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