mirror of
https://git.salome-platform.org/gitpub/modules/geom.git
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311 lines
13 KiB
Python
311 lines
13 KiB
Python
# -*- coding: iso-8859-1 -*-
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# Copyright (C) 2007-2022 CEA/DEN, EDF R&D, OPEN CASCADE
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#
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# This library is free software; you can redistribute it and/or
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# modify it under the terms of the GNU Lesser General Public
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# License as published by the Free Software Foundation; either
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# version 2.1 of the License, or (at your option) any later version.
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#
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# This library is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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# Lesser General Public License for more details.
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#
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# You should have received a copy of the GNU Lesser General Public
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# License along with this library; if not, write to the Free Software
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# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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#
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# See http://www.salome-platform.org/ or email : webmaster.salome@opencascade.com
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#
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import salome
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salome.salome_init()
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import GEOM
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from salome.geom import geomBuilder
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import math
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geompy = geomBuilder.New()
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# gaps and tolerances
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halfGap = math.sqrt(2.0) / 2.0 # dx = 1 and dy = 1
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tol = 3.0 # max. gap to be closed
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prec = 1e-4 # precision of comparison
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# prepare edges
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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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Vertex_1 = geompy.MakeVertex(30, 70, 0)
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Vertex_2 = geompy.MakeVertex(100, 0, 0)
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Vertex_3 = geompy.MakeVertex(100, 70, 0)
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Vertex_4 = geompy.MakeVertex(0, 70, 0)
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Vertex_5 = geompy.MakeVertex(60, 60, 0)
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Vertex_6 = geompy.MakeVertex(10, 50, 0)
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Vertex_7 = geompy.MakeVertex(20, 0, 0)
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Vertex_8 = geompy.MakeVertex(15, 80, 0)
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Vertex_9 = geompy.MakeVertex(35, 60, 0)
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Vertex_10 = geompy.MakeVertex(-20, 80, 0)
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Vertex_11 = geompy.MakeVertex(10, -10, 0)
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Vertex_12 = geompy.MakeVertex(10, 20, 0)
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Vertex_13 = geompy.MakeVertex(-10, 30, 0)
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Vertex_14 = geompy.MakeVertex(-20, 0, 0)
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Vertex_15 = geompy.MakeVertex(-10, -10, 0)
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# Linear segments
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Curve_1 = geompy.MakePolyline([O, Vertex_2, Vertex_3, Vertex_4], True)
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# Circles
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Circle_1 = geompy.MakeCircle(Vertex_3, None, 10)
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Circle_2 = geompy.MakeCircle(Vertex_5, None, 15)
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# Ellipses
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geomObj_1 = geompy.MakeEllipse(O, None, 30, 10)
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geomObj_2 = geompy.MakeRotation(geomObj_1, OZ, 45*math.pi/180.0)
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Translation_1 = geompy.MakeTranslation(geomObj_2, 100, 0, 0)
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geomObj_3 = geompy.MakeEllipse(None, None, 20, 10)
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geomObj_4 = geompy.MakeRotation(geomObj_3, OZ, 90*math.pi/180.0)
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Translation_2 = geompy.MakeTranslation(geomObj_4, 50, 10, 0)
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# Closed B-Spline curve
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Curve_2 = geompy.MakeInterpol([Vertex_1, Vertex_6, Vertex_10, Vertex_8], True, False)
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# Closed Bezier curve
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Curve_4 = geompy.MakeBezier([Vertex_7, Vertex_12, Vertex_13, Vertex_14, Vertex_15, Vertex_11], True)
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# Partition
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Partition_1 = geompy.MakePartition([Circle_1, Circle_2, Curve_1, Curve_2, Translation_1, Translation_2, Curve_4], [], [], [], geompy.ShapeType["EDGE"], 0, [], 0)
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[Edge_1,Edge_2,Edge_3,Edge_4,Edge_5,Edge_6,Edge_7,Edge_8,Edge_9,Edge_10,Edge_11,Edge_12,Edge_13,Edge_14,Edge_15,Edge_16,Edge_17,Edge_18,Edge_19,Edge_20,Edge_21,Edge_22,Edge_23,Edge_24,Edge_25,Edge_26,Edge_27,Edge_28,Edge_29,Edge_30,Edge_31,Edge_32] = geompy.ExtractShapes(Partition_1, geompy.ShapeType["FLAT"], True)
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# FuseCollinearEdges
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Wire_1 = geompy.MakeWire([Edge_16, Edge_20], 1e-07)
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Wire_2 = geompy.MakeWire([Edge_30, Edge_32], 1e-07)
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Wire_3 = geompy.MakeWire([Edge_24, Edge_31], 1e-07)
