src/GeomAlgoAPI/GeomAlgoAPI_Revolution.cpp

   1 // Copyright (C) 2014-2017  CEA/DEN, EDF R&D
   2 //
   3 // This library is free software; you can redistribute it and/or
   4 // modify it under the terms of the GNU Lesser General Public
   5 // License as published by the Free Software Foundation; either
   6 // version 2.1 of the License, or (at your option) any later version.
   7 //
   8 // This library is distributed in the hope that it will be useful,
   9 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  10 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  11 // Lesser General Public License for more details.
  12 //
  13 // You should have received a copy of the GNU Lesser General Public
  14 // License along with this library; if not, write to the Free Software
  15 // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
  16 //
  17 // See http://www.salome-platform.org/ or
  18 // email : webmaster.salome@opencascade.com<mailto:webmaster.salome@opencascade.com>
  19 //
  20
  21 #include "GeomAlgoAPI_Revolution.h"
  22
  23 #include <GeomAPI_Face.h>
  24 #include <GeomAPI_Pln.h>
  25 #include <GeomAPI_ShapeExplorer.h>
  26 #include <GeomAlgoAPI_DFLoader.h>
  27 #include <GeomAlgoAPI_FaceBuilder.h>
  28 #include <GeomAlgoAPI_MakeShapeList.h>
  29 #include <GeomAlgoAPI_ShapeTools.h>
  30
  31 #include <BRep_Builder.hxx>
  32 #include <BRep_Tool.hxx>
  33 #include <BRepAlgoAPI_Cut.hxx>
  34 #include <BRepBuilderAPI_FindPlane.hxx>
  35 #include <BRepBuilderAPI_MakeFace.hxx>
  36 #include <BRepBuilderAPI_Transform.hxx>
  37 #include <BRepCheck_Analyzer.hxx>
  38 #include <Geom_Curve.hxx>
  39 #include <Geom2d_Curve.hxx>
  40 #include <BRepLib_CheckCurveOnSurface.hxx>
  41 #include <BRepPrimAPI_MakeRevol.hxx>
  42 #include <BRepGProp.hxx>
  43 #include <GC_MakePlane.hxx>
  44 #include <Geom_Plane.hxx>
  45 #include <GeomLib_IsPlanarSurface.hxx>
  46 #include <gp_Pln.hxx>
  47 #include <GProp_GProps.hxx>
  48 #include <IntTools_Context.hxx>
  49 #include <TopExp_Explorer.hxx>
  50 #include <TopoDS.hxx>
  51 #include <TopoDS_Edge.hxx>
  52 #include <TopTools_ListIteratorOfListOfShape.hxx>
  53
  54 /// \brief Constructs infinite face from thePlane, and with axis located on the same side
  55 /// of the plane as thePoint. Modifies thePlane axis direction.
  56 /// \param[in,out] thePlane plane to construct face.
  57 /// \param[in] thePoint point to locate plane axis.
  58 /// \return constructed face.
  59 static TopoDS_Face makeFaceFromPlane(gp_Pln& thePlane, const gp_Pnt& thePoint);
  60
  61 /// \return solid created from face or shell.
  62 static TopoDS_Solid makeSolidFromShape(const TopoDS_Shape& theShape);
  63
  64 /// \brief return centre of mass for theShape.
  65 /// \param[in] theShape shape.
  66 static gp_Pnt centreOfMass(const TopoDS_Shape& theShape);
  67
  68 /// \brief Selects solid from theShape with closest center of mass to thePoint
  69 /// \param[in] theShape compound with solids.
  70 /// \param[in] thePoint point.
  71 /// \return solid.
  72 static TopoDS_Shape findClosest(const TopoDS_Shape& theShape, const gp_Pnt& thePoint);
  73
  74 static void storeGenerationHistory(GeomAlgoAPI_Revolution* theRevolutionAlgo,
  75                                    const TopoDS_Shape& theBase,
  76                                    const TopAbs_ShapeEnum theType,
  77                                    BRepPrimAPI_MakeRevol* theRevolBuilder);
  78
  79 static void storeGenerationHistory(GeomAlgoAPI_Revolution* theRevolutionAlgo,
  80                                    const TopoDS_Shape& theResult,
  81                                    const TopAbs_ShapeEnum theType,
  82                                    const TopoDS_Shape& theToFace,
  83                                    const TopoDS_Shape& theFromFace);
  84
  85 static void storeGenerationHistory(GeomAlgoAPI_Revolution* theRevolutionAlgo,
  86                                    const TopoDS_Shape& theResult,
  87                                    const TopAbs_ShapeEnum theType,
  88                                    const TopoDS_Shape& theRotatedBoundingFace,
  89                                    const TopoDS_Shape& theModifiedBaseShape,
  90                                    const bool theIsFromFaceSet);
  91
  92 //==================================================================================================
  93 GeomAlgoAPI_Revolution::GeomAlgoAPI_Revolution(const GeomShapePtr                 theBaseShape,
  94                                                const std::shared_ptr<GeomAPI_Ax1> theAxis,
  95                                                const GeomShapePtr                 theToShape,
  96                                                const double                       theToAngle,
  97                                                const GeomShapePtr                 theFromShape,
  98                                                const double                       theFromAngle)
  99 {
 100   build(theBaseShape, theAxis, theToShape, theToAngle, theFromShape, theFromAngle);
 101 }
 102
 103 //==================================================================================================
 104 void GeomAlgoAPI_Revolution::build(const GeomShapePtr&                 theBaseShape,
 105                                    const std::shared_ptr<GeomAPI_Ax1>& theAxis,
 106                                    const GeomShapePtr&                 theToShape,
 107                                    const double                        theToAngle,
 108                                    const GeomShapePtr&                 theFromShape,
 109                                    const double                        theFromAngle)
 110 {
 111   if(!theBaseShape || !theAxis ||
 112     (((!theFromShape && !theToShape) ||
 113     (theFromShape && theToShape && theFromShape->isEqual(theToShape)))
 114     && (theFromAngle == -theToAngle))) {
 115     return;
 116   }
 117
 118   // Getting base shape.
