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1 | // Created by: Peter KURNEV |
2 | // Copyright (c) 2010-2012 OPEN CASCADE SAS |
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 | // |
7 | // The content of this file is subject to the Open CASCADE Technology Public |
8 | // License Version 6.5 (the "License"). You may not use the content of this file |
9 | // except in compliance with the License. Please obtain a copy of the License |
10 | // at http://www.opencascade.org and read it completely before using this file. |
11 | // |
12 | // The Initial Developer of the Original Code is Open CASCADE S.A.S., having its |
13 | // main offices at: 1, place des Freres Montgolfier, 78280 Guyancourt, France. |
14 | // |
15 | // The Original Code and all software distributed under the License is |
16 | // distributed on an "AS IS" basis, without warranty of any kind, and the |
17 | // Initial Developer hereby disclaims all such warranties, including without |
18 | // limitation, any warranties of merchantability, fitness for a particular |
19 | // purpose or non-infringement. Please see the License for the specific terms |
20 | // and conditions governing the rights and limitations under the License. |
21 | |
22 | |
23 | #include <BOPTools_AlgoTools.ixx> |
24 | // |
25 | #include <Precision.hxx> |
26 | // |
27 | #include <gp_Pnt.hxx> |
28 | #include <gp_XYZ.hxx> |
29 | #include <gp_Pnt2d.hxx> |
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30 | #include <gp_Cylinder.hxx> |
31 | #include <gp_Cone.hxx> |
32 | #include <gp_Sphere.hxx> |
33 | #include <gp_Torus.hxx> |
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34 | // |
35 | #include <Geom2d_Curve.hxx> |
36 | #include <Geom_Surface.hxx> |
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37 | #include <Geom_Plane.hxx> |
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38 | #include <Geom_TrimmedCurve.hxx> |
39 | #include <Geom_Curve.hxx> |
40 | #include <GeomAPI_ProjectPointOnSurf.hxx> |
41 | #include <Geom2dInt_Geom2dCurveTool.hxx> |
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42 | #include <GeomAdaptor_Surface.hxx> |
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43 | // |
44 | #include <TopAbs_Orientation.hxx> |
45 | // |
46 | #include <TopoDS_Compound.hxx> |
47 | #include <TopoDS_CompSolid.hxx> |
48 | #include <TopoDS_Solid.hxx> |
49 | #include <TopoDS_Shell.hxx> |
50 | #include <TopoDS_Wire.hxx> |
51 | // |
52 | #include <BRep_Builder.hxx> |
53 | #include <BRep_Tool.hxx> |
54 | #include <BRepLib.hxx> |
55 | #include <BRepAdaptor_Curve2d.hxx> |
56 | #include <BRepClass3d_SolidClassifier.hxx> |
57 | #include <TopExp.hxx> |
58 | #include <TopExp_Explorer.hxx> |
59 | // |
60 | #include <IntTools_Tools.hxx> |
61 | // |
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62 | #include <BOPTools.hxx> |
63 | #include <BOPTools_CoupleOfShape.hxx> |
64 | #include <BOPTools_ListOfCoupleOfShape.hxx> |
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65 | #include <BOPTools_AlgoTools2D.hxx> |
66 | #include <BOPTools_AlgoTools3D.hxx> |
67 | // |
68 | #include <BOPCol_IndexedMapOfShape.hxx> |
69 | #include <BOPCol_MapOfShape.hxx> |
70 | // |
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71 | #include <BOPInt_ShrunkRange.hxx> |
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72 | // |
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73 | |
74 | static |
75 | Standard_Real AngleWithRef(const gp_Dir& theD1, |
76 | const gp_Dir& theD2, |
77 | const gp_Dir& theDRef); |
78 | static |
79 | inline Standard_Real fsqrt(Standard_Real val); |
80 | |
81 | static |
82 | Standard_Boolean FindFacePairs (const TopoDS_Edge& theE, |
83 | const BOPCol_ListOfShape& thLF, |
84 | BOPTools_ListOfCoupleOfShape& theLCFF, |
85 | Handle(BOPInt_Context)& theContext); |
86 | static |
87 | TopAbs_Orientation Orientation(const TopoDS_Edge& anE, |
88 | const TopoDS_Face& aF); |
89 | |
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90 | static |
91 | void GetFaceDir(const TopoDS_Edge& aE, |
92 | const TopoDS_Face& aF, |
93 | const gp_Pnt& aP, |
94 | const Standard_Real aT, |
95 | const gp_Dir& aDTgt, |
96 | gp_Dir& aDN, |
97 | gp_Dir& aDB, |
98 | Handle(BOPInt_Context)& theContext); |
99 | static |
100 | Standard_Boolean FindPointInFace(const TopoDS_Edge& aE, |
101 | const TopoDS_Face& aF, |
102 | const gp_Pnt& aP, |
103 | const Standard_Real aT, |
104 | gp_Dir& aDB, |
105 | gp_Pnt& aPOut, |
106 | Handle(BOPInt_Context)& theContext, |
107 | const GeomAdaptor_Surface& aGAS); |
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108 | |
109 | //======================================================================= |
110 | // function: MakeConnexityBlocks |
111 | // purpose: |
112 | //======================================================================= |
113 | void BOPTools_AlgoTools::MakeConnexityBlocks (const TopoDS_Shape& theS, |
114 | const TopAbs_ShapeEnum theType1, |
115 | const TopAbs_ShapeEnum theType2, |
116 | BOPCol_ListOfShape& theLCB) |
117 | { |
118 | Standard_Integer aNbF, aNbAdd, aNbAdd1, i; |
119 | BRep_Builder aBB; |
120 | TopoDS_Compound aC; |
121 | TopoDS_Iterator aIt; |
122 | TopExp_Explorer aExp; |
123 | BOPCol_MapOfShape aMP; |
124 | BOPCol_IndexedMapOfShape aMCB, aMAdd, aMAdd1; |
125 | BOPCol_IndexedDataMapOfShapeListOfShape aMEF; |
126 | BOPCol_ListIteratorOfListOfShape aItLF; |
127 | // |
128 | // 1. aMEF |
129 | BOPTools::MapShapesAndAncestors(theS, theType1, theType2, aMEF); |
130 | // |
131 | // 2. aMCB |
132 | aIt.Initialize(theS); |
133 | for (; aIt.More(); aIt.Next()) { |
134 | const TopoDS_Shape& aF1=aIt.Value(); |
135 | if (aMP.Contains(aF1)) { |
136 | continue; |
137 | } |
138 | // |
139 | aMCB.Clear(); |
140 | aMAdd.Clear(); |
141 | aMAdd.Add(aF1); |
142 | // |
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143 | for(;;) { |
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144 | aMAdd1.Clear(); |
145 | // |
146 | aNbAdd = aMAdd.Extent(); |
147 | for (i=1; i<=aNbAdd; ++i) { |
148 | const TopoDS_Shape& aF=aMAdd(i); |
149 | // |
150 | aExp.Init(aF, theType1); |
151 | for (; aExp.More(); aExp.Next()) { |
152 | const TopoDS_Shape& aE=aExp.Current(); |
153 | // |
154 | const BOPCol_ListOfShape& aLF=aMEF.FindFromKey(aE); |
155 | aItLF.Initialize(aLF); |
156 | for (; aItLF.More(); aItLF.Next()) { |
157 | const TopoDS_Shape& aFx=aItLF.Value(); |
158 | if (aFx.IsSame(aF)) { |
159 | continue; |
160 | } |
161 | if (aMCB.Contains(aFx)) { |
162 | continue; |
163 | } |
164 | aMAdd1.Add(aFx); |
165 | } |
166 | }//for (; aExp.More(); aExp.Next()){ |
167 | aMCB.Add(aF); |
168 | }// for (i=1; i<=aNbAdd; ++i) { |
169 | // |
170 | aNbAdd1=aMAdd1.Extent(); |
171 | if (!aNbAdd1) { |
172 | break;// ->make new CB from aMCB |
173 | } |
174 | // |
175 | aMAdd.Clear(); |
176 | for (i=1; i<=aNbAdd1; ++i) { |
177 | const TopoDS_Shape& aFAdd = aMAdd1(i); |
178 | aMAdd.Add(aFAdd); |
179 | } |
180 | }//while(1) { |
181 | // |
182 | aNbF=aMCB.Extent(); |
183 | if (aNbF) { |
184 | aBB.MakeCompound(aC); |
185 | // |
186 | for (i=1; i<=aNbF; ++i) { |
187 | const TopoDS_Shape& aF=aMCB(i); |
188 | aBB.Add(aC, aF); |
189 | aMP.Add(aF); |
190 | } |
191 | theLCB.Append(aC); |
192 | } |
193 | }// for (; aIt.More(); aIt.Next()) |
194 | } |
195 | //======================================================================= |
196 | // function: OrientFacesOnShell |
197 | // purpose: |
198 | //======================================================================= |
199 | void BOPTools_AlgoTools::OrientFacesOnShell (TopoDS_Shape& aShell) |
200 | { |
201 | Standard_Boolean bIsProcessed1, bIsProcessed2; |
