283 lines
11 KiB
Python
283 lines
11 KiB
Python
from ObjectCollection import *
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from tclCommands.TclCommand import TclCommandSignaled
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from copy import deepcopy
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class TclCommandGeoCutout(TclCommandSignaled):
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"""
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Tcl shell command to create a board cutout geometry. Allow cutout for any shape. Cuts holding gaps from geometry.
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example:
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"""
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# List of all command aliases, to be able use old
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# names for backward compatibility (add_poly, add_polygon)
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aliases = ['geocutout', 'geoc']
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# Dictionary of types from Tcl command, needs to be ordered
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arg_names = collections.OrderedDict([
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('name', str),
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])
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# Dictionary of types from Tcl command, needs to be ordered,
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# this is for options like -optionname value
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option_types = collections.OrderedDict([
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('dia', float),
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('margin', float),
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('gapsize', float),
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('gaps', str)
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])
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# array of mandatory options for current Tcl command: required = {'name','outname'}
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required = ['name']
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# structured help for current command, args needs to be ordered
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help = {
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'main': 'Creates board cutout from an object (Gerber or Geometry) of any shape',
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'args': collections.OrderedDict([
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('name', 'Name of the object.'),
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('dia', 'Tool diameter.'),
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('margin', 'Margin over bounds.'),
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('gapsize', 'size of gap.'),
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('gaps', "type of gaps. Can be: 'tb' = top-bottom, 'lr' = left-right, '2tb' = 2top-2bottom, "
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"'2lr' = 2left-2right, '4' = 4 cuts, '8' = 8 cuts")
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]),
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'examples': [" #isolate margin for example from fritzing arduino shield or any svg etc\n" +
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" isolate BCu_margin -dia 3 -overlap 1\n" +
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"\n" +
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" #create exteriors from isolated object\n" +
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" exteriors BCu_margin_iso -outname BCu_margin_iso_exterior\n" +
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"\n" +
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" #delete isolated object if you dond need id anymore\n" +
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" delete BCu_margin_iso\n" +
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"\n" +
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" #finally cut holding gaps\n" +
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" geocutout BCu_margin_iso_exterior -dia 3 -gapsize 0.6 -gaps 4\n"]
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}
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flat_geometry = []
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def execute(self, args, unnamed_args):
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"""
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:param args:
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:param unnamed_args:
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:return:
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"""
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def subtract_rectangle(obj_, x0, y0, x1, y1):
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pts = [(x0, y0), (x1, y0), (x1, y1), (x0, y1)]
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obj_.subtract_polygon(pts)
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def substract_rectangle_geo(geo, x0, y0, x1, y1):
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pts = [(x0, y0), (x1, y0), (x1, y1), (x0, y1)]
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def flatten(geometry=None, reset=True, pathonly=False):
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"""
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Creates a list of non-iterable linear geometry objects.
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Polygons are expanded into its exterior and interiors if specified.
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Results are placed in flat_geometry
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:param geometry: Shapely type or list or list of list of such.
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:param reset: Clears the contents of self.flat_geometry.
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:param pathonly: Expands polygons into linear elements.
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"""
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if reset:
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self.flat_geometry = []
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## If iterable, expand recursively.
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try:
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for geo in geometry:
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if geo is not None:
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flatten(geometry=geo,
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reset=False,
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pathonly=pathonly)
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## Not iterable, do the actual indexing and add.
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except TypeError:
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if pathonly and type(geometry) == Polygon:
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self.flat_geometry.append(geometry.exterior)
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flatten(geometry=geometry.interiors,
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reset=False,
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pathonly=True)
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else:
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self.flat_geometry.append(geometry)
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return self.flat_geometry
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flat_geometry = flatten(geo, pathonly=True)
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polygon = Polygon(pts)
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toolgeo = cascaded_union(polygon)
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diffs = []
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for target in flat_geometry:
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if type(target) == LineString or type(target) == LinearRing:
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diffs.append(target.difference(toolgeo))
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else:
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log.warning("Not implemented.")
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return cascaded_union(diffs)
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if 'name' in args:
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name = args['name']
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else:
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self.app.inform.emit(
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"[WARNING]The name of the object for which cutout is done is missing. Add it and retry.")
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return
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if 'margin' in args:
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margin = args['margin']
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else:
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margin = 0.001
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if 'dia' in args:
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dia = args['dia']
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else:
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dia = 0.1
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if 'gaps' in args:
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gaps = args['gaps']
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else:
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gaps = 4
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if 'gapsize' in args:
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gapsize = args['gapsize']
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else:
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gapsize = 0.1
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# Get source object.
