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1 | // Created by: Peter KURNEV |
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2 | // Copyright (c) 2010-2014 OPEN CASCADE SAS |
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3 | // Copyright (c) 2007-2010 CEA/DEN, EDF R&D, OPEN CASCADE |
4 | // Copyright (c) 2003-2007 OPEN CASCADE, EADS/CCR, LIP6, CEA/DEN, CEDRAT, |
5 | // EDF R&D, LEG, PRINCIPIA R&D, BUREAU VERITAS |
6 | // |
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7 | // This file is part of Open CASCADE Technology software library. |
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8 | // |
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9 | // This library is free software; you can redistribute it and/or modify it under |
10 | // the terms of the GNU Lesser General Public License version 2.1 as published |
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11 | // by the Free Software Foundation, with special exception defined in the file |
12 | // OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT |
13 | // distribution for complete text of the license and disclaimer of any warranty. |
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14 | // |
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15 | // Alternatively, this file may be used under the terms of Open CASCADE |
16 | // commercial license or contractual agreement. |
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17 | |
18 | #include <BOPAlgo_BuilderSolid.ixx> |
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19 | // |
20 | #include <NCollection_List.hxx> |
21 | #include <NCollection_DataMap.hxx> |
22 | #include <NCollection_UBTreeFiller.hxx> |
23 | // |
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24 | #include <gp_Pnt2d.hxx> |
25 | #include <gp_Pln.hxx> |
26 | #include <gp_Vec.hxx> |
27 | #include <gp_Dir.hxx> |
28 | #include <gp_Pnt.hxx> |
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29 | // |
30 | #include <TColStd_MapIntegerHasher.hxx> |
31 | // |
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32 | #include <Geom_Curve.hxx> |
33 | #include <Geom_Surface.hxx> |
34 | #include <Geom2d_Curve.hxx> |
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35 | // |
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36 | #include <TopAbs.hxx> |
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37 | // |
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38 | #include <TopoDS_Iterator.hxx> |
39 | #include <TopoDS_Face.hxx> |
40 | #include <TopoDS_Shape.hxx> |
41 | #include <TopoDS_Shell.hxx> |
42 | #include <TopoDS_Edge.hxx> |
43 | #include <TopoDS_Solid.hxx> |
44 | #include <TopoDS_Vertex.hxx> |
45 | #include <TopoDS_Compound.hxx> |
46 | |
47 | #include <BRep_Builder.hxx> |
48 | #include <BRep_Tool.hxx> |
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49 | // |
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50 | #include <TopExp.hxx> |
51 | #include <TopExp_Explorer.hxx> |
52 | // |
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53 | #include <BRepBndLib.hxx> |
54 | #include <BRepClass3d_SolidClassifier.hxx> |
55 | // |
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56 | #include <BOPCol_IndexedDataMapOfShapeListOfShape.hxx> |
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57 | #include <BOPCol_ListOfShape.hxx> |
58 | #include <BOPCol_MapOfOrientedShape.hxx> |
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59 | #include <BOPCol_DataMapOfShapeShape.hxx> |
60 | #include <BOPCol_DataMapOfShapeListOfShape.hxx> |
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61 | #include <BOPCol_MapOfShape.hxx> |
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62 | #include <BOPCol_BoxBndTree.hxx> |
63 | #include <BOPCol_ListOfInteger.hxx> |
64 | // |
65 | #include <BOPTools.hxx> |
66 | #include <BOPTools_CoupleOfShape.hxx> |
67 | #include <BOPTools_AlgoTools.hxx> |
68 | // |
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69 | #include <IntTools_Context.hxx> |
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70 | // |
71 | #include <BOPAlgo_ShellSplitter.hxx> |
