src/GeomAlgoAPI/GeomAlgoAPI_ShapeTools.cpp

   1 // Copyright (C) 2014-20xx CEA/DEN, EDF R&D
   2
   3 // File:        GeomAlgoAPI_ShapeTools.h
   4 // Created:     3 August 2015
   5 // Author:      Dmitry Bobylev
   6
   7 #include "GeomAlgoAPI_ShapeTools.h"
   8
   9 #include "GeomAlgoAPI_SketchBuilder.h"
  10
  11 #include <GeomAPI_Edge.h>
  12 #include <GeomAPI_Dir.h>
  13 #include <GeomAPI_Face.h>
  14 #include <GeomAPI_Pln.h>
  15 #include <GeomAPI_Pnt.h>
  16
  17 #include <Bnd_Box.hxx>
  18 #include <BOPTools.hxx>
  19 #include <BRep_Builder.hxx>
  20 #include <BRepAdaptor_Curve.hxx>
  21 #include <BRepAlgo_FaceRestrictor.hxx>
  22 #include <BRepBndLib.hxx>
  23 #include <BRepBuilderAPI_FindPlane.hxx>
  24 #include <BRepBuilderAPI_MakeEdge.hxx>
  25 #include <BRepBuilderAPI_MakeFace.hxx>
  26 #include <BRepCheck_Analyzer.hxx>
  27 #include <BRepExtrema_DistShapeShape.hxx>
  28 #include <BRepExtrema_ExtCF.hxx>
  29 #include <BRepGProp.hxx>
  30 #include <BRepTools.hxx>
  31 #include <BRepTopAdaptor_FClass2d.hxx>
  32 #include <Geom2d_Curve.hxx>
  33 #include <Handle_Geom2d_Curve.hxx>
  34 #include <BRepLib_CheckCurveOnSurface.hxx>
  35 #include <BRep_Tool.hxx>
  36 #include <Geom_Plane.hxx>
  37 #include <GeomLib_IsPlanarSurface.hxx>
  38 #include <GeomLib_Tool.hxx>
  39 #include <gp_Pln.hxx>
  40 #include <GProp_GProps.hxx>
  41 #include <IntAna_IntConicQuad.hxx>
  42 #include <IntAna_Quadric.hxx>
  43 #include <NCollection_Vector.hxx>
  44 #include <ShapeAnalysis.hxx>
  45 #include <ShapeAnalysis_Surface.hxx>
  46 #include <TopoDS_Builder.hxx>
  47 #include <TopoDS_Edge.hxx>
  48 #include <TopoDS_Face.hxx>
  49 #include <TopoDS_Shape.hxx>
  50 #include <TopoDS_Shell.hxx>
  51 #include <TopoDS_Vertex.hxx>
  52 #include <TopoDS.hxx>
  53 #include <TopExp_Explorer.hxx>
  54 #include <TopTools_ListIteratorOfListOfShape.hxx>
  55
  56 #include <BOPAlgo_Builder.hxx>
  57 #include <BRepBuilderAPI_MakeVertex.hxx>
  58 #include <TopoDS_Edge.hxx>
  59
  60 //==================================================================================================
  61 double GeomAlgoAPI_ShapeTools::volume(const std::shared_ptr<GeomAPI_Shape> theShape)
  62 {
  63   GProp_GProps aGProps;
  64   if(!theShape.get()) {
  65     return 0.0;
  66   }
  67   const TopoDS_Shape& aShape = theShape->impl<TopoDS_Shape>();
  68   if(aShape.IsNull()) {
  69     return 0.0;
  70   }
  71   const Standard_Real anEps = 1.e-6;
  72   BRepGProp::VolumeProperties(aShape, aGProps, anEps);
  73   return aGProps.Mass();
  74 }
  75
  76 //==================================================================================================
  77 std::shared_ptr<GeomAPI_Pnt>
  78   GeomAlgoAPI_ShapeTools::centreOfMass(const std::shared_ptr<GeomAPI_Shape> theShape)
  79 {
  80   GProp_GProps aGProps;
  81   if(!theShape) {
  82     return std::shared_ptr<GeomAPI_Pnt>();
  83   }
  84   const TopoDS_Shape& aShape = theShape->impl<TopoDS_Shape>();
  85   if(aShape.IsNull()) {
  86     return std::shared_ptr<GeomAPI_Pnt>();
  87   }
  88   gp_Pnt aCentre;
  89   if(aShape.ShapeType() == TopAbs_VERTEX) {
  90     aCentre = BRep_Tool::Pnt(TopoDS::Vertex(aShape));
  91   } else if(aShape.ShapeType() == TopAbs_EDGE || aShape.ShapeType() == TopAbs_WIRE) {
  92     BRepGProp::LinearProperties(aShape, aGProps);
  93     aCentre = aGProps.CentreOfMass();
  94   } else {
  95     BRepGProp::SurfaceProperties(aShape, aGProps);
  96     aCentre = aGProps.CentreOfMass();
  97   }
  98   return std::shared_ptr<GeomAPI_Pnt>(new GeomAPI_Pnt(aCentre.X(), aCentre.Y(), aCentre.Z()));
  99 }
 100
 101 //==================================================================================================
 102 std::shared_ptr<GeomAPI_Shape> GeomAlgoAPI_ShapeTools::combineShapes(
 103   const std::shared_ptr<GeomAPI_Shape> theCompound,
 104   const GeomAPI_Shape::ShapeType theType,
 105   ListOfShape& theCombinedShapes,
 106   ListOfShape& theFreeShapes)
 107 {
 108   GeomShapePtr aResult = theCompound;
 109
 110   if(!theCompound.get()) {
 111     return aResult;
 112   }
 113
 114   if(theType != GeomAPI_Shape::SHELL && theType != GeomAPI_Shape::COMPSOLID) {
 115     return aResult;
 116   }
 117
 118   TopAbs_ShapeEnum aTS = TopAbs_EDGE;
 119   TopAbs_ShapeEnum aTA = TopAbs_FACE;
 120   if(theType == GeomAPI_Shape::COMPSOLID) {
 121     aTS = TopAbs_FACE;
 122     aTA = TopAbs_SOLID;
 123   }
 124
 125   theCombinedShapes.clear();
 126   theFreeShapes.clear();
 127
 128   // Get free shapes.
