526 lines
19 KiB
Python
526 lines
19 KiB
Python
__author__ = 'dcowden'
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"""
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Tests for CadQuery Selectors
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These tests do not construct any solids, they test only selectors that query
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an existing solid
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"""
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import math
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import unittest
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import sys
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import os.path
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# my modules
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from tests import BaseTest, makeUnitCube, makeUnitSquareWire
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from cadquery import *
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from cadquery import selectors
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class TestCQSelectors(BaseTest):
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def testWorkplaneCenter(self):
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"Test Moving workplane center"
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s = Workplane(Plane.XY())
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# current point and world point should be equal
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self.assertTupleAlmostEquals(
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(0.0, 0.0, 0.0), s.plane.origin.toTuple(), 3)
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# move origin and confirm center moves
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s.center(-2.0, -2.0)
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# current point should be 0,0, but
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self.assertTupleAlmostEquals(
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(-2.0, -2.0, 0.0), s.plane.origin.toTuple(), 3)
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def testVertices(self):
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t = makeUnitSquareWire() # square box
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c = CQ(t)
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self.assertEqual(4, c.vertices().size())
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self.assertEqual(4, c.edges().size())
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self.assertEqual(0, c.vertices().edges().size()
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) # no edges on any vertices
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# but selecting all edges still yields all vertices
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self.assertEqual(4, c.edges().vertices().size())
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self.assertEqual(1, c.wires().size()) # just one wire
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self.assertEqual(0, c.faces().size())
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# odd combinations all work but yield no results
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self.assertEqual(0, c.vertices().faces().size())
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self.assertEqual(0, c.edges().faces().size())
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self.assertEqual(0, c.edges().vertices().faces().size())
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def testEnd(self):
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c = CQ(makeUnitSquareWire())
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# 4 because there are 4 vertices
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self.assertEqual(4, c.vertices().size())
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# 1 because we started with 1 wire
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self.assertEqual(1, c.vertices().end().size())
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def testAll(self):
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"all returns a list of CQ objects, so that you can iterate over them individually"
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c = CQ(makeUnitCube())
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self.assertEqual(6, c.faces().size())
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self.assertEqual(6, len(c.faces().all()))
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self.assertEqual(4, c.faces().all()[0].vertices().size())
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def testFirst(self):
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c = CQ(makeUnitCube())
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self.assertEqual(type(c.vertices().first().val()), Vertex)
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self.assertEqual(
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type(c.vertices().first().first().first().val()), Vertex)
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def testCompounds(self):
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c = CQ(makeUnitSquareWire())
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self.assertEqual(0, c.compounds().size())
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self.assertEqual(0, c.shells().size())
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self.assertEqual(0, c.solids().size())
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def testSolid(self):
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c = CQ(makeUnitCube())
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# make sure all the counts are right for a cube
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self.assertEqual(1, c.solids().size())
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self.assertEqual(6, c.faces().size())
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self.assertEqual(12, c.edges().size())
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self.assertEqual(8, c.vertices().size())
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self.assertEqual(0, c.compounds().size())
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# now any particular face should result in 4 edges and four vertices
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self.assertEqual(4, c.faces().first().edges().size())
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self.assertEqual(1, c.faces().first().size())
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self.assertEqual(4, c.faces().first().vertices().size())
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self.assertEqual(4, c.faces().last().edges().size())
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def testFaceTypesFilter(self):
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"Filters by face type"
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c = CQ(makeUnitCube())
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self.assertEqual(c.faces().size(), c.faces('%PLANE').size())
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self.assertEqual(c.faces().size(), c.faces('%plane').size())
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self.assertEqual(0, c.faces('%sphere').size())
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self.assertEqual(0, c.faces('%cone').size())
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self.assertEqual(0, c.faces('%SPHERE').size())
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def testPerpendicularDirFilter(self):
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c = CQ(makeUnitCube())
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self.assertEqual(8, c.edges("#Z").size()) # 8 edges are perp. to z
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self.assertEqual(4, c.faces("#Z").size()) # 4 faces are perp to z too!