202 | Standard_Integer i, aNbE, aNbF, j; |
203 | TopAbs_Orientation anOrE1, anOrE2; |
204 | TopoDS_Face aF1x, aF2x; |
205 | TopoDS_Shape aShellNew; |
206 | BOPCol_IndexedDataMapOfShapeListOfShape aEFMap; |
207 | BOPCol_IndexedMapOfShape aProcessedFaces; |
208 | BRep_Builder aBB; |
209 | // |
210 | BOPTools_AlgoTools::MakeContainer(TopAbs_SHELL, aShellNew); |
211 | // |
212 | BOPTools::MapShapesAndAncestors(aShell, TopAbs_EDGE, TopAbs_FACE, aEFMap); |
213 | aNbE=aEFMap.Extent(); |
214 | // |
215 | // One seam edge in aEFMap contains 2 equivalent faces. |
216 | for (i=1; i<=aNbE; ++i) { |
217 | BOPCol_ListOfShape& aLF=aEFMap.ChangeFromIndex(i); |
218 | aNbF=aLF.Extent(); |
219 | if (aNbF>1) { |
220 | BOPCol_ListOfShape aLFTmp; |
221 | BOPCol_IndexedMapOfShape aFM; |
222 | // |
223 | BOPCol_ListIteratorOfListOfShape anIt(aLF); |
224 | for (; anIt.More(); anIt.Next()) { |
225 | const TopoDS_Shape& aF=anIt.Value(); |
226 | if (!aFM.Contains(aF)) { |
227 | aFM.Add(aF); |
228 | aLFTmp.Append(aF); |
229 | } |
230 | } |
231 | aLF.Clear(); |
232 | aLF=aLFTmp; |
233 | } |
234 | } |
235 | // |
236 | // Do |
237 | for (i=1; i<=aNbE; ++i) { |
238 | const TopoDS_Edge& aE=(*(TopoDS_Edge*)(&aEFMap.FindKey(i))); |
239 | if (BRep_Tool::Degenerated(aE)) { |
240 | continue; |
241 | } |
242 | // |
243 | const BOPCol_ListOfShape& aLF=aEFMap.FindFromIndex(i); |
244 | aNbF=aLF.Extent(); |
245 | if (aNbF!=2) { |
246 | continue; |
247 | } |
248 | // |
249 | TopoDS_Face& aF1=(*(TopoDS_Face*)(&aLF.First())); |
250 | TopoDS_Face& aF2=(*(TopoDS_Face*)(&aLF.Last())); |
251 | // |
252 | bIsProcessed1=aProcessedFaces.Contains(aF1); |
253 | bIsProcessed2=aProcessedFaces.Contains(aF2); |
254 | if (bIsProcessed1 && bIsProcessed2) { |
255 | continue; |
256 | } |
257 | |
258 | if (!bIsProcessed1 && !bIsProcessed2) { |
259 | aProcessedFaces.Add(aF1); |
260 | aBB.Add(aShellNew, aF1); |
261 | bIsProcessed1=!bIsProcessed1; |
262 | } |
263 | // |
264 | aF1x=aF1; |
265 | if (bIsProcessed1) { |
266 | j=aProcessedFaces.FindIndex(aF1); |
267 | aF1x=(*(TopoDS_Face*)(&aProcessedFaces.FindKey(j))); |
268 | } |
269 | // |
270 | aF2x=aF2; |
271 | if (bIsProcessed2) { |
272 | j=aProcessedFaces.FindIndex(aF2); |
273 | aF2x=(*(TopoDS_Face*)(&aProcessedFaces.FindKey(j))); |
274 | } |
275 | // |
276 | anOrE1=Orientation(aE, aF1x); |
277 | anOrE2=Orientation(aE, aF2x); |
278 | // |
279 | if (bIsProcessed1 && !bIsProcessed2) { |
280 | if (anOrE1==anOrE2) { |
281 | if (!BRep_Tool::IsClosed(aE, aF1) && |
282 | !BRep_Tool::IsClosed(aE, aF2)) { |
283 | aF2.Reverse(); |
284 | } |
285 | } |
286 | aProcessedFaces.Add(aF2); |
287 | aBB.Add(aShellNew, aF2); |
288 | } |
289 | else if (!bIsProcessed1 && bIsProcessed2) { |
290 | if (anOrE1==anOrE2) { |
291 | if (!BRep_Tool::IsClosed(aE, aF1) && |
292 | !BRep_Tool::IsClosed(aE, aF2)) { |
293 | aF1.Reverse(); |
294 | } |
295 | } |
296 | aProcessedFaces.Add(aF1); |
297 | aBB.Add(aShellNew, aF1); |
298 | } |
299 | } |
300 | // |
301 | // |
302 | for (i=1; i<=aNbE; ++i) { |
303 | const TopoDS_Edge& aE=(*(TopoDS_Edge*)(&aEFMap.FindKey(i))); |
304 | if (BRep_Tool::Degenerated(aE)) { |
305 | continue; |
306 | } |
307 | // |
308 | const BOPCol_ListOfShape& aLF=aEFMap.FindFromIndex(i); |
309 | aNbF=aLF.Extent(); |
310 | if (aNbF!=2) { |
311 | BOPCol_ListIteratorOfListOfShape anIt(aLF); |
312 | for(; anIt.More(); anIt.Next()) { |
313 | const TopoDS_Face& aF=(*(TopoDS_Face*)(&anIt.Value())); |
314 | if (!aProcessedFaces.Contains(aF)) { |
315 | aProcessedFaces.Add(aF); |
316 | aBB.Add(aShellNew, aF); |
317 | } |
318 | } |
319 | } |
320 | } |
321 | aShell=aShellNew; |
322 | } |
323 | //======================================================================= |
324 | //function : Orientation |
325 | //purpose : |
326 | //======================================================================= |
327 | TopAbs_Orientation Orientation(const TopoDS_Edge& anE, |
328 | const TopoDS_Face& aF) |
329 | { |
330 | TopAbs_Orientation anOr=TopAbs_INTERNAL; |
331 | |
332 | TopExp_Explorer anExp; |
333 | anExp.Init(aF, TopAbs_EDGE); |
334 | for (; anExp.More(); anExp.Next()) { |
335 | const TopoDS_Edge& anEF1=(*(TopoDS_Edge*)(&anExp.Current())); |
336 | if (anEF1.IsSame(anE)) { |
337 | anOr=anEF1.Orientation(); |
338 | break; |
339 | } |
340 | } |
341 | return anOr; |
342 | } |
343 | |
344 | //////////// |
345 | |
346 | |
347 | //======================================================================= |
348 | // function: MakeConnexityBlock. |
349 | // purpose: |
350 | //======================================================================= |
351 | void BOPTools_AlgoTools::MakeConnexityBlock (BOPCol_ListOfShape& theLFIn, |
352 | BOPCol_IndexedMapOfShape& theMEAvoid, |
353 | BOPCol_ListOfShape& theLCB, |
354 | const Handle(NCollection_BaseAllocator)& theAllocator) |
355 | { |
356 | Standard_Integer aNbF, aNbAdd1, aNbAdd, i; |
357 | TopExp_Explorer aExp; |
358 | BOPCol_ListIteratorOfListOfShape aIt; |
359 | // |
360 | BOPCol_IndexedMapOfShape aMCB(100, theAllocator); |
361 | BOPCol_IndexedMapOfShape aMAdd(100, theAllocator); |
362 | BOPCol_IndexedMapOfShape aMAdd1(100, theAllocator); |
363 | BOPCol_IndexedDataMapOfShapeListOfShape aMEF(100, theAllocator); |
364 | // |
365 | // 1. aMEF |
366 | aNbF=theLFIn.Extent(); |
367 | aIt.Initialize(theLFIn); |
368 | for (; aIt.More(); aIt.Next()) { |
369 | const TopoDS_Shape& aF=aIt.Value(); |
370 | BOPTools::MapShapesAndAncestors(aF, TopAbs_EDGE, TopAbs_FACE, aMEF); |
371 | } |
372 | // |
373 | // 2. aMCB |
374 | const TopoDS_Shape& aF1=theLFIn.First(); |
375 | aMAdd.Add(aF1); |
376 | // |
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377 | for(;;) { |
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378 | aMAdd1.Clear(); |
379 | aNbAdd = aMAdd.Extent(); |
380 | for (i=1; i<=aNbAdd; ++i) { |
381 | const TopoDS_Shape& aF=aMAdd(i); |
382 | // |
383 | //aMAdd1.Clear(); |
384 | aExp.Init(aF, TopAbs_EDGE); |
385 | for (; aExp.More(); aExp.Next()) { |
386 | const TopoDS_Shape& aE=aExp.Current(); |
387 | if (theMEAvoid.Contains(aE)){ |
388 | continue; |
389 | } |
390 | // |
391 | const BOPCol_ListOfShape& aLF=aMEF.FindFromKey(aE); |
392 | aIt.Initialize(aLF); |
393 | for (; aIt.More(); aIt.Next()) { |
394 | const TopoDS_Shape& aFx=aIt.Value(); |
395 | if (aFx.IsSame(aF)) { |
396 | continue; |
397 | } |
398 | if (aMCB.Contains(aFx)) { |
399 | continue; |
400 | } |
401 | aMAdd1.Add(aFx); |
402 | } |
403 | }//for (; aExp.More(); aExp.Next()){ |
404 | aMCB.Add(aF); |
405 | }// for (i=1; i<=aNbAdd; ++i) { |
406 | // |
407 | aNbAdd1=aMAdd1.Extent(); |
408 | if (!aNbAdd1) { |
409 | break; |
410 | } |
411 | // |
412 | aMAdd.Clear(); |
413 | for (i=1; i<=aNbAdd1; ++i) { |
414 | const TopoDS_Shape& aFAdd=aMAdd1(i); |
415 | aMAdd.Add(aFAdd); |
416 | } |
417 | // |
418 | }//while(1) { |
419 | |
420 | // |
421 | aNbF=aMCB.Extent(); |
422 | for (i=1; i<=aNbF; ++i) { |
423 | const TopoDS_Shape& aF=aMCB(i); |
424 | theLCB.Append(aF); |
425 | } |
426 | } |
427 | //======================================================================= |
428 | // function: ComputeStateByOnePoint |
429 | // purpose: |
430 | //======================================================================= |
431 | TopAbs_State BOPTools_AlgoTools::ComputeStateByOnePoint(const TopoDS_Shape& theS, |
432 | const TopoDS_Solid& theRef, |
433 | const Standard_Real theTol, |
434 | Handle(BOPInt_Context)& theContext) |
435 | { |
436 | TopAbs_State aState; |
437 | TopAbs_ShapeEnum aType; |
438 | // |
439 | aState=TopAbs_UNKNOWN; |
440 | aType=theS.ShapeType(); |
441 | if (aType==TopAbs_VERTEX) { |
442 | const TopoDS_Vertex& aV=(*(TopoDS_Vertex*)(&theS)); |