 129   const TopoDS_Shape& aShapesComp = theCompound->impl<TopoDS_Shape>();
 130   for(TopoDS_Iterator anIter(aShapesComp); anIter.More(); anIter.Next() ) {
 131     const TopoDS_Shape& aShape = anIter.Value();
 132     if(aShape.ShapeType() > aTA) {
 133       std::shared_ptr<GeomAPI_Shape> aGeomShape(new GeomAPI_Shape);
 134       aGeomShape->setImpl<TopoDS_Shape>(new TopoDS_Shape(aShape));
 135       theFreeShapes.push_back(aGeomShape);
 136     }
 137   }
 138
 139   // Map subshapes and shapes.
 140   BOPCol_IndexedDataMapOfShapeListOfShape aMapSA;
 141   BOPTools::MapShapesAndAncestors(aShapesComp, aTS, aTA, aMapSA);
 142   if(aMapSA.IsEmpty()) {
 143     return aResult;
 144   }
 145
 146   // Get all shapes with common subshapes and free shapes.
 147   NCollection_Map<TopoDS_Shape> aFreeShapes;
 148   NCollection_Vector<NCollection_Map<TopoDS_Shape>> aShapesWithCommonSubshapes;
 149   for(BOPCol_IndexedDataMapOfShapeListOfShape::Iterator
 150       anIter(aMapSA); anIter.More(); anIter.Next()) {
 151     const TopoDS_Shape& aShape = anIter.Key();
 152     BOPCol_ListOfShape& aListOfShape = anIter.ChangeValue();
 153     if(aListOfShape.IsEmpty()) {
 154       continue;
 155     }
 156     else if(aListOfShape.Size() == 1) {
 157       const TopoDS_Shape& aF = aListOfShape.First();
 158       aFreeShapes.Add(aF);
 159       aListOfShape.Clear();
 160     } else {
 161       NCollection_List<TopoDS_Shape> aTempList;
 162       NCollection_Map<TopoDS_Shape> aTempMap;
 163       const TopoDS_Shape& aF = aListOfShape.First();
 164       const TopoDS_Shape& aL = aListOfShape.Last();
 165       aTempList.Append(aF);
 166       aTempList.Append(aL);
 167       aTempMap.Add(aF);
 168       aTempMap.Add(aL);
 169       aFreeShapes.Remove(aF);
 170       aFreeShapes.Remove(aL);
 171       aListOfShape.Clear();
 172       for(NCollection_List<TopoDS_Shape>::Iterator
 173           aTempIter(aTempList); aTempIter.More(); aTempIter.Next()) {
 174         const TopoDS_Shape& aTempShape = aTempIter.Value();
 175         for(BOPCol_IndexedDataMapOfShapeListOfShape::Iterator
 176             anIter(aMapSA); anIter.More(); anIter.Next()) {
 177           BOPCol_ListOfShape& aTempListOfShape = anIter.ChangeValue();
 178           if(aTempListOfShape.IsEmpty()) {
 179             continue;
 180           } else if(aTempListOfShape.Size() == 1 && aTempListOfShape.First() == aTempShape) {
 181             aTempListOfShape.Clear();
 182           } else if(aTempListOfShape.Size() > 1) {
 183             if(aTempListOfShape.First() == aTempShape) {
 184               const TopoDS_Shape& aTL = aTempListOfShape.Last();
 185               if(aTempMap.Add(aTL)) {
 186                 aTempList.Append(aTL);
 187                 aFreeShapes.Remove(aTL);
 188               }
 189               aTempListOfShape.Clear();
 190             } else if(aTempListOfShape.Last() == aTempShape) {
 191               const TopoDS_Shape& aTF = aTempListOfShape.First();
 192               if(aTempMap.Add(aTF)) {
 193                 aTempList.Append(aTF);
 194                 aFreeShapes.Remove(aTF);
 195               }
 196               aTempListOfShape.Clear();
 197             }
 198           }
 199         }
 200       }
 201       aShapesWithCommonSubshapes.Append(aTempMap);
 202     }
 203   }
 204
 205   // Combine shapes with common subshapes.
