229 lines
8.3 KiB
Python
229 lines
8.3 KiB
Python
############################################################
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# FlatCAM: 2D Post-processing for Manufacturing #
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# http://caram.cl/software/flatcam #
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# Author: Juan Pablo Caram (c) #
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# Date: 2/5/2014 #
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# MIT Licence #
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############################################################
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from PyQt5 import QtCore
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import logging
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from VisPyCanvas import VisPyCanvas
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from VisPyVisuals import ShapeGroup, ShapeCollection, TextCollection, TextGroup, Cursor
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from vispy.scene.visuals import InfiniteLine, Line
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import numpy as np
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from vispy.geometry import Rect
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import time
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log = logging.getLogger('base')
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class PlotCanvas(QtCore.QObject):
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"""
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Class handling the plotting area in the application.
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"""
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def __init__(self, container, app):
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"""
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The constructor configures the VisPy figure that
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will contain all plots, creates the base axes and connects
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events to the plotting area.
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:param container: The parent container in which to draw plots.
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:rtype: PlotCanvas
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"""
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super(PlotCanvas, self).__init__()
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self.app = app
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# Parent container
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self.container = container
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# workspace lines; I didn't use the rectangle because I didn't want to add another VisPy Node,
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# which might decrease performance
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self.b_line, self.r_line, self.t_line, self.l_line = None, None, None, None
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# Attach to parent
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self.vispy_canvas = VisPyCanvas()
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self.vispy_canvas.create_native()
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self.vispy_canvas.native.setParent(self.app.ui)
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self.container.addWidget(self.vispy_canvas.native)
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### AXIS ###
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self.v_line = InfiniteLine(pos=0, color=(0.70, 0.3, 0.3, 1.0), vertical=True,
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parent=self.vispy_canvas.view.scene)
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self.h_line = InfiniteLine(pos=0, color=(0.70, 0.3, 0.3, 1.0), vertical=False,
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parent=self.vispy_canvas.view.scene)
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# draw a rectangle made out of 4 lines on the canvas to serve as a hint for the work area
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# all CNC have a limited workspace
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self.draw_workspace()
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# if self.app.defaults['global_workspace'] is True:
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# if self.app.general_options_form.general_group.units_radio.get_value().upper() == 'MM':
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# self.wkspace_t = Line(pos=)
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self.shape_collections = []
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self.shape_collection = self.new_shape_collection()
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self.app.pool_recreated.connect(self.on_pool_recreated)
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self.text_collection = self.new_text_collection()
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# TODO: Should be setting to show/hide CNC job annotations (global or per object)
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self.text_collection.enabled = False
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# draw a rectangle made out of 4 lines on the canvas to serve as a hint for the work area
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# all CNC have a limited workspace
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def draw_workspace(self):
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a = np.empty((0, 0))
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a4p_in = np.array([(0, 0), (8.3, 0), (8.3, 11.7), (0, 11.7)])
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a4l_in = np.array([(0, 0), (11.7, 0), (11.7, 8.3), (0, 8.3)])
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a3p_in = np.array([(0, 0), (11.7, 0), (11.7, 16.5), (0, 16.5)])
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a3l_in = np.array([(0, 0), (16.5, 0), (16.5, 11.7), (0, 11.7)])
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a4p_mm = np.array([(0, 0), (210, 0), (210, 297), (0, 297)])
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a4l_mm = np.array([(0, 0), (297, 0), (297,210), (0, 210)])
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a3p_mm = np.array([(0, 0), (297, 0), (297, 420), (0, 420)])
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a3l_mm = np.array([(0, 0), (420, 0), (420, 297), (0, 297)])
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if self.app.general_options_form.general_group.units_radio.get_value().upper() == 'MM':
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if self.app.defaults['global_workspaceT'] == 'A4P':
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a = a4p_mm
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elif self.app.defaults['global_workspaceT'] == 'A4L':
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a = a4l_mm
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elif self.app.defaults['global_workspaceT'] == 'A3P':
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a = a3p_mm
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elif self.app.defaults['global_workspaceT'] == 'A3L':
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a = a3l_mm
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else:
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if self.app.defaults['global_workspaceT'] == 'A4P':
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a = a4p_in
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elif self.app.defaults['global_workspaceT'] == 'A4L':
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a = a4l_in
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elif self.app.defaults['global_workspaceT'] == 'A3P':
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a = a3p_in