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def testFaceDirFilter(self):
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c = CQ(makeUnitCube())
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# a cube has one face in each direction
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self.assertEqual(1, c.faces("+Z").size())
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self.assertEqual(1, c.faces("-Z").size())
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self.assertEqual(1, c.faces("+X").size())
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self.assertEqual(1, c.faces("X").size()) # should be same as +X
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self.assertEqual(1, c.faces("-X").size())
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self.assertEqual(1, c.faces("+Y").size())
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self.assertEqual(1, c.faces("-Y").size())
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self.assertEqual(0, c.faces("XY").size())
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def testParallelPlaneFaceFilter(self):
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c = CQ(makeUnitCube())
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# faces parallel to Z axis
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self.assertEqual(2, c.faces("|Z").size())
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# TODO: provide short names for ParallelDirSelector
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self.assertEqual(2, c.faces(selectors.ParallelDirSelector(
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Vector((0, 0, 1)))).size()) # same thing as above
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self.assertEqual(2, c.faces(selectors.ParallelDirSelector(
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Vector((0, 0, -1)))).size()) # same thing as above
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# just for fun, vertices on faces parallel to z
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self.assertEqual(8, c.faces("|Z").vertices().size())
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def testParallelEdgeFilter(self):
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c = CQ(makeUnitCube())
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self.assertEqual(4, c.edges("|Z").size())
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self.assertEqual(4, c.edges("|X").size())
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self.assertEqual(4, c.edges("|Y").size())
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def testMaxDistance(self):
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c = CQ(makeUnitCube())
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# should select the topmost face
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self.assertEqual(1, c.faces(">Z").size())
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self.assertEqual(4, c.faces(">Z").vertices().size())
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# vertices should all be at z=1, if this is the top face
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self.assertEqual(4, len(c.faces(">Z").vertices().vals()))
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for v in c.faces(">Z").vertices().vals():
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self.assertAlmostEqual(1.0, v.Z, 3)
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# test the case of multiple objects at the same distance
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el = c.edges("<Z").vals()
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self.assertEqual(4, len(el))
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def testMinDistance(self):
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c = CQ(makeUnitCube())
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# should select the topmost face
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self.assertEqual(1, c.faces("<Z").size())
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self.assertEqual(4, c.faces("<Z").vertices().size())
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# vertices should all be at z=1, if this is the top face
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self.assertEqual(4, len(c.faces("<Z").vertices().vals()))
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for v in c.faces("<Z").vertices().vals():
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self.assertAlmostEqual(0.0, v.Z, 3)
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# test the case of multiple objects at the same distance
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el = c.edges("<Z").vals()
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self.assertEqual(4, len(el))
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def testNthDistance(self):
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c = Workplane('XY').pushPoints([(-2, 0), (2, 0)]).box(1, 1, 1)
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# 2nd face
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val = c.faces(selectors.DirectionNthSelector(Vector(1, 0, 0), 1)).val()
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self.assertAlmostEqual(val.Center().x, -1.5)
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# 2nd face with inversed selection vector
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val = c.faces(selectors.DirectionNthSelector(
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Vector(-1, 0, 0), 1)).val()
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self.assertAlmostEqual(val.Center().x, 1.5)
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# 2nd last face
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val = c.faces(selectors.DirectionNthSelector(
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Vector(1, 0, 0), -2)).val()
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self.assertAlmostEqual(val.Center().x, 1.5)
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# Last face
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val = c.faces(selectors.DirectionNthSelector(
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Vector(1, 0, 0), -1)).val()
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self.assertAlmostEqual(val.Center().x, 2.5)
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# check if the selected face if normal to the specified Vector
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self.assertAlmostEqual(
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val.normalAt().cross(Vector(1, 0, 0)).Length, 0.0)
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# repeat the test using string based selector
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# 2nd face
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val = c.faces('>(1,0,0)[1]').val()
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self.assertAlmostEqual(val.Center().x, -1.5)
