22e159a5ad
- Added RigidConstraint. - Depricated some methods (get_result, get_constrainedness) and added some new methods (get_solution, get_cluster, get_status). Removed old SelectionConstraint and renamed FunctionConstraint to SelectionConstraint Depricated ClusterSolver2D Small bugfixes in cluster ClusterSolver3D Renamed solvergui directory to workbench Renamed solvertest directory to test
34 lines
1.1 KiB
Python
34 lines
1.1 KiB
Python
from constraint import Constraint
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from tolerance import tol_eq
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from intersections import *
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class SelectionConstraint(Constraint):
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"""select solutions where function returns true when applied to given variables."""
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def __init__(self,function, vars):
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"""init constraint with function and a sequence of variables"""
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self._variables = vars
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self._function = function
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def satisfied(self, map):
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"""return True iff given solution (map) for given variables applied to function gives True"""
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values = []
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for var in self._variables:
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values.append(map[var])
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return apply(self._function, values)==True
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def __str__(self):
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return "SelectionConstraint("+self._function.__name__+","+str(map(str, self._variables))+")"
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def fnot(function):
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notf = lambda *args: not apply(function,args)
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notf.__name__ = "fnot("+function.__name__+")"
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return notf
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def test():
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print SelectionConstraint(is_right_handed, ['a','b','c','d'])
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print SelectionConstraint(fnot(is_right_handed), ['a','b','c','d'])
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if __name__ == "__main__": test()
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