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Wire_4 = geompy.MakeWire([Edge_11, Edge_15], 1e-07)
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FuseEdges_1 = geompy.FuseCollinearEdgesWithinWire(Wire_1, [])
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[Edge_33] = geompy.ExtractShapes(FuseEdges_1, geompy.ShapeType["EDGE"], True)
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FuseEdges_2 = geompy.FuseCollinearEdgesWithinWire(Wire_2, [])
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[Edge_34] = geompy.ExtractShapes(FuseEdges_2, geompy.ShapeType["EDGE"], True)
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FuseEdges_3 = geompy.FuseCollinearEdgesWithinWire(Wire_3, [])
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[Edge_35] = geompy.ExtractShapes(FuseEdges_3, geompy.ShapeType["EDGE"], True)
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FuseEdges_4 = geompy.FuseCollinearEdgesWithinWire(Wire_4, [])
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[Edge_36] = geompy.ExtractShapes(FuseEdges_4, geompy.ShapeType["EDGE"], True)
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# Make gaps
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Translation_3 = geompy.MakeTranslation(Edge_2, -1, -1, 0) # closed bezier outer part
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Translation_4 = geompy.MakeTranslation(Edge_5, -1, 1, 0) # closed b-spline outer part
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Translation_5 = geompy.MakeTranslation(Edge_18, 0, 1, 0)
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Translation_6 = geompy.MakeTranslation(Edge_34, 1, 1, 0)
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Translation_7 = geompy.MakeTranslation(Edge_35, 1, -1, 0)
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Translation_8 = geompy.MakeTranslation(Edge_13, 0, -1, 0)
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Translation_9 = geompy.MakeTranslation(Edge_7, 1, 1, 0) # closed bezier inner part
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Translation_10 = geompy.MakeTranslation(Edge_9, 1, -1, 0) # closed b-spline inner part
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Translation_11 = geompy.MakeTranslation(Edge_33, 0, -1, 0)
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Translation_12 = geompy.MakeTranslation(Edge_25, -1, -1, 0)
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Translation_13 = geompy.MakeTranslation(Edge_23, -1, 1, 0)
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Translation_14 = geompy.MakeTranslation(Edge_36, 0, 1, 0)
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# Not closed B-Spline and Bezier curves
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translated_vertex_3 = geompy.GetSubShape(Translation_3, [3])
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translated_vertex_2 = geompy.GetSubShape(Translation_3, [2])
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Curve_1 = geompy.MakeBezier([translated_vertex_3, Vertex_11, Vertex_15, Vertex_14, translated_vertex_2], False)
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translated_vertex_2_1 = geompy.GetSubShape(Translation_9, [2])
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translated_vertex_3_1 = geompy.GetSubShape(Translation_9, [3])
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Curve_2 = geompy.MakeBezier([translated_vertex_2_1, Vertex_12, translated_vertex_3_1], False)
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translated_vertex_2_2 = geompy.GetSubShape(Translation_4, [2])
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translated_vertex_3_2 = geompy.GetSubShape(Translation_4, [3])
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Curve_3 = geompy.MakeInterpol([translated_vertex_2_2, Vertex_10, Vertex_8, translated_vertex_3_2], False, False)
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translated_vertex_2_3 = geompy.GetSubShape(Translation_10, [2])
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translated_vertex_3_3 = geompy.GetSubShape(Translation_10, [3])
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Curve_4 = geompy.MakeInterpol([translated_vertex_2_3, Vertex_9, Vertex_6, translated_vertex_3_3], False, False)
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# Make wires with different methods
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###########################################################
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### Use case 1. With pieces of closed Beziers and B_Splines
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###
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### MakeWire() works good
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### MakeWireConstCurveType() raises exception,
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### as pieces of Beziers and B_Splines are not supported now
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### MakeWireWithMode(GEOM.WBM_Approximation) gives wrong result,
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### as pieces of closed bezier curve are wrongly treated
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###########################################################
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# add to study argument edges
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edges_outer_1 = [Translation_3, Translation_4, Translation_5, Translation_6, Translation_7, Translation_8, Edge_3, Edge_10, Edge_12, Edge_19, Edge_21, Edge_28]
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edges_inner_1 = [Translation_9, Translation_10, Translation_11, Translation_12, Translation_13, Translation_14, Edge_3, Edge_10, Edge_12, Edge_19, Edge_21, Edge_28]
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edges_outer_1_folder = geompy.NewFolder('edges_outer_1')
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edges_inner_1_folder = geompy.NewFolder('edges_inner_1')
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ii = 1
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for ee in edges_outer_1:
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geompy.addToStudy(ee, "edge_outer_1_%d"%ii)
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geompy.PutToFolder(ee, edges_outer_1_folder)
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ii += 1
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pass
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ii = 1
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for ee in edges_inner_1:
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geompy.addToStudy(ee, "edge_inner_1_%d"%ii)
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geompy.PutToFolder(ee, edges_inner_1_folder)