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elif self.app.defaults['global_workspaceT'] == 'A3L':
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a = a3l_in
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self.delete_workspace()
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self.b_line = Line(pos=a[0:2], color=(0.70, 0.3, 0.3, 1.0),
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antialias= True, method='agg', parent=self.vispy_canvas.view.scene)
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self.r_line = Line(pos=a[1:3], color=(0.70, 0.3, 0.3, 1.0),
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antialias= True, method='agg', parent=self.vispy_canvas.view.scene)
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self.t_line = Line(pos=a[2:4], color=(0.70, 0.3, 0.3, 1.0),
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antialias= True, method='agg', parent=self.vispy_canvas.view.scene)
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self.l_line = Line(pos=np.array((a[0], a[3])), color=(0.70, 0.3, 0.3, 1.0),
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antialias= True, method='agg', parent=self.vispy_canvas.view.scene)
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if self.app.defaults['global_workspace'] is False:
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self.delete_workspace()
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# delete the workspace lines from the plot by removing the parent
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def delete_workspace(self):
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try:
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self.b_line.parent = None
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self.r_line.parent = None
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self.t_line.parent = None
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self.l_line.parent = None
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except:
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pass
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# redraw the workspace lines on the plot by readding them to the parent view.scene
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def restore_workspace(self):
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try:
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self.b_line.parent = self.vispy_canvas.view.scene
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self.r_line.parent = self.vispy_canvas.view.scene
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self.t_line.parent = self.vispy_canvas.view.scene
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self.l_line.parent = self.vispy_canvas.view.scene
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except:
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pass
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def vis_connect(self, event_name, callback):
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return getattr(self.vispy_canvas.events, event_name).connect(callback)
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def vis_disconnect(self, event_name, callback):
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getattr(self.vispy_canvas.events, event_name).disconnect(callback)
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def zoom(self, factor, center=None):
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"""
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Zooms the plot by factor around a given
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center point. Takes care of re-drawing.
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:param factor: Number by which to scale the plot.
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:type factor: float
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:param center: Coordinates [x, y] of the point around which to scale the plot.
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:type center: list
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:return: None
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"""
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self.vispy_canvas.view.camera.zoom(factor, center)
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def new_shape_group(self):
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return ShapeGroup(self.shape_collection)
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def new_shape_collection(self, **kwargs):
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# sc = ShapeCollection(parent=self.vispy_canvas.view.scene, pool=self.app.pool, **kwargs)
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# self.shape_collections.append(sc)
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# return sc
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return ShapeCollection(parent=self.vispy_canvas.view.scene, pool=self.app.pool, **kwargs)
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def new_cursor(self):
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c = Cursor(pos=np.empty((0, 2)), parent=self.vispy_canvas.view.scene)
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c.antialias = 0
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return c
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def new_text_group(self):
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return TextGroup(self.text_collection)
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def new_text_collection(self, **kwargs):
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return TextCollection(parent=self.vispy_canvas.view.scene, **kwargs)
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def fit_view(self, rect=None):
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# Lock updates in other threads
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self.shape_collection.lock_updates()
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if not rect:
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rect = Rect(-1, -1, 20, 20)
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try:
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rect.left, rect.right = self.shape_collection.bounds(axis=0)
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rect.bottom, rect.top = self.shape_collection.bounds(axis=1)
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except TypeError:
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pass
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self.vispy_canvas.view.camera.rect = rect
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self.shape_collection.unlock_updates()
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def fit_center(self, loc, rect=None):
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# Lock updates in other threads
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self.shape_collection.lock_updates()
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if not rect:
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try:
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rect = Rect(loc[0]-20, loc[1]-20, 40, 40)
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except TypeError:
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pass
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self.vispy_canvas.view.camera.rect = rect
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self.shape_collection.unlock_updates()
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def clear(self):
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pass
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def redraw(self):
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self.shape_collection.redraw([])
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self.text_collection.redraw()
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def on_pool_recreated(self, pool):
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self.shape_collection.pool = pool
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