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72 | |
73 | static |
74 | Standard_Boolean IsGrowthShell(const TopoDS_Shape& , |
75 | const BOPCol_IndexedMapOfShape& ); |
76 | static |
77 | Standard_Boolean IsHole(const TopoDS_Shape& , |
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78 | Handle(IntTools_Context)& ); |
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79 | static |
80 | Standard_Boolean IsInside(const TopoDS_Shape& , |
81 | const TopoDS_Shape& , |
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82 | Handle(IntTools_Context)& ); |
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83 | static |
84 | void MakeInternalShells(const BOPCol_MapOfShape& , |
85 | BOPCol_ListOfShape& ); |
86 | |
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87 | //======================================================================= |
88 | //class : BOPAlgo_BuilderSolid_ShapeBox |
89 | //purpose : Auxiliary class |
90 | //======================================================================= |
91 | class BOPAlgo_BuilderSolid_ShapeBox { |
92 | public: |
93 | BOPAlgo_BuilderSolid_ShapeBox() { |
94 | myIsHole=Standard_False; |
95 | }; |
96 | // |
97 | ~BOPAlgo_BuilderSolid_ShapeBox() { |
98 | }; |
99 | // |
100 | void SetShape(const TopoDS_Shape& aS) { |
101 | myShape=aS; |
102 | }; |
103 | // |
104 | const TopoDS_Shape& Shape()const { |
105 | return myShape; |
106 | }; |
107 | // |
108 | void SetBox(const Bnd_Box& aBox) { |
109 | myBox=aBox; |
110 | }; |
111 | // |
112 | const Bnd_Box& Box()const { |
113 | return myBox; |
114 | }; |
115 | // |
116 | void SetIsHole(const Standard_Boolean bFlag) { |
117 | myIsHole=bFlag; |
118 | }; |
119 | // |
120 | Standard_Boolean IsHole()const { |
121 | return myIsHole; |
122 | }; |
123 | // |
124 | protected: |
125 | Standard_Boolean myIsHole; |
126 | TopoDS_Shape myShape; |
127 | Bnd_Box myBox; |
128 | }; |
129 | // |
130 | typedef NCollection_DataMap\ |
131 | <Standard_Integer, BOPAlgo_BuilderSolid_ShapeBox, TColStd_MapIntegerHasher> \ |
132 | BOPAlgo_DataMapOfIntegerBSSB; |
133 | // |
134 | typedef BOPAlgo_DataMapOfIntegerBSSB::Iterator \ |
135 | BOPAlgo_DataMapIteratorOfDataMapOfIntegerBSSB; |
136 | // |
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137 | //======================================================================= |
138 | //function : |
139 | //purpose : |
140 | //======================================================================= |
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141 | BOPAlgo_BuilderSolid::BOPAlgo_BuilderSolid() |
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142 | : |
143 | BOPAlgo_BuilderArea() |
144 | { |
145 | } |
146 | //======================================================================= |
147 | //function : |
148 | //purpose : |
149 | //======================================================================= |
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150 | BOPAlgo_BuilderSolid::BOPAlgo_BuilderSolid |
151 | (const Handle(NCollection_BaseAllocator)& theAllocator) |
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152 | : |
153 | BOPAlgo_BuilderArea(theAllocator) |
154 | { |
155 | } |
156 | //======================================================================= |
157 | //function : ~ |
158 | //purpose : |
159 | //======================================================================= |
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160 | BOPAlgo_BuilderSolid::~BOPAlgo_BuilderSolid() |
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161 | { |
162 | } |
163 | //======================================================================= |
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164 | //function : SetSolid |
165 | //purpose : |
166 | //======================================================================= |
167 | void BOPAlgo_BuilderSolid::SetSolid(const TopoDS_Solid& aS) |
168 | { |
169 | mySolid=aS; |
170 | } |
171 | //======================================================================= |
172 | //function : Solid |
173 | //purpose : |
174 | //======================================================================= |
