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