 206   for(NCollection_Vector<NCollection_Map<TopoDS_Shape>>::Iterator
 207       anIter(aShapesWithCommonSubshapes); anIter.More(); anIter.Next()) {
 208     TopoDS_Shell aShell;
 209     TopoDS_CompSolid aCSolid;
 210     TopoDS_Builder aBuilder;
 211     theType ==
 212       GeomAPI_Shape::COMPSOLID ? aBuilder.MakeCompSolid(aCSolid) : aBuilder.MakeShell(aShell);
 213     NCollection_Map<TopoDS_Shape>& aShapesMap = anIter.ChangeValue();
 214     for(TopExp_Explorer anExp(aShapesComp, aTA); anExp.More(); anExp.Next()) {
 215       const TopoDS_Shape& aShape = anExp.Current();
 216       if(aShapesMap.Contains(aShape)) {
 217         theType ==
 218           GeomAPI_Shape::COMPSOLID ? aBuilder.Add(aCSolid, aShape) : aBuilder.Add(aShell, aShape);
 219         aShapesMap.Remove(aShape);
 220       }
 221     }
 222     std::shared_ptr<GeomAPI_Shape> aGeomShape(new GeomAPI_Shape);
 223     TopoDS_Shape* aSh = theType == GeomAPI_Shape::COMPSOLID ? new TopoDS_Shape(aCSolid) :
 224                                                               new TopoDS_Shape(aShell);
 225     aGeomShape->setImpl<TopoDS_Shape>(aSh);
 226     theCombinedShapes.push_back(aGeomShape);
 227   }
 228
 229   // Adding free shapes.
 230   for(TopExp_Explorer anExp(aShapesComp, aTA); anExp.More(); anExp.Next()) {
 231     const TopoDS_Shape& aShape = anExp.Current();
 232     if(aFreeShapes.Contains(aShape)) {
 233       std::shared_ptr<GeomAPI_Shape> aGeomShape(new GeomAPI_Shape);
 234       aGeomShape->setImpl<TopoDS_Shape>(new TopoDS_Shape(aShape));
 235       theFreeShapes.push_back(aGeomShape);
 236     }
 237   }
 238
 239   if(theCombinedShapes.size() == 1 && theFreeShapes.size() == 0) {
 240     aResult = theCombinedShapes.front();
 241   } else if(theCombinedShapes.size() == 0 && theFreeShapes.size() == 1) {
 242     aResult = theFreeShapes.front();
 243   } else {
 244     TopoDS_Compound aResultComp;
 245     TopoDS_Builder aBuilder;
 246     aBuilder.MakeCompound(aResultComp);
 247     for(ListOfShape::const_iterator anIter = theCombinedShapes.cbegin();
 248         anIter != theCombinedShapes.cend(); anIter++) {
 249       aBuilder.Add(aResultComp, (*anIter)->impl<TopoDS_Shape>());
 250     }
 251     for(ListOfShape::const_iterator anIter = theFreeShapes.cbegin();
 252         anIter != theFreeShapes.cend(); anIter++) {
 253       aBuilder.Add(aResultComp, (*anIter)->impl<TopoDS_Shape>());
 254     }
 255     aResult->setImpl(new TopoDS_Shape(aResultComp));
 256   }
 257
 258   return aResult;
 259 }
 260
 261 //==================================================================================================
 262 static void addSimpleShapeToList(const TopoDS_Shape& theShape,
 263                                  NCollection_List<TopoDS_Shape>& theList)
 264 {
 265   if(theShape.IsNull()) {
 266     return;
 267   }
 268
 269   if(theShape.ShapeType() == TopAbs_COMPOUND) {
 270     for(TopoDS_Iterator anIt(theShape); anIt.More(); anIt.Next()) {
 271       addSimpleShapeToList(anIt.Value(), theList);
 272     }
 273   } else {
 274     theList.Append(theShape);
 275   }
 276 }
 277
 278 //==================================================================================================
 279 static TopoDS_Compound makeCompound(const NCollection_List<TopoDS_Shape> theShapes)
 280 {
 281   TopoDS_Compound aCompound;
 282
 283   BRep_Builder aBuilder;
 284   aBuilder.MakeCompound(aCompound);
 285
 286   for(NCollection_List<TopoDS_Shape>::Iterator anIt(theShapes); anIt.More(); anIt.Next()) {
 287     aBuilder.Add(aCompound, anIt.Value());
 288   }
 289
 290   return aCompound;
 291 }
 292
 293 //==================================================================================================
 294 std::shared_ptr<GeomAPI_Shape> GeomAlgoAPI_ShapeTools::groupSharedTopology(
 295   const std::shared_ptr<GeomAPI_Shape> theCompound)