443 | aState=BOPTools_AlgoTools::ComputeState(aV, theRef, theTol, theContext); |
444 | } |
445 | else if (aType==TopAbs_EDGE) { |
446 | const TopoDS_Edge& aE=(*(TopoDS_Edge*)(&theS)); |
447 | aState=BOPTools_AlgoTools::ComputeState(aE, theRef, theTol, theContext); |
448 | } |
449 | return aState; |
450 | } |
451 | |
452 | //======================================================================= |
453 | // function: ComputeState |
454 | // purpose: |
455 | //======================================================================= |
456 | TopAbs_State BOPTools_AlgoTools::ComputeState(const TopoDS_Face& theF, |
457 | const TopoDS_Solid& theRef, |
458 | const Standard_Real theTol, |
459 | BOPCol_IndexedMapOfShape& theBounds, |
460 | Handle(BOPInt_Context)& theContext) |
461 | { |
462 | TopAbs_State aState; |
463 | TopExp_Explorer aExp; |
464 | TopoDS_Edge aE1; |
465 | gp_Pnt2d aP2D; |
466 | gp_Pnt aP3D; |
467 | // |
468 | aState=TopAbs_UNKNOWN; |
469 | // |
470 | aExp.Init(theF, TopAbs_EDGE); |
471 | for (; aExp.More(); aExp.Next()) { |
472 | const TopoDS_Edge& aSE=(*(TopoDS_Edge*)(&aExp.Current())); |
473 | if (BRep_Tool::Degenerated(aSE)) { |
474 | continue; |
475 | } |
476 | // |
477 | if (!theBounds.Contains(aSE)) { |
478 | const TopoDS_Edge& aE=(*(TopoDS_Edge*)(&aSE)); |
479 | aState=BOPTools_AlgoTools::ComputeState(aE, theRef, theTol, theContext); |
480 | return aState; |
481 | } |
482 | if (aE1.IsNull()) { |
483 | aE1=(*(TopoDS_Edge*)(&aSE)); |
484 | } |
485 | } |
486 | // !!<- process edges that are all on theRef |
487 | if (!aE1.IsNull()) { |
488 | BOPTools_AlgoTools3D::PointNearEdge(aE1, theF, aP2D, aP3D, theContext); |
489 | aState=BOPTools_AlgoTools::ComputeState(aP3D, theRef, theTol, theContext); |
490 | } |
491 | // |
492 | return aState; |
493 | } |
494 | //======================================================================= |
495 | // function: ComputeState |
496 | // purpose: |
497 | //======================================================================= |
498 | TopAbs_State BOPTools_AlgoTools::ComputeState(const TopoDS_Vertex& theV, |
499 | const TopoDS_Solid& theRef, |
500 | const Standard_Real theTol, |
501 | Handle(BOPInt_Context)& theContext) |
502 | { |
503 | TopAbs_State aState; |
504 | gp_Pnt aP3D; |
505 | // |
506 | aP3D=BRep_Tool::Pnt(theV); |
507 | aState=BOPTools_AlgoTools::ComputeState(aP3D, theRef, theTol, theContext); |
508 | return aState; |
509 | } |
510 | //======================================================================= |
511 | // function: ComputeState |
512 | // purpose: |
513 | //======================================================================= |
514 | TopAbs_State BOPTools_AlgoTools::ComputeState(const TopoDS_Edge& theE, |
515 | const TopoDS_Solid& theRef, |
516 | const Standard_Real theTol, |
517 | Handle(BOPInt_Context)& theContext) |
518 | { |
519 | Standard_Real aT1, aT2, aT = 0.; |
520 | TopAbs_State aState; |
521 | Handle(Geom_Curve) aC3D; |
522 | gp_Pnt aP3D; |
523 | // |
524 | aC3D = BRep_Tool::Curve(theE, aT1, aT2); |
525 | // |
526 | if(aC3D.IsNull()) { |
527 | //it means that we are in degenerated edge |
528 | const TopoDS_Vertex& aV = TopExp::FirstVertex(theE); |
529 | if(aV.IsNull()){ |
530 | return TopAbs_UNKNOWN; |
531 | } |
532 | aP3D=BRep_Tool::Pnt(aV); |
533 | } |
534 | else {//usual case |
535 | Standard_Boolean bF2Inf, bL2Inf; |
536 | Standard_Real dT=10.; |
537 | // |
538 | bF2Inf = Precision::IsNegativeInfinite(aT1); |
539 | bL2Inf = Precision::IsPositiveInfinite(aT2); |
540 | // |
541 | if (bF2Inf && !bL2Inf) { |
542 | aT=aT2-dT; |
543 | } |
544 | else if (!bF2Inf && bL2Inf) { |
545 | aT=aT1+dT; |
546 | } |
547 | else if (bF2Inf && bL2Inf) { |
548 | aT=0.; |
549 | } |
550 | else { |
551 | aT=IntTools_Tools::IntermediatePoint(aT1, aT2); |
552 | } |
553 | aC3D->D0(aT, aP3D); |
554 | } |
555 | // |
556 | aState=BOPTools_AlgoTools::ComputeState(aP3D, theRef, theTol, theContext); |
557 | // |
558 | return aState; |
559 | } |
560 | //======================================================================= |
561 | // function: ComputeState |
562 | // purpose: |
563 | //======================================================================= |
564 | TopAbs_State BOPTools_AlgoTools::ComputeState(const gp_Pnt& theP, |
565 | const TopoDS_Solid& theRef, |
566 | const Standard_Real theTol, |
567 | Handle(BOPInt_Context)& theContext) |
568 | { |
569 | TopAbs_State aState; |
570 | // |
571 | BRepClass3d_SolidClassifier& aSC=theContext->SolidClassifier(theRef); |
572 | aSC.Perform(theP, theTol); |
573 | // |
574 | aState=aSC.State(); |
575 | // |
576 | return aState; |
577 | } |
578 | //======================================================================= |
579 | //function : IsInternalFace |
580 | //purpose : |
581 | //======================================================================= |
582 | Standard_Boolean BOPTools_AlgoTools::IsInternalFace(const TopoDS_Face& theFace, |
583 | const TopoDS_Solid& theSolid, |
584 | BOPCol_IndexedDataMapOfShapeListOfShape& theMEF, |
585 | const Standard_Real theTol, |
586 | Handle(BOPInt_Context)& theContext) |
587 | { |
588 | Standard_Boolean bRet, bDegenerated; |
589 | Standard_Integer aNbF; |
590 | TopAbs_Orientation aOr; |
591 | TopoDS_Edge aEL; |
592 | TopExp_Explorer aExp; |
593 | BOPCol_ListIteratorOfListOfShape aItF; |
594 | // |
595 | bRet=Standard_False; |
596 | // |
597 | // 1 Try to find an edge from theFace in theMEF |
598 | aExp.Init(theFace, TopAbs_EDGE); |
599 | for(; aExp.More(); aExp.Next()) { |
600 | const TopoDS_Edge& aE=(*(TopoDS_Edge*)(&aExp.Current())); |
601 | if (!theMEF.Contains(aE)) { |
602 | continue; |
603 | } |
604 | // |
605 | aOr=aE.Orientation(); |
606 | if (aOr==TopAbs_INTERNAL) { |
607 | continue; |
608 | } |
609 | bDegenerated=BRep_Tool::Degenerated(aE); |
610 | if (bDegenerated){ |
611 | continue; |
612 | } |
613 | // aE |
614 | BOPCol_ListOfShape& aLF=theMEF.ChangeFromKey(aE); |
615 | aNbF=aLF.Extent(); |
616 | if (!aNbF) { |
617 | return bRet; // it can not be so |
618 | } |
619 | else if (aNbF==1) { |
620 | // aE is internal edge on aLF.First() |
621 | const TopoDS_Face& aF1=(*(TopoDS_Face*)(&aLF.First())); |
622 | bRet=BOPTools_AlgoTools::IsInternalFace(theFace, aE, aF1, aF1, theContext); |
623 | return bRet; |
624 | } |
625 | else if (aNbF==2) { |
626 | const TopoDS_Face& aF1=(*(TopoDS_Face*)(&aLF.First())); |
627 | const TopoDS_Face& aF2=(*(TopoDS_Face*)(&aLF.Last())); |
628 | // |
629 | if (aF2.IsSame(aF1) && BRep_Tool::IsClosed(aE, aF1)) { |
630 | // treat as it was for 1 face |
631 | bRet=BOPTools_AlgoTools::IsInternalFace(theFace, aE, aF1, aF2, theContext); |
632 | return bRet; |
633 | } |
634 | } |
635 | if (aNbF%2) { |
636 | return bRet; // it can not be so |
637 | } |
638 | else { // aNbF=2,4,6,8,... |
639 | bRet=BOPTools_AlgoTools::IsInternalFace(theFace, aE, aLF, theContext); |
640 | return bRet; |
641 | } |
642 | }//for(; aExp.More(); aExp.Next()) { |
643 | // |
644 | //======================================== |
645 | // 2. Classify face using classifier |
646 | // |
647 | TopAbs_State aState; |
648 | BOPCol_IndexedMapOfShape aBounds; |
649 | // |
650 | aState=BOPTools_AlgoTools::ComputeState(theFace, theSolid, theTol, aBounds, theContext); |
651 | bRet=(aState==TopAbs_IN); |
652 | // |
653 | return bRet; |
654 | } |
655 | //======================================================================= |
656 | //function : IsInternalFace |
657 | //purpose : |
658 | //======================================================================= |
659 | Standard_Boolean BOPTools_AlgoTools::IsInternalFace(const TopoDS_Face& theFace, |
660 | const TopoDS_Edge& theEdge, |