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val = c.faces('>X[1]').val()
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self.assertAlmostEqual(val.Center().x, -1.5)
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# 2nd face with inversed selection vector
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val = c.faces('>(-1,0,0)[1]').val()
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self.assertAlmostEqual(val.Center().x, 1.5)
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val = c.faces('<X[1]').val()
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self.assertAlmostEqual(val.Center().x, 1.5)
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# 2nd last face
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val = c.faces('>X[-2]').val()
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self.assertAlmostEqual(val.Center().x, 1.5)
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# Last face
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val = c.faces('>X[-1]').val()
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self.assertAlmostEqual(val.Center().x, 2.5)
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# check if the selected face if normal to the specified Vector
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self.assertAlmostEqual(
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val.normalAt().cross(Vector(1, 0, 0)).Length, 0.0)
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# test selection of multiple faces with the same distance
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c = Workplane('XY')\
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.box(1, 4, 1, centered=(False, True, False)).faces('<Z')\
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.box(2, 2, 2, centered=(True, True, False)).faces('>Z')\
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.box(1, 1, 1, centered=(True, True, False))
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# select 2nd from the bottom (NB python indexing is 0-based)
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vals = c.faces('>Z[1]').vals()
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self.assertEqual(len(vals), 2)
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val = c.faces('>Z[1]').val()
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self.assertAlmostEqual(val.Center().z, 1)
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# do the same but by selecting 3rd from the top
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vals = c.faces('<Z[2]').vals()
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self.assertEqual(len(vals), 2)
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val = c.faces('<Z[2]').val()
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self.assertAlmostEqual(val.Center().z, 1)
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# do the same but by selecting 2nd last from the bottom
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vals = c.faces('<Z[-2]').vals()
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self.assertEqual(len(vals), 2)
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val = c.faces('<Z[-2]').val()
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self.assertAlmostEqual(val.Center().z, 1)
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# verify that <Z[-1] is equivalent to <Z
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val1 = c.faces('<Z[-1]').val()
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val2 = c.faces('<Z').val()
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self.assertTupleAlmostEquals(val1.Center().toTuple(),
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val2.Center().toTuple(),
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3)
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# verify that >Z[-1] is equivalent to >Z
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val1 = c.faces('>Z[-1]').val()
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val2 = c.faces('>Z').val()
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self.assertTupleAlmostEquals(val1.Center().toTuple(),
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val2.Center().toTuple(),
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3)
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def testNearestTo(self):
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c = CQ(makeUnitCube())
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# nearest vertex to origin is (0,0,0)
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t = (0.1, 0.1, 0.1)
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v = c.vertices(selectors.NearestToPointSelector(t)).vals()[0]
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self.assertTupleAlmostEquals((0.0, 0.0, 0.0), (v.X, v.Y, v.Z), 3)
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t = (0.1, 0.1, 0.2)
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# nearest edge is the vertical side edge, 0,0,0 -> 0,0,1
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e = c.edges(selectors.NearestToPointSelector(t)).vals()[0]
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v = c.edges(selectors.NearestToPointSelector(t)).vertices().vals()
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self.assertEqual(2, len(v))
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# nearest solid is myself
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s = c.solids(selectors.NearestToPointSelector(t)).vals()
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self.assertEqual(1, len(s))
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def testBox(self):
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c = CQ(makeUnitCube())
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# test vertice selection
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test_data_vertices = [
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# box point0, box point1, selected vertice
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((0.9, 0.9, 0.9), (1.1, 1.1, 1.1), (1.0, 1.0, 1.0)),
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((-0.1, 0.9, 0.9), (0.9, 1.1, 1.1), (0.0, 1.0, 1.0)),
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((-0.1, -0.1, 0.9), (0.1, 0.1, 1.1), (0.0, 0.0, 1.0)),
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((-0.1, -0.1, -0.1), (0.1, 0.1, 0.1), (0.0, 0.0, 0.0)),
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((0.9, -0.1, -0.1), (1.1, 0.1, 0.1), (1.0, 0.0, 0.0)),
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((0.9, 0.9, -0.1), (1.1, 1.1, 0.1), (1.0, 1.0, 0.0)),
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((-0.1, 0.9, -0.1), (0.1, 1.1, 0.1), (0.0, 1.0, 0.0)),
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((0.9, -0.1, 0.9), (1.1, 0.1, 1.1), (1.0, 0.0, 1.0))
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]
