| 1 | // Created on: 1995-12-12 |
| 2 | // Created by: Jacques GOUSSARD |
| 3 | // Copyright (c) 1995-1999 Matra Datavision |
| 4 | // Copyright (c) 1999-2014 OPEN CASCADE SAS |
| 5 | // |
| 6 | // This file is part of Open CASCADE Technology software library. |
| 7 | // |
| 8 | // This library is free software; you can redistribute it and/or modify it under |
| 9 | // the terms of the GNU Lesser General Public License version 2.1 as published |
| 10 | // by the Free Software Foundation, with special exception defined in the file |
| 11 | // OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT |
| 12 | // distribution for complete text of the license and disclaimer of any warranty. |
| 13 | // |
| 14 | // Alternatively, this file may be used under the terms of Open CASCADE |
| 15 | // commercial license or contractual agreement. |
| 16 | |
| 17 | #include <BRepCheck_Shell.ixx> |
| 18 | |
| 19 | #include <BRepCheck_ListOfStatus.hxx> |
| 20 | #include <BRepCheck_ListIteratorOfListOfStatus.hxx> |
| 21 | |
| 22 | #include <TopTools_MapOfShape.hxx> |
| 23 | #include <TopTools_MapIteratorOfMapOfShape.hxx> |
| 24 | #include <TopTools_ListOfShape.hxx> |
| 25 | #include <TopTools_ListIteratorOfListOfShape.hxx> |
| 26 | #include <TopTools_IndexedDataMapOfShapeListOfShape.hxx> |
| 27 | #include <BRep_Tool.hxx> |
| 28 | #include <BRep_Builder.hxx> |
| 29 | |
| 30 | #include <TopExp_Explorer.hxx> |
| 31 | |
| 32 | #include <BRepCheck.hxx> |
| 33 | #include <TopoDS.hxx> |
| 34 | #include <TopoDS_Edge.hxx> |
| 35 | #include <TopoDS_Face.hxx> |
| 36 | #include <TopExp.hxx> |
| 37 | |
| 38 | #include <TopTools_DataMapIteratorOfDataMapOfShapeInteger.hxx> |
| 39 | #include <TopTools_DataMapOfShapeInteger.hxx> |
| 40 | |
| 41 | |
| 42 | Standard_EXPORT Standard_Integer BRepCheck_Trace(const Standard_Integer phase) { |
| 43 | static int BRC_Trace = 0; |
| 44 | if (phase < 0) BRC_Trace =0; |
| 45 | else if (phase > 0) BRC_Trace=phase; |
| 46 | return BRC_Trace; |
| 47 | } |
| 48 | |
| 49 | void PrintShape(const TopoDS_Shape& theShape, const Standard_Integer upper) { |
| 50 | if (!theShape.IsNull()) { |
| 51 | Standard_Integer code = theShape.HashCode(upper); |
| 52 | |
| 53 | switch (theShape.ShapeType()) { |
| 54 | case TopAbs_COMPOUND : |
| 55 | cout << "COMPOUND"; |
| 56 | break; |
| 57 | case TopAbs_COMPSOLID : |
| 58 | cout << "COMPSOLID"; |
| 59 | break; |
| 60 | case TopAbs_SOLID : |
| 61 | cout << "SOLID"; |
| 62 | break; |
| 63 | case TopAbs_SHELL : |
| 64 | cout << "SHELL"; |
| 65 | break; |
| 66 | case TopAbs_FACE : |
| 67 | cout << "FACE"; |
| 68 | break; |
| 69 | case TopAbs_WIRE : |
| 70 | cout << "WIRE"; |
| 71 | break; |
| 72 | case TopAbs_EDGE : |
| 73 | cout << "EDGE"; |
| 74 | break; |
| 75 | case TopAbs_VERTEX : |
| 76 | cout << "VERTEX"; |
| 77 | break; |
| 78 | case TopAbs_SHAPE : |
| 79 | cout << "SHAPE"; |
| 80 | break; |
| 81 | } |
| 82 | cout << " : " << code << " "; |
| 83 | switch (theShape.Orientation()) { |
| 84 | case TopAbs_FORWARD : |
| 85 | cout << "FORWARD"; |
| 86 | break; |
| 87 | case TopAbs_REVERSED : |
| 88 | cout << "REVERSED"; |
| 89 | break; |
| 90 | case TopAbs_INTERNAL : |
| 91 | cout << "INTERNAL"; |
| 92 | break; |
| 93 | case TopAbs_EXTERNAL : |
| 94 | cout << "EXTERNAL"; |
| 95 | break; |
| 96 | } |
| 97 | cout << endl; |
| 98 | } |
| 99 | } |
| 100 | |
| 101 | static void Propagate(const TopTools_IndexedDataMapOfShapeListOfShape&, |
| 102 | const TopoDS_Shape&, // Face |
| 103 | TopTools_MapOfShape&); // mapofface |
| 104 | |
| 105 | inline Standard_Boolean IsOriented(const TopoDS_Shape& S) |
| 106 | { |
| 107 | return (S.Orientation() == TopAbs_FORWARD || |
| 108 | S.Orientation() == TopAbs_REVERSED); |