 119   const TopoDS_Shape& aBaseShape = theBaseShape->impl<TopoDS_Shape>();
 120   TopAbs_ShapeEnum aShapeTypeToExp;
 121   switch(aBaseShape.ShapeType()) {
 122     case TopAbs_VERTEX:
 123       aShapeTypeToExp = TopAbs_VERTEX;
 124       break;
 125     case TopAbs_EDGE:
 126     case TopAbs_WIRE:
 127       aShapeTypeToExp = TopAbs_EDGE;
 128       break;
 129     case TopAbs_FACE:
 130     case TopAbs_SHELL:
 131       aShapeTypeToExp = TopAbs_FACE;
 132       break;
 133     case TopAbs_COMPOUND:
 134       aShapeTypeToExp = TopAbs_COMPOUND;
 135       break;
 136     default:
 137       return;
 138   }
 139
 140   // Getting axis.
 141   gp_Ax1 anAxis = theAxis->impl<gp_Ax1>();
 142
 143   // Getting base plane.
 144   Handle(Geom_Plane) aBasePlane;
 145   BRepBuilderAPI_FindPlane aFindPlane(aBaseShape);
 146   if(aShapeTypeToExp == TopAbs_FACE && aFindPlane.Found() == Standard_True) {
 147     aBasePlane = aFindPlane.Plane();
 148   } else {
 149     gp_Pnt aPnt1 = anAxis.Location();
 150     gp_Pnt aPnt2 = aPnt1;
 151     aPnt2.Translate(anAxis.Direction());
 152     gp_Pnt aPnt3;
 153
 154     for(TopExp_Explorer anExp(aBaseShape, TopAbs_VERTEX); anExp.More(); anExp.Next()) {
 155       aPnt3 = BRep_Tool::Pnt(TopoDS::Vertex(anExp.Current()));
 156
 157       GC_MakePlane aMkPlane(aPnt1, aPnt2, aPnt3);
 158       if(aMkPlane.IsDone() != Standard_True) {
 159         continue;
 160       }
 161
 162       aBasePlane = aMkPlane.Value();
 163       break;
 164     }
 165
 166     if(aBasePlane.IsNull()) {
 167       aPnt3 = centreOfMass(aBaseShape);
 168
 169       GC_MakePlane aMkPlane(aPnt1, aPnt2, aPnt3);
 170       if(aMkPlane.IsDone() != Standard_True) {
 171         return;
 172       }
 173
 174       aBasePlane = aMkPlane.Value();
 175     }
 176   }
 177
 178   if(aShapeTypeToExp == TopAbs_FACE) {
 179     if(aBasePlane->Axis().Angle(anAxis) < Precision::Confusion()) {
 180       return;
 181     }
 182   }
 183
 184   gp_Pnt aBaseCentre = GeomAlgoAPI_ShapeTools::centreOfMass(theBaseShape)->impl<gp_Pnt>();
 185
 186   TopoDS_Shape aResult;
 187   if(!theFromShape && !theToShape) { // Case 1: When only angles was set.
 188     // Rotating base face with the negative value of "from angle".
 189     gp_Trsf aBaseTrsf;
 190     aBaseTrsf.SetRotation(anAxis, -theFromAngle / 180.0 * M_PI);
 191     BRepBuilderAPI_Transform* aBaseTransform = new BRepBuilderAPI_Transform(aBaseShape,
 192                                                                             aBaseTrsf,
 193                                                                             true);
 194     if(!aBaseTransform) {
 195       return;
 196     }
 197     this->appendAlgo(std::shared_ptr<GeomAlgoAPI_MakeShape>(
 198       new GeomAlgoAPI_MakeShape(aBaseTransform)));
 199     if(!aBaseTransform->IsDone()) {
 200       return;
 201     }
 202     TopoDS_Shape aRotatedBase = aBaseTransform->Shape();
 203
 204     // Making revolution to the angle equal to the sum of "from angle" and "to angle".