661 | BOPCol_ListOfShape& theLF, |
662 | Handle(BOPInt_Context)& theContext) |
663 | { |
664 | Standard_Boolean bRet; |
665 | Standard_Boolean aNbF; |
666 | // |
667 | bRet=Standard_False; |
668 | // |
669 | aNbF=theLF.Extent(); |
670 | if (aNbF==2) { |
671 | const TopoDS_Face& aF1=(*(TopoDS_Face*)(&theLF.First())); |
672 | const TopoDS_Face& aF2=(*(TopoDS_Face*)(&theLF.Last())); |
673 | bRet=BOPTools_AlgoTools::IsInternalFace(theFace, theEdge, aF1, aF2, theContext); |
674 | return bRet; |
675 | } |
676 | // |
677 | else { |
678 | BOPTools_ListOfCoupleOfShape aLCFF; |
679 | BOPTools_ListIteratorOfListOfCoupleOfShape aIt; |
680 | // |
681 | FindFacePairs(theEdge, theLF, aLCFF, theContext); |
682 | // |
683 | aIt.Initialize(aLCFF); |
684 | for (; aIt.More(); aIt.Next()) { |
685 | BOPTools_CoupleOfShape& aCSFF=aIt.ChangeValue(); |
686 | // |
687 | const TopoDS_Face& aF1=(*(TopoDS_Face*)(&aCSFF.Shape1())); |
688 | const TopoDS_Face& aF2=(*(TopoDS_Face*)(&aCSFF.Shape2())); |
689 | bRet=BOPTools_AlgoTools::IsInternalFace(theFace, theEdge, aF1, aF2, theContext); |
690 | if (bRet) { |
691 | return bRet; |
692 | } |
693 | } |
694 | } |
695 | return bRet; |
696 | } |
697 | //======================================================================= |
698 | //function : IsInternalFace |
699 | //purpose : |
700 | //======================================================================= |
701 | Standard_Boolean BOPTools_AlgoTools::IsInternalFace(const TopoDS_Face& theFace, |
702 | const TopoDS_Edge& theEdge, |
703 | const TopoDS_Face& theFace1, |
704 | const TopoDS_Face& theFace2, |
705 | Handle(BOPInt_Context)& theContext) |
706 | { |
707 | Standard_Boolean bRet; |
708 | TopoDS_Edge aE1, aE2; |
709 | TopoDS_Face aFOff; |
710 | BOPTools_ListOfCoupleOfShape theLCSOff; |
711 | BOPTools_CoupleOfShape aCS1, aCS2; |
712 | // |
713 | BOPTools_AlgoTools::GetEdgeOnFace(theEdge, theFace1, aE1); |
714 | if (aE1.Orientation()==TopAbs_INTERNAL) { |
715 | aE2=aE1; |
716 | aE1.Orientation(TopAbs_FORWARD); |
717 | aE2.Orientation(TopAbs_REVERSED); |
718 | } |
719 | else if (theFace1==theFace2) { |
720 | aE2=aE1; |
721 | aE1.Orientation(TopAbs_FORWARD); |
722 | aE2.Orientation(TopAbs_REVERSED); |
723 | } |
724 | else { |
725 | BOPTools_AlgoTools::GetEdgeOnFace(theEdge, theFace2, aE2); |
726 | } |
727 | // |
728 | aCS1.SetShape1(theEdge); |
729 | aCS1.SetShape2(theFace); |
730 | theLCSOff.Append(aCS1); |
731 | // |
732 | aCS2.SetShape1(aE2); |
733 | aCS2.SetShape2(theFace2); |
734 | theLCSOff.Append(aCS2); |
735 | // |
736 | GetFaceOff(aE1, theFace1, theLCSOff, aFOff, theContext); |
737 | // |
738 | bRet = theFace.IsEqual(aFOff); |
739 | return bRet; |
740 | } |
741 | //======================================================================= |
742 | //function : GetFaceOff |
743 | //purpose : |
744 | //======================================================================= |
745 | void BOPTools_AlgoTools::GetFaceOff(const TopoDS_Edge& theE1, |
746 | const TopoDS_Face& theF1, |
747 | BOPTools_ListOfCoupleOfShape& theLCSOff, |
748 | TopoDS_Face& theFOff, |
749 | Handle(BOPInt_Context)& theContext) |
750 | { |
751 | Standard_Real aT, aT1, aT2, aAngle, aTwoPI, aAngleMin; |
752 | gp_Pnt aPn1, aPn2, aPx; |
df017cc9 |
753 | gp_Dir aDN1, aDN2, aDBF, aDBF2, aDTF; |
4e57c75e |
754 | gp_Vec aVTgt; |
df017cc9 |
755 | TopAbs_Orientation aOr; |
4e57c75e |
756 | Handle(Geom_Curve)aC3D; |
757 | BOPTools_ListIteratorOfListOfCoupleOfShape aIt; |
758 | // |
759 | aAngleMin=100.; |
760 | aTwoPI=M_PI+M_PI; |
761 | aC3D =BRep_Tool::Curve(theE1, aT1, aT2); |
4e57c75e |
762 | aT=BOPTools_AlgoTools2D::IntermediatePoint(aT1, aT2); |
763 | aC3D->D0(aT, aPx); |
df017cc9 |
764 | // |
4e57c75e |
765 | BOPTools_AlgoTools2D::EdgeTangent(theE1, aT, aVTgt); |
df017cc9 |
766 | gp_Dir aDTgt(aVTgt), aDTgt2; |
767 | aOr = theE1.Orientation(); |
768 | // |
769 | GetFaceDir(theE1, theF1, aPx, aT, aDTgt, aDN1, aDBF, theContext); |
770 | // |
4e57c75e |
771 | aDTF=aDN1^aDBF; |
772 | // |
773 | aIt.Initialize(theLCSOff); |
774 | for (; aIt.More(); aIt.Next()) { |
775 | const BOPTools_CoupleOfShape& aCS=aIt.Value(); |
776 | const TopoDS_Edge& aE2=(*(TopoDS_Edge*)(&aCS.Shape1())); |
777 | const TopoDS_Face& aF2=(*(TopoDS_Face*)(&aCS.Shape2())); |
778 | // |
df017cc9 |
779 | aDTgt2 = (aE2.Orientation()==aOr) ? aDTgt : aDTgt.Reversed(); |
780 | GetFaceDir(aE2, aF2, aPx, aT, aDTgt2, aDN2, aDBF2, theContext); |
4e57c75e |
781 | //Angle |
782 | aAngle=AngleWithRef(aDBF, aDBF2, aDTF); |
783 | // |
784 | if(aAngle<0.) { |
785 | aAngle=aTwoPI+aAngle; |
786 | } |
df017cc9 |
787 | // |
788 | if (aAngle<Precision::Angular()) { |
789 | if (aF2==theF1) { |
790 | aAngle=M_PI; |
791 | } |
792 | else if (aF2.IsSame(theF1)) { |
793 | aAngle=aTwoPI; |
794 | } |
795 | } |
796 | // |
4e57c75e |
797 | if (aAngle<aAngleMin){ |
798 | aAngleMin=aAngle; |
799 | theFOff=aF2; |
800 | } |
801 | } |
802 | } |
803 | //======================================================================= |
804 | //function : GetEdgeOff |
805 | //purpose : |
806 | //======================================================================= |
807 | Standard_Boolean BOPTools_AlgoTools::GetEdgeOff(const TopoDS_Edge& theE1, |
808 | const TopoDS_Face& theF2, |
809 | TopoDS_Edge& theE2) |
810 | { |
811 | Standard_Boolean bFound; |
812 | TopAbs_Orientation aOr1, aOr1C, aOr2; |
813 | TopExp_Explorer anExp; |
814 | // |
815 | bFound=Standard_False; |
816 | aOr1=theE1.Orientation(); |
817 | aOr1C=TopAbs::Reverse(aOr1); |
818 | // |
819 | anExp.Init(theF2, TopAbs_EDGE); |
820 | for (; anExp.More(); anExp.Next()) { |
821 | const TopoDS_Edge& aEF2=(*(TopoDS_Edge*)(&anExp.Current())); |
822 | if (aEF2.IsSame(theE1)) { |
823 | aOr2=aEF2.Orientation(); |
824 | if (aOr2==aOr1C) { |
825 | theE2=aEF2; |
826 | bFound=!bFound; |
827 | return bFound; |
828 | } |
829 | } |
830 | } |
831 | return bFound; |
832 | } |
833 | |
834 | //======================================================================= |
835 | //function : AreFacesSameDomain |
836 | //purpose : |
837 | //======================================================================= |
838 | Standard_Boolean BOPTools_AlgoTools::AreFacesSameDomain(const TopoDS_Face& theF1, |
839 | const TopoDS_Face& theF2, |
840 | Handle(BOPInt_Context)& theContext) |
841 | { |
842 | Standard_Boolean bFlag; |
e656bcbe |
843 | Standard_Integer iErr; |
4e57c75e |
844 | Standard_Real aTolF1, aTolF2, aTol; |
845 | gp_Pnt2d aP2D; |
846 | gp_Pnt aP; |
847 | TopoDS_Face aF1, aF2; |
848 | TopoDS_Edge aE1; |
849 | TopExp_Explorer aExp; |
850 | // |
851 | bFlag=Standard_False; |
852 | // |
853 | aF1=theF1; |
854 | aF1.Orientation(TopAbs_FORWARD); |
855 | aF2=theF2; |
856 | aF2.Orientation(TopAbs_FORWARD); |
857 | // |
858 | aTolF1=BRep_Tool::Tolerance(aF1); |
859 | // 1 |
4e57c75e |
860 | aExp.Init(aF1, TopAbs_EDGE); |
861 | for (; aExp.More(); aExp.Next()) { |
862 | aE1=(*(TopoDS_Edge*)(&aExp.Current())); |
863 | if (!BRep_Tool::Degenerated(aE1)) { |
4e57c75e |
864 | Standard_Real aTolE = BRep_Tool::Tolerance(aE1); |
865 | aTolF1 = (aTolE > aTolF1) ? aTolE : aTolF1; |
866 | } |
867 | } |
4e57c75e |
868 | // 2 |
869 | aTolF2=BRep_Tool::Tolerance(aF2); |
870 | aTol=aTolF1+aTolF2; |
871 | // |
e656bcbe |
872 | iErr = BOPTools_AlgoTools3D::PointInFace(aF1, aP, aP2D, theContext); |
873 | if (!iErr) { |
874 | bFlag=theContext->IsValidPointForFace(aP, aF2, aTol); |
875 | } |
4e57c75e |
876 | // |
877 | return bFlag; |
878 | } |
879 | |
880 | //======================================================================= |
881 | //function : CheckSameGeom |
882 | //purpose : |
