src/GeomAPI/GeomAPI_Shape.cpp

   1 // Copyright (C) 2014-20xx CEA/DEN, EDF R&D
   2
   3 // File:        GeomAPI_Shape.cpp
   4 // Created:     23 Apr 2014
   5 // Author:      Mikhail PONIKAROV
   6
   7 #include "GeomAPI_Shape.h"
   8
   9 #include <BRep_Tool.hxx>
  10 #include <BRepBndLib.hxx>
  11 #include <BRepBuilderAPI_FindPlane.hxx>
  12 #include <BRepTools.hxx>
  13 #include <Bnd_Box.hxx>
  14 #include <Geom_Circle.hxx>
  15 #include <Geom_Conic.hxx>
  16 #include <Geom_Curve.hxx>
  17 #include <Geom_Ellipse.hxx>
  18 #include <Geom_Hyperbola.hxx>
  19 #include <Geom_Line.hxx>
  20 #include <Geom_Parabola.hxx>
  21 #include <Geom_Plane.hxx>
  22 #include <Geom_RectangularTrimmedSurface.hxx>
  23 #include <Geom_TrimmedCurve.hxx>
  24 #include <TopExp_Explorer.hxx>
  25 #include <TopoDS.hxx>
  26 #include <TopoDS_Iterator.hxx>
  27 #include <TopoDS_Shape.hxx>
  28 #include <NCollection_List.hxx>
  29
  30 #include <sstream>
  31 #include <algorithm> // for std::transform
  32
  33 #define MY_SHAPE implPtr<TopoDS_Shape>()
  34
  35 GeomAPI_Shape::GeomAPI_Shape()
  36     : GeomAPI_Interface(new TopoDS_Shape())
  37 {
  38 }
  39
  40 std::shared_ptr<GeomAPI_Shape> GeomAPI_Shape::emptyCopied() const
  41 {
  42   GeomShapePtr aShape(new GeomAPI_Shape());
  43   aShape->setImpl(new TopoDS_Shape(MY_SHAPE->EmptyCopied()));
  44   return aShape;
  45 }
  46
  47 bool GeomAPI_Shape::isNull() const
  48 {
  49   return MY_SHAPE->IsNull() == Standard_True;
  50 }
  51
  52 bool GeomAPI_Shape::isEqual(const std::shared_ptr<GeomAPI_Shape> theShape) const
  53 {
  54   if (!theShape.get())
  55     return false;
  56   if (isNull())
  57     return theShape->isNull();
  58   if (theShape->isNull())
  59     return false;
  60
  61   return MY_SHAPE->IsEqual(theShape->impl<TopoDS_Shape>()) == Standard_True;
  62 }
  63
  64 bool GeomAPI_Shape::isVertex() const
  65 {
  66   const TopoDS_Shape& aShape = const_cast<GeomAPI_Shape*>(this)->impl<TopoDS_Shape>();
  67   return !aShape.IsNull() && aShape.ShapeType() == TopAbs_VERTEX;
  68 }
  69
  70 bool GeomAPI_Shape::isEdge() const
  71 {
  72   const TopoDS_Shape& aShape = const_cast<GeomAPI_Shape*>(this)->impl<TopoDS_Shape>();
  73   return !aShape.IsNull() && aShape.ShapeType() == TopAbs_EDGE;
  74 }
  75
  76 bool GeomAPI_Shape::isFace() const
  77 {
  78   const TopoDS_Shape& aShape = const_cast<GeomAPI_Shape*>(this)->impl<TopoDS_Shape>();
  79   return !aShape.IsNull() && aShape.ShapeType() == TopAbs_FACE;
  80 }
  81
  82 bool GeomAPI_Shape::isCompound() const
  83 {
  84   const TopoDS_Shape& aShape = const_cast<GeomAPI_Shape*>(this)->impl<TopoDS_Shape>();
  85   return !aShape.IsNull() && aShape.ShapeType() == TopAbs_COMPOUND;
  86 }
  87
  88 bool GeomAPI_Shape::isCompoundOfSolids() const
  89 {
  90   const TopoDS_Shape& aShape = const_cast<GeomAPI_Shape*>(this)->impl<TopoDS_Shape>();
  91   if (aShape.IsNull() || aShape.ShapeType() != TopAbs_COMPOUND)
  92     return false;
  93   bool isAtLeastOne = false;
  94   for(TopoDS_Iterator aSubs(aShape); aSubs.More(); aSubs.Next()) {
  95     if (aSubs.Value().IsNull() || aSubs.Value().ShapeType() != TopAbs_SOLID)
  96       return false;
  97     isAtLeastOne = true;
  98   }
  99   return isAtLeastOne;
 100 }
 101
 102 // adds the nopt-compound elements recursively to the list
 103 static void addSimpleToList(const TopoDS_Shape& theShape, NCollection_List<TopoDS_Shape>& theList)
 104 {
 105   if (!theShape.IsNull()) {
 106     if (theShape.ShapeType() == TopAbs_COMPOUND) {
 107       for(TopoDS_Iterator aSubs(theShape); aSubs.More(); aSubs.Next()) {
 108         addSimpleToList(aSubs.Value(), theList);
 109       }
 110     } else {
 111       theList.Append(theShape);
 112     }
 113   }
 114 }
 115
 116 bool GeomAPI_Shape::isConnectedTopology() const
 117 {
 118   const TopoDS_Shape& aShape = const_cast<GeomAPI_Shape*>(this)->impl<TopoDS_Shape>();
 119   if (aShape.IsNull() || aShape.ShapeType() != TopAbs_COMPOUND)
 120     return false;
 121   // list of simple elements that are not detected in connection to others
 122   NCollection_List<TopoDS_Shape> aNotConnected;
 123   addSimpleToList(aShape, aNotConnected);
 124   if (aNotConnected.IsEmpty()) // an empty compound
