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 GeomAPI_Shape::ShapeType GeomAPI_Shape::typeOfCompoundShapes() const
 139 {
 140   const TopoDS_Shape& aShape = const_cast<GeomAPI_Shape*>(this)->impl<TopoDS_Shape>();
 141   if (aShape.IsNull() || aShape.ShapeType() != TopAbs_COMPOUND)
 142     return SHAPE;
 143   int aType = -1;
 144   for(TopoDS_Iterator aSubs(aShape); aSubs.More(); aSubs.Next()) {
 145     if (!aSubs.Value().IsNull()) {
 146       if (aType == -1)
 147         aType = aSubs.Value().ShapeType();
 148       else if (aSubs.Value().ShapeType() != aType)
 149         return SHAPE;
 150     }
 151   }
 152   return (GeomAPI_Shape::ShapeType) aType;
 153 }
 154
 155 // adds the nopt-compound elements recursively to the list
 156 static void addSimpleToList(const TopoDS_Shape& theShape, NCollection_List<TopoDS_Shape>& theList)
 157 {
 158   if (!theShape.IsNull()) {
 159     if (theShape.ShapeType() == TopAbs_COMPOUND) {
 160       for(TopoDS_Iterator aSubs(theShape); aSubs.More(); aSubs.Next()) {
 161         addSimpleToList(aSubs.Value(), theList);
 162       }
 163     } else {
 164       theList.Append(theShape);
 165     }
 166   }
 167 }
 168
 169 bool GeomAPI_Shape::isConnectedTopology() const
 170 {
 171   const TopoDS_Shape& aShape = const_cast<GeomAPI_Shape*>(this)->impl<TopoDS_Shape>();
 172   if (aShape.IsNull() || aShape.ShapeType() != TopAbs_COMPOUND)
 173     return false;
 174   // list of simple elements that are not detected in connection to others
 175   NCollection_List<TopoDS_Shape> aNotConnected;
 176   addSimpleToList(aShape, aNotConnected);
 177   if (aNotConnected.IsEmpty()) // an empty compound
 178     return false;
 179
 180   // collect here the group of connected subs, starting with one first element
 181   NCollection_List<TopoDS_Shape> aNewConnected;
 182   aNewConnected.Append(aNotConnected.First());
 183   aNotConnected.RemoveFirst();
 184   // iterate until some new element become connected
 185   while(!aNewConnected.IsEmpty() && !aNotConnected.IsEmpty()) {
 186     NCollection_List<TopoDS_Shape> aNew; // very new connected to new connected
 187     NCollection_List<TopoDS_Shape>::Iterator aNotIter(aNotConnected);
 188     while(aNotIter.More()) {
 189       // optimization to avoid TopExp_Explorer double-cycle, collect all vertices in the list first
 190       NCollection_List<TopoDS_Shape> aNotVertices;
 191       for(TopExp_Explorer anExp1(aNotIter.Value(), TopAbs_VERTEX); anExp1.More(); anExp1.Next()) {
 192         aNotVertices.Append(anExp1.Current());
 193       }
 194
 195       bool aConnected =  false;
 196       NCollection_List<TopoDS_Shape>::Iterator aNewIter(aNewConnected);
 197       for(; !aConnected && aNewIter.More(); aNewIter.Next()) {
 198         // checking topological connecion of aNotIter and aNewIter
 199         // (if shapes are connected, vertices are connected for sure)
 200         TopExp_Explorer anExp2(aNewIter.Value(), TopAbs_VERTEX);
 201         for(; !aConnected && anExp2.More(); anExp2.Next()) {
 202           NCollection_List<TopoDS_Shape>::Iterator aNotIter(aNotVertices);
 203           for(; aNotIter.More(); aNotIter.Next()) {
 204             if (aNotIter.Value().IsSame(anExp2.Current())) {
 205               aConnected = true;
 206               break;
 207             }
 208           }
 209         }
 210       }
 211       if (aConnected) {
 212         aNew.Append(aNotIter.Value());
 213         aNotConnected.Remove(aNotIter);
 214       } else {
 215         aNotIter.Next();
 216       }
 217     }