| 109 | } |
| 110 | |
| 111 | |
| 112 | //======================================================================= |
| 113 | //function : BRepCheck_Shell |
| 114 | //purpose : |
| 115 | //======================================================================= |
| 116 | |
| 117 | BRepCheck_Shell::BRepCheck_Shell(const TopoDS_Shell& S) |
| 118 | { |
| 119 | Init(S); |
| 120 | } |
| 121 | |
| 122 | |
| 123 | //======================================================================= |
| 124 | //function : Minimum |
| 125 | //purpose : |
| 126 | //======================================================================= |
| 127 | |
| 128 | void BRepCheck_Shell::Minimum() |
| 129 | { |
| 130 | myCdone = Standard_False; |
| 131 | myOdone = Standard_False; |
| 132 | |
| 133 | if (!myMin) { |
| 134 | BRepCheck_ListOfStatus thelist; |
| 135 | myMap.Bind(myShape, thelist); |
| 136 | BRepCheck_ListOfStatus& lst = myMap(myShape); |
| 137 | |
| 138 | // it is checked if the shell is "connected" |
| 139 | TopExp_Explorer exp(myShape,TopAbs_FACE); |
| 140 | Standard_Integer nbface = 0; |
| 141 | myMapEF.Clear(); |
| 142 | for (; exp.More(); exp.Next()) { |
| 143 | nbface++; |
| 144 | TopExp_Explorer expe; |
| 145 | for (expe.Init(exp.Current(),TopAbs_EDGE); |
| 146 | expe.More(); expe.Next()) { |
| 147 | const TopoDS_Shape& edg = expe.Current(); |
| 148 | Standard_Integer index = myMapEF.FindIndex(edg); |
| 149 | if (index == 0) { |
| 150 | TopTools_ListOfShape thelist1; |
| 151 | index = myMapEF.Add(edg, thelist1); |
| 152 | } |
| 153 | myMapEF(index).Append(exp.Current()); |
| 154 | } |
| 155 | } |
| 156 | |
| 157 | if (nbface == 0) { |
| 158 | BRepCheck::Add(lst,BRepCheck_EmptyShell); |
| 159 | } |
| 160 | else if (nbface >= 2) { |
| 161 | TopTools_MapOfShape mapF; |
| 162 | exp.ReInit(); |
| 163 | Propagate(myMapEF,exp.Current(),mapF); |
| 164 | if (mapF.Extent() != nbface) { |
| 165 | BRepCheck::Add(lst,BRepCheck_NotConnected); |
| 166 | } |
| 167 | } |
| 168 | if (lst.IsEmpty()) { |
| 169 | lst.Append(BRepCheck_NoError); |
| 170 | } |
| 171 | myMapEF.Clear(); |
| 172 | myMin = Standard_True; |
| 173 | } |
| 174 | } |
| 175 | |
| 176 | |
| 177 | |
| 178 | //======================================================================= |
| 179 | //function : InContext |
| 180 | //purpose : |
| 181 | //======================================================================= |
| 182 | |
| 183 | void BRepCheck_Shell::InContext(const TopoDS_Shape& S) |
| 184 | { |
| 185 | |
| 186 | if (myMap.IsBound(S)) { |
| 187 | return; |
| 188 | } |
| 189 | BRepCheck_ListOfStatus thelist; |
| 190 | myMap.Bind(S, thelist); |
| 191 | |
| 192 | BRepCheck_ListOfStatus& lst = myMap(S); |
| 193 | |
| 194 | // for (TopExp_Explorer exp(S,TopAbs_SHELL); exp.More(); exp.Next()) { |
| 195 | TopExp_Explorer exp(S,TopAbs_SHELL) ; |
| 196 | for ( ; exp.More(); exp.Next()) { |
| 197 | if (exp.Current().IsSame(myShape)) { |
| 198 | break; |
| 199 | } |
| 200 | } |
| 201 | if (!exp.More()) { |
| 202 | BRepCheck::Add(lst,BRepCheck_SubshapeNotInShape); |
| 203 | return; |
| 204 | } |
| 205 | |
| 206 | TopAbs_ShapeEnum styp = S.ShapeType(); |
| 207 | switch (styp) { |
| 208 | |
| 209 | case TopAbs_SOLID: |
| 210 | { |
| 211 | BRepCheck_Status fst = Closed(); |
| 212 | if ((fst == BRepCheck_NotClosed && S.Closed()) || |
| 213 | (fst != BRepCheck_NoError)) { |
| 214 | BRepCheck::Add(lst,fst); |
| 215 | } |
| 216 | else if (!IsUnorientable()) { |
| 217 | fst = Orientation(); |
| 218 | BRepCheck::Add(lst,fst); |
| 219 | } |
| 220 | } |
| 221 | break; |
| 222 | |
| 223 | default: |
| 224 | break; |
| 225 | } |
| 226 | |
| 227 | |
| 228 | if (lst.IsEmpty()) { |
| 229 | lst.Append(BRepCheck_NoError); |