 205     BRepPrimAPI_MakeRevol* aRevolBuilder = new BRepPrimAPI_MakeRevol(aRotatedBase,
 206                                                         anAxis,
 207                                                         (theFromAngle + theToAngle) / 180 * M_PI,
 208                                                         Standard_True);
 209     if(!aRevolBuilder) {
 210       return;
 211     }
 212     this->appendAlgo(std::shared_ptr<GeomAlgoAPI_MakeShape>(
 213       new GeomAlgoAPI_MakeShape(aRevolBuilder)));
 214     if(!aRevolBuilder->IsDone()) {
 215       return;
 216     }
 217     aResult = aRevolBuilder->Shape();
 218
 219     // Setting naming.
 220     if(aShapeTypeToExp == TopAbs_COMPOUND) {
 221       storeGenerationHistory(this, aRotatedBase, TopAbs_EDGE, aRevolBuilder);
 222       storeGenerationHistory(this, aRotatedBase, TopAbs_FACE, aRevolBuilder);
 223     } else {
 224       storeGenerationHistory(this, aRotatedBase, aShapeTypeToExp, aRevolBuilder);
 225     }
 226   } else if(theFromShape && theToShape) { // Case 2: When both bounding planes were set.
 227     // Making revolution to the 360 angle.
 228     BRepPrimAPI_MakeRevol* aRevolBuilder =
 229       new BRepPrimAPI_MakeRevol(aBaseShape, anAxis, 2 * M_PI, Standard_True);
 230     if(!aRevolBuilder) {
 231       return;
 232     }
 233     this->appendAlgo(std::shared_ptr<GeomAlgoAPI_MakeShape>(
 234       new GeomAlgoAPI_MakeShape(aRevolBuilder)));
 235     if(!aRevolBuilder->IsDone()) {
 236       return;
 237     }
 238     aResult = aRevolBuilder->Shape();
 239
 240     // Getting bounding faces.
 241     TopoDS_Face aFromFace = TopoDS::Face(theFromShape->impl<TopoDS_Shape>());
 242     TopoDS_Face aToFace   = TopoDS::Face(theToShape->impl<TopoDS_Shape>());
 243
 244     // Getting planes from bounding face.
 245     GeomLib_IsPlanarSurface isFromPlanar(BRep_Tool::Surface(aFromFace));
 246     GeomLib_IsPlanarSurface isToPlanar(BRep_Tool::Surface(aToFace));
 247     if(!isFromPlanar.IsPlanar() || !isToPlanar.IsPlanar()) {
 248       // non-planar shapes is not supported for revolution bounding
 249       return;
 250     }
 251
 252     std::shared_ptr<GeomAPI_Face> aGeomFromFace(new GeomAPI_Face(theFromShape));
 253     std::shared_ptr<GeomAPI_Face> aGeomToFace(new GeomAPI_Face(theToShape));
 254
 255     gp_Pln aFromPln = aGeomFromFace->getPlane()->impl<gp_Pln>();
 256     gp_Pln aToPln   = aGeomToFace->getPlane()->impl<gp_Pln>();
 257
 258     // Orienting bounding planes properly so that the center of mass of the base face stays
 259     // on the result shape after cut.
 260     aFromFace = makeFaceFromPlane(aFromPln, aBaseCentre);
 261     aToFace   = makeFaceFromPlane(aToPln, aBaseCentre);
 262
 263     // Making solids from bounding planes and putting them in compound.
 264     TopoDS_Shape aFromSolid = makeSolidFromShape(aFromFace);
 265     TopoDS_Shape aToSolid   = makeSolidFromShape(aToFace);
 266
 267     // Rotating bounding planes to the specified angle.
 268     gp_Trsf aFromTrsf;
 269     gp_Trsf aToTrsf;
 270     double aFromRotAngle =
 271       ((aFromPln.Axis().Direction() * aBasePlane->Axis().Direction()) > 0) ? -theFromAngle :
 272                                                                               theFromAngle;
 273     double aToRotAngle =
 274       ((aToPln.Axis().Direction() * aBasePlane->Axis().Direction()) > 0) ? -theToAngle :
 275                                                                             theToAngle;
 276     aFromTrsf.SetRotation(anAxis,aFromRotAngle / 180.0 * M_PI);
 277     aToTrsf.SetRotation(anAxis, aToRotAngle / 180.0 * M_PI);
 278     BRepBuilderAPI_Transform aFromTransform(aFromSolid, aFromTrsf, true);
 279     BRepBuilderAPI_Transform aToTransform(aToSolid, aToTrsf, true);
 280     TopoDS_Shape aRotatedFromFace = aFromTransform.Modified(aFromFace).First();
 281     TopoDS_Shape aRotatedToFace = aToTransform.Modified(aToFace).First();
 282     aFromSolid = aFromTransform.Shape();
 283     aToSolid = aToTransform.Shape();
 284
 285     // Cutting revolution with from plane.
 286     BRepAlgoAPI_Cut* aFromCutBuilder = new BRepAlgoAPI_Cut(aResult, aFromSolid);
 287     aFromCutBuilder->Build();
 288     if(!aFromCutBuilder->IsDone()) {
 289       return;
 290     }
 291     this->appendAlgo(std::shared_ptr<GeomAlgoAPI_MakeShape>(
 292       new GeomAlgoAPI_MakeShape(aFromCutBuilder)));
 293     aResult = aFromCutBuilder->Shape();
 294     if(aResult.ShapeType() == TopAbs_COMPOUND) {
 295       aResult = GeomAlgoAPI_DFLoader::refineResult(aResult);
 296     }
 297
 298     // Cutting revolution with to plane.