 218     // remove all new connected and put to this list very new connected
 219     aNewConnected.Clear();
 220     aNewConnected.Append(aNew);
 221   }
 222   return aNotConnected.IsEmpty() == Standard_True;
 223 }
 224
 225 bool GeomAPI_Shape::isSolid() const
 226 {
 227   const TopoDS_Shape& aShape = const_cast<GeomAPI_Shape*>(this)->impl<TopoDS_Shape>();
 228   return !aShape.IsNull() && aShape.ShapeType() == TopAbs_SOLID;
 229 }
 230
 231 bool GeomAPI_Shape::isCompSolid() const
 232 {
 233   const TopoDS_Shape& aShape = const_cast<GeomAPI_Shape*>(this)->impl<TopoDS_Shape>();
 234   return !aShape.IsNull() && aShape.ShapeType() == TopAbs_COMPSOLID;
 235 }
 236
 237 bool GeomAPI_Shape::isPlanar() const
 238 {
 239   TopoDS_Shape aShape = impl<TopoDS_Shape>();
 240
 241   if(aShape.IsNull()) {
 242     return false;
 243   }
 244
 245   TopAbs_ShapeEnum aShapeType = aShape.ShapeType();
 246   if(aShapeType == TopAbs_COMPOUND) {
 247     TopoDS_Iterator anIt(aShape);
 248     int aShNum = 0;
 249     for(; anIt.More(); anIt.Next()) {
 250       ++aShNum;
 251     }
 252     if(aShNum == 1) {
 253       anIt.Initialize(aShape);
 254       aShape = anIt.Value();
 255     }
 256   }
 257
 258   aShapeType = aShape.ShapeType();
 259   if(aShapeType == TopAbs_VERTEX) {
 260     return true;
 261   } else if(aShapeType == TopAbs_FACE) {
 262     const Handle(Geom_Surface)& aSurface = BRep_Tool::Surface(TopoDS::Face(aShape));
 263     Handle(Standard_Type) aType = aSurface->DynamicType();
 264
 265     if(aType == STANDARD_TYPE(Geom_RectangularTrimmedSurface)) {
 266       Handle(Geom_RectangularTrimmedSurface) aTrimSurface =
 267         Handle(Geom_RectangularTrimmedSurface)::DownCast(aSurface);
 268       aType = aTrimSurface->BasisSurface()->DynamicType();
 269     }
 270     return (aType == STANDARD_TYPE(Geom_Plane)) == Standard_True;
 271   } else {
 272     BRepBuilderAPI_FindPlane aFindPlane(aShape);
 273     bool isFound = aFindPlane.Found() == Standard_True;
 274
 275     if(!isFound && aShapeType == TopAbs_EDGE) {
 276       Standard_Real aFirst, aLast;
 277       Handle(Geom_Curve) aCurve = BRep_Tool::Curve(TopoDS::Edge(aShape), aFirst, aLast);
 278       Handle(Standard_Type) aType = aCurve->DynamicType();
 279
 280       if(aType == STANDARD_TYPE(Geom_TrimmedCurve)) {
 281         Handle(Geom_TrimmedCurve) aTrimCurve = Handle(Geom_TrimmedCurve)::DownCast(aCurve);
 282         aType = aTrimCurve->BasisCurve()->DynamicType();
 283       }
 284
 285       if(aType == STANDARD_TYPE(Geom_Line)
 286           || aType == STANDARD_TYPE(Geom_Conic)
 287           || aType == STANDARD_TYPE(Geom_Circle)
 288           || aType == STANDARD_TYPE(Geom_Ellipse)
 289           || aType == STANDARD_TYPE(Geom_Hyperbola)
 290           || aType == STANDARD_TYPE(Geom_Parabola)) {
 291         isFound = true;
 292       }
 293     }
 294
 295     return isFound;
 296   }
 297
 298   return false;
 299 }
 300
 301 GeomAPI_Shape::ShapeType GeomAPI_Shape::shapeType() const
 302 {
 303   const TopoDS_Shape& aShape = impl<TopoDS_Shape>();
 304
 305   ShapeType aST = GeomAPI_Shape::SHAPE;
 306
 307   switch(aShape.ShapeType()) {
 308   case TopAbs_COMPOUND:
 309     aST = GeomAPI_Shape::COMPOUND;
 310     break;
 311   case TopAbs_COMPSOLID:
 312     aST = GeomAPI_Shape::COMPSOLID;
 313     break;
 314   case TopAbs_SOLID:
 315     aST = GeomAPI_Shape::SOLID;
 316     break;
 317   case TopAbs_SHELL:
 318     aST = GeomAPI_Shape::SHELL;
 319     break;
 320   case TopAbs_FACE:
 321     aST = GeomAPI_Shape::FACE;
 322     break;