| 230 | } |
| 231 | } |
| 232 | |
| 233 | |
| 234 | //======================================================================= |
| 235 | //function : Blind |
| 236 | //purpose : |
| 237 | //======================================================================= |
| 238 | |
| 239 | void BRepCheck_Shell::Blind() |
| 240 | { |
| 241 | if (!myBlind) { |
| 242 | // nothing more than in the minimum |
| 243 | myBlind = Standard_True; |
| 244 | } |
| 245 | } |
| 246 | |
| 247 | |
| 248 | //======================================================================= |
| 249 | //function : Closed |
| 250 | //purpose : |
| 251 | //======================================================================= |
| 252 | |
| 253 | BRepCheck_Status BRepCheck_Shell::Closed(const Standard_Boolean Update) |
| 254 | { |
| 255 | |
| 256 | if (myCdone) { |
| 257 | if (Update) { |
| 258 | BRepCheck::Add(myMap(myShape), myCstat); |
| 259 | } |
| 260 | return myCstat; |
| 261 | } |
| 262 | |
| 263 | myCdone = Standard_True; // it will be done... |
| 264 | |
| 265 | BRepCheck_ListIteratorOfListOfStatus itl(myMap(myShape)); |
| 266 | if (itl.Value() != BRepCheck_NoError) { |
| 267 | myCstat = itl.Value(); |
| 268 | return myCstat; // already saved |
| 269 | } |
| 270 | |
| 271 | myCstat = BRepCheck_NoError; |
| 272 | // |
| 273 | Standard_Integer index, aNbF; |
| 274 | TopExp_Explorer exp, ede; |
| 275 | TopTools_MapOfShape mapS, aMEToAvoid; |
| 276 | myMapEF.Clear(); |
| 277 | |
| 278 | |
| 279 | // Checks if the oriented faces of the shell give a "closed" shell, |
| 280 | // i-e if each oriented edge on oriented faces is found 2 times. |
| 281 | // |
| 282 | //modified by NIZNHY-PKV Mon Jun 4 13:59:21 2007f |
| 283 | exp.Init(myShape,TopAbs_FACE); |
| 284 | for (; exp.More(); exp.Next()) { |
| 285 | const TopoDS_Shape& aF=exp.Current(); |
| 286 | if (IsOriented(aF)) { |
| 287 | ede.Init(exp.Current(),TopAbs_EDGE); |
| 288 | for (; ede.More(); ede.Next()) { |
| 289 | const TopoDS_Shape& aE=ede.Current(); |
| 290 | if (!IsOriented(aE)) { |
| 291 | aMEToAvoid.Add(aE); |
| 292 | } |
| 293 | } |
| 294 | } |
| 295 | } |
| 296 | //modified by NIZNHY-PKV Mon Jun 4 13:59:23 2007t |
| 297 | // |
| 298 | exp.Init(myShape,TopAbs_FACE); |
| 299 | for (; exp.More(); exp.Next()) { |
| 300 | const TopoDS_Shape& aF=exp.Current(); |
| 301 | if (IsOriented(aF)) { |
| 302 | if (!mapS.Add(aF)) { |
| 303 | myCstat = BRepCheck_RedundantFace; |
| 304 | if (Update) { |
| 305 | BRepCheck::Add(myMap(myShape),myCstat); |
| 306 | } |
| 307 | return myCstat; |
| 308 | } |
| 309 | // |
| 310 | ede.Init(exp.Current(),TopAbs_EDGE); |
| 311 | for (; ede.More(); ede.Next()) { |
| 312 | const TopoDS_Shape& aE=ede.Current(); |
| 313 | //modified by NIZNHY-PKV Mon Jun 4 14:07:57 2007f |
| 314 | //if (IsOriented(aE)) { |
| 315 | if (!aMEToAvoid.Contains(aE)) { |
| 316 | //modified by NIZNHY-PKV Mon Jun 4 14:08:01 2007 |
| 317 | index = myMapEF.FindIndex(aE); |
| 318 | if (!index) { |
| 319 | TopTools_ListOfShape thelist; |
| 320 | index = myMapEF.Add(aE, thelist); |
| 321 | } |
| 322 | myMapEF(index).Append(aF); |
| 323 | } |
| 324 | } |
| 325 | } |
| 326 | } |
| 327 | // |
| 328 | myNbori = mapS.Extent(); |
| 329 | if (myNbori >= 2) { |
| 330 | mapS.Clear(); |
| 331 | // Search for the first oriented face |
| 332 | TopoDS_Shape aF; |
| 333 | exp.Init(myShape, TopAbs_FACE); |
| 334 | for (;exp.More(); exp.Next()) { |
| 335 | aF=exp.Current(); |
| 336 | if (IsOriented(aF)) { |
| 337 | break; |
| 338 | } |
| 339 | } |
| 340 | // |
| 341 | Propagate(myMapEF, aF, mapS); |
| 342 | } |
| 343 | // |
| 344 | // |
| 345 | aNbF=mapS.Extent(); |
| 346 | if (myNbori != aNbF) { |
| 347 | myCstat = BRepCheck_NotConnected; |