 299     BRepAlgoAPI_Cut* aToCutBuilder = new BRepAlgoAPI_Cut(aResult, aToSolid);
 300     aToCutBuilder->Build();
 301     if(!aToCutBuilder->IsDone()) {
 302       return;
 303     }
 304     this->appendAlgo(std::shared_ptr<GeomAlgoAPI_MakeShape>(
 305       new GeomAlgoAPI_MakeShape(aToCutBuilder)));
 306     aResult = aToCutBuilder->Shape();
 307     TopoDS_Iterator aCheckIt(aResult);
 308     if(!aCheckIt.More()) {
 309       return;
 310     }
 311     if(aResult.ShapeType() == TopAbs_COMPOUND) {
 312       aResult = GeomAlgoAPI_DFLoader::refineResult(aResult);
 313     }
 314     if(aResult.ShapeType() == TopAbs_COMPOUND) {
 315       std::shared_ptr<GeomAPI_Shape> aGeomShape(new GeomAPI_Shape);
 316       aGeomShape->setImpl(new TopoDS_Shape(aResult));
 317       ListOfShape aCompSolids, aFreeSolids;
 318       aGeomShape = GeomAlgoAPI_ShapeTools::combineShapes(aGeomShape,
 319                                                          GeomAPI_Shape::COMPSOLID,
 320                                                          aCompSolids,
 321                                                          aFreeSolids);
 322       aResult = aGeomShape->impl<TopoDS_Shape>();
 323     }
 324
 325     // If after cut we got more than one solids then take closest
 326     // to the center of mass of the base face.
 327     aResult = findClosest(aResult, aBaseCentre);
 328
 329     // Setting naming.
 330     if(aShapeTypeToExp == TopAbs_COMPOUND) {
 331       storeGenerationHistory(this, aResult, TopAbs_EDGE, aRotatedToFace, aRotatedFromFace);
 332       storeGenerationHistory(this, aResult, TopAbs_FACE, aRotatedToFace, aRotatedFromFace);
 333     } else {
 334       storeGenerationHistory(this, aResult, aShapeTypeToExp, aRotatedToFace, aRotatedFromFace);
 335     }
 336   } else { //Case 3: When only one bounding plane was set.
 337     // Making revolution to the 360 angle.
 338     BRepPrimAPI_MakeRevol* aRevolBuilder =
 339       new BRepPrimAPI_MakeRevol(aBaseShape, anAxis, 2 * M_PI, Standard_True);
 340     if(!aRevolBuilder) {
 341       return;
 342     }
 343     this->appendAlgo(std::shared_ptr<GeomAlgoAPI_MakeShape>(
 344       new GeomAlgoAPI_MakeShape(aRevolBuilder)));
 345     if(!aRevolBuilder->IsDone()) {
 346       return;
 347     }
 348     aResult = aRevolBuilder->Shape();
 349
 350     // Getting bounding face.
 351     bool isFromFaceSet = false;
 352     std::shared_ptr<GeomAPI_Face> aGeomBoundingFace;
 353     if(theFromShape) {
 354       aGeomBoundingFace.reset(new GeomAPI_Face(theFromShape));
 355       isFromFaceSet = true;
 356     } else if(theToShape) {
 357       aGeomBoundingFace.reset(new GeomAPI_Face(theToShape));
 358     }
 359     TopoDS_Face aBoundingFace = TopoDS::Face(aGeomBoundingFace->impl<TopoDS_Shape>());
 360
 361     // Getting plane from bounding face.
 362     GeomLib_IsPlanarSurface isBoundingPlanar(BRep_Tool::Surface(aBoundingFace));
 363     if(!isBoundingPlanar.IsPlanar()) { // non-planar shapes is not supported for revolution bounding
 364       return;
 365     }
 366
 367     gp_Pln aBoundingPln = aGeomBoundingFace->getPlane()->impl<gp_Pln>();
 368
 369     // Orienting bounding plane properly so that the center of mass of the base face stays
 370     // on the result shape after cut.
 371     aBoundingFace = makeFaceFromPlane(aBoundingPln, aBaseCentre);
 372
 373     // Making solid from bounding plane.
 374     TopoDS_Shape aBoundingSolid = makeSolidFromShape(aBoundingFace);
 375
 376     // Rotating bounding plane to the specified angle.
 377     double aBoundingRotAngle = isFromFaceSet ? theFromAngle : theToAngle;
 378     if(aBoundingPln.Axis().IsParallel(aBasePlane->Axis(), Precision::Confusion())) {
 379       if(isFromFaceSet) aBoundingRotAngle = -aBoundingRotAngle;
 380     } else {
 381       double aSign = (aBoundingPln.Axis().Direction() ^ aBasePlane->Axis().Direction()) *
 382                      anAxis.Direction();
 383       if((aSign <= 0 && !isFromFaceSet) || (aSign > 0 && isFromFaceSet)) {
 384         aBoundingRotAngle = -aBoundingRotAngle;
 385       }
 386     }
 387     gp_Trsf aBoundingTrsf;
 388     aBoundingTrsf.SetRotation(anAxis, aBoundingRotAngle / 180.0 * M_PI);
 389     BRepBuilderAPI_Transform aBoundingTransform(aBoundingSolid, aBoundingTrsf, true);
 390     TopoDS_Shape aRotatedBoundingFace = aBoundingTransform.Modified(aBoundingFace).First();
 391     aBoundingSolid = aBoundingTransform.Shape();
 392
 393     // Cutting revolution with bounding plane.
