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1 | // Created on: 1995-09-19 |
2 | // Created by: Laurent PAINNOT |
3 | // Copyright (c) 1995-1999 Matra Datavision |
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4 | // Copyright (c) 1999-2014 OPEN CASCADE SAS |
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5 | // |
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6 | // This file is part of Open CASCADE Technology software library. |
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7 | // |
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8 | // This library is free software; you can redistribute it and/or modify it under |
9 | // the terms of the GNU Lesser General Public License version 2.1 as published |
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10 | // by the Free Software Foundation, with special exception defined in the file |
11 | // OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT |
12 | // distribution for complete text of the license and disclaimer of any warranty. |
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13 | // |
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14 | // Alternatively, this file may be used under the terms of Open CASCADE |
15 | // commercial license or contractual agreement. |
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16 | |
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17 | #include <StdPrs_HLRPolyShape.hxx> |
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18 | |
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19 | #include <BRepMesh_IncrementalMesh.hxx> |
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20 | #include <Graphic3d_ArrayOfSegments.hxx> |
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21 | #include <Graphic3d_Group.hxx> |
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22 | #include <HLRAlgo_EdgeIterator.hxx> |
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23 | #include <HLRAlgo_EdgeStatus.hxx> |
24 | #include <HLRBRep_BiPoint.hxx> |
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25 | #include <HLRBRep_ListIteratorOfListOfBPoint.hxx> |
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26 | #include <HLRBRep_ListOfBPoint.hxx> |
27 | #include <HLRBRep_PolyAlgo.hxx> |
28 | #include <Prs3d_LineAspect.hxx> |
29 | #include <Prs3d_Presentation.hxx> |
30 | #include <Prs3d_Projector.hxx> |
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31 | #include <StdPrs_WFShape.hxx> |
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32 | #include <TColgp_SequenceOfPnt.hxx> |
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33 | #include <TopAbs.hxx> |
34 | #include <TopExp_Explorer.hxx> |
35 | #include <TopoDS_Shape.hxx> |
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36 | |
37 | #define PntX1 ((Standard_Real*)Coordinates)[0] |
38 | #define PntY1 ((Standard_Real*)Coordinates)[1] |
39 | #define PntZ1 ((Standard_Real*)Coordinates)[2] |
40 | #define PntX2 ((Standard_Real*)Coordinates)[3] |
41 | #define PntY2 ((Standard_Real*)Coordinates)[4] |
42 | #define PntZ2 ((Standard_Real*)Coordinates)[5] |
43 | |
44 | //======================================================================= |
45 | //function : Add |
46 | //purpose : |
47 | //======================================================================= |
48 | |
49 | void StdPrs_HLRPolyShape::Add(const Handle (Prs3d_Presentation)& aPresentation, |
50 | const TopoDS_Shape& aShape, |
51 | const Handle (Prs3d_Drawer)& aDrawer, |
52 | const Handle (Prs3d_Projector)& aProjector) |
53 | { |
54 | Handle(Graphic3d_Group) aGroup = Prs3d_Root::CurrentGroup(aPresentation); |
55 | |
56 | TopExp_Explorer ex; |
57 | |
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58 | // find vertices not under ancestors. |
59 | TopAbs_ShapeEnum E = aShape.ShapeType(); |
60 | if (E == TopAbs_COMPOUND) { |
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61 | // it is necessary to present isolated vertexes instead of hiding them. |
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62 | for (ex.Init(aShape, TopAbs_VERTEX, TopAbs_EDGE); ex.More(); ex.Next()) { |
63 | StdPrs_WFShape::Add(aPresentation, ex.Current(), aDrawer); |
64 | } |
65 | } |
66 | |
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67 | if (aDrawer->IsAutoTriangulation()) |
68 | { |
69 | const Standard_Boolean aRel = aDrawer->TypeOfDeflection() == Aspect_TOD_RELATIVE; |
70 | Standard_Real aDef = aRel ? aDrawer->HLRDeviationCoefficient() : aDrawer->MaximalChordialDeviation(); |
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71 | BRepMesh_FastDiscret::Parameters aMeshParams; |
72 | aMeshParams.Relative = aRel; |
73 | aMeshParams.Angle = aDrawer->HLRAngle(); |
74 | aMeshParams.Deflection = aDef; |
75 | BRepMesh_IncrementalMesh mesh(aShape, aMeshParams); |
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76 | } |
