'] for geo in travels])
if self.app.abort_flag:
# graceful abort requested by the user
raise grace
if cuts:
cutsgeom = unary_union([geo['geom'] for geo in cuts])
# Render the SVG Xml
# The scale factor affects the size of the lines, and the stroke color adds different formatting for each set
# It's better to have the travels sitting underneath the cuts for visicut
svg_elem = ""
if travels:
svg_elem = travelsgeom.svg(scale_factor=scale_stroke_factor, stroke_color="#F0E24D")
if cuts:
svg_elem += cutsgeom.svg(scale_factor=scale_stroke_factor, stroke_color="#5E6CFF")
return svg_elem
def bounds(self, flatten=None):
"""
Returns coordinates of rectangular bounds of geometry: (xmin, ymin, xmax, ymax).
:param flatten: Not used, it is here for compatibility with base class method
:type flatten: bool
:return: Bounding values in format (xmin, ymin, xmax, ymax)
:rtype: tuple
"""
log.debug("camlib.CNCJob.bounds()")
def bounds_rec(obj):
if type(obj) is list:
cminx = np.Inf
cminy = np.Inf
cmaxx = -np.Inf
cmaxy = -np.Inf
for k in obj:
if type(k) is dict:
for key in k:
minx_, miny_, maxx_, maxy_ = bounds_rec(k[key])
cminx = min(cminx, minx_)
cminy = min(cminy, miny_)
cmaxx = max(cmaxx, maxx_)
cmaxy = max(cmaxy, maxy_)
else:
minx_, miny_, maxx_, maxy_ = bounds_rec(k)
cminx = min(cminx, minx_)
cminy = min(cminy, miny_)
cmaxx = max(cmaxx, maxx_)
cmaxy = max(cmaxy, maxy_)
return cminx, cminy, cmaxx, cmaxy
else:
# it's a Shapely object, return it's bounds
return obj.bounds
if self.multitool is False:
log.debug("CNCJob->bounds()")
if self.solid_geometry is None:
log.debug("solid_geometry is None")
return 0, 0, 0, 0
bounds_coords = bounds_rec(self.solid_geometry)
else:
minx = np.Inf
miny = np.Inf
maxx = -np.Inf
maxy = -np.Inf
if self.cnc_tools:
for k, v in self.cnc_tools.items():
minx = np.Inf
miny = np.Inf
maxx = -np.Inf
maxy = -np.Inf
try:
for k in v['solid_geometry']:
minx_, miny_, maxx_, maxy_ = bounds_rec(k)
minx = min(minx, minx_)
miny = min(miny, miny_)
maxx = max(maxx, maxx_)
maxy = max(maxy, maxy_)
except TypeError:
minx_, miny_, maxx_, maxy_ = bounds_rec(v['solid_geometry'])
minx = min(minx, minx_)
miny = min(miny, miny_)
maxx = max(maxx, maxx_)
maxy = max(maxy, maxy_)
if self.exc_cnc_tools:
for k, v in self.exc_cnc_tools.items():
minx = np.Inf
miny = np.Inf
maxx = -np.Inf
maxy = -np.Inf
try:
for k in v['solid_geometry']:
minx_, miny_, maxx_, maxy_ = bounds_rec(k)
minx = min(minx, minx_)
miny = min(miny, miny_)
maxx = max(maxx, maxx_)
maxy = max(maxy, maxy_)
except TypeError:
minx_, miny_, maxx_, maxy_ = bounds_rec(v['solid_geometry'])
minx = min(minx, minx_)
miny = min(miny, miny_)
maxx = max(maxx, maxx_)
maxy = max(maxy, maxy_)
bounds_coords = minx, miny, maxx, maxy
return bounds_coords
# TODO This function should be replaced at some point with a "real" function. Until then it's an ugly hack ...
def scale(self, xfactor, yfactor=None, point=None):
"""
Scales all the geometry on the XY plane in the object by the
given factor. Tool sizes, feedrates, or Z-axis dimensions are
not altered.
:param factor: Number by which to scale the object.