 394     BRepAlgoAPI_Cut* aBoundingCutBuilder = new BRepAlgoAPI_Cut(aResult, aBoundingSolid);
 395     aBoundingCutBuilder->Build();
 396     if(!aBoundingCutBuilder->IsDone()) {
 397       return;
 398     }
 399     this->appendAlgo(std::shared_ptr<GeomAlgoAPI_MakeShape>(
 400       new GeomAlgoAPI_MakeShape(aBoundingCutBuilder)));
 401     aResult = aBoundingCutBuilder->Shape();
 402     if(aResult.ShapeType() == TopAbs_COMPOUND) {
 403       aResult = GeomAlgoAPI_DFLoader::refineResult(aResult);
 404     }
 405
 406     // Setting naming.
 407     if(aShapeTypeToExp == TopAbs_FACE || aShapeTypeToExp == TopAbs_COMPOUND) {
 408       const TopTools_ListOfShape& aBndShapes = aBoundingCutBuilder->Modified(aBoundingFace);
 409       for(TopTools_ListIteratorOfListOfShape anIt(aBndShapes); anIt.More(); anIt.Next()) {
 410         GeomShapePtr aShape(new GeomAPI_Shape());
 411         aShape->setImpl(new TopoDS_Shape(anIt.Value()));
 412         fixOrientation(aShape);
 413         isFromFaceSet ? this->addFromShape(aShape) : this->addToShape(aShape);
 414       }
 415     }
 416
 417     // Try to cut with base face. If it can not be done then keep result of cut with bounding plane.
 418     TopoDS_Shape aModifiedBaseShape;
 419     if(aShapeTypeToExp != TopAbs_FACE) {
 420       ListOfShape aList;
 421       GeomShapePtr aSh(new GeomAPI_Shape());
 422       aSh->setImpl(new TopoDS_Shape(aBaseShape));
 423       std::shared_ptr<GeomAPI_Pnt> theCenter(new GeomAPI_Pnt(aBasePlane->Location().X(),
 424                                                              aBasePlane->Location().Y(),
 425                                                              aBasePlane->Location().Z()));
 426       std::shared_ptr<GeomAPI_Dir> theNormal(new GeomAPI_Dir(aBasePlane->Axis().Direction().X(),
 427                                                              aBasePlane->Axis().Direction().Y(),
 428                                                              aBasePlane->Axis().Direction().Z()));
 429       GeomShapePtr aPln = GeomAlgoAPI_FaceBuilder::planarFace(theCenter, theNormal);
 430       aList.push_back(aSh);
 431       std::list<std::shared_ptr<GeomAPI_Pnt> >
 432         aBoundingPoints = GeomAlgoAPI_ShapeTools::getBoundingBox(aList);
 433       aSh = GeomAlgoAPI_ShapeTools::fitPlaneToBox(aPln, aBoundingPoints);
 434       aModifiedBaseShape = aSh->impl<TopoDS_Shape>();
 435     } else {
 436       aModifiedBaseShape = aBaseShape;
 437     }
 438     if(isFromFaceSet) {
 439       if(aModifiedBaseShape.ShapeType() == TopAbs_FACE) {
 440         aModifiedBaseShape.Orientation(TopAbs_REVERSED);
 441       } else {
 442         gp_Trsf aMirrorTrsf;
 443         aMirrorTrsf.SetMirror(aBasePlane->Position().Ax2());
 444         BRepBuilderAPI_Transform aMirrorTransform(aModifiedBaseShape, aMirrorTrsf, true);
 445         aModifiedBaseShape = aMirrorTransform.Shape();
 446       }
 447     }
 448
 449     // Making solid from base face.
 450     TopoDS_Shape aBaseSolid = makeSolidFromShape(aModifiedBaseShape);
 451
 452     // Rotating base face to the specified angle.
 453     gp_Trsf aBaseTrsf;
 454     double aBaseRotAngle = isFromFaceSet ? theToAngle : -theFromAngle;
 455     aBaseTrsf.SetRotation(anAxis, aBaseRotAngle / 180.0 * M_PI);
 456     BRepBuilderAPI_Transform aBaseTransform(aBaseSolid, aBaseTrsf, true);
 457     aBaseSolid = aBaseTransform.Shape();
 458
 459     // Cutting revolution with base.