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try:
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cutout_obj = self.app.collection.get_by_name(str(name))
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except:
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return "Could not retrieve object: %s" % name
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if 0 in {dia}:
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self.app.inform.emit("[WARNING]Tool Diameter is zero value. Change it to a positive integer.")
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return "Tool Diameter is zero value. Change it to a positive integer."
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if gaps not in ['lr', 'tb', '2lr', '2tb', 4, 8]:
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self.app.inform.emit("[WARNING]Gaps value can be only one of: 'lr', 'tb', '2lr', '2tb', 4 or 8. "
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"Fill in a correct value and retry. ")
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return
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# Get min and max data for each object as we just cut rectangles across X or Y
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xmin, ymin, xmax, ymax = cutout_obj.bounds()
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px = 0.5 * (xmin + xmax) + margin
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py = 0.5 * (ymin + ymax) + margin
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lenghtx = (xmax - xmin) + (margin * 2)
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lenghty = (ymax - ymin) + (margin * 2)
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gapsize = gapsize / 2 + (dia / 2)
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try:
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gaps_u = int(gaps)
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except ValueError:
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gaps_u = gaps
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if isinstance(cutout_obj, FlatCAMGeometry):
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# rename the obj name so it can be identified as cutout
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cutout_obj.options["name"] += "_cutout"
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if gaps_u == 8 or gaps_u == '2lr':
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subtract_rectangle(cutout_obj,
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xmin - gapsize, # botleft_x
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py - gapsize + lenghty / 4, # botleft_y
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xmax + gapsize, # topright_x
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py + gapsize + lenghty / 4) # topright_y
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subtract_rectangle(cutout_obj,
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xmin - gapsize,
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py - gapsize - lenghty / 4,
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xmax + gapsize,
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py + gapsize - lenghty / 4)
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if gaps_u == 8 or gaps_u == '2tb':
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subtract_rectangle(cutout_obj,
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px - gapsize + lenghtx / 4,
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ymin - gapsize,
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px + gapsize + lenghtx / 4,
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ymax + gapsize)
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subtract_rectangle(cutout_obj,
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px - gapsize - lenghtx / 4,
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ymin - gapsize,
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px + gapsize - lenghtx / 4,
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ymax + gapsize)
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if gaps_u == 4 or gaps_u == 'lr':
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subtract_rectangle(cutout_obj,
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xmin - gapsize,
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py - gapsize,
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xmax + gapsize,
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py + gapsize)
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if gaps_u == 4 or gaps_u == 'tb':
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subtract_rectangle(cutout_obj,
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px - gapsize,
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ymin - gapsize,
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px + gapsize,
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ymax + gapsize)
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cutout_obj.plot()
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self.app.inform.emit("[success]Any-form Cutout operation finished.")
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elif isinstance(cutout_obj, FlatCAMGerber):
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def geo_init(geo_obj, app_obj):
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try:
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geo = cutout_obj.isolation_geometry((dia / 2), iso_type=0, corner=2)
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except Exception as e:
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log.debug("TclCommandGeoCutout.execute() --> %s" % str(e))
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return 'fail'
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if gaps_u == 8 or gaps_u == '2lr':
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geo = substract_rectangle_geo(geo,
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xmin - gapsize, # botleft_x
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py - gapsize + lenghty / 4, # botleft_y
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xmax + gapsize, # topright_x
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py + gapsize + lenghty / 4) # topright_y
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geo = substract_rectangle_geo(geo,
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xmin - gapsize,
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py - gapsize - lenghty / 4,
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xmax + gapsize,
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py + gapsize - lenghty / 4)
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if gaps_u == 8 or gaps_u == '2tb':
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geo = substract_rectangle_geo(geo,
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px - gapsize + lenghtx / 4,
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ymin - gapsize,
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px + gapsize + lenghtx / 4,
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ymax + gapsize)
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geo = substract_rectangle_geo(geo,
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px - gapsize - lenghtx / 4,
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ymin - gapsize,
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px + gapsize - lenghtx / 4,
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ymax + gapsize)
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if gaps_u == 4 or gaps_u == 'lr':
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geo = substract_rectangle_geo(geo,
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xmin - gapsize,
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py - gapsize,
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xmax + gapsize,
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py + gapsize)
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if gaps_u == 4 or gaps_u == 'tb':
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geo = substract_rectangle_geo(geo,
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px - gapsize,
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ymin - gapsize,
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px + gapsize,
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ymax + gapsize)
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geo_obj.solid_geometry = geo
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outname = cutout_obj.options["name"] + "_cutout"
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self.app.new_object('geometry', outname, geo_init)
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cutout_obj = self.app.collection.get_by_name(outname)
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else:
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self.app.inform.emit("[ERROR]Cancelled. Object type is not supported.")
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return
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