883 | //======================================================================= |
884 | Standard_Boolean BOPTools_AlgoTools::CheckSameGeom(const TopoDS_Face& theF1, |
885 | const TopoDS_Face& theF2, |
886 | Handle(BOPInt_Context)& theContext) |
887 | { |
888 | Standard_Boolean bRet; |
889 | Standard_Real aTolF1, aTolF2, aTol; |
890 | gp_Pnt2d aP2D; |
891 | gp_Pnt aP; |
892 | TopExp_Explorer aExp; |
893 | // |
894 | bRet=Standard_False; |
895 | aExp.Init(theF1, TopAbs_EDGE); |
896 | for (; aExp.More(); aExp.Next()) { |
897 | const TopoDS_Edge& aE=(*(TopoDS_Edge*)(&aExp.Current())); |
898 | if (!BRep_Tool::Degenerated(aE)) { |
899 | aTolF1=BRep_Tool::Tolerance(theF1); |
900 | aTolF2=BRep_Tool::Tolerance(theF2); |
901 | aTol=aTolF1+aTolF2; |
902 | BOPTools_AlgoTools3D::PointNearEdge(aE, theF1, aP2D, aP, theContext); |
903 | bRet=theContext->IsValidPointForFace(aP, theF2, aTol); |
904 | break; |
905 | } |
906 | } |
907 | return bRet; |
908 | } |
909 | //======================================================================= |
910 | // function: Sense |
911 | // purpose: |
912 | //======================================================================= |
913 | Standard_Integer BOPTools_AlgoTools::Sense (const TopoDS_Face& theF1, |
914 | const TopoDS_Face& theF2) |
915 | { |
916 | Standard_Integer iSense=0; |
917 | gp_Dir aDNF1, aDNF2; |
918 | TopoDS_Edge aE1, aE2; |
919 | TopExp_Explorer aExp; |
920 | // |
921 | aExp.Init(theF1, TopAbs_EDGE); |
922 | for (; aExp.More(); aExp.Next()) { |
923 | aE1=(*(TopoDS_Edge*)(&aExp.Current())); |
924 | if (!BRep_Tool::Degenerated(aE1)) { |
925 | if (!BRep_Tool::IsClosed(aE1, theF1)) { |
926 | break; |
927 | } |
928 | } |
929 | } |
930 | // |
931 | aExp.Init(theF2, TopAbs_EDGE); |
932 | for (; aExp.More(); aExp.Next()) { |
933 | aE2=(*(TopoDS_Edge*)(&aExp.Current())); |
934 | if (!BRep_Tool::Degenerated(aE2)) { |
935 | if (!BRep_Tool::IsClosed(aE2, theF2)) { |
936 | if (aE2.IsSame(aE1)) { |
937 | iSense=1; |
938 | break; |
939 | } |
940 | } |
941 | } |
942 | } |
943 | // |
944 | if (!iSense) { |
945 | return iSense; |
946 | } |
947 | // |
948 | BOPTools_AlgoTools3D::GetNormalToFaceOnEdge(aE1, theF1, aDNF1); |
949 | BOPTools_AlgoTools3D::GetNormalToFaceOnEdge(aE2, theF2, aDNF2); |
950 | // |
951 | iSense=BOPTools_AlgoTools3D::SenseFlag(aDNF1, aDNF2); |
952 | // |
953 | return iSense; |
954 | } |
955 | //======================================================================= |
956 | // function: IsSplitToReverse |
957 | // purpose: |
958 | //======================================================================= |
959 | Standard_Boolean BOPTools_AlgoTools::IsSplitToReverse(const TopoDS_Shape& theSp, |
960 | const TopoDS_Shape& theSr, |
961 | Handle(BOPInt_Context)& theContext) |
962 | { |
963 | Standard_Boolean bRet; |
964 | TopAbs_ShapeEnum aType; |
965 | // |
966 | bRet=Standard_False; |
967 | // |
968 | aType=theSp.ShapeType(); |
969 | switch (aType) { |
970 | case TopAbs_EDGE: { |
971 | const TopoDS_Edge& aESp=(*(TopoDS_Edge*)(&theSp)); |
972 | const TopoDS_Edge& aESr=(*(TopoDS_Edge*)(&theSr)); |
973 | bRet=BOPTools_AlgoTools::IsSplitToReverse(aESp, aESr, theContext); |
974 | } |
975 | break; |
976 | // |
977 | case TopAbs_FACE: { |
978 | const TopoDS_Face& aFSp=(*(TopoDS_Face*)(&theSp)); |
979 | const TopoDS_Face& aFSr=(*(TopoDS_Face*)(&theSr)); |
980 | bRet=BOPTools_AlgoTools::IsSplitToReverse(aFSp, aFSr, theContext); |
981 | } |
982 | break; |
983 | // |
984 | default: |
985 | break; |
986 | } |
987 | return bRet; |
988 | } |
989 | //======================================================================= |
990 | //function :IsSplitToReverse |
991 | //purpose : |
992 | //======================================================================= |
993 | Standard_Boolean BOPTools_AlgoTools::IsSplitToReverse(const TopoDS_Face& theFSp, |
994 | const TopoDS_Face& theFSr, |
995 | Handle(BOPInt_Context)& theContext) |
996 | { |
997 | Standard_Boolean bRet, bFound, bInFace; |
998 | Standard_Real aT1, aT2, aT, aU, aV, aScPr; |
999 | gp_Pnt aPFSp, aPFSr; |
1000 | gp_Dir aDNFSp; |
1001 | gp_Vec aD1U, aD1V; |
1002 | Handle(Geom_Surface) aSr, aSp; |
1003 | TopAbs_Orientation aOrSr, aOrSp; |
1004 | TopExp_Explorer anExp; |
1005 | TopoDS_Edge aESp; |
1006 | // |
1007 | bRet=Standard_False; |
1008 | // |
1009 | aSr=BRep_Tool::Surface(theFSr); |
1010 | aSp=BRep_Tool::Surface(theFSp); |
1011 | if (aSr==aSp) { |
1012 | aOrSr=theFSr.Orientation(); |
1013 | aOrSp=theFSp.Orientation(); |
1014 | bRet=(aOrSr!=aOrSp); |
1015 | return bRet; |
1016 | } |
1017 | // |
1018 | bFound=Standard_False; |
1019 | anExp.Init(theFSp, TopAbs_EDGE); |
1020 | for (; anExp.More(); anExp.Next()) { |
1021 | aESp=(*(TopoDS_Edge*)(&anExp.Current())); |
1022 | if (!BRep_Tool::Degenerated(aESp)) { |
1023 | if (!BRep_Tool::IsClosed(aESp, theFSp)) { |
1024 | bFound=!bFound; |
1025 | break; |
1026 | } |
1027 | } |
1028 | } |
1029 | if (!bFound) { |
1030 | Standard_Boolean bFlag; |
1031 | Standard_Integer iErr; |
1032 | gp_Pnt2d aP2DFSp; |
1033 | // |
1034 | iErr=BOPTools_AlgoTools3D::PointInFace(theFSp, aPFSp, aP2DFSp, theContext); |
1035 | if (iErr) { |
1036 | return bRet; |
1037 | } |
1038 | // |
1039 | aP2DFSp.Coord(aU, aV); |
1040 | bFlag=BOPTools_AlgoTools3D::GetNormalToSurface(aSp, aU, aV, aDNFSp); |
1041 | if (!bFlag) { |
1042 | return bRet; |
1043 | } |
1044 | } |
1045 | else { |
1046 | BRep_Tool::Range(aESp, aT1, aT2); |
1047 | aT=BOPTools_AlgoTools2D::IntermediatePoint(aT1, aT2); |
1048 | BOPTools_AlgoTools3D::GetApproxNormalToFaceOnEdge(aESp, theFSp, aT, aPFSp, aDNFSp, theContext); |
1049 | } |
1050 | // |
1051 | // Parts of theContext->ComputeVS(..) |
1052 | GeomAPI_ProjectPointOnSurf& aProjector=theContext->ProjPS(theFSr); |
1053 | aProjector.Perform(aPFSp); |
1054 | if (!aProjector.IsDone()) { |
1055 | return bRet; |
1056 | } |
1057 | // |
1058 | aProjector.LowerDistanceParameters(aU, aV); |
1059 | gp_Pnt2d aP2D(aU, aV); |
1060 | bInFace=theContext->IsPointInFace (theFSr, aP2D); |
1061 | if (!bInFace) { |
1062 | return bRet; |
1063 | } |
1064 | // |
1065 | aSr->D1(aU, aV, aPFSr, aD1U, aD1V); |
1066 | gp_Dir aDD1U(aD1U); |
1067 | gp_Dir aDD1V(aD1V); |
1068 | gp_Dir aDNFSr=aDD1U^aDD1V; |
1069 | if (theFSr.Orientation()==TopAbs_REVERSED){ |
1070 | aDNFSr.Reverse(); |
1071 | } |
1072 | // |
1073 | aScPr=aDNFSp*aDNFSr; |
1074 | bRet=(aScPr<0.); |
1075 | // |
1076 | return bRet; |
1077 | } |
1078 | //======================================================================= |
1079 | //function :IsSplitToReverse |
1080 | //purpose : |
1081 | //======================================================================= |
1082 | Standard_Boolean BOPTools_AlgoTools::IsSplitToReverse(const TopoDS_Edge& aEF1, |
1083 | const TopoDS_Edge& aEF2, |
1084 | Handle(BOPInt_Context)& theContext) |
1085 | { |
1086 | Standard_Boolean bRet, bIsDegenerated; |
1087 | // |
1088 | bRet=Standard_False; |
1089 | bIsDegenerated=(BRep_Tool::Degenerated(aEF1) || |
1090 | BRep_Tool::Degenerated(aEF2)); |
1091 | if (bIsDegenerated) { |
1092 | return bRet; |
1093 | } |
1094 | // |
1095 | Standard_Real a, b; |
1096 | TopAbs_Orientation aOrE, aOrSp; |
1097 | Handle(Geom_Curve)aC1, aC2; |
1098 | // |
1099 | aC2=BRep_Tool::Curve(aEF2, a, b); |
1100 | aC1=BRep_Tool::Curve(aEF1, a, b); |
1101 | // |
1102 | if (aC1==aC2) { |
1103 | aOrE=aEF2.Orientation(); |
1104 | aOrSp=aEF1.Orientation(); |
1105 | bRet=(aOrE!=aOrSp); |
1106 | return bRet; |
1107 | } |
1108 | // |
1109 | Standard_Real aT1, aT2, aScPr; |
1110 | gp_Vec aV1, aV2; |
1111 | gp_Pnt aP; |
1112 | // |
1113 | aT1=BOPTools_AlgoTools2D::IntermediatePoint(a, b); |
1114 | aC1->D0(aT1, aP); |