 460     BRepAlgoAPI_Cut* aBaseCutBuilder = new BRepAlgoAPI_Cut(aResult, aBaseSolid);
 461     aBaseCutBuilder->Build();
 462     if(aBaseCutBuilder->IsDone()) {
 463       TopoDS_Shape aCutResult = aBaseCutBuilder->Shape();
 464       TopoDS_Iterator aCheckIt(aCutResult);
 465       if(aCheckIt.More()) {
 466         this->appendAlgo(std::shared_ptr<GeomAlgoAPI_MakeShape>(
 467           new GeomAlgoAPI_MakeShape(aBaseCutBuilder)));
 468         aResult = aCutResult;
 469         if(aResult.ShapeType() == TopAbs_COMPOUND) {
 470           aResult = GeomAlgoAPI_DFLoader::refineResult(aResult);
 471         }
 472         if(aShapeTypeToExp == TopAbs_FACE || aShapeTypeToExp == TopAbs_COMPOUND) {
 473           const TopTools_ListOfShape& aBsShapes = aBaseCutBuilder->Modified(aBoundingFace);
 474           for(TopTools_ListIteratorOfListOfShape anIt(aBsShapes); anIt.More(); anIt.Next()) {
 475             GeomShapePtr aShape(new GeomAPI_Shape());
 476             aShape->setImpl(new TopoDS_Shape(anIt.Value()));
 477             fixOrientation(aShape);
 478             isFromFaceSet ? this->addToShape(aShape) : this->addFromShape(aShape);
 479           }
 480         }
 481       }
 482     }
 483
 484     if(aResult.ShapeType() == TopAbs_COMPOUND) {
 485       std::shared_ptr<GeomAPI_Shape> aGeomShape(new GeomAPI_Shape);
 486       aGeomShape->setImpl(new TopoDS_Shape(aResult));
 487       ListOfShape aCompSolids, aFreeSolids;
 488       aGeomShape = GeomAlgoAPI_ShapeTools::combineShapes(aGeomShape,
 489                                                          GeomAPI_Shape::COMPSOLID,
 490                                                          aCompSolids,
 491                                                          aFreeSolids);
 492       aResult = aGeomShape->impl<TopoDS_Shape>();
 493     }
 494
 495     // If after cut we got more than one solids then take
 496     // closest to the center of mass of the base face.
 497     aResult = findClosest(aResult, aBaseCentre);
 498
 499     // Setting naming.
 500     if(aShapeTypeToExp == TopAbs_COMPOUND) {
 501       storeGenerationHistory(this, aResult, TopAbs_EDGE,
 502         aRotatedBoundingFace, aModifiedBaseShape, isFromFaceSet);
 503       storeGenerationHistory(this, aResult, TopAbs_FACE,
 504         aRotatedBoundingFace, aModifiedBaseShape, isFromFaceSet);
 505     } else {
 506       storeGenerationHistory(this, aResult, aShapeTypeToExp,
 507         aRotatedBoundingFace, aModifiedBaseShape, isFromFaceSet);
 508     }
 509   }
 510
 511   // Setting result.
 512   if(aResult.IsNull()) {
 513     return;
 514   }
 515   aResult = GeomAlgoAPI_DFLoader::refineResult(aResult);
 516   GeomShapePtr aShape(new GeomAPI_Shape());
 517   aShape->setImpl(new TopoDS_Shape(aResult));
 518   this->setShape(aShape);
 519   this->setDone(true);
 520 }
 521
 522 //==================================================================================================
 523 TopoDS_Face makeFaceFromPlane(gp_Pln& thePlane, const gp_Pnt& thePoint)
 524 {
 525   if(!thePlane.Contains(thePoint, Precision::Confusion())) {
 526     gp_XYZ aVec = thePoint.XYZ() - thePlane.Location().XYZ();
 527     double aSign = aVec * thePlane.Axis().Direction().XYZ();
 528     if(aSign < 0) thePlane.SetAxis(thePlane.Axis().Reversed());
 529   }
 530
 531   BRepBuilderAPI_MakeFace aMakeFace(thePlane);
 532   TopoDS_Face aResultFace = TopoDS::Face(aMakeFace.Shape());
 533
 534   return aResultFace;
 535 }
 536
 537 //==================================================================================================
 538 TopoDS_Solid makeSolidFromShape(const TopoDS_Shape& theShape)
 539 {
 540   TopoDS_Shell aShell;
 541   TopoDS_Solid aSolid;
 542
 543   BRep_Builder aBoundingBuilder;
 544   if(theShape.ShapeType() == TopAbs_SHELL) {
 545     aShell = TopoDS::Shell(theShape);
 546   } else {
 547     aBoundingBuilder.MakeShell(aShell);
 548     aBoundingBuilder.Add(aShell, theShape);
 549   }
 550   aBoundingBuilder.MakeSolid(aSolid);
 551   aBoundingBuilder.Add(aSolid, aShell);
 552
 553   return aSolid;
 554 }
 555
 556 //================================================================================================
 557 gp_Pnt centreOfMass(const TopoDS_Shape& theShape)
 558 {
 559   TopAbs_ShapeEnum aShType = theShape.ShapeType();
 560   GProp_GProps aGProps;
 561
 562   if(aShType == TopAbs_EDGE || aShType == TopAbs_WIRE) {