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for d in test_data_vertices:
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vl = c.vertices(selectors.BoxSelector(d[0], d[1])).vals()
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self.assertEqual(1, len(vl))
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v = vl[0]
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self.assertTupleAlmostEquals(d[2], (v.X, v.Y, v.Z), 3)
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# this time box points are swapped
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vl = c.vertices(selectors.BoxSelector(d[1], d[0])).vals()
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self.assertEqual(1, len(vl))
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v = vl[0]
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self.assertTupleAlmostEquals(d[2], (v.X, v.Y, v.Z), 3)
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# test multiple vertices selection
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vl = c.vertices(selectors.BoxSelector(
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(-0.1, -0.1, 0.9), (0.1, 1.1, 1.1))).vals()
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self.assertEqual(2, len(vl))
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vl = c.vertices(selectors.BoxSelector(
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(-0.1, -0.1, -0.1), (0.1, 1.1, 1.1))).vals()
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self.assertEqual(4, len(vl))
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# test edge selection
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test_data_edges = [
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# box point0, box point1, edge center
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((0.4, -0.1, -0.1), (0.6, 0.1, 0.1), (0.5, 0.0, 0.0)),
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((-0.1, -0.1, 0.4), (0.1, 0.1, 0.6), (0.0, 0.0, 0.5)),
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((0.9, 0.9, 0.4), (1.1, 1.1, 0.6), (1.0, 1.0, 0.5)),
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((0.4, 0.9, 0.9), (0.6, 1.1, 1.1,), (0.5, 1.0, 1.0))
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]
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for d in test_data_edges:
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el = c.edges(selectors.BoxSelector(d[0], d[1])).vals()
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self.assertEqual(1, len(el))
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ec = el[0].Center()
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self.assertTupleAlmostEquals(d[2], (ec.x, ec.y, ec.z), 3)
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# test again by swapping box points
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el = c.edges(selectors.BoxSelector(d[1], d[0])).vals()
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self.assertEqual(1, len(el))
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ec = el[0].Center()
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self.assertTupleAlmostEquals(d[2], (ec.x, ec.y, ec.z), 3)
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# test multiple edge selection
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el = c.edges(selectors.BoxSelector(
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(-0.1, -0.1, -0.1), (0.6, 0.1, 0.6))).vals()
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self.assertEqual(2, len(el))
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el = c.edges(selectors.BoxSelector(
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(-0.1, -0.1, -0.1), (1.1, 0.1, 0.6))).vals()
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self.assertEqual(3, len(el))
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# test face selection
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test_data_faces = [
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# box point0, box point1, face center
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((0.4, -0.1, 0.4), (0.6, 0.1, 0.6), (0.5, 0.0, 0.5)),
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((0.9, 0.4, 0.4), (1.1, 0.6, 0.6), (1.0, 0.5, 0.5)),
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((0.4, 0.4, 0.9), (0.6, 0.6, 1.1), (0.5, 0.5, 1.0)),
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((0.4, 0.4, -0.1), (0.6, 0.6, 0.1), (0.5, 0.5, 0.0))
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]
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for d in test_data_faces:
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fl = c.faces(selectors.BoxSelector(d[0], d[1])).vals()
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self.assertEqual(1, len(fl))
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fc = fl[0].Center()
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self.assertTupleAlmostEquals(d[2], (fc.x, fc.y, fc.z), 3)
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# test again by swapping box points
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fl = c.faces(selectors.BoxSelector(d[1], d[0])).vals()
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self.assertEqual(1, len(fl))
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fc = fl[0].Center()
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self.assertTupleAlmostEquals(d[2], (fc.x, fc.y, fc.z), 3)
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# test multiple face selection
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fl = c.faces(selectors.BoxSelector(
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(0.4, 0.4, 0.4), (0.6, 1.1, 1.1))).vals()
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self.assertEqual(2, len(fl))
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fl = c.faces(selectors.BoxSelector(
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(0.4, 0.4, 0.4), (1.1, 1.1, 1.1))).vals()
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self.assertEqual(3, len(fl))
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# test boundingbox option
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el = c.edges(selectors.BoxSelector(
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(-0.1, -0.1, -0.1), (1.1, 0.1, 0.6), True)).vals()
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self.assertEqual(1, len(el))
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fl = c.faces(selectors.BoxSelector(
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(0.4, 0.4, 0.4), (1.1, 1.1, 1.1), True)).vals()
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self.assertEqual(0, len(fl))
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fl = c.faces(selectors.BoxSelector(
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(-0.1, 0.4, -0.1), (1.1, 1.1, 1.1), True)).vals()
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self.assertEqual(1, len(fl))