:type factor: float
:param point: the (x,y) coords for the point of origin of scale
:type tuple of floats
:return: None
:rtype: None
"""
log.debug("camlib.CNCJob.scale()")
if yfactor is None:
yfactor = xfactor
if point is None:
px = 0
py = 0
else:
px, py = point
def scale_g(g):
"""
:param g: 'g' parameter it's a gcode string
:return: scaled gcode string
"""
temp_gcode = ''
header_start = False
header_stop = False
units = self.app.defaults['units'].upper()
lines = StringIO(g)
for line in lines:
# this changes the GCODE header ---- UGLY HACK
if "TOOL DIAMETER" in line or "Feedrate:" in line:
header_start = True
if "G20" in line or "G21" in line:
header_start = False
header_stop = True
if header_start is True:
header_stop = False
if "in" in line:
if units == 'MM':
line = line.replace("in", "mm")
if "mm" in line:
if units == 'IN':
line = line.replace("mm", "in")
# find any float number in header (even multiple on the same line) and convert it
numbers_in_header = re.findall(self.g_nr_re, line)
if numbers_in_header:
for nr in numbers_in_header:
new_nr = float(nr) * xfactor
# replace the updated string
line = line.replace(nr, ('%.*f' % (self.app.defaults["cncjob_coords_decimals"], new_nr))
)
# this scales all the X and Y and Z and F values and also the Tool Dia in the toolchange message
if header_stop is True:
if "G20" in line:
if units == 'MM':
line = line.replace("G20", "G21")
if "G21" in line:
if units == 'IN':
line = line.replace("G21", "G20")
# find the X group
match_x = self.g_x_re.search(line)
if match_x:
if match_x.group(1) is not None:
new_x = float(match_x.group(1)[1:]) * xfactor
# replace the updated string
line = line.replace(
match_x.group(1),
'X%.*f' % (self.app.defaults["cncjob_coords_decimals"], new_x)
)
# find the Y group
match_y = self.g_y_re.search(line)
if match_y:
if match_y.group(1) is not None:
new_y = float(match_y.group(1)[1:]) * yfactor
line = line.replace(
match_y.group(1),
'Y%.*f' % (self.app.defaults["cncjob_coords_decimals"], new_y)
)
# find the Z group
match_z = self.g_z_re.search(line)
if match_z:
if match_z.group(1) is not None:
new_z = float(match_z.group(1)[1:]) * xfactor
line = line.replace(
match_z.group(1),
'Z%.*f' % (self.app.defaults["cncjob_coords_decimals"], new_z)
)
# find the F group
match_f = self.g_f_re.search(line)
if match_f:
if match_f.group(1) is not None:
new_f = float(match_f.group(1)[1:]) * xfactor
line = line.replace(
match_f.group(1),
'F%.*f' % (self.app.defaults["cncjob_fr_decimals"], new_f)
)
# find the T group (tool dia on toolchange)
match_t = self.g_t_re.search(line)
if match_t:
if match_t.group(1) is not None:
new_t = float(match_t.group(1)[1:]) * xfactor
line = line.replace(
match_t.group(1),
'= %.*f' % (self.app.defaults["cncjob_coords_decimals"], new_t)
)
temp_gcode += line
lines.close()
header_stop = False
return temp_gcode
if self.multitool is False:
# offset Gcode
self.gcode = scale_g(self.gcode)
# variables to display the percentage of work done
self.geo_len = 0
try:
self.geo_len = len(self.gcode_parsed)
except TypeError:
self.geo_len = 1
self.old_disp_number = 0
self.el_count = 0
# scale geometry
for g in self.gcode_parsed:
try:
g['geom'] = affinity.scale(g['geom'], xfactor, yfactor, origin=(px, py))
except AttributeError:
return g['geom']
self.el_count += 1
disp_number = int(np.interp(self.el_count, [0, self.geo_len], [0, 100]))
if self.old_disp_number < disp_number <= 100:
self.app.proc_container.update_view_text(' %d%%' % disp_number)
self.old_disp_number = disp_number
self.create_geometry()
else:
for k, v in self.cnc_tools.items():
# scale Gcode
v['gcode'] = scale_g(v['gcode'])
# variables to display the percentage of work done
self.geo_len = 0
try:
self.geo_len = len(v['gcode_parsed'])
except TypeError:
self.geo_len = 1
self.old_disp_number = 0
self.el_count = 0
# scale gcode_parsed
for g in v['gcode_parsed']:
try:
g['geom'] = affinity.scale(g['geom'], xfactor, yfactor, origin=(px, py))
except AttributeError:
return g['geom']
self.el_count += 1
disp_number = int(np.interp(self.el_count, [0, self.geo_len], [0, 100]))
if self.old_disp_number < disp_number <= 100:
self.app.proc_container.update_view_text(' %d%%' % disp_number)
self.old_disp_number = disp_number
v['solid_geometry'] = unary_union([geo['geom'] for geo in v['gcode_parsed']])
self.create_geometry()
self.app.proc_container.new_text = ''
def offset(self, vect):
"""
Offsets all the geometry on the XY plane in the object by the
given vector.