1115 | BOPTools_AlgoTools2D::EdgeTangent(aEF1, aT1, aV1); |
1116 | gp_Dir aDT1(aV1); |
1117 | // |
1118 | theContext->ProjectPointOnEdge(aP, aEF2, aT2); |
1119 | // |
1120 | BOPTools_AlgoTools2D::EdgeTangent(aEF2, aT2, aV2); |
1121 | gp_Dir aDT2(aV2); |
1122 | // |
1123 | aScPr=aDT1*aDT2; |
1124 | bRet=(aScPr<0.); |
1125 | // |
1126 | return bRet; |
1127 | } |
1128 | |
1129 | //======================================================================= |
1130 | //function : IsHole |
1131 | //purpose : |
1132 | //======================================================================= |
1133 | Standard_Boolean BOPTools_AlgoTools::IsHole(const TopoDS_Shape& aW, |
1134 | const TopoDS_Shape& aFace) |
1135 | { |
1136 | Standard_Boolean bIsHole; |
1137 | Standard_Integer i, aNbS; |
1138 | Standard_Real aT1, aT2, aS; |
1139 | Standard_Real aU1, aU2, aU, dU; |
1140 | Standard_Real aX1, aY1, aX0, aY0; |
1141 | TopAbs_Orientation aOr; |
1142 | |
1143 | gp_Pnt2d aP2D0, aP2D1; |
1144 | Handle(Geom2d_Curve) aC2D; |
1145 | TopoDS_Face aF, aFF; |
1146 | TopoDS_Iterator aItW; |
1147 | // |
1148 | bIsHole=Standard_False; |
1149 | // |
1150 | aF=(*(TopoDS_Face *)(&aFace)); |
1151 | aFF=aF; |
1152 | aFF.Orientation(TopAbs_FORWARD); |
1153 | // |
1154 | aS=0.; |
1155 | aItW.Initialize(aW); |
1156 | for (; aItW.More(); aItW.Next()) { |
1157 | const TopoDS_Edge& aE=(*(TopoDS_Edge *)(&aItW.Value())); |
1158 | aOr=aE.Orientation(); |
1159 | if (!(aOr==TopAbs_FORWARD || |
1160 | aOr==TopAbs_REVERSED)) { |
1161 | continue; |
1162 | } |
1163 | // |
1164 | aC2D=BRep_Tool::CurveOnSurface(aE, aFF, aT1, aT2); |
1165 | if (aC2D.IsNull()) { |
1166 | break; //xx |
1167 | } |
1168 | // |
1169 | BRepAdaptor_Curve2d aBAC2D(aE, aFF); |
1170 | aNbS=Geom2dInt_Geom2dCurveTool::NbSamples(aBAC2D); |
1171 | if (aNbS>2) { |
1172 | aNbS*=4; |
1173 | } |
1174 | // |
1175 | dU=(aT2-aT1)/(Standard_Real)(aNbS-1); |
1176 | aU =aT1; |
1177 | aU1=aT1; |
1178 | aU2=aT2; |
1179 | if (aOr==TopAbs_REVERSED) { |
1180 | aU =aT2; |
1181 | aU1=aT2; |
1182 | aU2=aT1; |
1183 | dU=-dU; |
1184 | } |
1185 | // |
1186 | aC2D->D0(aU, aP2D0); |
1187 | for(i=2; i<=aNbS; i++) { |
1188 | aU=aU1+(i-1)*dU; |
1189 | aC2D->D0(aU, aP2D1); |
1190 | aP2D0.Coord(aX0, aY0); |
1191 | aP2D1.Coord(aX1, aY1); |
1192 | // |
1193 | aS=aS+(aY0+aY1)*(aX1-aX0); |
1194 | // |
1195 | aP2D0=aP2D1; |
1196 | } |
1197 | }//for (; aItW.More(); aItW.Next()) { |
1198 | bIsHole=(aS>0.); |
1199 | return bIsHole; |
1200 | } |
1201 | |
1202 | //======================================================================= |
1203 | // function: MakeContainer |
1204 | // purpose: |
1205 | //======================================================================= |
1206 | void BOPTools_AlgoTools::MakeContainer(const TopAbs_ShapeEnum theType, |
1207 | TopoDS_Shape& theC) |
1208 | { |
1209 | BRep_Builder aBB; |
1210 | // |
1211 | switch(theType) { |
1212 | case TopAbs_COMPOUND:{ |
1213 | TopoDS_Compound aC; |
1214 | aBB.MakeCompound(aC); |
1215 | theC=aC; |
1216 | } |
1217 | break; |
1218 | // |
1219 | case TopAbs_COMPSOLID:{ |
1220 | TopoDS_CompSolid aCS; |
1221 | aBB.MakeCompSolid(aCS); |
1222 | theC=aCS; |
1223 | } |
1224 | break; |
1225 | // |
1226 | case TopAbs_SOLID:{ |
1227 | TopoDS_Solid aSolid; |
1228 | aBB.MakeSolid(aSolid); |
1229 | theC=aSolid; |
1230 | } |
1231 | break; |
1232 | // |
1233 | // |
1234 | case TopAbs_SHELL:{ |
1235 | TopoDS_Shell aShell; |
1236 | aBB.MakeShell(aShell); |
1237 | theC=aShell; |
1238 | } |
1239 | break; |
1240 | // |
1241 | case TopAbs_WIRE: { |
1242 | TopoDS_Wire aWire; |
1243 | aBB.MakeWire(aWire); |
1244 | theC=aWire; |
1245 | } |
1246 | break; |
1247 | // |
1248 | default: |
1249 | break; |
1250 | } |
1251 | } |
1252 | //======================================================================= |
1253 | // function: MakePCurve |
1254 | // purpose: |
1255 | //======================================================================= |
1256 | void BOPTools_AlgoTools::MakePCurve(const TopoDS_Edge& aE, |
1257 | const TopoDS_Face& aF1, |
1258 | const TopoDS_Face& aF2, |
1259 | const IntTools_Curve& aIC, |
1260 | const Standard_Boolean bPC1, |
df017cc9 |
1261 | const Standard_Boolean bPC2) |
4e57c75e |
1262 | |
1263 | { |
1264 | Standard_Integer i; |
1265 | Standard_Real aTolE, aT1, aT2, aOutFirst, aOutLast, aOutTol; |
1266 | Handle(Geom2d_Curve) aC2D, aC2DA, aC2Dx1; |
1267 | TopoDS_Face aFFWD; |
1268 | BRep_Builder aBB; |
1269 | Standard_Boolean bPC; |
1270 | // |
1271 | aTolE=BRep_Tool::Tolerance(aE); |
1272 | // |
1273 | const Handle(Geom_Curve)& aC3DE=BRep_Tool::Curve(aE, aT1, aT2); |
1274 | Handle(Geom_TrimmedCurve)aC3DETrim=new Geom_TrimmedCurve(aC3DE, aT1, aT2); |
1275 | // |
1276 | for (i=0; i<2; ++i) { |
1277 | bPC = !i ? bPC1 : bPC2; |
1278 | if (!bPC) { |
1279 | continue; |
1280 | } |
1281 | // |
1282 | if (!i) { |
1283 | aFFWD=aF1; |
1284 | aC2Dx1=aIC.FirstCurve2d(); |
1285 | } |
1286 | else { |
1287 | aFFWD=aF2; |
1288 | aC2Dx1=aIC.SecondCurve2d(); |
1289 | } |
1290 | // |
1291 | aFFWD.Orientation(TopAbs_FORWARD); |
1292 | // |
1293 | aC2D=aC2Dx1; |
1294 | if (aC2D.IsNull()) { |
1295 | BOPTools_AlgoTools2D::BuildPCurveForEdgeOnFace(aE, aFFWD); |
1296 | BOPTools_AlgoTools2D::CurveOnSurface(aE, aFFWD, aC2D, |
1297 | aOutFirst, aOutLast, |
1298 | aOutTol); |
1299 | } |
1300 | // |
1301 | if (aC3DE->IsPeriodic()) { |
1302 | BOPTools_AlgoTools2D::AdjustPCurveOnFace(aFFWD, aT1, aT2, aC2D, aC2DA); |
1303 | } |
1304 | else { |
1305 | BOPTools_AlgoTools2D::AdjustPCurveOnFace(aFFWD, aC3DETrim, aC2D, aC2DA); |
1306 | } |
1307 | // |
1308 | aBB.UpdateEdge(aE, aC2DA, aFFWD, aTolE); |
1309 | //BRepLib::SameParameter(aE); |
1310 | } |
1311 | BRepLib::SameParameter(aE); |
1312 | } |
1313 | //======================================================================= |
1314 | // function: MakeEdge |
1315 | // purpose: |
1316 | //======================================================================= |
1317 | void BOPTools_AlgoTools::MakeEdge(const IntTools_Curve& theIC, |
1318 | const TopoDS_Vertex& theV1, |
1319 | const Standard_Real theT1, |
1320 | const TopoDS_Vertex& theV2, |
1321 | const Standard_Real theT2, |
1322 | const Standard_Real theTolR3D, |
1323 | TopoDS_Edge& theE) |
1324 | { |
1325 | Standard_Real aTolV; |
1326 | BRep_Builder aBB; |
1327 | // |
1328 | BOPTools_AlgoTools::MakeSectEdge (theIC, theV1, theT1, theV2, theT2, theE); |
1329 | // |
1330 | aBB.UpdateEdge(theE, theTolR3D); |
1331 | // |
1332 | aTolV=BRep_Tool::Tolerance(theV1); |
1333 | if (aTolV<theTolR3D) { |
1334 | aBB.UpdateVertex(theV1, theTolR3D); |
1335 | } |
1336 | // |
1337 | aTolV=BRep_Tool::Tolerance(theV2); |
1338 | if (aTolV<theTolR3D) { |
1339 | aBB.UpdateVertex(theV2, theTolR3D); |
1340 | } |
1341 | } |
1342 | //======================================================================= |
1343 | // function: ComputeVV |
1344 | // purpose: |
1345 | //======================================================================= |
1346 | Standard_Integer BOPTools_AlgoTools::ComputeVV(const TopoDS_Vertex& aV1, |
1347 | const gp_Pnt& aP2, |
1348 | const Standard_Real aTolP2) |
1349 | { |
1350 | Standard_Real aTolV1, aTolSum, aTolSum2, aD2; |
1351 | gp_Pnt aP1; |
1352 | // |
1353 | aTolV1=BRep_Tool::Tolerance(aV1); |
1354 | |
1355 | aTolSum=aTolV1+aTolP2; |
1356 | aTolSum2=aTolSum*aTolSum; |
1357 | // |
1358 | aP1=BRep_Tool::Pnt(aV1); |
1359 | // |
1360 | aD2=aP1.SquareDistance(aP2); |
1361 | if (aD2>aTolSum2) { |
1362 | return 1; |
1363 | } |
1364 | return 0; |
1365 | } |
1366 | //======================================================================= |
1367 | // function: ComputeVV |
1368 | // purpose: |
