src/GeomAPI/GeomAPI_Shape.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 "GeomAPI_Shape.h"
  22
  23 #include <BRep_Tool.hxx>
  24 #include <BRepAlgoAPI_Section.hxx>
  25 #include <BRepBndLib.hxx>
  26 #include <BRepBuilderAPI_FindPlane.hxx>
  27 #include <BRepExtrema_DistShapeShape.hxx>
  28 #include <BRepTools.hxx>
  29 #include <Bnd_Box.hxx>
  30 #include <Geom_Circle.hxx>
  31 #include <Geom_Conic.hxx>
  32 #include <Geom_Curve.hxx>
  33 #include <Geom_Ellipse.hxx>
  34 #include <Geom_Hyperbola.hxx>
  35 #include <Geom_Line.hxx>
  36 #include <Geom_Parabola.hxx>
  37 #include <Geom_Plane.hxx>
  38 #include <Geom_RectangularTrimmedSurface.hxx>
  39 #include <Geom_TrimmedCurve.hxx>
  40 #include <TopExp_Explorer.hxx>
  41 #include <TopoDS.hxx>
  42 #include <TopoDS_Iterator.hxx>
  43 #include <TopoDS_Shape.hxx>
  44 #include <NCollection_List.hxx>
  45
  46 #include <sstream>
  47 #include <algorithm> // for std::transform
  48
  49 #include <BRepTools.hxx>
  50
  51 #define MY_SHAPE implPtr<TopoDS_Shape>()
  52
  53 GeomAPI_Shape::GeomAPI_Shape()
  54     : GeomAPI_Interface(new TopoDS_Shape())
  55 {
  56 }
  57
  58 std::shared_ptr<GeomAPI_Shape> GeomAPI_Shape::emptyCopied() const
  59 {
  60   GeomShapePtr aShape(new GeomAPI_Shape());
  61   aShape->setImpl(new TopoDS_Shape(MY_SHAPE->EmptyCopied()));
  62   return aShape;
  63 }
  64
  65 bool GeomAPI_Shape::isNull() const
  66 {
  67   return MY_SHAPE->IsNull() == Standard_True;
  68 }
  69
  70 bool GeomAPI_Shape::isEqual(const std::shared_ptr<GeomAPI_Shape> theShape) const
  71 {
  72   if (!theShape.get())
  73     return false;
  74   if (isNull())
  75     return theShape->isNull();
  76   if (theShape->isNull())
  77     return false;
  78
  79   return MY_SHAPE->IsEqual(theShape->impl<TopoDS_Shape>()) == Standard_True;
  80 }
  81
  82 bool GeomAPI_Shape::isSame(const std::shared_ptr<GeomAPI_Shape> theShape) const
  83 {
  84   if (!theShape.get())
  85     return false;
  86   if (isNull())
  87     return theShape->isNull();
  88   if (theShape->isNull())
  89     return false;
  90
  91   return MY_SHAPE->IsSame(theShape->impl<TopoDS_Shape>()) == Standard_True;
  92 }
  93
  94 bool GeomAPI_Shape::isVertex() const
  95 {
  96   const TopoDS_Shape& aShape = const_cast<GeomAPI_Shape*>(this)->impl<TopoDS_Shape>();
  97   return !aShape.IsNull() && aShape.ShapeType() == TopAbs_VERTEX;
  98 }
  99
 100 bool GeomAPI_Shape::isEdge() const
 101 {
 102   const TopoDS_Shape& aShape = const_cast<GeomAPI_Shape*>(this)->impl<TopoDS_Shape>();
 103   return !aShape.IsNull() && aShape.ShapeType() == TopAbs_EDGE;
 104 }
 105
 106 bool GeomAPI_Shape::isWire() const
 107 {
 108   const TopoDS_Shape& aShape = const_cast<GeomAPI_Shape*>(this)->impl<TopoDS_Shape>();
 109   return !aShape.IsNull() && aShape.ShapeType() == TopAbs_WIRE;
 110 }
 111
 112 bool GeomAPI_Shape::isFace() const
 113 {
 114   const TopoDS_Shape& aShape = const_cast<GeomAPI_Shape*>(this)->impl<TopoDS_Shape>();
 115   return !aShape.IsNull() && aShape.ShapeType() == TopAbs_FACE;
 116 }
 117
 118 bool GeomAPI_Shape::isCompound() const
 119 {
 120   const TopoDS_Shape& aShape = const_cast<GeomAPI_Shape*>(this)->impl<TopoDS_Shape>();
 121   return !aShape.IsNull() && aShape.ShapeType() == TopAbs_COMPOUND;
 122 }
 123
 124 bool GeomAPI_Shape::isCompoundOfSolids() const
 125 {
 126   const TopoDS_Shape& aShape = const_cast<GeomAPI_Shape*>(this)->impl<TopoDS_Shape>();