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ii += 1
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pass
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# a. Old implementation (FixTolerance)
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Wire_FixTolerance_Outer_1 = geompy.MakeWire(edges_outer_1, tol, 'Wire_FixTolerance_Outer_1')
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Wire_FixTolerance_Inner_1 = geompy.MakeWire(edges_inner_1, tol, 'Wire_FixTolerance_Inner_1')
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# b. New implementation (ConstCurveType)
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# b.1. Not supported case:
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# Errors because of not supported Bezier and B-Spline
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# (Ends of edge do not correspond to first and last poles)
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#
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#Wire_ConstCurveType_Outer_1 = geompy.MakeWireConstCurveType(edges_outer_1, tol, 'Wire_ConstCurveType_Outer_1')
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#Wire_ConstCurveType_Inner_1 = geompy.MakeWireConstCurveType(edges_inner_1, tol, 'Wire_ConstCurveType_Inner_1')
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#
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try:
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Wire_ConstCurveType_BezierOnly = geompy.MakeWireConstCurveType([Edge_1, Edge_6, Translation_4, Translation_5, Translation_6, Translation_7, Translation_8, Edge_3, Edge_10, Edge_12, Edge_19, Edge_21, Edge_28], tol, 'Wire_ConstCurveType_BezierOnly')
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except:
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print("KNOWN PROBLEM: MakeWireConstCurveType doesn't support pieces of Bezier curves")
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else:
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assert(False), "MakeWireConstCurveType should fail here"
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pass
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#
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try:
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Wire_ConstCurveType_BSplineOnly = geompy.MakeWireConstCurveType([Translation_9, Edge_4, Edge_8, Translation_11, Translation_12, Translation_13, Translation_14, Edge_3, Edge_10, Edge_12, Edge_19, Edge_21, Edge_28], tol, 'Wire_ConstCurveType_BSplineOnly')
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except:
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print("KNOWN PROBLEM: MakeWireConstCurveType doesn't support pieces of BSpline curves")
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else:
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assert(False), "MakeWireConstCurveType should fail here"
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pass
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# c. Approximation mode (canonical curves are approximated with b-splines)
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Wire_Approximation_Outer_1 = geompy.MakeWireWithMode(edges_outer_1, tol, GEOM.WBM_Approximation, 'Wire_Approximation_Outer_1')
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Wire_Approximation_Inner_1 = geompy.MakeWireWithMode(edges_inner_1, tol, GEOM.WBM_Approximation, 'Wire_Approximation_Inner_1')
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### check tolerances
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#
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tol_FO1 = geompy.Tolerance(Wire_FixTolerance_Outer_1)[5]
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tol_FI1 = geompy.Tolerance(Wire_FixTolerance_Inner_1)[5]
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assert(abs(tol_FO1 - halfGap) < prec)
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assert(abs(tol_FI1 - halfGap) < prec)
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#
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### Not supported case
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#tol_CO1 = geompy.Tolerance(Wire_ConstCurveType_Outer_1)[5]
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#tol_CI1 = geompy.Tolerance(Wire_ConstCurveType_Inner_1)[5]
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#assert(tol_CO1 < prec)
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#assert(tol_CI1 < prec)
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#
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tol_AO1 = geompy.Tolerance(Wire_Approximation_Outer_1)[5]
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tol_AI1 = geompy.Tolerance(Wire_Approximation_Inner_1)[5]
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assert(tol_AO1 < prec)
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assert(tol_AI1 < prec)
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### check wire length
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#
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Length_FO1 = geompy.BasicProperties( Wire_FixTolerance_Outer_1 )[0]
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Length_FI1 = geompy.BasicProperties( Wire_FixTolerance_Inner_1 )[0]
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assert(abs(Length_FO1 - 530.13081) < prec)
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assert(abs(Length_FI1 - 415.46762) < prec)
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#
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### Not supported case
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#Length_CO1 = geompy.BasicProperties( Wire_ConstCurveType_Outer_1 )[0]
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#Length_CI1 = geompy.BasicProperties( Wire_ConstCurveType_Inner_1 )[0]
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#assert(abs(Length_CO1 - ) < prec)
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#assert(abs(Length_CI1 - ) < prec)
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#
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# Here we have a problem with Approximation mode: pieces of bezier curve are wrongly treated
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Length_AO1 = geompy.BasicProperties( Wire_Approximation_Outer_1 )[0]
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Length_AI1 = geompy.BasicProperties( Wire_Approximation_Inner_1 )[0]
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#assert(math.abs(Length_AO1 - 514.35263) < prec)
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#assert(math.abs(Length_AI1 - 437.69903) < prec)
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if Length_AO1 < 520.0 or Length_AI1 > 425.0:
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print("KNOWN PROBLEM: MakeWireWithMode(GEOM.WBM_Approximation) error: pieces of closed bezier curve are wrongly treated")
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pass
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##############################################################
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### Use case 2. With entire Beziers and B_Splines (not closed)
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###
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### All three methods give good results
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##############################################################
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# add to study argument edges
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edges_outer_2 = [Curve_1, Curve_3, Translation_5, Translation_6, Translation_7, Translation_8, Edge_3, Edge_10, Edge_12, Edge_19, Edge_21, Edge_28]
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edges_inner_2 = [Curve_2, Curve_4, Translation_11, Translation_12, Translation_13, Translation_14, Edge_3, Edge_10, Edge_12, Edge_19, Edge_21, Edge_28]
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edges_outer_2_folder = geompy.NewFolder('edges_outer_2')
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edges_inner_2_folder = geompy.NewFolder('edges_inner_2')
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ii = 1
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for ee in edges_outer_2:
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geompy.addToStudy(ee, "edge_outer_2_%d"%ii)
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geompy.PutToFolder(ee, edges_outer_2_folder)
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ii += 1
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pass
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ii = 1
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for ee in edges_inner_2:
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geompy.addToStudy(ee, "edge_inner_2_%d"%ii)
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geompy.PutToFolder(ee, edges_inner_2_folder)
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ii += 1
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pass
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# a. Old implementation (FixTolerance)
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Wire_FixTolerance_Outer_2 = geompy.MakeWire(edges_outer_2, tol, 'Wire_FixTolerance_Outer_2')
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Wire_FixTolerance_Inner_2 = geompy.MakeWire(edges_inner_2, tol, 'Wire_FixTolerance_Inner_2')
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# b. New implementation (ConstCurveType)
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Wire_ConstCurveType_Outer_2 = geompy.MakeWireConstCurveType(edges_outer_2, tol, 'Wire_ConstCurveType_Outer_2')
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Wire_ConstCurveType_Inner_2 = geompy.MakeWireConstCurveType(edges_inner_2, tol, 'Wire_ConstCurveType_Inner_2')
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# c. Approximation mode (in case of need canonical curves are approximated with b-splines)
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Wire_Approximation_Outer_2 = geompy.MakeWireWithMode(edges_outer_2, tol, GEOM.WBM_Approximation, 'Wire_Approximation_Outer_2')
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Wire_Approximation_Inner_2 = geompy.MakeWireWithMode(edges_inner_2, tol, GEOM.WBM_Approximation, 'Wire_Approximation_Inner_2')
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### check tolerances
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#
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tol_FO2 = geompy.Tolerance(Wire_FixTolerance_Outer_2)[5]
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tol_FI2 = geompy.Tolerance(Wire_FixTolerance_Inner_2)[5]
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assert(abs(tol_FO2 - halfGap) < prec)
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assert(abs(tol_FI2 - halfGap) < prec)
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#
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tol_CO2 = geompy.Tolerance(Wire_ConstCurveType_Outer_2)[5]
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tol_CI2 = geompy.Tolerance(Wire_ConstCurveType_Inner_2)[5]
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assert(tol_CO2 < prec)
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assert(tol_CI2 < prec)
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#
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tol_AO2 = geompy.Tolerance(Wire_Approximation_Outer_2)[5]
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tol_AI2 = geompy.Tolerance(Wire_Approximation_Inner_2)[5]
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assert(tol_AO2 < prec)
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assert(tol_AI2 < prec)
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### check wire length
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#
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Length_FO2 = geompy.BasicProperties( Wire_FixTolerance_Outer_2 )[0]
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Length_FI2 = geompy.BasicProperties( Wire_FixTolerance_Inner_2 )[0]
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assert(abs(Length_FO2 - 527.57476) < prec)
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assert(abs(Length_FI2 - 421.28096) < prec)
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#
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Length_CO2 = geompy.BasicProperties( Wire_ConstCurveType_Outer_2 )[0]
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Length_CI2 = geompy.BasicProperties( Wire_ConstCurveType_Inner_2 )[0]
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assert(abs(Length_CO2 - 534.02648) < prec)
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assert(abs(Length_CI2 - 418.95420) < prec)
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#
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Length_AO2 = geompy.BasicProperties( Wire_Approximation_Outer_2 )[0]
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Length_AI2 = geompy.BasicProperties( Wire_Approximation_Inner_2 )[0]
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assert(abs(Length_AO2 - 537.15192) < prec)
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assert(abs(Length_AI2 - 422.09815) < prec)
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if salome.sg.hasDesktop():
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salome.sg.updateObjBrowser()
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