 296 {
 297   GeomShapePtr aResult = theCompound;
 298
 299   if(!theCompound.get()) {
 300     return aResult;
 301   }
 302
 303   TopoDS_Shape anInShape = aResult->impl<TopoDS_Shape>();
 304   NCollection_List<TopoDS_Shape> anUngroupedShapes;
 305   addSimpleShapeToList(anInShape, anUngroupedShapes);
 306
 307   NCollection_Vector<NCollection_List<TopoDS_Shape>> aGroups;
 308   while(!anUngroupedShapes.IsEmpty()) {
 309     NCollection_List<TopoDS_Shape> aGroupedShapes;
 310     aGroupedShapes.Append(anUngroupedShapes.First());
 311     anUngroupedShapes.RemoveFirst();
 312     for(NCollection_List<TopoDS_Shape>::Iterator aGroupIt(aGroupedShapes);
 313         aGroupIt.More(); aGroupIt.Next()) {
 314       const TopoDS_Shape& aGroupShape = aGroupIt.Value();
 315       for(NCollection_List<TopoDS_Shape>::Iterator anUngroupedIt(anUngroupedShapes);
 316           anUngroupedIt.More(); anUngroupedIt.Next()) {
 317         const TopoDS_Shape& anUngroupedShape = anUngroupedIt.Value();
 318         bool isFound = false;
 319         for(TopExp_Explorer aGroupShapeExp(aGroupShape, TopAbs_VERTEX);
 320             aGroupShapeExp.More(); aGroupShapeExp.Next()) {
 321           const TopoDS_Shape& aVertex1 = aGroupShapeExp.Current();
 322           for(TopExp_Explorer anUngroupedShapeExp(anUngroupedShape, TopAbs_VERTEX);
 323               anUngroupedShapeExp.More(); anUngroupedShapeExp.Next()) {
 324             const TopoDS_Shape& aVertex2 = anUngroupedShapeExp.Current();
 325             if(aVertex1.IsSame(aVertex2)) {
 326               aGroupedShapes.Append(anUngroupedShape);
 327               anUngroupedShapes.Remove(anUngroupedIt);
 328               isFound = true;
 329               break;
 330             }
 331           }
 332           if(isFound) {
 333             break;
 334           }
 335         }
 336         if(!anUngroupedIt.More()) {
 337           break;
 338         }
 339       }
 340     }
 341     aGroups.Append(aGroupedShapes);
 342   }
 343
 344   TopoDS_Compound aCompound;
 345   BRep_Builder aBuilder;
 346   aBuilder.MakeCompound(aCompound);
 347   ListOfShape aCompSolids, aFreeSolids;
 348   for(NCollection_Vector<NCollection_List<TopoDS_Shape>>::Iterator
 349       anIt(aGroups); anIt.More(); anIt.Next()) {
 350     NCollection_List<TopoDS_Shape> aGroup = anIt.Value();
 351     GeomShapePtr aGeomShape(new GeomAPI_Shape());
 352     if(aGroup.Size() == 1) {
 353       aGeomShape->setImpl(new TopoDS_Shape(aGroup.First()));
 354     } else {
 355       aGeomShape->setImpl(new TopoDS_Shape(makeCompound(aGroup)));
 356       aGeomShape = GeomAlgoAPI_ShapeTools::combineShapes(aGeomShape,
 357                                                          GeomAPI_Shape::COMPSOLID,
 358                                                          aCompSolids,
 359                                                          aFreeSolids);
 360     }
 361     aBuilder.Add(aCompound, aGeomShape->impl<TopoDS_Shape>());
 362   }
 363
 364   if(!aCompound.IsNull()) {
 365     aResult->setImpl(new TopoDS_Shape(aCompound));
 366   }
 367
 368   return aResult;
 369 }
 370
 371 //==================================================================================================
 372 std::list<std::shared_ptr<GeomAPI_Pnt> >
 373   GeomAlgoAPI_ShapeTools::getBoundingBox(const ListOfShape& theShapes, const double theEnlarge)
 374 {
 375   // Bounding box of all objects.
 376   Bnd_Box aBndBox;
 377
 378   // Getting box.
 379   for (ListOfShape::const_iterator
 380     anObjectsIt = theShapes.begin(); anObjectsIt != theShapes.end(); anObjectsIt++) {
 381     const TopoDS_Shape& aShape = (*anObjectsIt)->impl<TopoDS_Shape>();
 382     BRepBndLib::Add(aShape, aBndBox);
 383   }
 384
 385   if(theEnlarge != 0.0) {
 386     // We enlarge bounding box just to be sure that plane will be large enough to cut all objects.