175 | const TopoDS_Solid& BOPAlgo_BuilderSolid::Solid()const |
176 | { |
177 | return mySolid; |
178 | } |
179 | //======================================================================= |
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180 | //function : Perform |
181 | //purpose : |
182 | //======================================================================= |
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183 | void BOPAlgo_BuilderSolid::Perform() |
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184 | { |
185 | myErrorStatus=0; |
186 | // |
187 | if (myContext.IsNull()) { |
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188 | myContext=new IntTools_Context; |
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189 | } |
190 | // |
191 | TopoDS_Compound aC; |
192 | BRep_Builder aBB; |
193 | BOPCol_ListIteratorOfListOfShape aIt; |
194 | // |
195 | aBB.MakeCompound(aC); |
196 | aIt.Initialize(myShapes); |
197 | for(; aIt.More(); aIt.Next()) { |
198 | const TopoDS_Shape& aF=aIt.Value(); |
199 | aBB.Add(aC, aF); |
200 | } |
201 | // |
202 | // |
203 | PerformShapesToAvoid(); |
204 | if (myErrorStatus) { |
205 | return; |
206 | } |
207 | // |
208 | PerformLoops(); |
209 | if (myErrorStatus) { |
210 | return; |
211 | } |
212 | PerformAreas(); |
213 | if (myErrorStatus) { |
214 | return; |
215 | } |
216 | PerformInternalShapes(); |
217 | if (myErrorStatus) { |
218 | return; |
219 | } |
220 | } |
221 | //======================================================================= |
222 | //function :PerformShapesToAvoid |
223 | //purpose : |
224 | //======================================================================= |
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225 | void BOPAlgo_BuilderSolid::PerformShapesToAvoid() |
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226 | { |
227 | Standard_Boolean bFound; |
228 | Standard_Integer i, iCnt, aNbE, aNbF; |
229 | TopAbs_Orientation aOrE; |
230 | BOPCol_IndexedDataMapOfShapeListOfShape aMEF; |
231 | BOPCol_ListIteratorOfListOfShape aIt; |
232 | // |
233 | myShapesToAvoid.Clear(); |
234 | // |
235 | iCnt=0; |
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236 | for(;;) { |
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237 | ++iCnt; |
238 | bFound=Standard_False; |
239 | // |
240 | // 1. MEF |
241 | aMEF.Clear(); |
242 | aIt.Initialize (myShapes); |
243 | for (; aIt.More(); aIt.Next()) { |
244 | const TopoDS_Shape& aF=aIt.Value(); |
245 | if (!myShapesToAvoid.Contains(aF)) { |
246 | BOPTools::MapShapesAndAncestors(aF, TopAbs_EDGE, TopAbs_FACE, aMEF); |
247 | } |
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248 | } |
249 | aNbE=aMEF.Extent(); |
250 | // |
251 | // 2. myFacesToAvoid |
252 | for (i=1; i<=aNbE; ++i) { |
253 | const TopoDS_Edge& aE=(*(TopoDS_Edge*)(&aMEF.FindKey(i))); |
254 | if (BRep_Tool::Degenerated(aE)) { |
255 | continue; |
256 | } |
257 | // |
258 | BOPCol_ListOfShape& aLF=aMEF.ChangeFromKey(aE); |
259 | aNbF=aLF.Extent(); |
260 | if (!aNbF) { |
261 | continue; |
262 | } |
263 | // |
264 | aOrE=aE.Orientation(); |
265 | // |
266 | const TopoDS_Face& aF1=(*(TopoDS_Face*)(&aLF.First())); |
267 | if (aNbF==1) { |
268 | if (aOrE==TopAbs_INTERNAL) { |
269 | continue; |
270 | } |
271 | bFound=Standard_True; |
272 | myShapesToAvoid.Add(aF1); |
273 | } |
274 | else if (aNbF==2) { |
275 | const TopoDS_Face& aF2=(*(TopoDS_Face*)(&aLF.Last())); |
276 | if (aF2.IsSame(aF1)) { |
277 | if (BRep_Tool::IsClosed(aE, aF1)) { |
278 | continue; |
279 | } |
280 | // |
281 | if (aOrE==TopAbs_INTERNAL) { |
282 | continue; |
283 | } |
284 | // |
285 | bFound=Standard_True; |
286 | myShapesToAvoid.Add(aF1); |
287 | myShapesToAvoid.Add(aF2); |
288 | } |
289 | } |
290 | }// for (i=1; i<=aNbE; ++i) { |
291 | // |
292 | if (!bFound) { |
293 | break; |
294 | } |
295 | // |
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296 | }//for(;;) { |
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297 | } |
298 | //======================================================================= |
299 | //function : PerformLoops |