Offsets all the GCODE on the XY plane in the object by the
given vector.
g_offsetx_re, g_offsety_re, multitool, cnnc_tools are attributes of FlatCAMCNCJob class in camlib
:param vect: (x, y) offset vector.
:type vect: tuple
:return: None
"""
log.debug("camlib.CNCJob.offset()")
dx, dy = vect
def offset_g(g):
"""
:param g: 'g' parameter it's a gcode string
:return: offseted gcode string
"""
temp_gcode = ''
lines = StringIO(g)
for line in lines:
# find the X group
match_x = self.g_x_re.search(line)
if match_x:
if match_x.group(1) is not None:
# get the coordinate and add X offset
new_x = float(match_x.group(1)[1:]) + dx
# replace the updated string
line = line.replace(
match_x.group(1),
'X%.*f' % (self.app.defaults["cncjob_coords_decimals"], new_x)
)
match_y = self.g_y_re.search(line)
if match_y:
if match_y.group(1) is not None:
new_y = float(match_y.group(1)[1:]) + dy
line = line.replace(
match_y.group(1),
'Y%.*f' % (self.app.defaults["cncjob_coords_decimals"], new_y)
)
temp_gcode += line
lines.close()
return temp_gcode
if self.multitool is False:
# offset Gcode
self.gcode = offset_g(self.gcode)
# variables to display the percentage of work done
self.geo_len = 0
try:
self.geo_len = len(self.gcode_parsed)
except TypeError:
self.geo_len = 1
self.old_disp_number = 0
self.el_count = 0
# offset geometry
for g in self.gcode_parsed:
try:
g['geom'] = affinity.translate(g['geom'], xoff=dx, yoff=dy)
except AttributeError:
return g['geom']
self.el_count += 1
disp_number = int(np.interp(self.el_count, [0, self.geo_len], [0, 100]))
if self.old_disp_number < disp_number <= 100:
self.app.proc_container.update_view_text(' %d%%' % disp_number)
self.old_disp_number = disp_number
self.create_geometry()
else:
for k, v in self.cnc_tools.items():
# offset Gcode
v['gcode'] = offset_g(v['gcode'])
# variables to display the percentage of work done
self.geo_len = 0
try:
self.geo_len = len(v['gcode_parsed'])
except TypeError:
self.geo_len = 1
self.old_disp_number = 0
self.el_count = 0
# offset gcode_parsed
for g in v['gcode_parsed']:
try:
g['geom'] = affinity.translate(g['geom'], xoff=dx, yoff=dy)
except AttributeError:
return g['geom']
self.el_count += 1
disp_number = int(np.interp(self.el_count, [0, self.geo_len], [0, 100]))
if self.old_disp_number < disp_number <= 100:
self.app.proc_container.update_view_text(' %d%%' % disp_number)
self.old_disp_number = disp_number
# for the bounding box
v['solid_geometry'] = unary_union([geo['geom'] for geo in v['gcode_parsed']])
self.app.proc_container.new_text = ''
def mirror(self, axis, point):
"""
Mirror the geometry of an object by an given axis around the coordinates of the 'point'
:param axis: Axis for Mirror
:param point: tuple of coordinates (x,y). Point of origin for Mirror
:return:
"""
log.debug("camlib.CNCJob.mirror()")
px, py = point
xscale, yscale = {"X": (1.0, -1.0), "Y": (-1.0, 1.0)}[axis]
# variables to display the percentage of work done
self.geo_len = 0
try:
self.geo_len = len(self.gcode_parsed)
except TypeError:
self.geo_len = 1
self.old_disp_number = 0
self.el_count = 0
for g in self.gcode_parsed:
try:
g['geom'] = affinity.scale(g['geom'], xscale, yscale, origin=(px, py))
except AttributeError:
return g['geom']
self.el_count += 1
disp_number = int(np.interp(self.el_count, [0, self.geo_len], [0, 100]))
if self.old_disp_number < disp_number <= 100:
self.app.proc_container.update_view_text(' %d%%' % disp_number)
self.old_disp_number = disp_number
self.create_geometry()
self.app.proc_container.new_text = ''
def skew(self, angle_x, angle_y, point):
"""
Shear/Skew the geometries of an object by angles along x and y dimensions.
:param angle_x:
:param angle_y:
angle_x, angle_y : float, float
The shear angle(s) for the x and y axes respectively. These can be
specified in either degrees (default) or radians by setting
use_radians=True.