 387     aBndBox.Enlarge(theEnlarge);
 388   }
 389
 390   Standard_Real aXArr[2] = {aBndBox.CornerMin().X(), aBndBox.CornerMax().X()};
 391   Standard_Real aYArr[2] = {aBndBox.CornerMin().Y(), aBndBox.CornerMax().Y()};
 392   Standard_Real aZArr[2] = {aBndBox.CornerMin().Z(), aBndBox.CornerMax().Z()};
 393   std::list<std::shared_ptr<GeomAPI_Pnt> > aResultPoints;
 394   int aNum = 0;
 395   for(int i = 0; i < 2; i++) {
 396     for(int j = 0; j < 2; j++) {
 397       for(int k = 0; k < 2; k++) {
 398         std::shared_ptr<GeomAPI_Pnt> aPnt(new GeomAPI_Pnt(aXArr[i], aYArr[j], aZArr[k]));
 399         aResultPoints.push_back(aPnt);
 400       }
 401     }
 402   }
 403
 404   return aResultPoints;
 405 }
 406
 407 //==================================================================================================
 408 std::shared_ptr<GeomAPI_Shape>
 409   GeomAlgoAPI_ShapeTools::faceToInfinitePlane(const std::shared_ptr<GeomAPI_Shape> theFace)
 410 {
 411   if (!theFace.get())
 412     return std::shared_ptr<GeomAPI_Shape>();
 413
 414   TopoDS_Face aPlaneFace = TopoDS::Face(theFace->impl<TopoDS_Shape>());
 415   if (aPlaneFace.IsNull())
 416     return std::shared_ptr<GeomAPI_Shape>();
 417
 418   Handle(Geom_Plane) aPlane = Handle(Geom_Plane)::DownCast(BRep_Tool::Surface(aPlaneFace));
 419   if (aPlane.IsNull())
 420     return std::shared_ptr<GeomAPI_Shape>();
 421
 422   // make an infinity face on the plane
 423   TopoDS_Shape anInfiniteFace = BRepBuilderAPI_MakeFace(aPlane->Pln()).Shape();
 424
 425   std::shared_ptr<GeomAPI_Shape> aResult(new GeomAPI_Shape);
 426   aResult->setImpl(new TopoDS_Shape(anInfiniteFace));
 427   return aResult;
 428 }
 429
 430 //==================================================================================================
 431 std::shared_ptr<GeomAPI_Face> GeomAlgoAPI_ShapeTools::fitPlaneToBox(
 432   const std::shared_ptr<GeomAPI_Shape> thePlane,
 433   const std::list<std::shared_ptr<GeomAPI_Pnt> >& thePoints)
 434 {
 435   std::shared_ptr<GeomAPI_Face> aResultFace;
 436
 437   if(!thePlane.get()) {
 438     return aResultFace;
 439   }
 440
 441   const TopoDS_Shape& aShape = thePlane->impl<TopoDS_Shape>();
 442   if(aShape.ShapeType() != TopAbs_FACE) {
 443     return aResultFace;
 444   }
 445
 446   TopoDS_Face aFace = TopoDS::Face(aShape);
 447   Handle(Geom_Surface) aSurf = BRep_Tool::Surface(aFace);
 448   if(aSurf.IsNull()) {
 449     return aResultFace;
 450   }
 451
 452   GeomLib_IsPlanarSurface isPlanar(aSurf);
 453   if(!isPlanar.IsPlanar()) {
 454     return aResultFace;
 455   }
 456
 457   if(thePoints.size() != 8) {
 458     return aResultFace;
 459   }
 460
 461   const gp_Pln& aFacePln = isPlanar.Plan();
 462   Handle(Geom_Plane) aFacePlane = new Geom_Plane(aFacePln);
 463   IntAna_Quadric aQuadric(aFacePln);
 464   Standard_Real UMin, UMax, VMin, VMax;
 465   UMin = UMax = VMin = VMax = 0;
 466   for (std::list<std::shared_ptr<GeomAPI_Pnt> >::const_iterator
 467        aPointsIt = thePoints.begin(); aPointsIt != thePoints.end(); aPointsIt++) {
 468     const gp_Pnt& aPnt = (*aPointsIt)->impl<gp_Pnt>();
 469     gp_Lin aLin(aPnt, aFacePln.Axis().Direction());
 470     IntAna_IntConicQuad anIntAna(aLin, aQuadric);
 471     const gp_Pnt& aPntOnFace = anIntAna.Point(1);
 472     Standard_Real aPntU(0), aPntV(0);
 473     GeomLib_Tool::Parameters(aFacePlane, aPntOnFace, Precision::Confusion(), aPntU, aPntV);
 474     if(aPntU < UMin) UMin = aPntU;
 475     if(aPntU > UMax) UMax = aPntU;
 476     if(aPntV < VMin) VMin = aPntV;
 477     if(aPntV > VMax) VMax = aPntV;
 478   }
 479   aResultFace.reset(new GeomAPI_Face());
 480   aResultFace->setImpl(new TopoDS_Face(BRepLib_MakeFace(aFacePln, UMin, UMax, VMin, VMax).Face()));
 481
 482   return aResultFace;
 483 }
 484
 485 //==================================================================================================
 486 void GeomAlgoAPI_ShapeTools::findBounds(const std::shared_ptr<GeomAPI_Shape> theShape,
