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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 | #include <ShapeUpgrade_FaceDivideArea.ixx> |
15 | #include <GProp_GProps.hxx> |
16 | #include <BRepGProp.hxx> |
17 | #include <Precision.hxx> |
18 | #include <ShapeUpgrade_SplitSurfaceArea.hxx> |
19 | #include <TopoDS_Shape.hxx> |
20 | #include <TopExp_Explorer.hxx> |
21 | #include <TopoDS.hxx> |
22 | #include <ShapeExtend.hxx> |
23 | #include <ShapeBuild_ReShape.hxx> |
24 | #include <BRep_Builder.hxx> |
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25 | |
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26 | //======================================================================= |
27 | //function : ShapeUpgrade_FaceDivideArea |
28 | //purpose : |
29 | //======================================================================= |
30 | |
31 | ShapeUpgrade_FaceDivideArea::ShapeUpgrade_FaceDivideArea() |
32 | { |
33 | myMaxArea = Precision::Infinite(); |
34 | SetPrecision(1.e-5); |
35 | SetSplitSurfaceTool (new ShapeUpgrade_SplitSurfaceArea); |
36 | } |
37 | |
38 | //======================================================================= |
39 | //function : ShapeUpgrade_FaceDivideArea |
40 | //purpose : |
41 | //======================================================================= |
42 | |
43 | ShapeUpgrade_FaceDivideArea::ShapeUpgrade_FaceDivideArea(const TopoDS_Face& F) |
44 | { |
45 | myMaxArea = Precision::Infinite(); |
46 | SetPrecision(1.e-5); |
47 | SetSplitSurfaceTool (new ShapeUpgrade_SplitSurfaceArea); |
48 | Init(F); |
49 | } |
50 | |
51 | //======================================================================= |
52 | //function : Perform |
53 | //purpose : |
54 | //======================================================================= |
55 | |
56 | Standard_Boolean ShapeUpgrade_FaceDivideArea::Perform() |
57 | { |
58 | myStatus = ShapeExtend::EncodeStatus ( ShapeExtend_OK ); |
59 | GProp_GProps aGprop; |
60 | |
61 | BRepGProp::SurfaceProperties(myFace,aGprop,Precision()); |
62 | Standard_Real anArea = aGprop.Mass(); |
63 | if((anArea - myMaxArea) < Precision::Confusion()) |
64 | return Standard_False; |
65 | |
66 | Standard_Integer anbParts = RealToInt(ceil(anArea/myMaxArea)); |
67 | Handle(ShapeUpgrade_SplitSurfaceArea) aSurfTool= Handle(ShapeUpgrade_SplitSurfaceArea):: |
68 | DownCast(GetSplitSurfaceTool ()); |
69 | if(aSurfTool.IsNull()) |
70 | return Standard_False; |
71 | aSurfTool->NbParts() = anbParts; |
72 | if(!ShapeUpgrade_FaceDivide::Perform()) |
73 | return Standard_False; |
74 | |
75 | TopoDS_Shape aResult = Result(); |
76 | if(aResult.ShapeType() == TopAbs_FACE) |
77 | return Standard_False; |
78 | Standard_Integer aStatus = myStatus; |
79 | TopExp_Explorer aExpF(aResult,TopAbs_FACE); |
80 | TopoDS_Shape aCopyRes = aResult.EmptyCopied(); |
81 | |
82 | Standard_Boolean isModified = Standard_False; |
83 | for( ; aExpF.More() ; aExpF.Next()) { |
84 | TopoDS_Shape aSh = Context()->Apply(aExpF.Current()); |
85 | TopoDS_Face aFace = TopoDS::Face(aSh); |
86 | Init(aFace); |
87 | BRep_Builder aB; |
88 | if(Perform()) { |
89 | isModified = Standard_True; |
90 | TopoDS_Shape aRes = Result(); |
91 | TopExp_Explorer aExpR(aRes,TopAbs_FACE); |
92 | for( ; aExpR.More(); aExpR.Next()) |
93 | aB.Add(aCopyRes,aExpR.Current()); |
94 | } |
95 | else |
96 | aB.Add(aCopyRes,aFace); |
97 | } |
98 | if(isModified) |
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99 | { |
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100 | if (aCopyRes.ShapeType() == TopAbs_WIRE || aCopyRes.ShapeType() == TopAbs_SHELL) |
101 | aCopyRes.Closed (BRep_Tool::IsClosed (aCopyRes)); |
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102 | Context()->Replace(aResult,aCopyRes); |
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103 | } |
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104 | myStatus |= aStatus; |
105 | myResult = Context()->Apply ( aResult ); |
106 | return Status ( ShapeExtend_DONE ); |
107 | } |
108 | |