| 348 | if (Update) { |
| 349 | BRepCheck::Add(myMap(myShape),myCstat); |
| 350 | } |
| 351 | return myCstat; |
| 352 | } |
| 353 | // |
| 354 | // |
| 355 | Standard_Integer i, Nbedges, nboc, nbSet; |
| 356 | // |
| 357 | Nbedges = myMapEF.Extent(); |
| 358 | for (i = 1; i<=Nbedges; ++i) { |
| 359 | nboc = myMapEF(i).Extent(); |
| 360 | if (nboc == 0 || nboc >= 3) { |
| 361 | TopTools_ListOfShape theSet; |
| 362 | nbSet=NbConnectedSet(theSet); |
| 363 | // If there is more than one closed cavity the shell is considered invalid |
| 364 | // this corresponds to the criteria of a solid (not those of a shell) |
| 365 | if (nbSet>1) { |
| 366 | myCstat = BRepCheck_InvalidMultiConnexity; |
| 367 | if (Update) { |
| 368 | BRepCheck::Add(myMap(myShape),myCstat); |
| 369 | } |
| 370 | return myCstat; |
| 371 | } |
| 372 | } |
| 373 | else if (nboc == 1) { |
| 374 | if (!BRep_Tool::Degenerated(TopoDS::Edge(myMapEF.FindKey(i)))) { |
| 375 | myCstat=BRepCheck_NotClosed; |
| 376 | if (Update) { |
| 377 | BRepCheck::Add(myMap(myShape),myCstat); |
| 378 | } |
| 379 | return myCstat; |
| 380 | } |
| 381 | } |
| 382 | } |
| 383 | |
| 384 | if (Update) { |
| 385 | BRepCheck::Add(myMap(myShape),myCstat); |
| 386 | } |
| 387 | return myCstat; |
| 388 | } |
| 389 | |
| 390 | |
| 391 | //======================================================================= |
| 392 | //function : Orientation |
| 393 | //purpose : |
| 394 | //======================================================================= |
| 395 | |
| 396 | BRepCheck_Status BRepCheck_Shell::Orientation(const Standard_Boolean Update) |
| 397 | { |
| 398 | if (myOdone) { |
| 399 | if (Update) { |
| 400 | BRepCheck::Add(myMap(myShape), myOstat); |
| 401 | } |
| 402 | return myOstat; |
| 403 | } |
| 404 | myOdone = Standard_True; |
| 405 | |
| 406 | myOstat = Closed(); |
| 407 | if (myOstat != BRepCheck_NotClosed && myOstat != BRepCheck_NoError) { |
| 408 | if (Update) { |
| 409 | BRepCheck::Add(myMap(myShape), myOstat); |
| 410 | } |
| 411 | return myOstat; |
| 412 | } |
| 413 | |
| 414 | myOstat = BRepCheck_NoError; |
| 415 | |
| 416 | |
| 417 | // First the orientation of each face in relation to the shell is found. |
| 418 | // It is used to check BRepCheck_RedundantFace |
| 419 | |
| 420 | TopTools_DataMapOfShapeInteger MapOfShapeOrientation; |
| 421 | TopExp_Explorer exp,ede; |
| 422 | |
| 423 | for (exp.Init(myShape,TopAbs_FACE); exp.More(); exp.Next()) { |
| 424 | if (!MapOfShapeOrientation.Bind(exp.Current(), (Standard_Integer)(exp.Current().Orientation()))) { |
| 425 | myOstat = BRepCheck_RedundantFace; |
| 426 | if (Update) { |
| 427 | BRepCheck::Add(myMap(myShape), myOstat); |
| 428 | } |
| 429 | else { |
| 430 | return myOstat; |
| 431 | } |
| 432 | } |
| 433 | } |
| 434 | |
| 435 | #ifdef DEB |
| 436 | if (BRepCheck_Trace(0) > 1) { |
| 437 | TopTools_DataMapIteratorOfDataMapOfShapeInteger itt(MapOfShapeOrientation); |
| 438 | Standard_Integer upper = MapOfShapeOrientation.NbBuckets(); |
| 439 | cout << "La map shape Orientation :" << endl; |
| 440 | for (; itt.More(); itt.Next()) { |
| 441 | PrintShape(itt.Key(), upper); |
| 442 | } |
| 443 | cout << endl; |
| 444 | } |
| 445 | #endif |
| 446 | |
| 447 | |
| 448 | // Then the orientation of faces by their connectivity is checked |
| 449 | // BRepCheck_BadOrientationOfSubshape and |
| 450 | // BRepCheck_SubshapeNotInShape are checked; |
| 451 | |
| 452 | Standard_Integer Nbedges = myMapEF.Extent(); |
| 453 | TopoDS_Face Fref; |
| 454 | TopAbs_Orientation orf; |
| 455 | |
| 456 | for (Standard_Integer i = 1; i<= Nbedges; i++) { |
| 457 | |
| 458 | const TopoDS_Edge& edg = TopoDS::Edge(myMapEF.FindKey(i)); |
| 459 | if (BRep_Tool::Degenerated(edg)) continue; |