 323   case TopAbs_WIRE:
 324     aST = GeomAPI_Shape::WIRE;
 325     break;
 326   case TopAbs_EDGE:
 327     aST = GeomAPI_Shape::EDGE;
 328     break;
 329   case TopAbs_VERTEX:
 330     aST = GeomAPI_Shape::VERTEX;
 331     break;
 332   case TopAbs_SHAPE:
 333     aST = GeomAPI_Shape::SHAPE;
 334     break;
 335   }
 336
 337   return aST;
 338 }
 339
 340 GeomAPI_Shape::ShapeType GeomAPI_Shape::shapeTypeByStr(std::string theType)
 341 {
 342   std::transform(theType.begin(), theType.end(), theType.begin(), ::toupper);
 343   if (theType == "COMPOUND")
 344     return COMPOUND;
 345   if (theType == "COMPSOLID")
 346     return COMPSOLID;
 347   if (theType == "SOLID")
 348     return SOLID;
 349   if (theType == "SHELL")
 350     return SHELL;
 351   if (theType == "FACE")
 352     return FACE;
 353   if (theType == "WIRE")
 354     return WIRE;
 355   if (theType == "EDGE")
 356     return EDGE;
 357   if (theType == "VERTEX")
 358     return VERTEX;
 359   return SHAPE; // default
 360 }
 361
 362 std::string GeomAPI_Shape::shapeTypeStr() const
 363 {
 364   ShapeType aShapeType = shapeType();
 365   std::string aShapeTypeStr;
 366
 367   switch(aShapeType) {
 368     case COMPOUND: {
 369       aShapeTypeStr = "COMPOUND";
 370       break;
 371     }
 372     case COMPSOLID: {
 373       aShapeTypeStr = "COMPSOLID";
 374       break;
 375     }
 376     case SOLID: {
 377       aShapeTypeStr = "SOLID";
 378       break;
 379     }
 380     case SHELL: {
 381       aShapeTypeStr = "SHELL";
 382       break;
 383     }
 384     case FACE: {
 385       aShapeTypeStr = "FACE";
 386       break;
 387     }
 388     case WIRE: {
 389       aShapeTypeStr = "WIRE";
 390       break;
 391     }
 392     case EDGE: {
 393       aShapeTypeStr = "EDGE";
 394       break;
 395     }
 396     case VERTEX: {
 397       aShapeTypeStr = "VERTEX";
 398       break;
 399     }
 400     case SHAPE: {
 401       aShapeTypeStr = "SHAPE";
 402       break;
 403     }
 404   }
 405
 406   return aShapeTypeStr;
 407 }
 408
 409 GeomAPI_Shape::Orientation GeomAPI_Shape::orientation() const
 410 {
 411   TopAbs_Orientation anOrientation = MY_SHAPE->Orientation();
 412
 413   switch(anOrientation) {
 414     case TopAbs_FORWARD:  return FORWARD;
 415     case TopAbs_REVERSED: return REVERSED;
 416     case TopAbs_INTERNAL: return INTERNAL;
 417     case TopAbs_EXTERNAL: return EXTERNAL;
 418     default:              return FORWARD;
 419   }
 420 }
 421
 422 void GeomAPI_Shape::setOrientation(const GeomAPI_Shape::Orientation theOrientation)
 423 {
 424   TopAbs_Orientation anOrientation = MY_SHAPE->Orientation();
 425
 426   switch(theOrientation) {
 427     case FORWARD:  MY_SHAPE->Orientation(TopAbs_FORWARD);  break;
 428     case REVERSED: MY_SHAPE->Orientation(TopAbs_REVERSED); break;
 429     case INTERNAL: MY_SHAPE->Orientation(TopAbs_INTERNAL); break;
 430     case EXTERNAL: MY_SHAPE->Orientation(TopAbs_EXTERNAL); break;
 431   }
 432 }
 433
 434 void GeomAPI_Shape::reverse()
 435 {
 436   MY_SHAPE->Reverse();
 437 }
 438
 439 bool GeomAPI_Shape::isSubShape(const std::shared_ptr<GeomAPI_Shape> theShape,
 440                                const bool theCheckOrientation) const
 441 {
 442   if(!theShape.get()) {
 443     return false;
 444   }
 445
 446   const TopoDS_Shape& aShapeToSearch = theShape->impl<TopoDS_Shape>();
 447   if(aShapeToSearch.IsNull()) {
 448     return false;
 449   }
 450
 451   for(TopExp_Explorer anExp(*MY_SHAPE, aShapeToSearch.ShapeType()); anExp.More(); anExp.Next()) {
 452     if(theCheckOrientation ?