 487                                         std::shared_ptr<GeomAPI_Vertex>& theV1,
 488                                         std::shared_ptr<GeomAPI_Vertex>& theV2)
 489 {
 490   if(!theShape.get()) {
 491     std::shared_ptr<GeomAPI_Vertex> aVertex(new GeomAPI_Vertex);
 492     aVertex->setImpl(new TopoDS_Vertex());
 493     theV1 = aVertex;
 494     theV2 = aVertex;
 495     return;
 496   }
 497
 498   const TopoDS_Shape& aShape = theShape->impl<TopoDS_Shape>();
 499   TopoDS_Vertex aV1, aV2;
 500   ShapeAnalysis::FindBounds(aShape, aV1, aV2);
 501
 502   std::shared_ptr<GeomAPI_Vertex> aGeomV1(new GeomAPI_Vertex()), aGeomV2(new GeomAPI_Vertex());
 503   aGeomV1->setImpl(new TopoDS_Vertex(aV1));
 504   aGeomV2->setImpl(new TopoDS_Vertex(aV2));
 505   theV1 = aGeomV1;
 506   theV2 = aGeomV2;
 507 }
 508
 509 //==================================================================================================
 510 void GeomAlgoAPI_ShapeTools::makeFacesWithHoles(const std::shared_ptr<GeomAPI_Pnt> theOrigin,
 511                                                 const std::shared_ptr<GeomAPI_Dir> theDirection,
 512                                                 const ListOfShape& theWires,
 513                                                 ListOfShape& theFaces)
 514 {
 515   BRepBuilderAPI_MakeFace aMKFace(gp_Pln(theOrigin->impl<gp_Pnt>(),
 516                                           theDirection->impl<gp_Dir>()));
 517   TopoDS_Face aFace = aMKFace.Face();
 518
 519   BRepAlgo_FaceRestrictor aFRestrictor;
 520   aFRestrictor.Init(aFace, Standard_False, Standard_True);
 521   for(ListOfShape::const_iterator anIt = theWires.cbegin();
 522       anIt != theWires.cend();
 523       ++anIt) {
 524     TopoDS_Wire aWire = TopoDS::Wire((*anIt)->impl<TopoDS_Shape>());
 525     aFRestrictor.Add(aWire);
 526   }
 527
 528   aFRestrictor.Perform();
 529
 530   if(!aFRestrictor.IsDone()) {
 531     return;
 532   }
 533
 534   for(; aFRestrictor.More(); aFRestrictor.Next()) {
 535     GeomShapePtr aShape(new GeomAPI_Shape());
 536     aShape->setImpl(new TopoDS_Shape(aFRestrictor.Current()));
 537     theFaces.push_back(aShape);
 538   }
 539 }
 540
 541 //==================================================================================================
 542 std::shared_ptr<GeomAPI_Pln> GeomAlgoAPI_ShapeTools::findPlane(const ListOfShape& theShapes)
 543 {
 544   TopoDS_Compound aCompound;
 545   BRep_Builder aBuilder;
 546   aBuilder.MakeCompound(aCompound);
 547
 548   for(ListOfShape::const_iterator anIt = theShapes.cbegin(); anIt != theShapes.cend(); ++anIt) {
 549     aBuilder.Add(aCompound, (*anIt)->impl<TopoDS_Shape>());
 550   }
 551   BRepBuilderAPI_FindPlane aFindPlane(aCompound);
 552
 553   if(aFindPlane.Found() != Standard_True) {
 554     return std::shared_ptr<GeomAPI_Pln>();
 555   }
 556
 557   Handle(Geom_Plane) aPlane = aFindPlane.Plane();
 558   gp_Pnt aLoc = aPlane->Location();
 559   gp_Dir aDir = aPlane->Axis().Direction();
 560
 561   std::shared_ptr<GeomAPI_Pnt> aGeomPnt(new GeomAPI_Pnt(aLoc.X(), aLoc.Y(), aLoc.Z()));
 562   std::shared_ptr<GeomAPI_Dir> aGeomDir(new GeomAPI_Dir(aDir.X(), aDir.Y(), aDir.Z()));
 563
 564   std::shared_ptr<GeomAPI_Pln> aPln(new GeomAPI_Pln(aGeomPnt, aGeomDir));
 565
 566   return aPln;
 567 }
 568
 569 //==================================================================================================
 570 bool GeomAlgoAPI_ShapeTools::isSubShapeInsideShape(
 571   const std::shared_ptr<GeomAPI_Shape> theSubShape,
 572   const std::shared_ptr<GeomAPI_Shape> theBaseShape)
 573 {
 574   if(!theSubShape.get() || !theBaseShape.get()) {
 575     return false;
 576   }
 577
 578   const TopoDS_Shape& aSubShape = theSubShape->impl<TopoDS_Shape>();
 579   const TopoDS_Shape& aBaseShape = theBaseShape->impl<TopoDS_Shape>();
 580
 581   if(aSubShape.ShapeType() == TopAbs_VERTEX) {
 582     // If sub-shape is a vertex check distance to shape. If it is <= Precision::Confusion() then OK.