:param point: tupple of coordinates (x,y)
See shapely manual for more information: http://toblerity.org/shapely/manual.html#affine-transformations
"""
log.debug("camlib.CNCJob.skew()")
px, py = point
# variables to display the percentage of work done
self.geo_len = 0
try:
self.geo_len = len(self.gcode_parsed)
except TypeError:
self.geo_len = 1
self.old_disp_number = 0
self.el_count = 0
for g in self.gcode_parsed:
try:
g['geom'] = affinity.skew(g['geom'], angle_x, angle_y, origin=(px, py))
except AttributeError:
return g['geom']
self.el_count += 1
disp_number = int(np.interp(self.el_count, [0, self.geo_len], [0, 100]))
if self.old_disp_number < disp_number <= 100:
self.app.proc_container.update_view_text(' %d%%' % disp_number)
self.old_disp_number = disp_number
self.create_geometry()
self.app.proc_container.new_text = ''
def rotate(self, angle, point):
"""
Rotate the geometry of an object by an given angle around the coordinates of the 'point'
:param angle: Angle of Rotation
:param point: tuple of coordinates (x,y). Origin point for Rotation
:return:
"""
log.debug("camlib.CNCJob.rotate()")
px, py = point
# variables to display the percentage of work done
self.geo_len = 0
try:
self.geo_len = len(self.gcode_parsed)
except TypeError:
self.geo_len = 1
self.old_disp_number = 0
self.el_count = 0
for g in self.gcode_parsed:
try:
g['geom'] = affinity.rotate(g['geom'], angle, origin=(px, py))
except AttributeError:
return g['geom']
self.el_count += 1
disp_number = int(np.interp(self.el_count, [0, self.geo_len], [0, 100]))
if self.old_disp_number < disp_number <= 100:
self.app.proc_container.update_view_text(' %d%%' % disp_number)
self.old_disp_number = disp_number
self.create_geometry()
self.app.proc_container.new_text = ''
def get_bounds(geometry_list):
"""
Will return limit values for a list of geometries
:param geometry_list: List of geometries for which to calculate the bounds limits
:return:
"""
xmin = np.Inf
ymin = np.Inf
xmax = -np.Inf
ymax = -np.Inf
for gs in geometry_list:
try:
gxmin, gymin, gxmax, gymax = gs.bounds()
xmin = min([xmin, gxmin])
ymin = min([ymin, gymin])
xmax = max([xmax, gxmax])
ymax = max([ymax, gymax])
except Exception:
log.warning("DEVELOPMENT: Tried to get bounds of empty geometry.")
return [xmin, ymin, xmax, ymax]
def arc(center, radius, start, stop, direction, steps_per_circ):
"""
Creates a list of point along the specified arc.
:param center: Coordinates of the center [x, y]
:type center: list
:param radius: Radius of the arc.
:type radius: float
:param start: Starting angle in radians
:type start: float
:param stop: End angle in radians
:type stop: float
:param direction: Orientation of the arc, "CW" or "CCW"
:type direction: string
:param steps_per_circ: Number of straight line segments to
represent a circle.
:type steps_per_circ: int
:return: The desired arc, as list of tuples
:rtype: list
"""
# TODO: Resolution should be established by maximum error from the exact arc.
da_sign = {"cw": -1.0, "ccw": 1.0}
points = []
if direction == "ccw" and stop <= start:
stop += 2 * np.pi
if direction == "cw" and stop >= start:
stop -= 2 * np.pi
angle = abs(stop - start)
# angle = stop-start
steps = max([int(np.ceil(angle / (2 * np.pi) * steps_per_circ)), 2])
delta_angle = da_sign[direction] * angle * 1.0 / steps
for i in range(steps + 1):
theta = start + delta_angle * i
points.append((center[0] + radius * np.cos(theta), center[1] + radius * np.sin(theta)))
return points
def arc2(p1, p2, center, direction, steps_per_circ):
r = np.sqrt((center[0] - p1[0]) ** 2 + (center[1] - p1[1]) ** 2)
start = np.arctan2(p1[1] - center[1], p1[0] - center[0])
stop = np.arctan2(p2[1] - center[1], p2[0] - center[0])
return arc(center, r, start, stop, direction, steps_per_circ)
def arc_angle(start, stop, direction):
if direction == "ccw" and stop <= start:
stop += 2 * np.pi
if direction == "cw" and stop >= start:
stop -= 2 * np.pi
angle = abs(stop - start)
return angle
# def find_polygon(poly, point):
# """
# Find an object that object.contains(Point(point)) in
# poly, which can can be iterable, contain iterable of, or
# be itself an implementer of .contains().
#
# :param poly: See description
# :return: Polygon containing point or None.
# """
#
# if poly is None:
# return None
#
# try:
# for sub_poly in poly:
# p = find_polygon(sub_poly, point)
# if p is not None:
# return p
# except TypeError:
# try:
# if poly.contains(Point(point)):
# return poly
# except AttributeError:
# return None
#
# return None
def to_dict(obj):
"""
Makes the following types into serializable form:
* ApertureMacro
* BaseGeometry
:param obj: Shapely geometry.