 563     BRepGProp::LinearProperties(theShape, aGProps);
 564   } else if(aShType == TopAbs_FACE || aShType == TopAbs_SHELL) {
 565     BRepGProp::SurfaceProperties(theShape, aGProps);
 566   } else if(aShType == TopAbs_SOLID || aShType == TopAbs_COMPSOLID) {
 567     BRepGProp::VolumeProperties(theShape, aGProps);
 568   }
 569
 570   return aGProps.CentreOfMass();
 571 }
 572
 573 //================================================================================================
 574 TopoDS_Shape findClosest(const TopoDS_Shape& theShape, const gp_Pnt& thePoint)
 575 {
 576   TopoDS_Shape aResult = theShape;
 577
 578   if(theShape.ShapeType() == TopAbs_COMPOUND) {
 579     double aMinDistance = Precision::Infinite();
 580     double aCurDistance;
 581     gp_Pnt aCentr;
 582     for (TopoDS_Iterator anItr(theShape); anItr.More(); anItr.Next()) {
 583       TopoDS_Shape aValue = anItr.Value();
 584       aCentr = centreOfMass(aValue);
 585       aCurDistance = aCentr.Distance(thePoint);
 586
 587       if(aCurDistance < aMinDistance) {
 588         aMinDistance = aCurDistance;
 589         aResult = aValue;
 590       }
 591     }
 592   }
 593
 594   return aResult;
 595 }
 596
 597 //================================================================================================
 598 void storeGenerationHistory(GeomAlgoAPI_Revolution* theRevolutionAlgo,
 599                             const TopoDS_Shape& theBase,
 600                             const TopAbs_ShapeEnum theType,
 601                             BRepPrimAPI_MakeRevol* theRevolBuilder)
 602 {
 603   for(TopExp_Explorer anExp(theBase, theType); anExp.More(); anExp.Next()) {
 604     const TopoDS_Shape& aShape = anExp.Current();
 605     GeomShapePtr aFromShape(new GeomAPI_Shape), aToShape(new GeomAPI_Shape);
 606     aFromShape->setImpl(new TopoDS_Shape(theRevolBuilder->FirstShape(aShape)));
 607     aToShape->setImpl(new TopoDS_Shape(theRevolBuilder->LastShape(aShape)));
 608     theRevolutionAlgo->fixOrientation(aFromShape);
 609     theRevolutionAlgo->fixOrientation(aToShape);
 610     theRevolutionAlgo->addFromShape(aFromShape);
 611     theRevolutionAlgo->addToShape(aToShape);
 612   }
 613 }
 614
 615 //================================================================================================
 616 void storeGenerationHistory(GeomAlgoAPI_Revolution* theRevolutionAlgo,
 617                             const TopoDS_Shape& theResult,
 618                             const TopAbs_ShapeEnum theType,
 619                             const TopoDS_Shape& theToFace,
 620                             const TopoDS_Shape& theFromFace)
 621 {
 622   for(TopExp_Explorer anExp(theResult, theType); anExp.More (); anExp.Next ()) {
 623     const TopoDS_Shape& aShape = anExp.Current();
 624     GeomShapePtr aGeomSh(new GeomAPI_Shape());
 625     if(theType == TopAbs_VERTEX) {
 626       gp_Pnt aPnt = BRep_Tool::Pnt(TopoDS::Vertex(aShape));
 627       IntTools_Context anIntTools;
 628       if(anIntTools.IsValidPointForFace(aPnt, TopoDS::Face(theToFace),
 629           Precision::Confusion()) == Standard_True) {
 630         aGeomSh->setImpl(new TopoDS_Shape(aShape));
 631         theRevolutionAlgo->fixOrientation(aGeomSh);
 632         theRevolutionAlgo->addToShape(aGeomSh);
 633       }
 634       if(anIntTools.IsValidPointForFace(aPnt, TopoDS::Face(theFromFace),
 635           Precision::Confusion()) == Standard_True) {
 636         aGeomSh->setImpl(new TopoDS_Shape(aShape));
 637         theRevolutionAlgo->fixOrientation(aGeomSh);
 638         theRevolutionAlgo->addFromShape(aGeomSh);
 639       }
 640     } else if(theType == TopAbs_EDGE) {
 641       TopoDS_Edge anEdge = TopoDS::Edge(aShape);
 642       BRepLib_CheckCurveOnSurface anEdgeCheck(anEdge, TopoDS::Face(theToFace));
 643       anEdgeCheck.Perform();
 644       if(anEdgeCheck.MaxDistance() < Precision::Confusion()) {
 645         aGeomSh->setImpl(new TopoDS_Shape(aShape));
 646         theRevolutionAlgo->fixOrientation(aGeomSh);
 647         theRevolutionAlgo->addToShape(aGeomSh);
 648       }
 649       anEdgeCheck.Init(anEdge, TopoDS::Face(theFromFace));
 650       anEdgeCheck.Perform();
 651       if(anEdgeCheck.MaxDistance() < Precision::Confusion()) {
 652         aGeomSh->setImpl(new TopoDS_Shape(aShape));
 653         theRevolutionAlgo->fixOrientation(aGeomSh);
 654         theRevolutionAlgo->addFromShape(aGeomSh);