300 | //purpose : |
301 | //======================================================================= |
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302 | void BOPAlgo_BuilderSolid::PerformLoops() |
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303 | { |
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304 | Standard_Integer iErr; |
305 | BOPCol_ListIteratorOfListOfShape aIt; |
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306 | TopoDS_Iterator aItS; |
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307 | BOPCol_MapIteratorOfMapOfOrientedShape aItM; |
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308 | BOPAlgo_ShellSplitter aSSp; |
309 | // |
310 | myErrorStatus=0; |
311 | myLoops.Clear(); |
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312 | // |
313 | // 1. Shells Usual |
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314 | aIt.Initialize (myShapes); |
315 | for (; aIt.More(); aIt.Next()) { |
316 | const TopoDS_Shape& aF=aIt.Value(); |
317 | if (!myShapesToAvoid.Contains(aF)) { |
318 | aSSp.AddStartElement(aF); |
319 | } |
320 | } |
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321 | // |
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322 | aSSp.SetRunParallel(myRunParallel); |
323 | aSSp.Perform(); |
324 | iErr=aSSp.ErrorStatus(); |
325 | if (iErr) { |
326 | return; |
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327 | } |
328 | // |
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329 | const BOPCol_ListOfShape& aLSh=aSSp.Shells(); |
330 | aIt.Initialize (aLSh); |
331 | for (; aIt.More(); aIt.Next()) { |
332 | const TopoDS_Shape& aSh=aIt.Value(); |
333 | myLoops.Append(aSh); |
334 | } |
335 | //================================================= |
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336 | // |
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337 | // 2. Post Treatment |
338 | Standard_Integer aNbFA; |
339 | BRep_Builder aBB; |
340 | BOPCol_MapOfOrientedShape AddedFacesMap; |
341 | BOPCol_IndexedDataMapOfShapeListOfShape aEFMap; |
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342 | BOPCol_MapOfOrientedShape aMP; |
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343 | // |
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344 | // a. collect all edges that are in loops |
345 | aIt.Initialize (myLoops); |
346 | for (; aIt.More(); aIt.Next()) { |
347 | const TopoDS_Shape& aS=aIt.Value(); |
348 | aItS.Initialize(aS); |
349 | for (; aItS.More(); aItS.Next()) { |
350 | const TopoDS_Shape& aF=aItS.Value(); |
351 | aMP.Add(aF); |
352 | } |
353 | } |
354 | // |
355 | // b. collect all edges that are to avoid |
356 | aItM.Initialize(myShapesToAvoid); |
357 | for (; aItM.More(); aItM.Next()) { |
358 | const TopoDS_Shape& aF=aItM.Key(); |
359 | aMP.Add(aF); |
360 | } |
361 | // |
362 | // c. add all edges that are not processed to myShapesToAvoid |
363 | aIt.Initialize (myShapes); |
364 | for (; aIt.More(); aIt.Next()) { |
365 | const TopoDS_Shape& aF=aIt.Value(); |
366 | if (!aMP.Contains(aF)) { |
367 | myShapesToAvoid.Add(aF); |
368 | } |
369 | } |
370 | //================================================= |
371 | // |
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372 | // 3.Internal Shells |
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373 | myLoopsInternal.Clear(); |
374 | // |
375 | aEFMap.Clear(); |
376 | AddedFacesMap.Clear(); |
377 | // |
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378 | aNbFA=myShapesToAvoid.Extent(); |
379 | // |
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380 | aItM.Initialize(myShapesToAvoid); |
381 | for (; aItM.More(); aItM.Next()) { |
382 | const TopoDS_Shape& aFF=aItM.Key(); |
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383 | BOPTools::MapShapesAndAncestors(aFF, |
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384 | TopAbs_EDGE, TopAbs_FACE, |
385 | aEFMap); |
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386 | } |
387 | // |
388 | aItM.Initialize(myShapesToAvoid); |
389 | for (; aItM.More(); aItM.Next()) { |
390 | const TopoDS_Shape& aFF=aItM.Key(); |