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77 | |
78 | Handle(HLRBRep_PolyAlgo) hider = new HLRBRep_PolyAlgo(aShape); |
79 | |
80 | hider->Projector(aProjector->Projector()); |
81 | hider->Angle(aDrawer->HLRAngle()); |
82 | hider->Update(); |
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83 | Standard_Real sta,end,dx,dy,dz; |
84 | Standard_ShortReal tolsta, tolend; |
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85 | HLRAlgo_EdgeStatus status; |
86 | HLRAlgo_EdgeIterator It; |
87 | Standard_Boolean reg1,regn,outl, intl; |
88 | Standard_Address Coordinates; |
89 | TopoDS_Shape S; |
90 | |
91 | HLRBRep_ListOfBPoint BiPntVis, BiPntHid; |
92 | |
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93 | for (hider->InitHide(); hider->MoreHide(); hider->NextHide()) |
94 | { |
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95 | Coordinates = &hider->Hide(status, S, reg1, regn, outl, intl); |
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96 | |
97 | dx = PntX2 - PntX1; |
98 | dy = PntY2 - PntY1; |
99 | dz = PntZ2 - PntZ1; |
100 | |
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101 | for (It.InitVisible(status); It.MoreVisible(); It.NextVisible()) |
102 | { |
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103 | It.Visible(sta,tolsta,end,tolend); |
104 | BiPntVis.Append |
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105 | (HLRBRep_BiPoint |
106 | (PntX1 + sta * dx,PntY1 + sta * dy,PntZ1 + sta * dz, |
107 | PntX1 + end * dx,PntY1 + end * dy,PntZ1 + end * dz, |
108 | S,reg1,regn,outl,intl)); |
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109 | } |
110 | |
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111 | for (It.InitHidden(status); It.MoreHidden(); It.NextHidden()) |
112 | { |
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113 | It.Hidden(sta,tolsta,end,tolend); |
114 | BiPntHid.Append |
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115 | (HLRBRep_BiPoint |
116 | (PntX1 + sta * dx,PntY1 + sta * dy,PntZ1 + sta * dz, |
117 | PntX1 + end * dx,PntY1 + end * dy,PntZ1 + end * dz, |
118 | S,reg1,regn,outl,intl)); |
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119 | } |
120 | } |
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121 | |
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122 | // storage in the group |
123 | if (aDrawer->DrawHiddenLine()) |
124 | { |
125 | Standard_Integer aNbHiddenSegments = 0; |
126 | for (HLRBRep_ListIteratorOfListOfBPoint aBPntHidIter (BiPntHid); aBPntHidIter.More(); aBPntHidIter.Next()) |
127 | { |
128 | const HLRBRep_BiPoint& aBPnt = aBPntHidIter.Value(); |
129 | if (!aBPnt.RgNLine() |
130 | || aBPnt.OutLine()) |
131 | { |
132 | ++aNbHiddenSegments; |
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133 | } |
134 | } |
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135 | if (aNbHiddenSegments > 0) |
136 | { |
137 | Handle(Graphic3d_ArrayOfSegments) aHiddenArray = new Graphic3d_ArrayOfSegments (aNbHiddenSegments * 2); |
138 | for (HLRBRep_ListIteratorOfListOfBPoint aBPntHidIter (BiPntHid); aBPntHidIter.More(); aBPntHidIter.Next()) |
139 | { |
140 | const HLRBRep_BiPoint& aBPnt = aBPntHidIter.Value(); |
141 | if (!aBPnt.RgNLine() |
142 | || aBPnt.OutLine()) |
143 | { |
144 | aHiddenArray->AddVertex (aBPnt.P1()); |
145 | aHiddenArray->AddVertex (aBPnt.P2()); |
146 | } |
147 | } |
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148 | |
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149 | aGroup->SetPrimitivesAspect (aDrawer->HiddenLineAspect()->Aspect()); |
150 | aGroup->AddPrimitiveArray (aHiddenArray); |
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151 | } |
152 | } |
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153 | { |
154 | Standard_Integer aNbSeenSegments = 0; |
155 | for (HLRBRep_ListIteratorOfListOfBPoint aBPntVisIter (BiPntVis); aBPntVisIter.More(); aBPntVisIter.Next()) |
156 | { |
157 | const HLRBRep_BiPoint& aBPnt = aBPntVisIter.Value(); |
158 | if (!aBPnt.RgNLine() |
159 | || aBPnt.OutLine()) |
160 | { |
161 | ++aNbSeenSegments; |
162 | } |
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163 | } |
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164 | if (aNbSeenSegments > 0) |
165 | { |
166 | Handle(Graphic3d_ArrayOfSegments) aSeenArray = new Graphic3d_ArrayOfSegments (aNbSeenSegments * 2); |
167 | for (HLRBRep_ListIteratorOfListOfBPoint aBPntVisIter (BiPntVis); aBPntVisIter.More(); aBPntVisIter.Next()) |
168 | { |
169 | const HLRBRep_BiPoint& aBPnt = aBPntVisIter.Value(); |
170 | if (!aBPnt.RgNLine() |
171 | || aBPnt.OutLine()) |
172 | { |
173 | aSeenArray->AddVertex (aBPnt.P1()); |
174 | aSeenArray->AddVertex (aBPnt.P2()); |
175 | } |
176 | } |
177 | aGroup->SetPrimitivesAspect (aDrawer->SeenLineAspect()->Aspect()); |
178 | aGroup->AddPrimitiveArray (aSeenArray); |
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179 | } |
180 | } |
181 | } |