 453        aShapeToSearch.IsEqual(anExp.Current()) : aShapeToSearch.IsSame(anExp.Current())) {
 454       return true;
 455     }
 456   }
 457
 458   return false;
 459 }
 460
 461 bool GeomAPI_Shape::computeSize(double& theXmin, double& theYmin, double& theZmin,
 462                                 double& theXmax, double& theYmax, double& theZmax) const
 463 {
 464   const TopoDS_Shape& aShape = const_cast<GeomAPI_Shape*>(this)->impl<TopoDS_Shape>();
 465   if (aShape.IsNull())
 466     return false;
 467   Bnd_Box aBndBox;
 468   BRepBndLib::Add(aShape, aBndBox);
 469   aBndBox.Get(theXmin, theYmin, theZmin, theXmax, theYmax, theZmax);
 470   return true;
 471 }
 472
 473 std::string GeomAPI_Shape::getShapeStream() const
 474 {
 475   std::ostringstream aStream;
 476   const TopoDS_Shape& aShape = const_cast<GeomAPI_Shape*>(this)->impl<TopoDS_Shape>();
 477   BRepTools::Write(aShape, aStream);
 478   return aStream.str();
 479 }
 480
 481 GeomShapePtr GeomAPI_Shape::intersect(const GeomShapePtr theShape) const
 482 {
 483   const TopoDS_Shape& aShape1 = const_cast<GeomAPI_Shape*>(this)->impl<TopoDS_Shape>();
 484   const TopoDS_Shape& aShape2 = theShape->impl<TopoDS_Shape>();
 485
 486   BRepAlgoAPI_Section aCommon(aShape1, aShape2);
 487   if (!aCommon.IsDone())
 488     return GeomShapePtr();
 489
 490   TopoDS_Shape aResult = aCommon.Shape();
 491   if (aResult.ShapeType() == TopAbs_COMPOUND) {
 492     NCollection_List<TopoDS_Shape> aSubs;
 493     addSimpleToList(aResult, aSubs);
 494     if(aSubs.Size() == 1) {
 495       aResult = aSubs.First();
 496     } else if(aSubs.Size() == 0) {
 497       return GeomShapePtr();
 498     }
 499   }
 500
 501   GeomShapePtr aResShape(new GeomAPI_Shape);
 502   aResShape->setImpl(new TopoDS_Shape(aResult));
 503   return aResShape;
 504 }
 505
 506 bool GeomAPI_Shape::isIntersect(const GeomShapePtr theShape) const
 507 {
 508   if(!theShape.get()) {
 509     return false;
 510   }
 511
 512   const TopoDS_Shape& aShape1 = const_cast<GeomAPI_Shape*>(this)->impl<TopoDS_Shape>();
 513   const TopoDS_Shape& aShape2 = theShape->impl<TopoDS_Shape>();
 514
 515   BRepExtrema_DistShapeShape aDist(aShape1, aShape2);
 516   aDist.Perform();
 517   if(aDist.IsDone() && aDist.Value() < Precision::Confusion()) {
 518     return true;
 519   }
 520
 521   return false;
 522 }
 523
 524 void GeomAPI_Shape::translate(const std::shared_ptr<GeomAPI_Dir> theDir, const double theOffset)
 525 {
 526   gp_Dir aDir = theDir->impl<gp_Dir>();
 527   gp_Vec aTrsfVec(aDir.XYZ() * theOffset);
 528   gp_Trsf aTranslation;
 529   aTranslation.SetTranslation(aTrsfVec);
 530   TopoDS_Shape aResult = MY_SHAPE->Moved(aTranslation);
 531   setImpl(new TopoDS_Shape(aResult));
 532 }