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1 | // Created on: 1993-06-17 |
2 | // Created by: Jean Yves LEBEY |
3 | // Copyright (c) 1993-1999 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 | |
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18 | #include <BRep_Tool.hxx> |
19 | #include <BRepAdaptor_Surface.hxx> |
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20 | #include <Precision.hxx> |
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21 | #include <Standard_ProgramError.hxx> |
22 | #include <TopExp_Explorer.hxx> |
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23 | #include <TopoDS.hxx> |
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24 | #include <TopoDS_Face.hxx> |
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25 | #include <TopoDS_Shape.hxx> |
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26 | #include <TopoDS_Shell.hxx> |
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27 | #include <TopoDS_Vertex.hxx> |
28 | #include <TopOpeBRepBuild_BlockBuilder.hxx> |
29 | #include <TopOpeBRepBuild_ShellFaceClassifier.hxx> |
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30 | |
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31 | #ifdef OCCT_DEBUG |
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32 | extern Standard_Boolean TopOpeBRepBuild_GettraceCHK(); |
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33 | #endif |
34 | |
35 | //======================================================================= |
36 | //function : TopOpeBRepBuild_ShellFaceClassifier |
37 | //purpose : |
38 | //======================================================================= |
39 | |
40 | TopOpeBRepBuild_ShellFaceClassifier::TopOpeBRepBuild_ShellFaceClassifier |
41 | (const TopOpeBRepBuild_BlockBuilder& BB) : |
42 | TopOpeBRepBuild_CompositeClassifier(BB) |
43 | { |
44 | } |
45 | |
46 | //======================================================================= |
47 | //function : Clear |
48 | //purpose : |
49 | //======================================================================= |
50 | |
51 | void TopOpeBRepBuild_ShellFaceClassifier::Clear() |
52 | { |
53 | mySolidClassifier.Clear(); |
54 | myFaceShellMap.Clear(); |
55 | } |
56 | |
57 | //======================================================================= |
58 | //function : CompareShapes |
59 | //purpose : |
60 | //======================================================================= |
61 | |
62 | TopAbs_State TopOpeBRepBuild_ShellFaceClassifier::CompareShapes |
63 | (const TopoDS_Shape& B1, const TopoDS_Shape& B2) |
64 | { |
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65 | #ifdef OCCT_DEBUG |
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66 | // const TopAbs_ShapeEnum t1 = B1.ShapeType(); |
67 | // const TopAbs_ShapeEnum t2 = B2.ShapeType(); |
68 | #endif |
69 | |
70 | ResetShape(B1); |
71 | myShell = TopoDS::Shell(B2); |
72 | mySolidClassifier.LoadShell(myShell); |
73 | // myShell.Free(Standard_True); |
74 | TopAbs_State state = State(); |
75 | return state; |
76 | } |
77 | |
78 | |
79 | //======================================================================= |
80 | //function : CompareElementToShape |
81 | //purpose : |
82 | //======================================================================= |
83 | |
84 | TopAbs_State TopOpeBRepBuild_ShellFaceClassifier::CompareElementToShape |
85 | (const TopoDS_Shape& F, const TopoDS_Shape& SHE) |
86 | { |
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87 | #ifdef OCCT_DEBUG |
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88 | // const TopAbs_ShapeEnum t1 = F.ShapeType(); |
89 | // const TopAbs_ShapeEnum t2 = SHE.ShapeType(); |
90 | #endif |
91 | |
92 | ResetElement(F); |
93 | myShell = TopoDS::Shell(SHE); |
94 | mySolidClassifier.LoadShell(myShell); |
95 | // myShell.Free(Standard_True); |
96 | TopAbs_State state = State(); |
97 | return state; |
98 | } |
99 | |
100 | |
101 | //======================================================================= |
102 | //function : ResetShape |
103 | //purpose : |
104 | //======================================================================= |
105 | |
106 | void TopOpeBRepBuild_ShellFaceClassifier::ResetShape(const TopoDS_Shape& SHE) |
107 | { |
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108 | #ifdef OCCT_DEBUG |
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109 | // const TopAbs_ShapeEnum t1 = SHE.ShapeType(); |
110 | #endif |
111 | |
112 | TopExp_Explorer ex(SHE,TopAbs_FACE); |
113 | const TopoDS_Face& F = TopoDS::Face(ex.Current()); |
114 | ResetElement(F); |
115 | } |
116 | |
117 | |
118 | //======================================================================= |