:type obj: BaseGeometry
:return: Dictionary with serializable form if ``obj`` was
BaseGeometry or ApertureMacro, otherwise returns ``obj``.
"""
if isinstance(obj, ApertureMacro):
return {
"__class__": "ApertureMacro",
"__inst__": obj.to_dict()
}
if isinstance(obj, BaseGeometry):
return {
"__class__": "Shply",
"__inst__": sdumps(obj)
}
return obj
def dict2obj(d):
"""
Default deserializer.
:param d: Serializable dictionary representation of an object
to be reconstructed.
:return: Reconstructed object.
"""
if '__class__' in d and '__inst__' in d:
if d['__class__'] == "Shply":
return sloads(d['__inst__'])
if d['__class__'] == "ApertureMacro":
am = ApertureMacro()
am.from_dict(d['__inst__'])
return am
return d
else:
return d
# def plotg(geo, solid_poly=False, color="black"):
# try:
# __ = iter(geo)
# except:
# geo = [geo]
#
# for g in geo:
# if type(g) == Polygon:
# if solid_poly:
# patch = PolygonPatch(g,
# facecolor="#BBF268",
# edgecolor="#006E20",
# alpha=0.75,
# zorder=2)
# ax = subplot(111)
# ax.add_patch(patch)
# else:
# x, y = g.exterior.coords.xy
# plot(x, y, color=color)
# for ints in g.interiors:
# x, y = ints.coords.xy
# plot(x, y, color=color)
# continue
#
# if type(g) == LineString or type(g) == LinearRing:
# x, y = g.coords.xy
# plot(x, y, color=color)
# continue
#
# if type(g) == Point:
# x, y = g.coords.xy
# plot(x, y, 'o')
# continue
#
# try:
# __ = iter(g)
# plotg(g, color=color)
# except:
# log.error("Cannot plot: " + str(type(g)))
# continue
# def alpha_shape(points, alpha):
# """
# Compute the alpha shape (concave hull) of a set of points.
#
# @param points: Iterable container of points.
# @param alpha: alpha value to influence the gooeyness of the border. Smaller
# numbers don't fall inward as much as larger numbers. Too large,
# and you lose everything!
# """
# if len(points) < 4:
# # When you have a triangle, there is no sense in computing an alpha
# # shape.
# return MultiPoint(list(points)).convex_hull
#
# def add_edge(edges, edge_points, coords, i, j):
# """Add a line between the i-th and j-th points, if not in the list already"""
# if (i, j) in edges or (j, i) in edges:
# # already added
# return
# edges.add( (i, j) )
# edge_points.append(coords[ [i, j] ])
#
# coords = np.array([point.coords[0] for point in points])
#
# tri = Delaunay(coords)
# edges = set()
# edge_points = []
# # loop over triangles:
# # ia, ib, ic = indices of corner points of the triangle
# for ia, ib, ic in tri.vertices:
# pa = coords[ia]
# pb = coords[ib]
# pc = coords[ic]
#
# # Lengths of sides of triangle
# a = math.sqrt((pa[0]-pb[0])**2 + (pa[1]-pb[1])**2)
# b = math.sqrt((pb[0]-pc[0])**2 + (pb[1]-pc[1])**2)
# c = math.sqrt((pc[0]-pa[0])**2 + (pc[1]-pa[1])**2)
#
# # Semiperimeter of triangle
# s = (a + b + c)/2.0
#
# # Area of triangle by Heron's formula
# area = math.sqrt(s*(s-a)*(s-b)*(s-c))
# circum_r = a*b*c/(4.0*area)
#
# # Here's the radius filter.
# #print circum_r
# if circum_r < 1.0/alpha:
# add_edge(edges, edge_points, coords, ia, ib)
# add_edge(edges, edge_points, coords, ib, ic)
# add_edge(edges, edge_points, coords, ic, ia)
#
# m = MultiLineString(edge_points)
# triangles = list(polygonize(m))
# return unary_union(triangles), edge_points
# def voronoi(P):
# """
# Returns a list of all edges of the voronoi diagram for the given input points.