| 460 | TopTools_ListOfShape& lface = myMapEF(i); |
| 461 | TopTools_ListIteratorOfListOfShape lite(lface); |
| 462 | |
| 463 | if (lface.Extent() <= 2) |
| 464 | { |
| 465 | lite.Initialize(lface); |
| 466 | Fref = TopoDS::Face(lite.Value()); |
| 467 | |
| 468 | if (!MapOfShapeOrientation.IsBound(Fref)) { |
| 469 | myOstat = BRepCheck_SubshapeNotInShape; |
| 470 | if (Update) { |
| 471 | BRepCheck::Add(myMap(myShape), myOstat); |
| 472 | } |
| 473 | // quit because no workaround for the incoherence is possible |
| 474 | return myOstat; |
| 475 | } |
| 476 | lite.Next(); |
| 477 | |
| 478 | if (lite.More()) { // Edge of connectivity |
| 479 | //JR/Hp : |
| 480 | Standard_Integer iorf = MapOfShapeOrientation.Find(Fref); |
| 481 | orf = (TopAbs_Orientation) iorf; |
| 482 | //orf = (TopAbs_Orientation)MapOfShapeOrientation.Find(Fref); |
| 483 | Fref.Orientation(orf); |
| 484 | |
| 485 | // edge is examined |
| 486 | if (!lite.Value().IsSame(Fref)) { // edge non "closed" |
| 487 | for (ede.Init(Fref,TopAbs_EDGE); ede.More(); ede.Next()) { |
| 488 | if (ede.Current().IsSame(edg)) { |
| 489 | break; |
| 490 | } |
| 491 | } |
| 492 | TopAbs_Orientation orient = ede.Current().Orientation(); |
| 493 | TopoDS_Face Fcur= TopoDS::Face(lite.Value()); |
| 494 | |
| 495 | if (!MapOfShapeOrientation.IsBound(Fcur)) { |
| 496 | myOstat = BRepCheck_SubshapeNotInShape; |
| 497 | if (Update) { |
| 498 | BRepCheck::Add(myMap(myShape), myOstat); |
| 499 | } |
| 500 | // quit because no workaround for the incoherence is possible |
| 501 | return myOstat; |
| 502 | } |
| 503 | |
| 504 | //JR/Hp : |
| 505 | Standard_Integer iorf = MapOfShapeOrientation.Find(Fcur) ; |
| 506 | orf = (TopAbs_Orientation) iorf ; |
| 507 | // orf = (TopAbs_Orientation)MapOfShapeOrientation.Find(Fcur); |
| 508 | Fcur.Orientation(orf); |
| 509 | |
| 510 | for (ede.Init(Fcur, TopAbs_EDGE); ede.More(); ede.Next()) { |
| 511 | if (ede.Current().IsSame(edg)) { |
| 512 | break; |
| 513 | } |
| 514 | } |
| 515 | if (ede.Current().Orientation() == orient) { |
| 516 | // The loop is continued on the edges as many times |
| 517 | // as the same edge is present in the wire |
| 518 | |
| 519 | // modified by NIZHNY-MKK Tue Sep 30 11:11:42 2003 |
| 520 | Standard_Boolean bfound = Standard_False; |
| 521 | ede.Next(); |
| 522 | for (; ede.More(); ede.Next()) { |
| 523 | if (ede.Current().IsSame(edg)) { |
| 524 | // modified by NIZHNY-MKK Tue Sep 30 11:12:03 2003 |
| 525 | bfound = Standard_True; |
| 526 | break; |
| 527 | } |
| 528 | } |
| 529 | // if (ede.Current().Orientation() == orient) { |
| 530 | // modified by NIZHNY-MKK Thu Oct 2 17:56:47 2003 |
| 531 | if (!bfound || (ede.Current().Orientation() == orient)) { |
| 532 | myOstat = BRepCheck_BadOrientationOfSubshape; |
| 533 | if (Update) { |
| 534 | BRepCheck::Add(myMap(myShape), myOstat); |
| 535 | break; |
| 536 | } |
| 537 | return myOstat; |
| 538 | } |
| 539 | } |
| 540 | } |
| 541 | } |
| 542 | } |
| 543 | else //more than two faces |
| 544 | { |
| 545 | Standard_Integer numF = 0, numR = 0; |
| 546 | TopTools_MapOfShape Fmap; |
| 547 | |
| 548 | for (lite.Initialize(lface); lite.More(); lite.Next()) |
| 549 | { |
| 550 | TopoDS_Face Fcur= TopoDS::Face(lite.Value()); |
| 551 | if (!MapOfShapeOrientation.IsBound(Fcur)) |
| 552 | { |
| 553 | myOstat = BRepCheck_SubshapeNotInShape; |
| 554 | if (Update) |
| 555 | BRepCheck::Add(myMap(myShape), myOstat); |
| 556 | // quit because no workaround for the incoherence is possible |
| 557 | return myOstat; |
| 558 | } |
| 559 | |
| 560 | Standard_Integer iorf = MapOfShapeOrientation.Find(Fcur); |
| 561 | orf = (TopAbs_Orientation) iorf; |
| 562 | //orf = (TopAbs_Orientation)MapOfShapeOrientation.Find(Fcur); |
