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1 | // Created on: 2014-10-20 |
2 | // Created by: Denis BOGOLEPOV |
3 | // Copyright (c) 2014 OPEN CASCADE SAS |
4 | // |
5 | // This file is part of Open CASCADE Technology software library. |
6 | // |
7 | // This library is free software; you can redistribute it and/or modify it under |
8 | // the terms of the GNU Lesser General Public License version 2.1 as published |
9 | // by the Free Software Foundation, with special exception defined in the file |
10 | // OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT |
11 | // distribution for complete text of the license and disclaimer of any warranty. |
12 | // |
13 | // Alternatively, this file may be used under the terms of Open CASCADE |
14 | // commercial license or contractual agreement. |
15 | |
16 | #include <BRepExtrema_ShapeProximity.hxx> |
17 | |
18 | #include <Precision.hxx> |
19 | #include <TopExp_Explorer.hxx> |
20 | |
21 | //======================================================================= |
22 | //function : BRepExtrema_ShapeProximity |
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23 | //purpose : Creates uninitialized proximity tool |
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24 | //======================================================================= |
25 | BRepExtrema_ShapeProximity::BRepExtrema_ShapeProximity (const Standard_Real theTolerance) |
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26 | : myTolerance (theTolerance), |
27 | myElementSet1 (new BRepExtrema_TriangleSet), |
28 | myElementSet2 (new BRepExtrema_TriangleSet) |
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29 | { |
30 | // Should be initialized later |
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31 | myIsInitS1 = myIsInitS2 = Standard_False; |
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32 | } |
33 | |
34 | //======================================================================= |
35 | //function : BRepExtrema_ShapeProximity |
36 | //purpose : Creates proximity tool for the given two shapes |
37 | //======================================================================= |
38 | BRepExtrema_ShapeProximity::BRepExtrema_ShapeProximity (const TopoDS_Shape& theShape1, |
39 | const TopoDS_Shape& theShape2, |
40 | const Standard_Real theTolerance) |
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41 | : myTolerance (theTolerance), |
42 | myElementSet1 (new BRepExtrema_TriangleSet), |
43 | myElementSet2 (new BRepExtrema_TriangleSet) |
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44 | { |
45 | LoadShape1 (theShape1); |
46 | LoadShape2 (theShape2); |
47 | } |
48 | |
49 | //======================================================================= |
50 | //function : LoadShape1 |
51 | //purpose : Loads 1st shape into proximity tool |
52 | //======================================================================= |
53 | Standard_Boolean BRepExtrema_ShapeProximity::LoadShape1 (const TopoDS_Shape& theShape1) |
54 | { |
55 | myFaceList1.Clear(); |
56 | |
57 | for (TopExp_Explorer anIter (theShape1, TopAbs_FACE); anIter.More(); anIter.Next()) |
58 | { |
59 | myFaceList1.Append (static_cast<const TopoDS_Face&> (anIter.Current())); |
60 | } |
61 | |
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62 | myOverlapTool.MarkDirty(); |
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63 | |
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64 | return myIsInitS1 = myElementSet1->Init (myFaceList1); |
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65 | } |
66 | |
67 | //======================================================================= |
68 | //function : LoadShape2 |
69 | //purpose : Loads 2nd shape into proximity tool |
70 | //======================================================================= |
71 | Standard_Boolean BRepExtrema_ShapeProximity::LoadShape2 (const TopoDS_Shape& theShape2) |
72 | { |
73 | myFaceList2.Clear(); |
74 | |
75 | for (TopExp_Explorer anIter (theShape2, TopAbs_FACE); anIter.More(); anIter.Next()) |
76 | { |
77 | myFaceList2.Append (static_cast<const TopoDS_Face&> (anIter.Current())); |
78 | } |
79 | |
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80 | myOverlapTool.MarkDirty(); |
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81 | |
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82 | return myIsInitS2 = myElementSet2->Init (myFaceList2); |
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83 | } |
84 | |
85 | //======================================================================= |
86 | //function : Perform |
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87 | //purpose : Performs search of overlapped faces |
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88 | //======================================================================= |
89 | void BRepExtrema_ShapeProximity::Perform() |
90 | { |
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91 | if (!myIsInitS1 || !myIsInitS2 || myOverlapTool.IsDone()) |
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92 | { |
93 | return; |
94 | } |
95 | |
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96 | myOverlapTool.LoadTriangleSets (myElementSet1, |
97 | myElementSet2); |
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98 | |
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99 | myOverlapTool.Perform (myTolerance); |
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100 | } |