# """
# delauny = Delaunay(P)
# triangles = delauny.points[delauny.vertices]
#
# circum_centers = np.array([triangle_csc(tri) for tri in triangles])
# long_lines_endpoints = []
#
# lineIndices = []
# for i, triangle in enumerate(triangles):
# circum_center = circum_centers[i]
# for j, neighbor in enumerate(delauny.neighbors[i]):
# if neighbor != -1:
# lineIndices.append((i, neighbor))
# else:
# ps = triangle[(j+1)%3] - triangle[(j-1)%3]
# ps = np.array((ps[1], -ps[0]))
#
# middle = (triangle[(j+1)%3] + triangle[(j-1)%3]) * 0.5
# di = middle - triangle[j]
#
# ps /= np.linalg.norm(ps)
# di /= np.linalg.norm(di)
#
# if np.dot(di, ps) < 0.0:
# ps *= -1000.0
# else:
# ps *= 1000.0
#
# long_lines_endpoints.append(circum_center + ps)
# lineIndices.append((i, len(circum_centers) + len(long_lines_endpoints)-1))
#
# vertices = np.vstack((circum_centers, long_lines_endpoints))
#
# # filter out any duplicate lines
# lineIndicesSorted = np.sort(lineIndices) # make (1,2) and (2,1) both (1,2)
# lineIndicesTupled = [tuple(row) for row in lineIndicesSorted]
# lineIndicesUnique = np.unique(lineIndicesTupled)
#
# return vertices, lineIndicesUnique
#
#
# def triangle_csc(pts):
# rows, cols = pts.shape
#
# A = np.bmat([[2 * np.dot(pts, pts.T), np.ones((rows, 1))],
# [np.ones((1, rows)), np.zeros((1, 1))]])
#
# b = np.hstack((np.sum(pts * pts, axis=1), np.ones((1))))
# x = np.linalg.solve(A,b)
# bary_coords = x[:-1]
# return np.sum(pts * np.tile(bary_coords.reshape((pts.shape[0], 1)), (1, pts.shape[1])), axis=0)
#
#
# def voronoi_cell_lines(points, vertices, lineIndices):
# """
# Returns a mapping from a voronoi cell to its edges.
#
# :param points: shape (m,2)
# :param vertices: shape (n,2)
# :param lineIndices: shape (o,2)
# :rtype: dict point index -> list of shape (n,2) with vertex indices
# """
# kd = KDTree(points)
#
# cells = collections.defaultdict(list)
# for i1, i2 in lineIndices:
# v1, v2 = vertices[i1], vertices[i2]
# mid = (v1+v2)/2
# _, (p1Idx, p2Idx) = kd.query(mid, 2)
# cells[p1Idx].append((i1, i2))
# cells[p2Idx].append((i1, i2))
#
# return cells
#
#
# def voronoi_edges2polygons(cells):
# """
# Transforms cell edges into polygons.
#
# :param cells: as returned from voronoi_cell_lines
# :rtype: dict point index -> list of vertex indices which form a polygon
# """
#
# # first, close the outer cells
# for pIdx, lineIndices_ in cells.items():
# dangling_lines = []
# for i1, i2 in lineIndices_:
# p = (i1, i2)
# connections = filter(lambda k: p != k and
# (p[0] == k[0] or p[0] == k[1] or p[1] == k[0] or p[1] == k[1]), lineIndices_)
# # connections = filter(lambda (i1_, i2_): (i1, i2) != (i1_, i2_) and
# (i1 == i1_ or i1 == i2_ or i2 == i1_ or i2 == i2_), lineIndices_)
# assert 1 <= len(connections) <= 2
# if len(connections) == 1:
# dangling_lines.append((i1, i2))
# assert len(dangling_lines) in [0, 2]
# if len(dangling_lines) == 2:
# (i11, i12), (i21, i22) = dangling_lines
# s = (i11, i12)
# t = (i21, i22)
#
# # determine which line ends are unconnected
# connected = filter(lambda k: k != s and (k[0] == s[0] or k[1] == s[0]), lineIndices_)
# # connected = filter(lambda (i1,i2): (i1,i2) != (i11,i12) and (i1 == i11 or i2 == i11), lineIndices_)
# i11Unconnected = len(connected) == 0
#
# connected = filter(lambda k: k != t and (k[0] == t[0] or k[1] == t[0]), lineIndices_)
# # connected = filter(lambda (i1,i2): (i1,i2) != (i21,i22) and (i1 == i21 or i2 == i21), lineIndices_)
# i21Unconnected = len(connected) == 0
#
# startIdx = i11 if i11Unconnected else i12
# endIdx = i21 if i21Unconnected else i22
#
# cells[pIdx].append((startIdx, endIdx))
#
# # then, form polygons by storing vertex indices in (counter-)clockwise order
# polys = {}
# for pIdx, lineIndices_ in cells.items():
# # get a directed graph which contains both directions and arbitrarily follow one of both
# directedGraph = lineIndices_ + [(i2, i1) for (i1, i2) in lineIndices_]
# directedGraphMap = collections.defaultdict(list)
# for (i1, i2) in directedGraph:
# directedGraphMap[i1].append(i2)
# orderedEdges = []
# currentEdge = directedGraph[0]
# while len(orderedEdges) < len(lineIndices_):
# i1 = currentEdge[1]
# i2 = directedGraphMap[i1][0] if directedGraphMap[i1][0] != currentEdge[0] else directedGraphMap[i1][1]
# nextEdge = (i1, i2)
# orderedEdges.append(nextEdge)
# currentEdge = nextEdge
#
# polys[pIdx] = [i1 for (i1, i2) in orderedEdges]
#
# return polys
#
#
# def voronoi_polygons(points):
# """
# Returns the voronoi polygon for each input point.