 655       }
 656     } else {
 657       Handle(Geom_Surface) aFaceSurface = BRep_Tool::Surface(TopoDS::Face(aShape));
 658       Handle(Geom_Surface) aFromSurface = BRep_Tool::Surface(TopoDS::Face(theFromFace));
 659       Handle(Geom_Surface) aToSurface = BRep_Tool::Surface(TopoDS::Face(theToFace));
 660       if(aFaceSurface == aFromSurface) {
 661         aGeomSh->setImpl(new TopoDS_Shape(aShape));
 662         theRevolutionAlgo->fixOrientation(aGeomSh);
 663         theRevolutionAlgo->addFromShape(aGeomSh);
 664       }
 665       if(aFaceSurface == aToSurface) {
 666         aGeomSh->setImpl(new TopoDS_Shape(aShape));
 667         theRevolutionAlgo->fixOrientation(aGeomSh);
 668         theRevolutionAlgo->addToShape(aGeomSh);
 669       }
 670     }
 671   }
 672 }
 673
 674 void storeGenerationHistory(GeomAlgoAPI_Revolution* theRevolutionAlgo,
 675                             const TopoDS_Shape& theResult,
 676                             const TopAbs_ShapeEnum theType,
 677                             const TopoDS_Shape& theRotatedBoundingFace,
 678                             const TopoDS_Shape& theModifiedBaseShape,
 679                             const bool theIsFromFaceSet)
 680 {
 681   for(TopExp_Explorer anExp(theResult, theType); anExp.More (); anExp.Next ()) {
 682     const TopoDS_Shape& aShape = anExp.Current();
 683     GeomShapePtr aGeomSh(new GeomAPI_Shape());
 684     if(theType == TopAbs_VERTEX) {
 685       gp_Pnt aPnt = BRep_Tool::Pnt(TopoDS::Vertex(aShape));
 686       IntTools_Context anIntTools;
 687       if(anIntTools.IsValidPointForFace(aPnt, TopoDS::Face(theRotatedBoundingFace),
 688           Precision::Confusion()) == Standard_True) {
 689         aGeomSh->setImpl(new TopoDS_Shape(aShape));
 690         theRevolutionAlgo->fixOrientation(aGeomSh);
 691         theIsFromFaceSet ? theRevolutionAlgo->addFromShape(aGeomSh) :
 692                            theRevolutionAlgo->addToShape(aGeomSh);
 693       }
 694       if(anIntTools.IsValidPointForFace(aPnt, TopoDS::Face(theModifiedBaseShape),
 695          Precision::Confusion()) == Standard_True) {
 696         aGeomSh->setImpl(new TopoDS_Shape(aShape));
 697         theRevolutionAlgo->fixOrientation(aGeomSh);
 698         theIsFromFaceSet ? theRevolutionAlgo->addToShape(aGeomSh) :
 699                            theRevolutionAlgo->addFromShape(aGeomSh);
 700       }
 701     } else if(theType == TopAbs_EDGE) {
 702       TopoDS_Edge anEdge = TopoDS::Edge(aShape);
 703       BRepLib_CheckCurveOnSurface anEdgeCheck(anEdge, TopoDS::Face(theRotatedBoundingFace));
 704       anEdgeCheck.Perform();
 705       if(anEdgeCheck.MaxDistance() < Precision::Confusion()) {
 706         aGeomSh->setImpl(new TopoDS_Shape(aShape));
 707         theRevolutionAlgo->fixOrientation(aGeomSh);
 708         theIsFromFaceSet ? theRevolutionAlgo->addFromShape(aGeomSh) :
 709                            theRevolutionAlgo->addToShape(aGeomSh);
 710       }
 711       anEdgeCheck.Init(anEdge, TopoDS::Face(theModifiedBaseShape));
 712       anEdgeCheck.Perform();
 713       if(anEdgeCheck.MaxDistance() < Precision::Confusion()) {
 714         aGeomSh->setImpl(new TopoDS_Shape(aShape));
 715         theRevolutionAlgo->fixOrientation(aGeomSh);
 716         theIsFromFaceSet ? theRevolutionAlgo->addToShape(aGeomSh) :
 717                            theRevolutionAlgo->addFromShape(aGeomSh);
 718       }
 719     } else {
 720       Handle(Geom_Surface) aFaceSurface = BRep_Tool::Surface(TopoDS::Face(aShape));
 721       Handle(Geom_Surface) aBoundingSurface =
 722         BRep_Tool::Surface(TopoDS::Face(theRotatedBoundingFace));
 723       Handle(Geom_Surface) aBaseSurface = BRep_Tool::Surface(TopoDS::Face(theModifiedBaseShape));
 724       if(aFaceSurface == aBoundingSurface) {
 725         aGeomSh->setImpl(new TopoDS_Shape(aShape));
 726         theRevolutionAlgo->fixOrientation(aGeomSh);
 727         theIsFromFaceSet ? theRevolutionAlgo->addFromShape(aGeomSh) :
 728                            theRevolutionAlgo->addToShape(aGeomSh);
 729       }
 730       if(aFaceSurface == aBaseSurface) {
 731         aGeomSh->setImpl(new TopoDS_Shape(aShape));
 732         theRevolutionAlgo->fixOrientation(aGeomSh);
 733         theIsFromFaceSet ? theRevolutionAlgo->addToShape(aGeomSh) :
 734                            theRevolutionAlgo->addFromShape(aGeomSh);
 735       }
 736     }
 737   }
 738 }