391 | if (!AddedFacesMap.Add(aFF)) { |
392 | continue; |
393 | } |
394 | // |
395 | // make a new shell |
396 | TopoDS_Shell aShell; |
397 | aBB.MakeShell(aShell); |
398 | aBB.Add(aShell, aFF); |
399 | // |
400 | TopoDS_Iterator aItAddedF (aShell); |
401 | for (; aItAddedF.More(); aItAddedF.Next()) { |
402 | const TopoDS_Face& aF = (*(TopoDS_Face*)(&aItAddedF.Value())); |
403 | // |
404 | TopExp_Explorer aEdgeExp(aF, TopAbs_EDGE); |
405 | for (; aEdgeExp.More(); aEdgeExp.Next()) { |
406 | const TopoDS_Edge& aE = (*(TopoDS_Edge*)(&aEdgeExp.Current())); |
407 | const BOPCol_ListOfShape& aLF=aEFMap.FindFromKey(aE); |
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408 | aIt.Initialize(aLF); |
409 | for (; aIt.More(); aIt.Next()) { |
410 | const TopoDS_Face& aFL=(*(TopoDS_Face*)(&aIt.Value())); |
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411 | if (AddedFacesMap.Add(aFL)){ |
412 | aBB.Add(aShell, aFL); |
413 | } |
414 | } |
415 | } |
416 | } |
417 | myLoopsInternal.Append(aShell); |
418 | } |
419 | } |
420 | //======================================================================= |
421 | //function : PerformAreas |
422 | //purpose : |
423 | //======================================================================= |
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424 | void BOPAlgo_BuilderSolid::PerformAreas() |
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425 | { |
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426 | Standard_Boolean bIsGrowth, bIsHole; |
427 | Standard_Integer k,aNbHoles; |
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428 | BRep_Builder aBB; |
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429 | BOPCol_ListIteratorOfListOfShape aItLS; |
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430 | BOPCol_ListOfShape aNewSolids, aHoleShells; |
431 | BOPCol_DataMapOfShapeShape aInOutMap; |
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432 | BOPCol_IndexedMapOfShape aMHF; |
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433 | BOPCol_ListIteratorOfListOfInteger aItLI; |
434 | BOPCol_BoxBndTreeSelector aSelector; |
435 | BOPCol_BoxBndTree aBBTree; |
436 | NCollection_UBTreeFiller <Standard_Integer, Bnd_Box> aTreeFiller(aBBTree); |
437 | BOPAlgo_DataMapOfIntegerBSSB aDMISB(100); |
438 | BOPAlgo_DataMapIteratorOfDataMapOfIntegerBSSB aItDMISB; |
439 | BOPCol_DataMapOfShapeListOfShape aMSH; |
440 | BOPCol_DataMapIteratorOfDataMapOfShapeShape aItDMSS; |
441 | BOPCol_DataMapIteratorOfDataMapOfShapeListOfShape aItMSH; |
442 | // |
443 | myErrorStatus=0; |
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444 | // |
445 | myAreas.Clear(); |
446 | // |
447 | // Draft solids [aNewSolids] |
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448 | aItLS.Initialize(myLoops); |
449 | for (k=0; aItLS.More(); aItLS.Next(), ++k) { |
450 | TopoDS_Solid aSolid; |
451 | Bnd_Box aBox; |
452 | BOPAlgo_BuilderSolid_ShapeBox aSB; |
453 | // |
454 | const TopoDS_Shape& aShell = aItLS.Value(); |
455 | aSB.SetShape(aShell); |
456 | // |
457 | BRepBndLib::Add(aShell, aBox); |
458 | bIsHole=Standard_False; |
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459 | // |
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460 | bIsGrowth=IsGrowthShell(aShell, aMHF); |
461 | if (bIsGrowth) { |
4e57c75e |
462 | // make a growth solid from a shell |
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463 | aBB.MakeSolid(aSolid); |
464 | aBB.Add (aSolid, aShell); |
4e57c75e |
465 | // |
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466 | aNewSolids.Append (aSolid); |
467 | aSB.SetShape(aSolid); |
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468 | } |
469 | else{ |
470 | // check if a shell is a hole |
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471 | bIsHole=IsHole(aShell, myContext); |
4e57c75e |
472 | if (bIsHole) { |
473 | aHoleShells.Append(aShell); |
474 | BOPTools::MapShapes(aShell, TopAbs_FACE, aMHF); |
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475 | aSB.SetShape(aShell); |
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476 | } |
477 | else { |