#
# :param points: shape (n,2)
# :rtype: list of n polygons where each polygon is an array of vertices
# """
# vertices, lineIndices = voronoi(points)
# cells = voronoi_cell_lines(points, vertices, lineIndices)
# polys = voronoi_edges2polygons(cells)
# polylist = []
# for i in range(len(points)):
# poly = vertices[np.asarray(polys[i])]
# polylist.append(poly)
# return polylist
#
#
# class Zprofile:
# def __init__(self):
#
# # data contains lists of [x, y, z]
# self.data = []
#
# # Computed voronoi polygons (shapely)
# self.polygons = []
# pass
#
# # def plot_polygons(self):
# # axes = plt.subplot(1, 1, 1)
# #
# # plt.axis([-0.05, 1.05, -0.05, 1.05])
# #
# # for poly in self.polygons:
# # p = PolygonPatch(poly, facecolor=np.random.rand(3, 1), alpha=0.3)
# # axes.add_patch(p)
#
# def init_from_csv(self, filename):
# pass
#
# def init_from_string(self, zpstring):
# pass
#
# def init_from_list(self, zplist):
# self.data = zplist
#
# def generate_polygons(self):
# self.polygons = [Polygon(p) for p in voronoi_polygons(array([[x[0], x[1]] for x in self.data]))]
#
# def normalize(self, origin):
# pass
#
# def paste(self, path):
# """
# Return a list of dictionaries containing the parts of the original
# path and their z-axis offset.
# """
#
# # At most one region/polygon will contain the path
# containing = [i for i in range(len(self.polygons)) if self.polygons[i].contains(path)]
#
# if len(containing) > 0:
# return [{"path": path, "z": self.data[containing[0]][2]}]
#
# # All region indexes that intersect with the path
# crossing = [i for i in range(len(self.polygons)) if self.polygons[i].intersects(path)]
#
# return [{"path": path.intersection(self.polygons[i]),
# "z": self.data[i][2]} for i in crossing]
def autolist(obj):
try:
__ = iter(obj)
return obj
except TypeError:
return [obj]
def three_point_circle(p1, p2, p3):
"""
Computes the center and radius of a circle from
3 points on its circumference.
:param p1: Point 1
:param p2: Point 2
:param p3: Point 3
:return: center, radius
"""
# Midpoints
a1 = (p1 + p2) / 2.0
a2 = (p2 + p3) / 2.0
# Normals
b1 = np.dot((p2 - p1), np.array([[0, -1], [1, 0]], dtype=np.float32))
b2 = np.dot((p3 - p2), np.array([[0, 1], [-1, 0]], dtype=np.float32))
# Params
try:
T = solve(np.transpose(np.array([-b1, b2])), a1 - a2)
except Exception as e:
log.debug("camlib.three_point_circle() --> %s" % str(e))
return
# Center
center = a1 + b1 * T[0]
# Radius
radius = np.linalg.norm(center - p1)
return center, radius, T[0]
def distance(pt1, pt2):
return np.sqrt((pt1[0] - pt2[0]) ** 2 + (pt1[1] - pt2[1]) ** 2)
def distance_euclidian(x1, y1, x2, y2):
return np.sqrt((x1 - x2) ** 2 + (y1 - y2) ** 2)
class FlatCAMRTree(object):
"""
Indexes geometry (Any object with "cooords" property containing
a list of tuples with x, y values). Objects are indexed by
all their points by default. To index by arbitrary points,
override self.points2obj.
"""
def __init__(self):
# Python RTree Index
self.rti = rtindex.Index()
# ## Track object-point relationship
# Each is list of points in object.
self.obj2points = []
# Index is index in rtree, value is index of
# object in obj2points.
self.points2obj = []
self.get_points = lambda go: go.coords
def grow_obj2points(self, idx):
"""
Increases the size of self.obj2points to fit
idx + 1 items.