 583     BRepExtrema_DistShapeShape aDist(aBaseShape, aSubShape);
 584     aDist.Perform();
 585     if(!aDist.IsDone() || aDist.Value() > Precision::Confusion()) {
 586       return false;
 587     }
 588   } else if (aSubShape.ShapeType() == TopAbs_EDGE) {
 589     if(aBaseShape.ShapeType() == TopAbs_FACE) {
 590       // Check that edge is on face surface.
 591       TopoDS_Face aFace = TopoDS::Face(aBaseShape);
 592       TopoDS_Edge anEdge = TopoDS::Edge(aSubShape);
 593       BRepLib_CheckCurveOnSurface aCheck(anEdge, aFace);
 594       aCheck.Perform();
 595       if(!aCheck.IsDone() || aCheck.MaxDistance() > Precision::Confusion()) {
 596         return false;
 597       }
 598
 599       // Check intersections.
 600       TopoDS_Vertex aV1, aV2;
 601       ShapeAnalysis::FindBounds(anEdge, aV1, aV2);
 602       gp_Pnt aPnt1 = BRep_Tool::Pnt(aV1);
 603       gp_Pnt aPnt2 = BRep_Tool::Pnt(aV2);
 604       for(TopExp_Explorer anExp(aBaseShape, TopAbs_EDGE); anExp.More(); anExp.Next()) {
 605         const TopoDS_Shape& anEdgeOnFace = anExp.Current();
 606         BRepExtrema_DistShapeShape aDist(anEdgeOnFace, anEdge);
 607         aDist.Perform();
 608         if(aDist.IsDone() && aDist.Value() <= Precision::Confusion()) {
 609           // Edge intersect face bound. Check that it is not on edge begin or end.
 610           for(Standard_Integer anIndex = 1; anIndex <= aDist.NbSolution(); ++anIndex) {
 611             gp_Pnt aPntOnSubShape = aDist.PointOnShape2(anIndex);
 612             if(aPntOnSubShape.Distance(aPnt1) > Precision::Confusion()
 613                 && aPntOnSubShape.Distance(aPnt2) > Precision::Confusion()) {
 614               return false;
 615             }
 616           }
 617         }
 618       }
 619
 620       // No intersections found. Edge is inside or outside face. Check it.
 621       BRepAdaptor_Curve aCurveAdaptor(anEdge);
 622       gp_Pnt aPointToCheck =
 623         aCurveAdaptor.Value((aCurveAdaptor.FirstParameter() +
 624                               aCurveAdaptor.LastParameter()) / 2.0);
 625       Handle(Geom_Surface) aSurface = BRep_Tool::Surface(aFace);
 626       ShapeAnalysis_Surface aSAS(aSurface);
 627       gp_Pnt2d aPointOnFace = aSAS.ValueOfUV(aPointToCheck, Precision::Confusion());
 628       BRepTopAdaptor_FClass2d aFClass2d(aFace, Precision::Confusion());
 629       if(aFClass2d.Perform(aPointOnFace) == TopAbs_OUT) {
 630         return false;
 631       }
 632
 633     } else {
 634       return false;
 635     }
 636   } else {
 637     return false;
 638   }
 639
 640   return true;
 641 }
 642
 643 //==================================================================================================
 644 bool GeomAlgoAPI_ShapeTools::isShapeValid(const std::shared_ptr<GeomAPI_Shape> theShape)
 645 {
 646   if(!theShape.get()) {
 647     return false;
 648   }
 649
 650   BRepCheck_Analyzer aChecker(theShape->impl<TopoDS_Shape>());
 651   return (aChecker.IsValid() == Standard_True);
 652 }
 653
 654 //==================================================================================================
 655 std::shared_ptr<GeomAPI_Shape>
 656   GeomAlgoAPI_ShapeTools::getFaceOuterWire(const std::shared_ptr<GeomAPI_Shape> theFace)
 657 {
 658   GeomShapePtr anOuterWire;
 659
 660   if(!theFace.get() || !theFace->isFace()) {
 661     return anOuterWire;
 662   }
 663
 664   TopoDS_Face aFace = TopoDS::Face(theFace->impl<TopoDS_Shape>());
 665   TopoDS_Wire aWire = BRepTools::OuterWire(aFace);
 666
 667   anOuterWire.reset(new GeomAPI_Shape());
 668   anOuterWire->setImpl(new TopoDS_Shape(aWire));
 669
 670   return anOuterWire;
 671 }
 672
 673 //==================================================================================================
 674 bool GeomAlgoAPI_ShapeTools::isParallel(const std::shared_ptr<GeomAPI_Edge> theEdge,
 675                                         const std::shared_ptr<GeomAPI_Face> theFace)
 676 {
 677   if(!theEdge.get() || !theFace.get()) {
 678     return false;
 679   }
 680
 681   TopoDS_Edge anEdge = TopoDS::Edge(theEdge->impl<TopoDS_Shape>());
 682   TopoDS_Face aFace  = TopoDS::Face(theFace->impl<TopoDS_Shape>());
 683
 684   BRepExtrema_ExtCF anExt(anEdge, aFace);
 685   return anExt.IsParallel() == Standard_True;
 686 }
 687
 688 //==================================================================================================
 689 void GeomAlgoAPI_ShapeTools::splitShape(const std::shared_ptr<GeomAPI_Shape>& theBaseShape,
 690                                           const std::list<std::shared_ptr<GeomAPI_Pnt> >& thePoints,
 691                                           std::set<std::shared_ptr<GeomAPI_Shape> >& theShapes)
 692 {
 693   // General Fuse to split edge by vertices
 694   BOPAlgo_Builder aBOP;
 695   TopoDS_Edge aBaseEdge = theBaseShape->impl<TopoDS_Edge>();
 696   // Rebuild closed edge to place vertex to one of split points.