478 | // make a growth solid from a shell |
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479 | aBB.MakeSolid(aSolid); |
480 | aBB.Add (aSolid, aShell); |
4e57c75e |
481 | // |
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482 | aNewSolids.Append (aSolid); |
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483 | aSB.SetShape(aSolid); |
4e57c75e |
484 | } |
485 | } |
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486 | // |
487 | aSB.SetBox(aBox); |
488 | aSB.SetIsHole(bIsHole); |
489 | aDMISB.Bind(k, aSB); |
490 | } |
491 | // |
492 | // 2. Prepare TreeFiller |
493 | aItDMISB.Initialize(aDMISB); |
494 | for (; aItDMISB.More(); aItDMISB.Next()) { |
495 | k=aItDMISB.Key(); |
496 | const BOPAlgo_BuilderSolid_ShapeBox& aSB=aItDMISB.Value(); |
497 | // |
498 | bIsHole=aSB.IsHole(); |
499 | if (bIsHole) { |
500 | const Bnd_Box& aBox=aSB.Box(); |
501 | aTreeFiller.Add(k, aBox); |
502 | } |
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503 | } |
504 | // |
682c9d06 |
505 | // 3. Shake TreeFiller |
506 | aTreeFiller.Fill(); |
507 | // |
508 | // 4. Find outer growth shell that is most close |
509 | // to each hole shell |
510 | aItDMISB.Initialize(aDMISB); |
511 | for (; aItDMISB.More(); aItDMISB.Next()) { |
512 | k=aItDMISB.Key(); |
513 | const BOPAlgo_BuilderSolid_ShapeBox& aSB=aItDMISB.Value(); |
514 | bIsHole=aSB.IsHole(); |
515 | if (bIsHole) { |
516 | continue; |
517 | } |
518 | // |
519 | const TopoDS_Shape aSolid=aSB.Shape(); |
520 | const Bnd_Box& aBoxSolid=aSB.Box(); |
4e57c75e |
521 | // |
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522 | aSelector.Clear(); |
523 | aSelector.SetBox(aBoxSolid); |
524 | // |
525 | aNbHoles=aBBTree.Select(aSelector); |
526 | // |
527 | const BOPCol_ListOfInteger& aLI=aSelector.Indices(); |
528 | // |
529 | aItLI.Initialize(aLI); |
530 | for (; aItLI.More(); aItLI.Next()) { |
531 | k=aItLI.Value(); |
532 | const BOPAlgo_BuilderSolid_ShapeBox& aSBk=aDMISB.Find(k); |
533 | const TopoDS_Shape& aHole=aSBk.Shape(); |
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534 | // |
535 | if (!IsInside(aHole, aSolid, myContext)){ |
536 | continue; |
537 | } |
538 | // |
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539 | if (aInOutMap.IsBound (aHole)){ |
1e143abb |
540 | const TopoDS_Shape& aHole2=aInOutMap(aHole); |
541 | if (IsInside(aHole, aHole2, myContext)) { |
4e57c75e |
542 | aInOutMap.UnBind(aHole); |
543 | aInOutMap.Bind (aHole, aSolid); |
544 | } |
545 | } |
546 | else{ |
682c9d06 |
547 | aInOutMap.Bind(aHole, aSolid); |
4e57c75e |
548 | } |
549 | } |
682c9d06 |
550 | }//for (; aItDMISB.More(); aItDMISB.Next()) { |
551 | // |
552 | // 5. Map [Solid/Holes] -> aMSH |
553 | aItDMSS.Initialize(aInOutMap); |
554 | for (; aItDMSS.More(); aItDMSS.Next()) { |
555 | const TopoDS_Shape& aHole=aItDMSS.Key(); |
556 | const TopoDS_Shape& aSolid=aItDMSS.Value(); |
4e57c75e |
557 | // |
682c9d06 |
558 | if (aMSH.IsBound(aSolid)) { |
559 | BOPCol_ListOfShape& aLH=aMSH.ChangeFind(aSolid); |
560 | aLH.Append(aHole); |
561 | } |
562 | else { |
563 | BOPCol_ListOfShape aLH; |
564 | aLH.Append(aHole); |
565 | aMSH.Bind(aSolid, aLH); |
4e57c75e |
566 | } |
682c9d06 |
567 | } |
4e57c75e |
568 | // |
682c9d06 |
569 | // 6. Add aHoles to Solids |
4e57c75e |
570 | aItMSH.Initialize(aMSH); |
571 | for (; aItMSH.More(); aItMSH.Next()) { |
572 | TopoDS_Solid aSolid=(*(TopoDS_Solid*)(&aItMSH.Key())); |
573 | // |
574 | const BOPCol_ListOfShape& aLH=aItMSH.Value(); |
682c9d06 |
575 | aItLS.Initialize(aLH); |
576 | for (; aItLS.More(); aItLS.Next()) { |
577 | const TopoDS_Shape& aHole = aItLS.Value(); |
4e57c75e |
578 | aBB.Add (aSolid, aHole); |
579 | } |
580 | // |
581 | // update classifier |
682c9d06 |
582 | BRepClass3d_SolidClassifier& aSC= |
583 | myContext->SolidClassifier(aSolid); |
4e57c75e |
584 | aSC.Load(aSolid); |
585 | // |
586 | } |
587 | // |
682c9d06 |
588 | // 7. These aNewSolids are draft solids that |
4e57c75e |
589 | // do not contain any internal shapes |
682c9d06 |
590 | aItLS.Initialize(aNewSolids); |
591 | for ( ; aItLS.More(); aItLS.Next()) { |
592 | const TopoDS_Shape& aSx=aItLS.Value(); |