 127   if (aShape.IsNull() || aShape.ShapeType() != TopAbs_COMPOUND)
 128     return false;
 129   bool isAtLeastOne = false;
 130   for(TopoDS_Iterator aSubs(aShape); aSubs.More(); aSubs.Next()) {
 131     if (aSubs.Value().IsNull() || aSubs.Value().ShapeType() != TopAbs_SOLID)
 132       return false;
 133     isAtLeastOne = true;
 134   }
 135   return isAtLeastOne;
 136 }
 137
 138 // adds the nopt-compound elements recursively to the list
 139 static void addSimpleToList(const TopoDS_Shape& theShape, NCollection_List<TopoDS_Shape>& theList)
 140 {
 141   if (!theShape.IsNull()) {
 142     if (theShape.ShapeType() == TopAbs_COMPOUND) {
 143       for(TopoDS_Iterator aSubs(theShape); aSubs.More(); aSubs.Next()) {
 144         addSimpleToList(aSubs.Value(), theList);
 145       }
 146     } else {
 147       theList.Append(theShape);
 148     }
 149   }
 150 }
 151
 152 bool GeomAPI_Shape::isConnectedTopology() const
 153 {
 154   const TopoDS_Shape& aShape = const_cast<GeomAPI_Shape*>(this)->impl<TopoDS_Shape>();
 155   if (aShape.IsNull() || aShape.ShapeType() != TopAbs_COMPOUND)
 156     return false;
 157   // list of simple elements that are not detected in connection to others
 158   NCollection_List<TopoDS_Shape> aNotConnected;
 159   addSimpleToList(aShape, aNotConnected);
 160   if (aNotConnected.IsEmpty()) // an empty compound
 161     return false;
 162
 163   // collect here the group of connected subs, starting with one first element
 164   NCollection_List<TopoDS_Shape> aNewConnected;
 165   aNewConnected.Append(aNotConnected.First());
 166   aNotConnected.RemoveFirst();
 167   // iterate until some new element become connected
 168   while(!aNewConnected.IsEmpty() && !aNotConnected.IsEmpty()) {
 169     NCollection_List<TopoDS_Shape> aNew; // very new connected to new connected
 170     NCollection_List<TopoDS_Shape>::Iterator aNotIter(aNotConnected);
 171     while(aNotIter.More()) {
 172       // optimization to avoid TopExp_Explorer double-cycle, collect all vertices in the list first
 173       NCollection_List<TopoDS_Shape> aNotVertices;
 174       for(TopExp_Explorer anExp1(aNotIter.Value(), TopAbs_VERTEX); anExp1.More(); anExp1.Next()) {
 175         aNotVertices.Append(anExp1.Current());
 176       }
 177
 178       bool aConnected =  false;
 179       NCollection_List<TopoDS_Shape>::Iterator aNewIter(aNewConnected);
 180       for(; !aConnected && aNewIter.More(); aNewIter.Next()) {
 181         // checking topological connecion of aNotIter and aNewIter
 182         // (if shapes are connected, vertices are connected for sure)
 183         TopExp_Explorer anExp2(aNewIter.Value(), TopAbs_VERTEX);
 184         for(; !aConnected && anExp2.More(); anExp2.Next()) {
 185           NCollection_List<TopoDS_Shape>::Iterator aNotIter(aNotVertices);
 186           for(; aNotIter.More(); aNotIter.Next()) {
 187             if (aNotIter.Value().IsSame(anExp2.Current())) {
 188               aConnected = true;
 189               break;
 190             }
 191           }
 192         }
 193       }
 194       if (aConnected) {
 195         aNew.Append(aNotIter.Value());
 196         aNotConnected.Remove(aNotIter);
 197       } else {
 198         aNotIter.Next();
 199       }
 200     }
 201     // remove all new connected and put to this list very new connected
 202     aNewConnected.Clear();
 203     aNewConnected.Append(aNew);
 204   }
 205   return aNotConnected.IsEmpty() == Standard_True;
 206 }
 207
