105 lines
3.9 KiB
Python
105 lines
3.9 KiB
Python
from ObjectCollection import *
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from tclCommands.TclCommand import TclCommand
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class TclCommandScale(TclCommand):
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"""
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Tcl shell command to resizes the object by a factor.
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example:
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scale my_geometry 4.2
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"""
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# List of all command aliases, to be able use old names for backward compatibility (add_poly, add_polygon)
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aliases = ['scale']
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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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('factor', float)
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])
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# Dictionary of types from Tcl command, needs to be ordered , this is for options like -optionname value
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option_types = collections.OrderedDict([
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('x', float),
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('y', float),
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('origin', 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': "Resizes the object by a factor on X axis and a factor on Y axis, having as scale origin the point ",
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'args': collections.OrderedDict([
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('name', 'Name of the object to resize.'),
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('factor', 'Fraction by which to scale on both axis. '),
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('x', 'Fraction by which to scale on X axis. If "factor" is used then this parameter is ignored'),
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('y', 'Fraction by which to scale on Y axis. If "factor" is used then this parameter is ignored'),
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('origin', 'Reference used for scale. It can be: "origin" which means point (0, 0) or "min_bounds" which '
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'means the lower left point of the bounding box or it can be "center" which means the center '
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'of the bounding box.')
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]),
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'examples': ['scale my_geometry 4.2',
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'scale my_geo -x 3.1 -y 2.8',
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'scale my_geo 1.2 -origin min_bounds']
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}
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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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name = args['name']
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try:
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obj_to_scale = self.app.collection.get_by_name(name)
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except Exception as e:
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log.debug("TclCommandCopperClear.execute() --> %s" % str(e))
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self.raise_tcl_error("%s: %s" % (_("Could not retrieve box object"), name))
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return "Could not retrieve object: %s" % name
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if 'origin' not in args:
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xmin, ymin, xmax, ymax = obj_to_scale.bounds()
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c_x = xmin + (xmax - xmin) / 2
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c_y = ymin + (ymax - ymin) / 2
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point = (c_x, c_y)
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else:
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if args['origin'] == 'origin':
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point = (0, 0)
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elif args['origin'] == 'min_bounds':
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xmin, ymin, xmax, ymax = obj_to_scale.bounds()
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point = (xmin, ymin)
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elif args['origin'] == 'center':
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xmin, ymin, xmax, ymax = obj_to_scale.bounds()
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c_x = xmin + (xmax - xmin) / 2
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c_y = ymin + (ymax - ymin) / 2
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point = (c_x, c_y)
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else:
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self.raise_tcl_error('%s' % _("Expected -origin <origin> or -origin <min_bounds> or -origin <center>."))
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return 'fail'
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if 'factor' in args:
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factor = float(args['factor'])
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obj_to_scale.scale(factor, point=point)
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return
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if 'x' not in args and 'y' not in args:
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self.raise_tcl_error('%s' % _("Expected -x <value> -y <value>."))
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return 'fail'
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if 'x' in args and 'y' not in args:
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f_x = float(args['x'])
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obj_to_scale.scale(f_x, 0, point=point)
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elif 'x' not in args and 'y' in args:
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f_y = float(args['y'])
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obj_to_scale.scale(0, f_y, point=point)
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elif 'x' in args and 'y' in args:
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f_x = float(args['x'])
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f_y = float(args['y'])
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obj_to_scale.scale(f_x, f_y, point=point)
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