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https://git.salome-platform.org/gitpub/modules/geom.git
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61 lines
2.0 KiB
Python
61 lines
2.0 KiB
Python
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# Shape Proximity between edges
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import math
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import salome
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salome.salome_init_without_session()
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import GEOM
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from salome.geom import geomBuilder
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geompy = geomBuilder.New()
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O = geompy.MakeVertex(0, 0, 0)
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OX = geompy.MakeVectorDXDYDZ(1, 0, 0)
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OY = geompy.MakeVectorDXDYDZ(0, 1, 0)
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OZ = geompy.MakeVectorDXDYDZ(0, 0, 1)
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# create arc and segment
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Vertex_1 = geompy.MakeVertex(0, 0, -1)
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Vertex_2 = geompy.MakeVertex(1, 0, 0)
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Vertex_3 = geompy.MakeVertex(0, 0, 1)
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Arc_1 = geompy.MakeArc(Vertex_1, Vertex_2, Vertex_3)
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Arc_1_vertex_2 = geompy.GetSubShape(Arc_1, [2])
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Edge_1 = geompy.MakeEdgeOnCurveByLength(Arc_1, 3, Arc_1_vertex_2)
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Edge_2 = geompy.MakeEdge(Vertex_1, Vertex_3)
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shape1 = Edge_1
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shape2 = Edge_2
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# perform proximity calculation with the default parameters
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p1 = geompy.ShapeProximity()
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proximity1 = p1.proximity(shape1, shape2)
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# perform proximity calculation with custom parameters
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p2 = geompy.ShapeProximity()
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p2.setShapes(shape1, shape2)
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p2.setSampling(shape1, 100) # number of sample points for the first shape
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p2.setSampling(shape2, 40) # number of sample points for the second shape
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proximity2_coarse = p2.coarseProximity()
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proximity2_fine = p2.preciseProximity()
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assert(math.fabs(proximity1 - proximity2_fine) < 1.e-7)
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assert(math.fabs(proximity2_coarse - 0.9974949866) < 1.e-7)
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assert(math.fabs(proximity2_fine - 1) < 1.e-7)
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# move second edge and check proximity
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Translation_1 = geompy.MakeTranslation(Edge_2, 0.3, 0, 0)
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shape2 = Translation_1
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# perform proximity calculation with the default parameters
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p1 = geompy.ShapeProximity()
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proximity1 = p1.proximity(shape1, shape2)
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# perform proximity calculation with custom parameters
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p2 = geompy.ShapeProximity()
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p2.setShapes(shape1, shape2)
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p2.setSampling(shape1, 100) # number of sample points for the first shape
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p2.setSampling(shape2, 40) # number of sample points for the second shape
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proximity2_coarse = p2.coarseProximity()
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proximity2_fine = p2.preciseProximity()
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assert(math.fabs(proximity1 - 0.7) < 1.e-7)
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assert(math.fabs(proximity2_fine - 0.7) < 1.e-7)
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