 208 bool GeomAPI_Shape::isSolid() const
 209 {
 210   const TopoDS_Shape& aShape = const_cast<GeomAPI_Shape*>(this)->impl<TopoDS_Shape>();
 211   return !aShape.IsNull() && aShape.ShapeType() == TopAbs_SOLID;
 212 }
 213
 214 bool GeomAPI_Shape::isCompSolid() const
 215 {
 216   const TopoDS_Shape& aShape = const_cast<GeomAPI_Shape*>(this)->impl<TopoDS_Shape>();
 217   return !aShape.IsNull() && aShape.ShapeType() == TopAbs_COMPSOLID;
 218 }
 219
 220 bool GeomAPI_Shape::isPlanar() const
 221 {
 222   TopoDS_Shape aShape = impl<TopoDS_Shape>();
 223
 224   if(aShape.IsNull()) {
 225     return false;
 226   }
 227
 228   TopAbs_ShapeEnum aShapeType = aShape.ShapeType();
 229   if(aShapeType == TopAbs_COMPOUND) {
 230     TopoDS_Iterator anIt(aShape);
 231     int aShNum = 0;
 232     for(; anIt.More(); anIt.Next()) {
 233       ++aShNum;
 234     }
 235     if(aShNum == 1) {
 236       anIt.Initialize(aShape);
 237       aShape = anIt.Value();
 238     }
 239   }
 240
 241   aShapeType = aShape.ShapeType();
 242   if(aShapeType == TopAbs_VERTEX) {
 243     return true;
 244   } else if(aShapeType == TopAbs_FACE) {
 245     const Handle(Geom_Surface)& aSurface = BRep_Tool::Surface(TopoDS::Face(aShape));
 246     Handle(Standard_Type) aType = aSurface->DynamicType();
 247
 248     if(aType == STANDARD_TYPE(Geom_RectangularTrimmedSurface)) {
 249       Handle(Geom_RectangularTrimmedSurface) aTrimSurface =
 250         Handle(Geom_RectangularTrimmedSurface)::DownCast(aSurface);
 251       aType = aTrimSurface->BasisSurface()->DynamicType();
 252     }
 253     return (aType == STANDARD_TYPE(Geom_Plane)) == Standard_True;
 254   } else {
 255     BRepBuilderAPI_FindPlane aFindPlane(aShape);
 256     bool isFound = aFindPlane.Found() == Standard_True;
 257
 258     if(!isFound && aShapeType == TopAbs_EDGE) {
 259       Standard_Real aFirst, aLast;
 260       Handle(Geom_Curve) aCurve = BRep_Tool::Curve(TopoDS::Edge(aShape), aFirst, aLast);
 261       Handle(Standard_Type) aType = aCurve->DynamicType();
 262
 263       if(aType == STANDARD_TYPE(Geom_TrimmedCurve)) {
 264         Handle(Geom_TrimmedCurve) aTrimCurve = Handle(Geom_TrimmedCurve)::DownCast(aCurve);
 265         aType = aTrimCurve->BasisCurve()->DynamicType();
 266       }
 267
 268       if(aType == STANDARD_TYPE(Geom_Line)
 269           || aType == STANDARD_TYPE(Geom_Conic)
 270           || aType == STANDARD_TYPE(Geom_Circle)
 271           || aType == STANDARD_TYPE(Geom_Ellipse)
 272           || aType == STANDARD_TYPE(Geom_Hyperbola)
 273           || aType == STANDARD_TYPE(Geom_Parabola)) {
 274         isFound = true;
 275       }
 276     }
 277
 278     return isFound;
 279   }
 280
 281   return false;
 282 }
 283
 284 GeomAPI_Shape::ShapeType GeomAPI_Shape::shapeType() const
 285 {
 286   const TopoDS_Shape& aShape = impl<TopoDS_Shape>();
 287
 288   ShapeType aST = GeomAPI_Shape::SHAPE;
 289
 290   switch(aShape.ShapeType()) {
 291   case TopAbs_COMPOUND:
 292     aST = GeomAPI_Shape::COMPOUND;
 293     break;
 294   case TopAbs_COMPSOLID:
 295     aST = GeomAPI_Shape::COMPSOLID;
 296     break;
 297   case TopAbs_SOLID:
 298     aST = GeomAPI_Shape::SOLID;
 299     break;
 300   case TopAbs_SHELL:
 301     aST = GeomAPI_Shape::SHELL;
 302     break;
 303   case TopAbs_FACE:
 304     aST = GeomAPI_Shape::FACE;
 305     break;
 306   case TopAbs_WIRE:
 307     aST = GeomAPI_Shape::WIRE;
 308     break;
 309   case TopAbs_EDGE:
 310     aST = GeomAPI_Shape::EDGE;
 311     break;
 312   case TopAbs_VERTEX:
 313     aST = GeomAPI_Shape::VERTEX;
 314     break;
 315   case TopAbs_SHAPE:
 316     aST = GeomAPI_Shape::SHAPE;
 317     break;
 318   }
 319
 320   return aST;
 321 }
 322
 323 GeomAPI_Shape::ShapeType GeomAPI_Shape::shapeTypeByStr(std::string theType)
 324 {
 325   std::transform(theType.begin(), theType.end(), theType.begin(), ::toupper);
 326   if (theType == "COMPOUND")
 327     return COMPOUND;
 328   if (theType == "COMPSOLID")
 329     return COMPSOLID;
 330   if (theType == "SOLID")
 331     return SOLID;
 332   if (theType == "SHELL")
 333     return SHELL;
 334   if (theType == "FACE")
 335     return FACE;
 336   if (theType == "WIRE")
 337     return WIRE;
 338   if (theType == "EDGE")
 339     return EDGE;
 340   if (theType == "VERTEX")
 341     return VERTEX;
 342   return SHAPE; // default
 343 }
 344
 345 std::string GeomAPI_Shape::shapeTypeStr() const
 346 {
 347   ShapeType aShapeType = shapeType();
 348   std::string aShapeTypeStr;
 349
 350   switch(aShapeType) {
 351     case COMPOUND: {
 352       aShapeTypeStr = "COMPOUND";
 353       break;
 354     }
 355     case COMPSOLID: {
 356       aShapeTypeStr = "COMPSOLID";
 357       break;
 358     }
 359     case SOLID: {
 360       aShapeTypeStr = "SOLID";
 361       break;
 362     }
 363     case SHELL: {
 364       aShapeTypeStr = "SHELL";
 365       break;
 366     }
 367     case FACE: {
 368       aShapeTypeStr = "FACE";
 369       break;
 370     }
 371     case WIRE: {
 372       aShapeTypeStr = "WIRE";
 373       break;
 374     }
 375     case EDGE: {
 376       aShapeTypeStr = "EDGE";
 377       break;
 378     }
 379     case VERTEX: {
 380       aShapeTypeStr = "VERTEX";
 381       break;
 382     }
 383     case SHAPE: {
 384       aShapeTypeStr = "SHAPE";
 385       break;
 386     }
 387   }
 388
 389   return aShapeTypeStr;
 390 }
 391
 392 GeomAPI_Shape::Orientation GeomAPI_Shape::orientation() const
 393 {
 394   TopAbs_Orientation anOrientation = MY_SHAPE->Orientation();
 395
 396   switch(anOrientation) {
 397     case TopAbs_FORWARD:  return FORWARD;
 398     case TopAbs_REVERSED: return REVERSED;
 399     case TopAbs_INTERNAL: return INTERNAL;
 400     case TopAbs_EXTERNAL: return EXTERNAL;
 401     default:              return FORWARD;
 402   }
 403 }
 404
 405 void GeomAPI_Shape::setOrientation(const GeomAPI_Shape::Orientation theOrientation)
 406 {
 407   TopAbs_Orientation anOrientation = MY_SHAPE->Orientation();
 408
 409   switch(theOrientation) {
 410     case FORWARD:  MY_SHAPE->Orientation(TopAbs_FORWARD);  break;
 411     case REVERSED: MY_SHAPE->Orientation(TopAbs_REVERSED); break;
 412     case INTERNAL: MY_SHAPE->Orientation(TopAbs_INTERNAL); break;
 413     case EXTERNAL: MY_SHAPE->Orientation(TopAbs_EXTERNAL); break;
 414   }
 415 }
 416
 417 void GeomAPI_Shape::reverse()
 418 {
 419   MY_SHAPE->Reverse();
 420 }
 421
 422 bool GeomAPI_Shape::isSubShape(const std::shared_ptr<GeomAPI_Shape> theShape,
 423                                const bool theCheckOrientation) const
 424 {
 425   if(!theShape.get()) {
 426     return false;
 427   }
 428
 429   const TopoDS_Shape& aShapeToSearch = theShape->impl<TopoDS_Shape>();
 430   if(aShapeToSearch.IsNull()) {
 431     return false;
 432   }
 433
 434   for(TopExp_Explorer anExp(*MY_SHAPE, aShapeToSearch.ShapeType()); anExp.More(); anExp.Next()) {
 435     if(theCheckOrientation ?