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def testAndSelector(self):
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c = CQ(makeUnitCube())
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S = selectors.StringSyntaxSelector
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BS = selectors.BoxSelector
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el = c.edges(selectors.AndSelector(
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S('|X'), BS((-2, -2, 0.1), (2, 2, 2)))).vals()
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self.assertEqual(2, len(el))
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# test 'and' (intersection) operator
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el = c.edges(S('|X') & BS((-2, -2, 0.1), (2, 2, 2))).vals()
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self.assertEqual(2, len(el))
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# test using extended string syntax
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v = c.vertices(">X and >Y").vals()
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self.assertEqual(2, len(v))
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def testSumSelector(self):
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c = CQ(makeUnitCube())
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S = selectors.StringSyntaxSelector
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fl = c.faces(selectors.SumSelector(S(">Z"), S("<Z"))).vals()
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self.assertEqual(2, len(fl))
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el = c.edges(selectors.SumSelector(S("|X"), S("|Y"))).vals()
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self.assertEqual(8, len(el))
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# test the sum operator
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fl = c.faces(S(">Z") + S("<Z")).vals()
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self.assertEqual(2, len(fl))
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el = c.edges(S("|X") + S("|Y")).vals()
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self.assertEqual(8, len(el))
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# test using extended string syntax
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fl = c.faces(">Z or <Z").vals()
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self.assertEqual(2, len(fl))
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el = c.edges("|X or |Y").vals()
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self.assertEqual(8, len(el))
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def testSubtractSelector(self):
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c = CQ(makeUnitCube())
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S = selectors.StringSyntaxSelector
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|
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fl = c.faces(selectors.SubtractSelector(S("#Z"), S(">X"))).vals()
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self.assertEqual(3, len(fl))
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# test the subtract operator
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fl = c.faces(S("#Z") - S(">X")).vals()
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self.assertEqual(3, len(fl))
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|
|
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# test using extended string syntax
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fl = c.faces("#Z exc >X").vals()
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self.assertEqual(3, len(fl))
|
|
|
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def testInverseSelector(self):
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c = CQ(makeUnitCube())
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|
|
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S = selectors.StringSyntaxSelector
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|
|
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fl = c.faces(selectors.InverseSelector(S('>Z'))).vals()
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self.assertEqual(5, len(fl))
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el = c.faces('>Z').edges(selectors.InverseSelector(S('>X'))).vals()
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self.assertEqual(3, len(el))
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|
|
|
# test invert operator
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|
fl = c.faces(-S('>Z')).vals()
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self.assertEqual(5, len(fl))
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el = c.faces('>Z').edges(-S('>X')).vals()
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self.assertEqual(3, len(el))
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|
|
|
# test using extended string syntax
|
|
fl = c.faces('not >Z').vals()
|
|
self.assertEqual(5, len(fl))
|
|
el = c.faces('>Z').edges('not >X').vals()
|
|
self.assertEqual(3, len(el))
|
|
|
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def testComplexStringSelector(self):
|
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c = CQ(makeUnitCube())
|
|
|
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v = c.vertices('(>X and >Y) or (<X and <Y)').vals()
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self.assertEqual(4, len(v))
|
|
|
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def testFaceCount(self):
|
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c = CQ(makeUnitCube())
|
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self.assertEqual(6, c.faces().size())
|
|
self.assertEqual(2, c.faces("|Z").size())
|
|
|
|
def testVertexFilter(self):
|
|
"test selecting vertices on a face"
|
|
c = CQ(makeUnitCube())
|
|
|
|
# TODO: filters work ok, but they are in global coordinates which sux. it would be nice
|
|
# if they were available in coordinates local to the selected face
|
|
|
|
v2 = c.faces("+Z").vertices("<XY")
|
|
self.assertEqual(1, v2.size()) # another way
|
|
# make sure the vertex is the right one
|
|
|
|
self.assertTupleAlmostEquals((0.0, 0.0, 1.0), v2.val().toTuple(), 3)
|
|
|
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def testGrammar(self):
|
|
"""
|
|
Test if reasonable string selector expressions parse without an error
|
|
"""
|
|
|
|
gram = selectors._expression_grammar
|
|
|
|
expressions = ['+X ',
|
|
'-Y',
|
|
'|(1,0,0)',
|
|
'#(1.,1.4114,-0.532)',
|
|
'%Plane',
|
|
'>XZ',
|
|
'<Z[-2]',
|
|
'>(1,4,55.)[20]',
|
|
'|XY',
|
|
'<YZ[0]',
|
|
'front',
|
|
'back',
|
|
'left',
|
|
'right',
|
|
'top',
|
|
'bottom',
|
|
'not |(1,1,0) and >(0,0,1) or XY except >(1,1,1)[-1]',
|
|
'(not |(1,1,0) and >(0,0,1)) exc XY and (Z or X)',
|
|
'not ( <X or >X or <Y or >Y )']
|
|
|
|
for e in expressions:
|
|
gram.parseString(e, parseAll=True)
|