4e57c75e |
593 | myAreas.Append(aSx); |
594 | } |
4e57c75e |
595 | // Add holes that outside the solids to myAreas |
682c9d06 |
596 | aItLS.Initialize(aHoleShells); |
597 | for (; aItLS.More(); aItLS.Next()) { |
598 | const TopoDS_Shape& aHole = aItLS.Value(); |
4e57c75e |
599 | if (!aInOutMap.IsBound(aHole)){ |
600 | TopoDS_Solid aSolid; |
682c9d06 |
601 | // |
4e57c75e |
602 | aBB.MakeSolid(aSolid); |
603 | aBB.Add (aSolid, aHole); |
604 | // |
605 | myAreas.Append(aSolid); |
606 | } |
607 | } |
608 | } |
609 | //======================================================================= |
610 | //function : PerformInternalShapes |
611 | //purpose : |
612 | //======================================================================= |
30ecd5f8 |
613 | void BOPAlgo_BuilderSolid::PerformInternalShapes() |
4e57c75e |
614 | { |
615 | myErrorStatus=0; |
616 | // |
617 | Standard_Integer aNbFI=myLoopsInternal.Extent(); |
618 | if (!aNbFI) {// nothing to do |
619 | return; |
620 | } |
621 | // |
622 | BRep_Builder aBB; |
623 | TopoDS_Iterator aIt; |
624 | BOPCol_ListIteratorOfListOfShape aShellIt, aSolidIt; |
625 | BOPCol_MapIteratorOfMapOfShape aItMF; |
626 | // |
627 | BOPCol_MapOfShape aMF, aMFP, aMFx; |
628 | BOPCol_IndexedDataMapOfShapeListOfShape aMEF; |
629 | BOPCol_ListOfShape aLSI; |
630 | // |
631 | // 1. All internal faces |
632 | aShellIt.Initialize(myLoopsInternal); |
633 | for (; aShellIt.More(); aShellIt.Next()) { |
634 | const TopoDS_Shape& aShell=aShellIt.Value(); |
635 | aIt.Initialize(aShell); |
636 | for (; aIt.More(); aIt.Next()) { |
637 | const TopoDS_Shape& aF=aIt.Value(); |
638 | aMF.Add(aF); |
639 | } |
640 | } |
641 | aNbFI=aMF.Extent(); |
642 | // |
643 | // 2 Process solids |
644 | aSolidIt.Initialize(myAreas); |
645 | for ( ; aSolidIt.More(); aSolidIt.Next()) { |
646 | TopoDS_Solid& aSolid=(*(TopoDS_Solid*)(&aSolidIt.Value())); |
647 | // |
648 | TopExp_Explorer anExpSol(aSolid, TopAbs_FACE);; |
649 | for (; anExpSol.More(); anExpSol.Next()) { |
650 | const TopoDS_Shape& aF = anExpSol.Current(); |
651 | TopoDS_Shape aFF=aF; |
652 | // |
653 | aFF.Orientation(TopAbs_FORWARD); |
654 | aMFx.Add(aFF); |
655 | aFF.Orientation(TopAbs_REVERSED); |
656 | aMFx.Add(aFF); |
657 | } |
658 | aMEF.Clear(); |
682c9d06 |
659 | BOPTools::MapShapesAndAncestors(aSolid, |
1e143abb |
660 | TopAbs_EDGE, TopAbs_FACE, |
661 | aMEF); |
4e57c75e |
662 | // |
663 | // 2.1 Separate faces to process aMFP |
664 | aMFP.Clear(); |
665 | aItMF.Initialize(aMF); |
666 | for (; aItMF.More(); aItMF.Next()) { |
667 | const TopoDS_Face& aF=(*(TopoDS_Face*)(&aItMF.Key())); |
668 | if (!aMFx.Contains(aF)) { |
682c9d06 |
669 | if (BOPTools_AlgoTools::IsInternalFace(aF, |
1e143abb |
670 | aSolid, |
671 | aMEF, |
672 | 1.e-14, |
673 | myContext)) { |
4e57c75e |
674 | aMFP.Add(aF); |
675 | } |
676 | } |
677 | } |
678 | aMFx.Clear(); |
679 | // |
680 | // 2.2 Make Internal Shells |
681 | aLSI.Clear(); |
682 | MakeInternalShells(aMFP, aLSI); |
683 | // |
684 | // 2.3 Add them to aSolid |
685 | aShellIt.Initialize(aLSI); |
686 | for (; aShellIt.More(); aShellIt.Next()) { |
687 | const TopoDS_Shape& aSI=aShellIt.Value(); |
688 | aBB.Add (aSolid, aSI); |
689 | } |
690 | // |
691 | // 2.4 Remove faces aMFP from aMF |
692 | aItMF.Initialize(aMFP); |
693 | for (; aItMF.More(); aItMF.Next()) { |
694 | const TopoDS_Shape& aF=aItMF.Key(); |
695 | aMF.Remove(aF); |
696 | } |
697 | // |
698 | aNbFI=aMF.Extent(); |
699 | if (!aNbFI) { |
700 | break; |
701 | } |
702 | } //for ( ; aSolidIt.More(); aSolidIt.Next()) { |
703 | if (aNbFI) { |
704 | TopoDS_Solid aSolid; |
705 | aBB.MakeSolid(aSolid); |
706 | // |
707 | MakeInternalShells(aMF, aLSI); |
708 | aShellIt.Initialize(aLSI); |
709 | for (; aShellIt.More(); aShellIt.Next()) { |
710 | const TopoDS_Shape& aSI=aShellIt.Value(); |
711 | aBB.Add (aSolid, aSI); |
712 | } |
713 | myAreas.Append(aSolid); |
714 | } |
715 | } |
716 | |
717 | //======================================================================= |
718 | //function : MakeInternalShells |
719 | //purpose : |
720 | //======================================================================= |