 697   // This will prevent edge to be split on seam vertex.
 698   if (BRep_Tool::IsClosed(aBaseEdge))
 699   {
 700     Standard_Real aFirst, aLast;
 701     Handle(Geom_Curve) aCurve = BRep_Tool::Curve(aBaseEdge, aFirst, aLast);
 702
 703     std::list<std::shared_ptr<GeomAPI_Pnt> >::const_iterator aPIt = thePoints.begin();
 704     gp_Pnt aPoint((*aPIt)->x(), (*aPIt)->y(), (*aPIt)->z());
 705
 706     TopAbs_Orientation anOrientation = aBaseEdge.Orientation();
 707     aBaseEdge = BRepBuilderAPI_MakeEdge(aCurve, aPoint, aPoint).Edge();
 708     aBaseEdge.Orientation(anOrientation);
 709   }
 710   aBOP.AddArgument(aBaseEdge);
 711
 712   std::list<std::shared_ptr<GeomAPI_Pnt> >::const_iterator aPtIt = thePoints.begin();
 713   for (; aPtIt != thePoints.end(); ++aPtIt) {
 714     std::shared_ptr<GeomAPI_Pnt> aPnt = *aPtIt;
 715     TopoDS_Vertex aV = BRepBuilderAPI_MakeVertex(gp_Pnt(aPnt->x(), aPnt->y(), aPnt->z()));
 716     aBOP.AddArgument(aV);
 717   }
 718
 719   aBOP.Perform();
 720   if (aBOP.ErrorStatus())
 721     return;
 722
 723   // Collect splits
 724   const TopTools_ListOfShape& aSplits = aBOP.Modified(aBaseEdge);
 725   TopTools_ListIteratorOfListOfShape anIt(aSplits);
 726   for (; anIt.More(); anIt.Next()) {
 727     std::shared_ptr<GeomAPI_Shape> anEdge(new GeomAPI_Shape);
 728     anEdge->setImpl(new TopoDS_Shape(anIt.Value()));
 729     theShapes.insert(anEdge);
 730   }
 731 }
 732
 733 //==================================================================================================
 734 std::shared_ptr<GeomAPI_Shape> GeomAlgoAPI_ShapeTools::findShape(
 735                                   const std::list<std::shared_ptr<GeomAPI_Pnt> >& thePoints,
 736                                   const std::set<std::shared_ptr<GeomAPI_Shape> >& theShapes)
 737 {
 738   std::shared_ptr<GeomAPI_Shape> aResultShape;
 739
 740   if (thePoints.size() == 2) {
 741     std::list<std::shared_ptr<GeomAPI_Pnt> >::const_iterator aPntIt = thePoints.begin();
 742     std::shared_ptr<GeomAPI_Pnt> aFirstPoint = *aPntIt;
 743     aPntIt++;
 744     std::shared_ptr<GeomAPI_Pnt> aLastPoint = *aPntIt;
 745
 746     std::set<std::shared_ptr<GeomAPI_Shape> >::const_iterator anIt = theShapes.begin(),
 747                                                               aLast = theShapes.end();
 748     for (; anIt != aLast; anIt++) {
 749       GeomShapePtr aShape = *anIt;
 750       std::shared_ptr<GeomAPI_Edge> anEdge(new GeomAPI_Edge(aShape));
 751       if (anEdge.get()) {
 752         std::shared_ptr<GeomAPI_Pnt> anEdgeFirstPoint = anEdge->firstPoint();
 753         std::shared_ptr<GeomAPI_Pnt> anEdgeLastPoint = anEdge->lastPoint();
 754         if (anEdgeFirstPoint->isEqual(aFirstPoint) &&
 755             anEdgeLastPoint->isEqual(aLastPoint))
 756             aResultShape = aShape;
 757       }
 758     }
 759   }
 760
 761   return aResultShape;
 762 }