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1 | // Copyright (c) 1999-2014 OPEN CASCADE SAS |
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2 | // |
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3 | // This file is part of Open CASCADE Technology software library. |
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4 | // |
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5 | // This library is free software; you can redistribute it and/or modify it under |
6 | // the terms of the GNU Lesser General Public License version 2.1 as published |
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7 | // by the Free Software Foundation, with special exception defined in the file |
8 | // OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT |
9 | // distribution for complete text of the license and disclaimer of any warranty. |
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10 | // |
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11 | // Alternatively, this file may be used under the terms of Open CASCADE |
12 | // commercial license or contractual agreement. |
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13 | |
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14 | |
15 | #include <BRep_Builder.hxx> |
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16 | #include <BRepGProp.hxx> |
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17 | #include <GProp_GProps.hxx> |
18 | #include <Precision.hxx> |
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19 | #include <ShapeBuild_ReShape.hxx> |
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20 | #include <ShapeExtend.hxx> |
21 | #include <ShapeUpgrade_FaceDivideArea.hxx> |
22 | #include <ShapeUpgrade_SplitSurfaceArea.hxx> |
23 | #include <Standard_Type.hxx> |
24 | #include <TopExp_Explorer.hxx> |
25 | #include <TopoDS.hxx> |
26 | #include <TopoDS_Face.hxx> |
27 | #include <TopoDS_Shape.hxx> |
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28 | |
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29 | //======================================================================= |
30 | //function : ShapeUpgrade_FaceDivideArea |
31 | //purpose : |
32 | //======================================================================= |
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33 | ShapeUpgrade_FaceDivideArea::ShapeUpgrade_FaceDivideArea() |
34 | { |
35 | myMaxArea = Precision::Infinite(); |
36 | SetPrecision(1.e-5); |
37 | SetSplitSurfaceTool (new ShapeUpgrade_SplitSurfaceArea); |
38 | } |
39 | |
40 | //======================================================================= |
41 | //function : ShapeUpgrade_FaceDivideArea |
42 | //purpose : |
43 | //======================================================================= |
44 | |
45 | ShapeUpgrade_FaceDivideArea::ShapeUpgrade_FaceDivideArea(const TopoDS_Face& F) |
46 | { |
47 | myMaxArea = Precision::Infinite(); |
48 | SetPrecision(1.e-5); |
49 | SetSplitSurfaceTool (new ShapeUpgrade_SplitSurfaceArea); |
50 | Init(F); |
51 | } |
52 | |
53 | //======================================================================= |
54 | //function : Perform |
55 | //purpose : |
56 | //======================================================================= |
57 | |
58 | Standard_Boolean ShapeUpgrade_FaceDivideArea::Perform() |
59 | { |
60 | myStatus = ShapeExtend::EncodeStatus ( ShapeExtend_OK ); |
61 | GProp_GProps aGprop; |
62 | |
63 | BRepGProp::SurfaceProperties(myFace,aGprop,Precision()); |
64 | Standard_Real anArea = aGprop.Mass(); |
65 | if((anArea - myMaxArea) < Precision::Confusion()) |
66 | return Standard_False; |
67 | |
68 | Standard_Integer anbParts = RealToInt(ceil(anArea/myMaxArea)); |
69 | Handle(ShapeUpgrade_SplitSurfaceArea) aSurfTool= Handle(ShapeUpgrade_SplitSurfaceArea):: |
70 | DownCast(GetSplitSurfaceTool ()); |
71 | if(aSurfTool.IsNull()) |
72 | return Standard_False; |
73 | aSurfTool->NbParts() = anbParts; |
74 | if(!ShapeUpgrade_FaceDivide::Perform()) |
75 | return Standard_False; |
76 | |
77 | TopoDS_Shape aResult = Result(); |
78 | if(aResult.ShapeType() == TopAbs_FACE) |
79 | return Standard_False; |
80 | Standard_Integer aStatus = myStatus; |
81 | TopExp_Explorer aExpF(aResult,TopAbs_FACE); |
82 | TopoDS_Shape aCopyRes = aResult.EmptyCopied(); |
83 | |
84 | Standard_Boolean isModified = Standard_False; |
85 | for( ; aExpF.More() ; aExpF.Next()) { |
86 | TopoDS_Shape aSh = Context()->Apply(aExpF.Current()); |
87 | TopoDS_Face aFace = TopoDS::Face(aSh); |
88 | Init(aFace); |
89 | BRep_Builder aB; |
90 | if(Perform()) { |
91 | isModified = Standard_True; |
92 | TopoDS_Shape aRes = Result(); |
93 | TopExp_Explorer aExpR(aRes,TopAbs_FACE); |
94 | for( ; aExpR.More(); aExpR.Next()) |
95 | aB.Add(aCopyRes,aExpR.Current()); |
96 | } |
97 | else |
98 | aB.Add(aCopyRes,aFace); |
99 | } |
100 | if(isModified) |
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101 | { |
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102 | if (aCopyRes.ShapeType() == TopAbs_WIRE || aCopyRes.ShapeType() == TopAbs_SHELL) |
103 | aCopyRes.Closed (BRep_Tool::IsClosed (aCopyRes)); |
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104 | Context()->Replace(aResult,aCopyRes); |
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105 | } |
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106 | myStatus |= aStatus; |
107 | myResult = Context()->Apply ( aResult ); |
108 | return Status ( ShapeExtend_DONE ); |
109 | } |
110 | |