1369 | //======================================================================= |
1370 | Standard_Integer BOPTools_AlgoTools::ComputeVV(const TopoDS_Vertex& aV1, |
1371 | const TopoDS_Vertex& aV2) |
1372 | { |
1373 | Standard_Real aTolV1, aTolV2, aTolSum, aTolSum2, aD2; |
1374 | gp_Pnt aP1, aP2; |
1375 | // |
1376 | aTolV1=BRep_Tool::Tolerance(aV1); |
1377 | aTolV2=BRep_Tool::Tolerance(aV2); |
1378 | aTolSum=aTolV1+aTolV2; |
1379 | aTolSum2=aTolSum*aTolSum; |
1380 | // |
1381 | aP1=BRep_Tool::Pnt(aV1); |
1382 | aP2=BRep_Tool::Pnt(aV2); |
1383 | // |
1384 | aD2=aP1.SquareDistance(aP2); |
1385 | if (aD2>aTolSum2) { |
1386 | return 1; |
1387 | } |
1388 | return 0; |
1389 | } |
1390 | //======================================================================= |
1391 | // function: MakeVertex |
1392 | // purpose : |
1393 | //======================================================================= |
1394 | void BOPTools_AlgoTools::MakeVertex(BOPCol_ListOfShape& aLV, |
1395 | TopoDS_Vertex& aVnew) |
1396 | { |
1397 | Standard_Integer aNb; |
1398 | Standard_Real aTi, aDi, aDmax; |
1399 | gp_Pnt aPi, aP; |
1400 | gp_XYZ aXYZ(0.,0.,0.), aXYZi; |
1401 | BOPCol_ListIteratorOfListOfShape aIt; |
1402 | // |
1403 | aNb=aLV.Extent(); |
1404 | if (aNb) { |
1405 | aIt.Initialize(aLV); |
1406 | for (; aIt.More(); aIt.Next()) { |
1407 | TopoDS_Vertex& aVi=*((TopoDS_Vertex*)(&aIt.Value())); |
1408 | aPi=BRep_Tool::Pnt(aVi); |
1409 | aXYZi=aPi.XYZ(); |
1410 | aXYZ=aXYZ+aXYZi; |
1411 | } |
1412 | // |
1413 | aXYZ.Divide((Standard_Real)aNb); |
1414 | aP.SetXYZ(aXYZ); |
1415 | // |
1416 | aDmax=-1.; |
1417 | aIt.Initialize(aLV); |
1418 | for (; aIt.More(); aIt.Next()) { |
1419 | TopoDS_Vertex& aVi=*((TopoDS_Vertex*)(&aIt.Value())); |
1420 | aPi=BRep_Tool::Pnt(aVi); |
1421 | aTi=BRep_Tool::Tolerance(aVi); |
1422 | aDi=aP.SquareDistance(aPi); |
1423 | aDi=fsqrt(aDi); |
1424 | aDi=aDi+aTi; |
1425 | if (aDi > aDmax) { |
1426 | aDmax=aDi; |
1427 | } |
1428 | } |
1429 | // |
1430 | BRep_Builder aBB; |
1431 | aBB.MakeVertex (aVnew, aP, aDmax); |
1432 | } |
1433 | } |
1434 | //======================================================================= |
1435 | //function : GetEdgeOnFace |
1436 | //purpose : |
1437 | //======================================================================= |
1438 | Standard_Boolean BOPTools_AlgoTools::GetEdgeOnFace(const TopoDS_Edge& theE1, |
1439 | const TopoDS_Face& theF2, |
1440 | TopoDS_Edge& theE2) |
1441 | { |
1442 | Standard_Boolean bFound; |
1443 | TopoDS_Iterator aItF, aItW; |
1444 | // |
1445 | bFound=Standard_False; |
1446 | // |
1447 | aItF.Initialize(theF2); |
1448 | for (; aItF.More(); aItF.Next()) { |
1449 | const TopoDS_Shape& aW=aItF.Value(); |
1450 | aItW.Initialize(aW); |
1451 | for (; aItW.More(); aItW.Next()) { |
1452 | const TopoDS_Shape& aE=aItW.Value(); |
1453 | if (aE.IsSame(theE1)) { |
1454 | theE2=(*(TopoDS_Edge*)(&aE)); |
1455 | bFound=!bFound; |
1456 | return bFound; |
1457 | } |
1458 | } |
1459 | } |
1460 | return bFound; |
1461 | } |
1462 | //======================================================================= |
1463 | //function : FindFacePairs |
1464 | //purpose : |
1465 | //======================================================================= |
1466 | Standard_Boolean FindFacePairs (const TopoDS_Edge& theE, |
1467 | const BOPCol_ListOfShape& thLF, |
1468 | BOPTools_ListOfCoupleOfShape& theLCFF, |
1469 | Handle(BOPInt_Context)& theContext) |
1470 | { |
1471 | Standard_Boolean bFound; |
1472 | Standard_Integer i, aNbCEF; |
1473 | TopAbs_Orientation aOr, aOrC; |
1474 | BOPCol_MapOfShape aMFP; |
1475 | TopoDS_Face aF1, aF2; |
1476 | TopoDS_Edge aEL, aE1; |
1477 | BOPCol_ListIteratorOfListOfShape aItLF; |
1478 | BOPTools_CoupleOfShape aCEF, aCFF; |
1479 | BOPTools_ListOfCoupleOfShape aLCEF, aLCEFx; |
1480 | BOPTools_ListIteratorOfListOfCoupleOfShape aIt; |
1481 | // |
1482 | bFound=Standard_True; |
1483 | // |
1484 | // Preface aLCEF |
1485 | aItLF.Initialize(thLF); |
1486 | for (; aItLF.More(); aItLF.Next()) { |
1487 | const TopoDS_Face& aFL=(*(TopoDS_Face*)(&aItLF.Value())); |
1488 | // |
1489 | bFound=BOPTools_AlgoTools::GetEdgeOnFace(theE, aFL, aEL); |
1490 | if (!bFound) { |
1491 | return bFound; // it can not be so |
1492 | } |
1493 | // |
1494 | aCEF.SetShape1(aEL); |
1495 | aCEF.SetShape2(aFL); |
1496 | aLCEF.Append(aCEF); |
1497 | } |
1498 | // |
1499 | aNbCEF=aLCEF.Extent(); |
1500 | while(aNbCEF) { |
1501 | // |
1502 | // aLCEFx |
1503 | aLCEFx.Clear(); |
1504 | aIt.Initialize(aLCEF); |
1505 | for (i=0; aIt.More(); aIt.Next(), ++i) { |
1506 | const BOPTools_CoupleOfShape& aCSx=aIt.Value(); |
1507 | const TopoDS_Shape& aEx=aCSx.Shape1(); |
1508 | const TopoDS_Shape& aFx=aCSx.Shape2(); |
1509 | // |
1510 | aOr=aEx.Orientation(); |
1511 | // |
1512 | if (!i) { |
1513 | aOrC=TopAbs::Reverse(aOr); |
1514 | aE1=(*(TopoDS_Edge*)(&aEx)); |
1515 | aF1=(*(TopoDS_Face*)(&aFx)); |
1516 | aMFP.Add(aFx); |
1517 | continue; |
1518 | } |
1519 | // |
1520 | if (aOr==aOrC) { |
1521 | aLCEFx.Append(aCSx); |
1522 | aMFP.Add(aFx); |
1523 | } |
1524 | } |
1525 | // |
1526 | // F2 |
1527 | BOPTools_AlgoTools::GetFaceOff(aE1, aF1, aLCEFx, aF2, theContext); |
1528 | // |
1529 | aCFF.SetShape1(aF1); |
1530 | aCFF.SetShape2(aF2); |
1531 | theLCFF.Append(aCFF); |
1532 | // |
1533 | aMFP.Add(aF1); |
1534 | aMFP.Add(aF2); |
1535 | // |
1536 | // refine aLCEF |
1537 | aLCEFx.Clear(); |
1538 | aLCEFx=aLCEF; |
1539 | aLCEF.Clear(); |
1540 | aIt.Initialize(aLCEFx); |
1541 | for (; aIt.More(); aIt.Next()) { |
1542 | const BOPTools_CoupleOfShape& aCSx=aIt.Value(); |
1543 | const TopoDS_Shape& aFx=aCSx.Shape2(); |
1544 | if (!aMFP.Contains(aFx)) { |
1545 | aLCEF.Append(aCSx); |
1546 | } |
1547 | } |
1548 | // |
1549 | aNbCEF=aLCEF.Extent(); |
1550 | }//while(aNbCEF) { |
1551 | // |
1552 | return bFound; |
1553 | } |
1554 | //======================================================================= |
1555 | //function : AngleWithRef |
1556 | //purpose : |
1557 | //======================================================================= |
1558 | Standard_Real AngleWithRef(const gp_Dir& theD1, |
1559 | const gp_Dir& theD2, |
1560 | const gp_Dir& theDRef) |
1561 | { |
1562 | Standard_Real aCosinus, aSinus, aBeta, aHalfPI, aScPr; |
1563 | gp_XYZ aXYZ; |
1564 | // |
1565 | aHalfPI=0.5*M_PI; |
1566 | // |
1567 | const gp_XYZ& aXYZ1=theD1.XYZ(); |
1568 | const gp_XYZ& aXYZ2=theD2.XYZ(); |
1569 | aXYZ=aXYZ1.Crossed(aXYZ2); |
1570 | aSinus=aXYZ.Modulus(); |
1571 | aCosinus=theD1*theD2; |
1572 | // |
1573 | aBeta=0.; |
1574 | if (aSinus>=0.) { |
1575 | aBeta=aHalfPI*(1.-aCosinus); |
1576 | } |
1577 | else { |
1578 | aBeta=2.*M_PI-aHalfPI*(3.+aCosinus); |
1579 | } |
1580 | // |
1581 | aScPr=aXYZ.Dot(theDRef.XYZ()); |
1582 | if (aScPr<0.) { |
1583 | aBeta=-aBeta; |
1584 | } |
1585 | return aBeta; |
1586 | } |
1587 | //======================================================================= |
1588 | //function : fsqrt |
1589 | //purpose : |
1590 | //======================================================================= |
1591 | Standard_Real fsqrt(Standard_Real val) |
1592 | { |
1593 | union { |
1594 | int tmp; |
1595 | float val; |
1596 | } u; |
1597 | // |
1598 | u.val = (float)val; |
1599 | u.tmp -= 1<<23; /* Remove last bit so 1.0 gives 1.0 */ |
1600 | /* tmp is now an approximation to logbase2(val) */ |
1601 | u.tmp >>= 1; /* divide by 2 */ |
1602 | u.tmp += 1<<29; /* add 64 to exponent: (e+127)/2 =(e/2)+63, */ |
1603 | /* that represents (e/2)-64 but we want e/2 */ |
1604 | return (double)u.val; |
1605 | } |
1606 | |
4e57c75e |
1607 | //======================================================================= |