| 563 | Fcur.Orientation(orf); |
| 564 | |
| 565 | for (ede.Init(Fcur,TopAbs_EDGE); ede.More(); ede.Next()) |
| 566 | if (ede.Current().IsSame(edg)) |
| 567 | break; |
| 568 | if (Fmap.Contains(Fcur)) //edge is "closed" on Fcur, we meet Fcur twice |
| 569 | { |
| 570 | ede.Next(); |
| 571 | for (; ede.More(); ede.Next()) |
| 572 | if (ede.Current().IsSame(edg)) |
| 573 | break; |
| 574 | } |
| 575 | TopAbs_Orientation orient = ede.Current().Orientation(); |
| 576 | if (orient == TopAbs_FORWARD) |
| 577 | numF++; |
| 578 | else |
| 579 | numR++; |
| 580 | |
| 581 | Fmap.Add(Fcur); |
| 582 | } |
| 583 | |
| 584 | if (numF != numR) |
| 585 | { |
| 586 | myOstat = BRepCheck_BadOrientationOfSubshape; |
| 587 | if (Update) |
| 588 | { |
| 589 | BRepCheck::Add(myMap(myShape), myOstat); |
| 590 | break; |
| 591 | } |
| 592 | return myOstat; |
| 593 | } |
| 594 | } |
| 595 | } |
| 596 | |
| 597 | // If at least one incorrectly oriented face has been found, it is checked if the shell can be oriented. |
| 598 | // i.e. : if by modification of the orientation of a face it is possible to find |
| 599 | // a coherent orientation. (it is not possible on a Moebius band) |
| 600 | // BRepCheck_UnorientableShape is checked |
| 601 | |
| 602 | if (myOstat == BRepCheck_BadOrientationOfSubshape) { |
| 603 | if (!Fref.IsNull()) { |
| 604 | if (Nbedges > 0) { |
| 605 | TopTools_MapOfShape alre; |
| 606 | TopTools_ListOfShape voisin; |
| 607 | voisin.Append(Fref); |
| 608 | alre.Clear(); |
| 609 | while (!voisin.IsEmpty()) { |
| 610 | Fref=TopoDS::Face(voisin.First()); |
| 611 | voisin.RemoveFirst(); |
| 612 | if (!MapOfShapeOrientation.IsBound(Fref)) { |
| 613 | myOstat = BRepCheck_SubshapeNotInShape; |
| 614 | if (Update) { |
| 615 | BRepCheck::Add(myMap(myShape), myOstat); |
| 616 | } |
| 617 | // quit because no workaround for the incoherence is possible |
| 618 | return myOstat; |
| 619 | } |
| 620 | //JR/Hp : |
| 621 | Standard_Integer iorf = MapOfShapeOrientation.Find(Fref) ; |
| 622 | orf = (TopAbs_Orientation) iorf ; |
| 623 | // orf = (TopAbs_Orientation)MapOfShapeOrientation.Find(Fref); |
| 624 | Fref.Orientation(orf); |
| 625 | |
| 626 | #ifdef DEB |
| 627 | if (BRepCheck_Trace(0) > 3) { |
| 628 | cout << "Fref : " ; |
| 629 | PrintShape(Fref, MapOfShapeOrientation.NbBuckets()); |
| 630 | } |
| 631 | #endif |
| 632 | |
| 633 | TopExp_Explorer edFcur; |
| 634 | alre.Add(Fref); |
| 635 | |
| 636 | for (ede.Init(Fref,TopAbs_EDGE); ede.More(); ede.Next()) { |
| 637 | const TopoDS_Edge& edg = TopoDS::Edge(ede.Current()); |
| 638 | TopAbs_Orientation orient = edg.Orientation(); |
| 639 | TopTools_ListOfShape& lface = myMapEF.ChangeFromKey(edg); |
| 640 | TopTools_ListIteratorOfListOfShape lite(lface); |
| 641 | |
| 642 | TopoDS_Face Fcur= TopoDS::Face(lite.Value()); |
| 643 | if (Fcur.IsSame(Fref)) { |
| 644 | lite.Next(); |
| 645 | if (lite.More()) { |
| 646 | Fcur=TopoDS::Face(lite.Value()); |
| 647 | } |
| 648 | else { |
| 649 | // from the free border one goes to the next edge |
| 650 | continue; |
| 651 | } |
| 652 | } |
| 653 | |
| 654 | if (!MapOfShapeOrientation.IsBound(Fcur)) { |
| 655 | myOstat = BRepCheck_SubshapeNotInShape; |
| 656 | if (Update) { |
| 657 | BRepCheck::Add(myMap(myShape), myOstat); |
| 658 | } |
| 659 | // quit because no workaround for the incoherence is possible |
| 660 | return myOstat; |
| 661 | } |
| 662 | |
| 663 | //JR/Hp : |
| 664 | Standard_Integer iorf = MapOfShapeOrientation.Find(Fcur) ; |
| 665 | orf = (TopAbs_Orientation) iorf ; |
| 666 | // orf = (TopAbs_Orientation)MapOfShapeOrientation.Find(Fcur); |
| 667 | Fcur.Orientation(orf); |
| 668 | |
| 669 | #ifdef DEB |
| 670 | if (BRepCheck_Trace(0) > 3) { |