721 | void MakeInternalShells(const BOPCol_MapOfShape& theMF, |
722 | BOPCol_ListOfShape& theShells) |
723 | { |
724 | BOPCol_ListIteratorOfListOfShape aItF; |
725 | BRep_Builder aBB; |
726 | // |
727 | BOPCol_IndexedDataMapOfShapeListOfShape aMEF; |
728 | BOPCol_MapIteratorOfMapOfShape aItM; |
729 | BOPCol_MapOfShape aAddedFacesMap; |
730 | // |
731 | aItM.Initialize(theMF); |
732 | for (; aItM.More(); aItM.Next()) { |
733 | const TopoDS_Shape& aF=aItM.Key(); |
682c9d06 |
734 | BOPTools::MapShapesAndAncestors(aF, |
1e143abb |
735 | TopAbs_EDGE, TopAbs_FACE, |
736 | aMEF); |
4e57c75e |
737 | } |
738 | // |
739 | aItM.Initialize(theMF); |
740 | for (; aItM.More(); aItM.Next()) { |
741 | TopoDS_Shape aFF=aItM.Key(); |
742 | if (!aAddedFacesMap.Add(aFF)) { |
743 | continue; |
744 | } |
745 | // |
746 | // make a new shell |
747 | TopoDS_Shell aShell; |
748 | aBB.MakeShell(aShell); |
749 | aFF.Orientation(TopAbs_INTERNAL); |
750 | aBB.Add(aShell, aFF); |
751 | // |
752 | TopoDS_Iterator aItAddedF (aShell); |
753 | for (; aItAddedF.More(); aItAddedF.Next()) { |
754 | const TopoDS_Shape& aF =aItAddedF.Value(); |
755 | // |
756 | TopExp_Explorer aEdgeExp(aF, TopAbs_EDGE); |
757 | for (; aEdgeExp.More(); aEdgeExp.Next()) { |
758 | const TopoDS_Shape& aE =aEdgeExp.Current(); |
759 | const BOPCol_ListOfShape& aLF=aMEF.FindFromKey(aE); |
760 | aItF.Initialize(aLF); |
761 | for (; aItF.More(); aItF.Next()) { |
762 | TopoDS_Shape aFL=aItF.Value(); |
763 | if (aAddedFacesMap.Add(aFL)){ |
764 | aFL.Orientation(TopAbs_INTERNAL); |
765 | aBB.Add(aShell, aFL); |
766 | } |
767 | } |
768 | } |
769 | } |
770 | theShells.Append(aShell); |
771 | } |
772 | } |
773 | //======================================================================= |
774 | //function : IsHole |
775 | //purpose : |
776 | //======================================================================= |
777 | Standard_Boolean IsHole(const TopoDS_Shape& theS2, |
1e143abb |
778 | Handle(IntTools_Context)& theContext) |
4e57c75e |
779 | { |
780 | TopoDS_Solid *pS2=(TopoDS_Solid *)&theS2; |
781 | BRepClass3d_SolidClassifier& aClsf=theContext->SolidClassifier(*pS2); |
782 | // |
783 | aClsf.PerformInfinitePoint(::RealSmall()); |
784 | // |
785 | return (aClsf.State()==TopAbs_IN); |
786 | } |
787 | //======================================================================= |
788 | //function : IsInside |
789 | //purpose : |
790 | //======================================================================= |
791 | Standard_Boolean IsInside(const TopoDS_Shape& theS1, |
792 | const TopoDS_Shape& theS2, |
1e143abb |
793 | Handle(IntTools_Context)& theContext) |
4e57c75e |
794 | { |
795 | TopExp_Explorer aExp; |
796 | TopAbs_State aState; |
797 | // |
798 | TopoDS_Solid *pS2=(TopoDS_Solid *)&theS2; |
799 | // |
800 | aExp.Init(theS1, TopAbs_FACE); |
801 | if (!aExp.More()){ |
802 | BRepClass3d_SolidClassifier& aClsf=theContext->SolidClassifier(*pS2); |
803 | aClsf.PerformInfinitePoint(::RealSmall()); |
804 | aState=aClsf.State(); |
805 | } |
806 | else { |
807 | BOPCol_IndexedMapOfShape aBounds; |
808 | BOPTools::MapShapes(*pS2, TopAbs_EDGE, aBounds); |
809 | const TopoDS_Face& aF = (*(TopoDS_Face*)(&aExp.Current())); |
682c9d06 |
810 | aState=BOPTools_AlgoTools::ComputeState(aF, *pS2, 1.e-14, |
1e143abb |
811 | aBounds, theContext); |
4e57c75e |
812 | } |
813 | return (aState==TopAbs_IN); |
814 | } |
815 | //======================================================================= |
816 | //function : IsGrowthShell |
817 | //purpose : |
818 | //======================================================================= |
819 | Standard_Boolean IsGrowthShell(const TopoDS_Shape& theShell, |
820 | const BOPCol_IndexedMapOfShape& theMHF) |
821 | { |
822 | Standard_Boolean bRet; |
823 | TopoDS_Iterator aIt; |
824 | // |
825 | bRet=Standard_False; |
826 | if (theMHF.Extent()) { |
827 | aIt.Initialize(theShell); |
828 | for(; aIt.More(); aIt.Next()) { |
829 | const TopoDS_Shape& aF=aIt.Value(); |
830 | if (theMHF.Contains(aF)) { |
831 | return !bRet; |
832 | } |
833 | } |
834 | } |
835 | return bRet; |
836 | } |