1608 | // function: IsBlockInOnFace |
1609 | // purpose: |
1610 | //======================================================================= |
1611 | Standard_Boolean BOPTools_AlgoTools::IsBlockInOnFace (const IntTools_Range& aShrR, |
1612 | const TopoDS_Face& aF, |
1613 | const TopoDS_Edge& aE1, |
1614 | Handle(BOPInt_Context)& aContext) |
1615 | { |
1616 | Standard_Boolean bFlag; |
1617 | Standard_Real f1, l1, ULD, VLD; |
1618 | gp_Pnt2d aP2D; |
1619 | gp_Pnt aP11, aP12; |
1620 | // |
1621 | aShrR.Range(f1, l1); |
1622 | Standard_Real dt=0.0075, k;//dt=0.001, k; |
1623 | k=dt*(l1-f1); |
1624 | f1=f1+k; |
1625 | l1=l1-k; |
1626 | // |
1627 | // Treatment P11 |
1628 | BOPTools_AlgoTools::PointOnEdge(aE1, f1, aP11); |
1629 | // |
1630 | GeomAPI_ProjectPointOnSurf& aProjector=aContext->ProjPS(aF); |
1631 | aProjector.Perform(aP11); |
1632 | // |
1633 | bFlag=aProjector.IsDone(); |
1634 | if (!bFlag) { |
1635 | return bFlag; |
1636 | } |
1637 | |
1638 | aProjector.LowerDistanceParameters(ULD, VLD); |
1639 | aP2D.SetCoord(ULD, VLD); |
1640 | // |
1641 | bFlag=aContext->IsPointInOnFace (aF, aP2D); |
1642 | // |
1643 | if (!bFlag) { |
1644 | return bFlag; |
1645 | } |
1646 | // |
1647 | // Treatment P12 |
1648 | BOPTools_AlgoTools::PointOnEdge(aE1, l1, aP12); |
1649 | // |
1650 | aProjector.Perform(aP12); |
1651 | // |
1652 | bFlag=aProjector.IsDone(); |
1653 | if (!bFlag) { |
1654 | return bFlag; |
1655 | } |
1656 | |
1657 | aProjector.LowerDistanceParameters(ULD, VLD); |
1658 | aP2D.SetCoord(ULD, VLD); |
1659 | // |
1660 | bFlag=aContext->IsPointInOnFace (aF, aP2D); |
1661 | // |
1662 | if (!bFlag) { |
1663 | return bFlag; |
1664 | } |
1665 | // |
1666 | // Treatment intemediate |
1667 | Standard_Real m1, aTolF, aTolE, aTol, aDist; |
1668 | m1=IntTools_Tools::IntermediatePoint(f1, l1); |
1669 | BOPTools_AlgoTools::PointOnEdge(aE1, m1, aP12); |
1670 | // |
1671 | aProjector.Perform(aP12); |
1672 | // |
1673 | bFlag=aProjector.IsDone(); |
1674 | if (!bFlag) { |
1675 | return bFlag; |
1676 | } |
1677 | // |
1678 | aTolE=BRep_Tool::Tolerance(aE1); |
1679 | aTolF=BRep_Tool::Tolerance(aF); |
1680 | aTol=aTolE+aTolF; |
1681 | aDist=aProjector.LowerDistance(); |
1682 | if (aDist > aTol){ |
1683 | return Standard_False; |
1684 | } |
1685 | |
1686 | aProjector.LowerDistanceParameters(ULD, VLD); |
1687 | aP2D.SetCoord(ULD, VLD); |
1688 | // |
1689 | bFlag=aContext->IsPointInOnFace (aF, aP2D); |
1690 | // |
1691 | if (!bFlag) { |
1692 | return bFlag; |
1693 | } |
1694 | return bFlag; |
1695 | } |
1696 | |
4e57c75e |
1697 | //======================================================================= |
1698 | //function : IsMicroEdge |
1699 | //purpose : |
1700 | //======================================================================= |
1701 | Standard_Boolean BOPTools_AlgoTools::IsMicroEdge(const TopoDS_Edge& aE, |
1702 | const Handle(BOPInt_Context)& aCtx) |
1703 | { |
1704 | Standard_Boolean bRet; |
1705 | Standard_Integer iErr; |
1706 | Standard_Real aT1, aT2, aTmp; |
1707 | Handle(Geom_Curve) aC3D; |
1708 | TopoDS_Vertex aV1, aV2; |
1709 | // |
1710 | bRet=(BRep_Tool::Degenerated(aE) || |
1711 | !BRep_Tool::IsGeometric(aE)); |
1712 | if (bRet) { |
1713 | return bRet; |
1714 | } |
1715 | // |
1716 | aC3D=BRep_Tool::Curve(aE, aT1, aT2); |
1717 | TopExp::Vertices(aE, aV1, aV2); |
1718 | aT1=BRep_Tool::Parameter(aV1, aE); |
1719 | aT2=BRep_Tool::Parameter(aV2, aE); |
1720 | if (aT2<aT1) { |
1721 | aTmp=aT1; |
1722 | aT1=aT2; |
1723 | aT2=aTmp; |
1724 | } |
1725 | // |
1726 | BOPInt_ShrunkRange aSR; |
1727 | aSR.SetData(aE, aT1, aT2, aV1, aV2, aCtx); |
1728 | aSR.Perform(); |
1729 | iErr=aSR.ErrorStatus(); |
1730 | bRet = !(iErr==0); |
1731 | // |
1732 | return bRet; |
1733 | } |
1734 | |
4e57c75e |
1735 | //======================================================================= |
df017cc9 |
1736 | //function : GetFaceDir |
1737 | //purpose : Get binormal direction for the face in the point aP |
1738 | //======================================================================= |
1739 | void GetFaceDir(const TopoDS_Edge& aE, |
1740 | const TopoDS_Face& aF, |
1741 | const gp_Pnt& aP, |
1742 | const Standard_Real aT, |
1743 | const gp_Dir& aDTgt, |
1744 | gp_Dir& aDN, |
1745 | gp_Dir& aDB, |
1746 | Handle(BOPInt_Context)& theContext) |
1747 | { |
1748 | BOPTools_AlgoTools3D::GetNormalToFaceOnEdge(aE, aF, aT, aDN); |
1749 | if (aF.Orientation()==TopAbs_REVERSED){ |
1750 | aDN.Reverse(); |
1751 | } |
1752 | aDB = aDN^aDTgt; |
1753 | // |
1754 | Handle(Geom_Surface) aS = BRep_Tool::Surface(aF); |
1755 | GeomAdaptor_Surface aGAS(aS); |
1756 | if (aGAS.GetType()!=GeomAbs_Plane) { |
1757 | gp_Pnt aPx; |
1758 | if (!FindPointInFace(aE, aF, aP, aT, aDB, aPx, theContext, aGAS)) { |
1759 | gp_Pnt2d aPx2D; |
1760 | Handle(Geom_Plane) aPL; |
1761 | GeomAPI_ProjectPointOnSurf aProj; |
1762 | // |
1763 | BOPTools_AlgoTools3D::PointNearEdge(aE, aF, aT, aPx2D, aPx, theContext); |
1764 | aPL = new Geom_Plane(aP, aDTgt); |
1765 | aProj.Init(aPx, aPL); |
1766 | aPx = aProj.NearestPoint(); |
1767 | gp_Vec aVec(aP, aPx); |
1768 | aDB.SetXYZ(aVec.XYZ()); |
4e57c75e |
1769 | } |
1770 | } |
df017cc9 |
1771 | } |
1772 | |
1773 | //======================================================================= |
1774 | //function : FindPointInFace |
1775 | //purpose : Find a point in the face in direction of <aDB> |
1776 | //======================================================================= |
1777 | Standard_Boolean FindPointInFace(const TopoDS_Edge& aE, |
1778 | const TopoDS_Face& aF, |
1779 | const gp_Pnt& aP, |
35e08fe8 |
1780 | const Standard_Real /*aT*/, |
df017cc9 |
1781 | gp_Dir& aDB, |
1782 | gp_Pnt& aPOut, |
1783 | Handle(BOPInt_Context)& theContext, |
1784 | const GeomAdaptor_Surface& aGAS) |
1785 | { |
1786 | Standard_Integer aNbItMax; |
1787 | Standard_Real aDt, aDtMin, aTolE, aTolF, aDist; |
1788 | Standard_Boolean bRet; |
1789 | gp_Pnt aP1; |
4e57c75e |
1790 | // |
df017cc9 |
1791 | bRet = Standard_False; |
1792 | aTolE = BRep_Tool::Tolerance(aE); |
1793 | aTolF = BRep_Tool::Tolerance(aF); |
1794 | aDt = 2*(aTolE+aTolF); |
1795 | // |
1796 | aDtMin=5.e-4; |
1797 | if (aDt < aDtMin) { |
1798 | Standard_Real aR; |
1799 | GeomAbs_SurfaceType aSType=aGAS.GetType(); |
1800 | switch (aSType) { |
1801 | case GeomAbs_Cylinder: |
1802 | aR = aGAS.Cylinder().Radius(); |
1803 | break; |
1804 | case GeomAbs_Cone: |
1805 | aR = aGAS.Cone().RefRadius(); |
1806 | break; |
1807 | case GeomAbs_Sphere: |
1808 | aR = aGAS.Sphere().Radius(); |
1809 | break; |
1810 | case GeomAbs_Torus: |
1811 | aR = aGAS.Torus().MinorRadius(); |
1812 | break; |
1813 | case GeomAbs_SurfaceOfRevolution: |
1814 | aR=1.; |
1815 | break; |
1816 | default: |
1817 | aR=0.001; |
1818 | } |
1819 | if (aR < 0.01) { |
1820 | aDtMin=5.e-6; |
1821 | } |
1822 | else if (aR > 100.) { |
1823 | aDtMin*=10; |
1824 | } |
1825 | if (aDt < aDtMin) { |
1826 | aDt=aDtMin; |
4e57c75e |
1827 | } |
1828 | } |
1829 | // |
df017cc9 |
1830 | GeomAPI_ProjectPointOnSurf& aProj=theContext->ProjPS(aF); |
1831 | aNbItMax = 15; |
4e57c75e |
1832 | // |
df017cc9 |
1833 | do { |
1834 | aP1.SetCoord(aP.X()+aDt*aDB.X(), |
1835 | aP.Y()+aDt*aDB.Y(), |
1836 | aP.Z()+aDt*aDB.Z()); |
1837 | // |
1838 | aProj.Perform(aP1); |
1839 | if (!aProj.IsDone()) { |
1840 | return bRet; |
1841 | } |
1842 | aPOut = aProj.NearestPoint(); |
1843 | aDist = aProj.LowerDistance(); |
1844 | // |
1845 | gp_Vec aV(aP, aPOut); |
1846 | aDB.SetXYZ(aV.XYZ()); |
1847 | } while (aDist>Precision::Angular() && --aNbItMax); |
4e57c75e |
1848 | // |
df017cc9 |
1849 | bRet = aDist < Precision::Angular(); |
1850 | return bRet; |
4e57c75e |
1851 | } |