| 671 | cout << " Fcur : " ; |
| 672 | PrintShape(Fcur, MapOfShapeOrientation.NbBuckets()); |
| 673 | } |
| 674 | #endif |
| 675 | for (edFcur.Init(Fcur, TopAbs_EDGE); edFcur.More(); edFcur.Next()) { |
| 676 | if (edFcur.Current().IsSame(edg)) { |
| 677 | break; |
| 678 | } |
| 679 | } |
| 680 | if (edFcur.Current().Orientation() == orient) { |
| 681 | if (alre.Contains(Fcur)) { |
| 682 | // It is necessary to return a face that has been already examined or returned |
| 683 | // if one gets nowhere, the shell cannot be oriented. |
| 684 | myOstat = BRepCheck_UnorientableShape; |
| 685 | if (Update) { |
| 686 | BRepCheck::Add(myMap(myShape), myOstat); |
| 687 | } |
| 688 | // quit, otherwise there is a risk of taking too much time. |
| 689 | #ifdef DEB |
| 690 | if (BRepCheck_Trace(0) > 3) { |
| 691 | orf = (TopAbs_Orientation)MapOfShapeOrientation.Find(Fcur); |
| 692 | Fcur.Orientation(orf); |
| 693 | cout << " Error : this face has been already examined " << endl; |
| 694 | cout << " Imposible to return it "; |
| 695 | PrintShape(Fcur, MapOfShapeOrientation.NbBuckets()); |
| 696 | } |
| 697 | #endif |
| 698 | return myOstat; |
| 699 | } |
| 700 | orf = TopAbs::Reverse(orf); |
| 701 | MapOfShapeOrientation(Fcur)=orf; |
| 702 | |
| 703 | |
| 704 | #ifdef DEB |
| 705 | if (BRepCheck_Trace(0) > 3) { |
| 706 | orf = (TopAbs_Orientation)MapOfShapeOrientation.Find(Fcur); |
| 707 | Fcur.Orientation(orf); |
| 708 | cout << " Resulting Fcur is returned : " ; |
| 709 | PrintShape(Fcur, MapOfShapeOrientation.NbBuckets()); |
| 710 | } |
| 711 | #endif |
| 712 | |
| 713 | } |
| 714 | if (alre.Add(Fcur)) { |
| 715 | voisin.Append(Fcur); |
| 716 | } |
| 717 | } |
| 718 | } |
| 719 | } |
| 720 | } |
| 721 | } |
| 722 | |
| 723 | if (Update) { |
| 724 | BRepCheck::Add(myMap(myShape), myOstat); |
| 725 | } |
| 726 | return myOstat; |
| 727 | } |
| 728 | |
| 729 | //======================================================================= |
| 730 | //function : SetUnorientable |
| 731 | //purpose : |
| 732 | //======================================================================= |
| 733 | |
| 734 | void BRepCheck_Shell::SetUnorientable() |
| 735 | { |
| 736 | BRepCheck::Add(myMap(myShape),BRepCheck_UnorientableShape); |
| 737 | } |
| 738 | |
| 739 | |
| 740 | //======================================================================= |
| 741 | //function : IsUnorientable |
| 742 | //purpose : |
| 743 | //======================================================================= |
| 744 | |
| 745 | Standard_Boolean BRepCheck_Shell::IsUnorientable() const |
| 746 | { |
| 747 | if (myOdone) { |
| 748 | return (myOstat != BRepCheck_NoError); |
| 749 | } |
| 750 | for (BRepCheck_ListIteratorOfListOfStatus itl(myMap(myShape)); |
| 751 | itl.More(); |
| 752 | itl.Next()) { |
| 753 | if (itl.Value() == BRepCheck_UnorientableShape) { |
| 754 | return Standard_True; |
| 755 | } |
| 756 | } |
| 757 | return Standard_False; |
| 758 | } |
| 759 | |
| 760 | //======================================================================= |
| 761 | //function : NbConnectedSet |
| 762 | //purpose : |
| 763 | //======================================================================= |
| 764 | |
| 765 | Standard_Integer BRepCheck_Shell::NbConnectedSet(TopTools_ListOfShape& theSets) |
| 766 | { |
| 767 | // The connections are found |
| 768 | TopTools_IndexedDataMapOfShapeListOfShape parents; |
| 769 | TopExp::MapShapesAndAncestors(myShape, TopAbs_EDGE, TopAbs_FACE, parents); |
| 770 | // All faces are taken |
| 771 | TopTools_MapOfShape theFaces; |
| 772 | TopExp_Explorer exsh(myShape, TopAbs_FACE); |
| 773 | for (; exsh.More(); exsh.Next()) theFaces.Add(exsh.Current()); |