119 | //function : ResetElement |
120 | //purpose : |
121 | //======================================================================= |
122 | |
123 | void TopOpeBRepBuild_ShellFaceClassifier::ResetElement(const TopoDS_Shape& F) |
124 | { |
125 | const TopAbs_ShapeEnum t = F.ShapeType(); |
126 | |
127 | |
128 | // initialize myPoint3d with first vertex of face <E> |
129 | myFirstCompare = Standard_True; |
130 | |
131 | TopExp_Explorer ex(F,TopAbs_VERTEX); |
132 | if ( ex.More() ) { |
133 | const TopoDS_Vertex& V = TopoDS::Vertex(ex.Current()); |
134 | myPoint3d = BRep_Tool::Pnt(V); |
135 | } |
136 | else { |
137 | if(t == TopAbs_FACE) { |
138 | BRepAdaptor_Surface BAS(TopoDS::Face(F)); |
139 | myPoint3d = BAS.Value(.5*(BAS.FirstUParameter()+BAS.LastUParameter()), |
140 | .5*(BAS.FirstVParameter()+BAS.LastVParameter())); |
141 | } |
142 | else { |
143 | myPoint3d.SetCoord(0.,0.,0.); |
144 | } |
145 | } |
146 | |
147 | } |
148 | |
149 | //======================================================================= |
150 | //function : CompareElement |
151 | //purpose : |
152 | //======================================================================= |
153 | |
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154 | Standard_Boolean TopOpeBRepBuild_ShellFaceClassifier::CompareElement(const TopoDS_Shape& F) |
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155 | { |
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156 | #ifdef OCCT_DEBUG |
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157 | // const TopAbs_ShapeEnum t = F.ShapeType(); |
158 | #endif |
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159 | Standard_Boolean bRet = Standard_True; |
160 | // |
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161 | if (myFirstCompare) { |
162 | Standard_Boolean found = myFaceShellMap.IsBound(F); |
163 | if ( !found ) { |
164 | // la face F est la premiere d'un bloc de faces |
165 | // la face F d'un bloc de faces (F est supposee n'appartenir qu'a |
166 | // un seul shell) n'a pas encore ete rencontree <=> le bloc de faces |
167 | // dont F fait partie n'a pas encore ete shellise |
168 | // on cree un shell et on l'attache a F |
169 | myBuilder.MakeShell(myShell); |
170 | myBuilder.Add(myShell,F); |
171 | myFaceShellMap.Bind(F,myShell); |
172 | } |
173 | else { |
174 | // la face F est la premiere d'un bloc de faces |
175 | // on recupere le shell correspondant au bloc de faces (shellise) |
176 | // dont F fait partie. |
177 | TopoDS_Shape sbid = myFaceShellMap.Find(F); |
178 | myShell = TopoDS::Shell(sbid); |
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179 | bRet = !bRet; |
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180 | } |
181 | myFirstCompare = Standard_False; |
182 | } |
183 | else { |
184 | // F n'est pas la premiere face d'un bloc. |
185 | // myShell est necessairement defini et represente le bloc de faces |
186 | // dont F fait partie |
187 | myBuilder.Add(myShell,F); |
188 | } |
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189 | return bRet; |
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190 | } |
191 | |
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192 | #ifdef OCCT_DEBUG |
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193 | #include <BRepTools.hxx> |
194 | #include <BRep_Builder.hxx> |
195 | #include <TCollection_AsciiString.hxx> |
196 | static Standard_Integer STATIC_ishell = 0; |
197 | #endif |
198 | |
199 | //======================================================================= |
200 | //function : State |
201 | //purpose : |
202 | //======================================================================= |
203 | |
204 | TopAbs_State TopOpeBRepBuild_ShellFaceClassifier::State() |
205 | { |
206 | TopAbs_State state; |
207 | Standard_Real tol3d = Precision::Confusion(); |
208 | |
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209 | #ifdef OCCT_DEBUG |
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210 | if (TopOpeBRepBuild_GettraceCHK()) { |
211 | STATIC_ishell++; |
212 | TCollection_AsciiString home("/home/wb/mdl/gti/prod/TTOPOPE/src/test/data/"); |
213 | TCollection_AsciiString sname("shell_"); sname = home + sname + STATIC_ishell; |
214 | TCollection_AsciiString vname("vertex_"); vname = home + vname + STATIC_ishell; |
215 | BRep_Builder B;TopoDS_Vertex V;B.MakeVertex(V,myPoint3d,tol3d); |
216 | cout<<"TopOpeBRepBuild_ShellFaceClassifier : write shell "<<sname; |
217 | cout<<" vertex "<<vname<<endl; |
218 | BRepTools::Write(myShell,sname.ToCString()); |
219 | BRepTools::Write(V,vname.ToCString()); |
220 | } |
221 | #endif |
222 | mySolidClassifier.Classify(myShell,myPoint3d,tol3d); |
223 | state = mySolidClassifier.State(); |
224 | return state; |
225 | } |