:param idx: Index to fit into list.
:return: None
"""
if len(self.obj2points) > idx:
# len == 2, idx == 1, ok.
return
else:
# len == 2, idx == 2, need 1 more.
# range(2, 3)
for i in range(len(self.obj2points), idx + 1):
self.obj2points.append([])
def insert(self, objid, obj):
self.grow_obj2points(objid)
self.obj2points[objid] = []
for pt in self.get_points(obj):
self.rti.insert(len(self.points2obj), (pt[0], pt[1], pt[0], pt[1]), obj=objid)
self.obj2points[objid].append(len(self.points2obj))
self.points2obj.append(objid)
def remove_obj(self, objid, obj):
# Use all ptids to delete from index
for i, pt in enumerate(self.get_points(obj)):
try:
self.rti.delete(self.obj2points[objid][i], (pt[0], pt[1], pt[0], pt[1]))
except IndexError:
pass
def nearest(self, pt):
"""
Will raise StopIteration if no items are found.
:param pt:
:return:
"""
return next(self.rti.nearest(pt, objects=True))
def intersection(self, pt):
"""
Will raise StopIteration if no items are found.
:param pt:
:return:
"""
return next(self.rti.intersection(pt, objects=True))
class FlatCAMRTreeStorage(FlatCAMRTree):
"""
Just like FlatCAMRTree it indexes geometry, but also serves
as storage for the geometry.
"""
def __init__(self):
# super(FlatCAMRTreeStorage, self).__init__()
super().__init__()
self.objects = []
# Optimization attempt!
self.indexes = {}
def insert(self, obj):
self.objects.append(obj)
idx = len(self.objects) - 1
# Note: Shapely objects are not hashable any more, although
# there seem to be plans to re-introduce the feature in
# version 2.0. For now, we will index using the object's id,
# but it's important to remember that shapely geometry is
# mutable, ie. it can be modified to a totally different shape
# and continue to have the same id.
# self.indexes[obj] = idx
self.indexes[id(obj)] = idx
# super(FlatCAMRTreeStorage, self).insert(idx, obj)
super().insert(idx, obj)
# @profile
def remove(self, obj):
# See note about self.indexes in insert().
# objidx = self.indexes[obj]
objidx = self.indexes[id(obj)]
# Remove from list
self.objects[objidx] = None
# Remove from index
self.remove_obj(objidx, obj)
def get_objects(self):
return (o for o in self.objects if o is not None)
def nearest(self, pt):
"""
Returns the nearest matching points and the object
it belongs to.
:param pt: Query point.
:return: (match_x, match_y), Object owner of
matching point.
:rtype: tuple
"""
tidx = super(FlatCAMRTreeStorage, self).nearest(pt)
return (tidx.bbox[0], tidx.bbox[1]), self.objects[tidx.object]
# class myO:
# def __init__(self, coords):
# self.coords = coords
#
#
# def test_rti():
#
# o1 = myO([(0, 0), (0, 1), (1, 1)])
# o2 = myO([(2, 0), (2, 1), (2, 1)])
# o3 = myO([(2, 0), (2, 1), (3, 1)])
#
# os = [o1, o2]
#
# idx = FlatCAMRTree()
#
# for o in range(len(os)):
# idx.insert(o, os[o])
#
# print [x.bbox for x in idx.rti.nearest((0, 0), num_results=20, objects=True)]
#
# idx.remove_obj(0, o1)
#
# print [x.bbox for x in idx.rti.nearest((0, 0), num_results=20, objects=True)]
#
# idx.remove_obj(1, o2)
#
# print [x.bbox for x in idx.rti.nearest((0, 0), num_results=20, objects=True)]
#
#
# def test_rtis():
#
# o1 = myO([(0, 0), (0, 1), (1, 1)])
# o2 = myO([(2, 0), (2, 1), (2, 1)])
# o3 = myO([(2, 0), (2, 1), (3, 1)])
#
# os = [o1, o2]
#
# idx = FlatCAMRTreeStorage()
#
# for o in range(len(os)):
# idx.insert(os[o])
#
# #os = None
# #o1 = None
# #o2 = None
#
# print [x.bbox for x in idx.rti.nearest((0, 0), num_results=20, objects=True)]
#
# idx.remove(idx.nearest((2,0))[1])
#
# print [x.bbox for x in idx.rti.nearest((0, 0), num_results=20, objects=True)]
#
# idx.remove(idx.nearest((0,0))[1])
#
# print [x.bbox for x in idx.rti.nearest((0, 0), num_results=20, objects=True)]