| 774 | // The edges that are not oriented or have more than 2 connections are missing |
| 775 | Standard_Integer iCur; |
| 776 | TopTools_MapOfShape theMultiEd; |
| 777 | TopTools_MapOfShape theUnOriEd; |
| 778 | for (iCur=1; iCur<=parents.Extent(); iCur++) { |
| 779 | const TopoDS_Edge& Ed = TopoDS::Edge(parents.FindKey(iCur)); |
| 780 | if (parents(iCur).Extent()> 2) theMultiEd.Add(Ed); |
| 781 | if (Ed.Orientation()!=TopAbs_REVERSED && |
| 782 | Ed.Orientation()!=TopAbs_FORWARD) theUnOriEd.Add(Ed); |
| 783 | } |
| 784 | // Starting from multiconnected edges propagation by simple connections |
| 785 | TopTools_ListIteratorOfListOfShape lconx1, lconx2; |
| 786 | TopTools_MapIteratorOfMapOfShape itmsh(theMultiEd); |
| 787 | TopoDS_Shell CurShell; |
| 788 | TopoDS_Shape adFac; |
| 789 | TopTools_ListOfShape lesCur; |
| 790 | BRep_Builder BRB; |
| 791 | Standard_Boolean newCur=Standard_True; |
| 792 | BRB.MakeShell(CurShell); |
| 793 | for (; itmsh.More(); itmsh.Next()) { |
| 794 | const TopoDS_Shape& Ed = itmsh.Key(); |
| 795 | if (!theUnOriEd.Contains(Ed)) { |
| 796 | for (lconx1.Initialize(parents.FindFromKey(Ed)); lconx1.More(); lconx1.Next()) { |
| 797 | if (theFaces.Contains(lconx1.Value())) { |
| 798 | adFac=lconx1.Value(); |
| 799 | BRB.Add(CurShell, adFac); |
| 800 | theFaces.Remove(adFac); |
| 801 | newCur=Standard_False; |
| 802 | if (theFaces.IsEmpty()) break; |
| 803 | lesCur.Append(adFac); |
| 804 | while (!lesCur.IsEmpty()) { |
| 805 | adFac=lesCur.First(); |
| 806 | lesCur.RemoveFirst(); |
| 807 | for (exsh.Init(adFac, TopAbs_EDGE); exsh.More(); exsh.Next()) { |
| 808 | const TopoDS_Shape& ced = exsh.Current(); |
| 809 | if (!theMultiEd.Contains(ced)) { |
| 810 | for (lconx2.Initialize(parents.FindFromKey(ced)); lconx2.More(); lconx2.Next()) { |
| 811 | if (theFaces.Contains(lconx2.Value())) { |
| 812 | adFac=lconx2.Value(); |
| 813 | BRB.Add(CurShell, adFac); |
| 814 | theFaces.Remove(adFac); |
| 815 | newCur=Standard_False; |
| 816 | if (theFaces.IsEmpty()) break; |
| 817 | lesCur.Append(adFac); |
| 818 | } |
| 819 | } |
| 820 | } |
| 821 | if (theFaces.IsEmpty()) break; |
| 822 | } |
| 823 | } |
| 824 | if (!newCur) { |
| 825 | theSets.Append(CurShell); |
| 826 | CurShell.Nullify(); |
| 827 | newCur=Standard_True; |
| 828 | BRB.MakeShell(CurShell); |
| 829 | } |
| 830 | } |
| 831 | if (theFaces.IsEmpty()) break; |
| 832 | } |
| 833 | } |
| 834 | if (theFaces.IsEmpty()) break; |
| 835 | } |
| 836 | return theSets.Extent(); |
| 837 | } |
| 838 | |
| 839 | //======================================================================= |
| 840 | //function : Propagate |
| 841 | //purpose : |
| 842 | //======================================================================= |
| 843 | |
| 844 | static void Propagate(const TopTools_IndexedDataMapOfShapeListOfShape& mapEF, |
| 845 | const TopoDS_Shape& fac, |
| 846 | TopTools_MapOfShape& mapF) |
| 847 | { |
| 848 | if (mapF.Contains(fac)) { |
| 849 | return; |
| 850 | } |
| 851 | mapF.Add(fac); // attention, if oriented == Standard_True, fac should |
| 852 | // be FORWARD or REVERSED. It is not checked. |
| 853 | |
| 854 | TopExp_Explorer ex; |
| 855 | for (ex.Init(fac,TopAbs_EDGE); ex.More(); ex.Next()) { |
| 856 | const TopoDS_Edge& edg = TopoDS::Edge(ex.Current()); |
| 857 | // test if the edge is in the map (only orienteed edges are present) |
| 858 | if (mapEF.Contains(edg)) { |
| 859 | for (TopTools_ListIteratorOfListOfShape itl(mapEF.FindFromKey(edg)); |
| 860 | itl.More(); itl.Next()) { |
| 861 | if (!itl.Value().IsSame(fac) && |
| 862 | !mapF.Contains(itl.Value())) { |
| 863 | Propagate(mapEF,itl.Value(),mapF); |
| 864 | } |
| 865 | } |
| 866 | } |
| 867 | } |
| 868 | } |