 436        aShapeToSearch.IsEqual(anExp.Current()) : aShapeToSearch.IsSame(anExp.Current())) {
 437       return true;
 438     }
 439   }
 440
 441   return false;
 442 }
 443
 444 bool GeomAPI_Shape::computeSize(double& theXmin, double& theYmin, double& theZmin,
 445                                 double& theXmax, double& theYmax, double& theZmax) const
 446 {
 447   const TopoDS_Shape& aShape = const_cast<GeomAPI_Shape*>(this)->impl<TopoDS_Shape>();
 448   if (aShape.IsNull())
 449     return false;
 450   Bnd_Box aBndBox;
 451   BRepBndLib::Add(aShape, aBndBox);
 452   aBndBox.Get(theXmin, theYmin, theZmin, theXmax, theYmax, theZmax);
 453   return true;
 454 }
 455
 456 std::string GeomAPI_Shape::getShapeStream() const
 457 {
 458   std::ostringstream aStream;
 459   const TopoDS_Shape& aShape = const_cast<GeomAPI_Shape*>(this)->impl<TopoDS_Shape>();
 460   BRepTools::Write(aShape, aStream);
 461   return aStream.str();
 462 }
 463
 464 GeomShapePtr GeomAPI_Shape::intersect(const GeomShapePtr theShape) const
 465 {
 466   const TopoDS_Shape& aShape1 = const_cast<GeomAPI_Shape*>(this)->impl<TopoDS_Shape>();
 467   const TopoDS_Shape& aShape2 = theShape->impl<TopoDS_Shape>();
 468
 469   BRepAlgoAPI_Section aCommon(aShape1, aShape2);
 470   if (!aCommon.IsDone())
 471     return GeomShapePtr();
 472
 473   TopoDS_Shape aResult = aCommon.Shape();
 474   if (aResult.ShapeType() == TopAbs_COMPOUND) {
 475     NCollection_List<TopoDS_Shape> aSubs;
 476     addSimpleToList(aResult, aSubs);
 477     if(aSubs.Size() == 1) {
 478       aResult = aSubs.First();
 479     } else if(aSubs.Size() == 0) {
 480       return GeomShapePtr();
 481     }
 482   }
 483
 484   GeomShapePtr aResShape(new GeomAPI_Shape);
 485   aResShape->setImpl(new TopoDS_Shape(aResult));
 486   return aResShape;
 487 }
 488
 489 bool GeomAPI_Shape::isIntersect(const GeomShapePtr theShape) const
 490 {
 491   if(!theShape.get()) {
 492     return false;
 493   }
 494
 495   const TopoDS_Shape& aShape1 = const_cast<GeomAPI_Shape*>(this)->impl<TopoDS_Shape>();
 496   const TopoDS_Shape& aShape2 = theShape->impl<TopoDS_Shape>();
 497
 498   BRepExtrema_DistShapeShape aDist(aShape1, aShape2);
 499   aDist.Perform();
 500   if(aDist.IsDone() && aDist.Value() < Precision::Confusion()) {
 501     return true;
 502   }
 503
 504   return false;
 505 }
 506
 507 void GeomAPI_Shape::translate(const std::shared_ptr<GeomAPI_Dir> theDir, const double theOffset)
 508 {
 509   gp_Dir aDir = theDir->impl<gp_Dir>();
 510   gp_Vec aTrsfVec(aDir.XYZ() * theOffset);
 511   gp_Trsf aTranslation;
 512   aTranslation.SetTranslation(aTrsfVec);
 513   TopoDS_Shape aResult = MY_SHAPE->Moved(aTranslation);
 514   setImpl(new TopoDS_Shape(aResult));
 515 }