63 lines
2.0 KiB
Python
63 lines
2.0 KiB
Python
from ObjectCollection import *
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from tclCommands.TclCommand import TclCommandSignaled
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class TclCommandSubtractPoly(TclCommandSignaled):
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"""
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Tcl shell command to create a new empty Geometry object.
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"""
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# array of all command aliases, to be able use old names for backward compatibility (add_poly, add_polygon)
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aliases = ['subtract_poly']
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# Dictionary of types from Tcl command, needs to be ordered.
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# For positional arguments
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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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# For options like -optionname value
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option_types = collections.OrderedDict([
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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': "Subtract polygon from the given Geometry object.",
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'args': collections.OrderedDict([
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('name', 'Name of the Geometry object from which to subtract.'),
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('x0 y0 x1 y1 x2 y2 ...', 'Points defining the polygon.')
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]),
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'examples': []
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}
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def execute(self, args, unnamed_args):
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"""
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execute current TCL shell command
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:param args: array of known named arguments and options
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:param unnamed_args: array of other values which were passed into command
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without -somename and we do not have them in known arg_names
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:return: None or exception
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"""
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obj_name = args['name']
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if len(unnamed_args) % 2 != 0:
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return "Incomplete coordinate."
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points = [[float(unnamed_args[2 * i]), float(unnamed_args[2 * i + 1])] for i in range(len(unnamed_args) / 2)]
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try:
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obj = self.app.collection.get_by_name(str(obj_name))
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except:
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return "Could not retrieve object: %s" % obj_name
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if obj is None:
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return "Object not found: %s" % obj_name
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obj.subtract_polygon(points)
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