 125     return false;
 126
 127   // collect here the group of connected subs, starting with one first element
 128   NCollection_List<TopoDS_Shape> aNewConnected;
 129   aNewConnected.Append(aNotConnected.First());
 130   aNotConnected.RemoveFirst();
 131   // iterate until some new element become connected
 132   while(!aNewConnected.IsEmpty() && !aNotConnected.IsEmpty()) {
 133     NCollection_List<TopoDS_Shape> aNew; // very new connected to new connected
 134     NCollection_List<TopoDS_Shape>::Iterator aNotIter(aNotConnected);
 135     while(aNotIter.More()) {
 136       // optimization to avoid TopExp_Explorer double-cycle, collect all vertices in the list first
 137       NCollection_List<TopoDS_Shape> aNotVertices;
 138       for(TopExp_Explorer anExp1(aNotIter.Value(), TopAbs_VERTEX); anExp1.More(); anExp1.Next()) {
 139         aNotVertices.Append(anExp1.Current());
 140       }
 141
 142       bool aConnected =  false;
 143       NCollection_List<TopoDS_Shape>::Iterator aNewIter(aNewConnected);
 144       for(; !aConnected && aNewIter.More(); aNewIter.Next()) {
 145         // checking topological connecion of aNotIter and aNewIter
 146         // (if shapes are connected, vertices are connected for sure)
 147         TopExp_Explorer anExp2(aNewIter.Value(), TopAbs_VERTEX);
 148         for(; !aConnected && anExp2.More(); anExp2.Next()) {
 149           NCollection_List<TopoDS_Shape>::Iterator aNotIter(aNotVertices);
 150           for(; aNotIter.More(); aNotIter.Next()) {
 151             if (aNotIter.Value().IsSame(anExp2.Current())) {
 152               aConnected = true;
 153               break;
 154             }
 155           }
 156         }
 157       }
 158       if (aConnected) {
 159         aNew.Append(aNotIter.Value());
 160         aNotConnected.Remove(aNotIter);
 161       } else {
 162         aNotIter.Next();
 163       }
 164     }
 165     // remove all new connected and put to this list very new connected
 166     aNewConnected.Clear();
 167     aNewConnected.Append(aNew);
 168   }
 169   return aNotConnected.IsEmpty() == Standard_True;
 170 }
 171
 172 bool GeomAPI_Shape::isSolid() const
 173 {
 174   const TopoDS_Shape& aShape = const_cast<GeomAPI_Shape*>(this)->impl<TopoDS_Shape>();
 175   return !aShape.IsNull() && aShape.ShapeType() == TopAbs_SOLID;
 176 }
 177
 178 bool GeomAPI_Shape::isCompSolid() const
 179 {
 180   const TopoDS_Shape& aShape = const_cast<GeomAPI_Shape*>(this)->impl<TopoDS_Shape>();
 181   return !aShape.IsNull() && aShape.ShapeType() == TopAbs_COMPSOLID;
 182 }
 183
 184 bool GeomAPI_Shape::isPlanar() const
 185 {
 186   TopoDS_Shape aShape = impl<TopoDS_Shape>();
 187
 188   if(aShape.IsNull()) {
 189     return false;
 190   }
 191
 192   TopAbs_ShapeEnum aShapeType = aShape.ShapeType();
 193   if(aShapeType == TopAbs_COMPOUND) {
 194     TopoDS_Iterator anIt(aShape);
 195     int aShNum = 0;
 196     for(; anIt.More(); anIt.Next()) {
 197       ++aShNum;
 198     }
 199     if(aShNum == 1) {
 200       anIt.Initialize(aShape);
 201       aShape = anIt.Value();
 202     }
 203   }
 204
 205   aShapeType = aShape.ShapeType();
 206   if(aShapeType == TopAbs_VERTEX) {
 207     return true;
 208   } else if(aShapeType == TopAbs_FACE) {
 209     const Handle(Geom_Surface)& aSurface = BRep_Tool::Surface(TopoDS::Face(aShape));
 210     Handle(Standard_Type) aType = aSurface->DynamicType();
 211
 212     if(aType == STANDARD_TYPE(Geom_RectangularTrimmedSurface)) {
 213       Handle(Geom_RectangularTrimmedSurface) aTrimSurface =
 214         Handle(Geom_RectangularTrimmedSurface)::DownCast(aSurface);
 215       aType = aTrimSurface->BasisSurface()->DynamicType();
 216     }
 217     return (aType == STANDARD_TYPE(Geom_Plane)) == Standard_True;
 218   } else {
 219     BRepBuilderAPI_FindPlane aFindPlane(aShape);
 220     bool isFound = aFindPlane.Found() == Standard_True;
 221
 222     if(!isFound && aShapeType == TopAbs_EDGE) {
 223       Standard_Real aFirst, aLast;
 224       Handle(Geom_Curve) aCurve = BRep_Tool::Curve(TopoDS::Edge(aShape), aFirst, aLast);
 225       Handle(Standard_Type) aType = aCurve->DynamicType();
 226
 227       if(aType == STANDARD_TYPE(Geom_TrimmedCurve)) {
 228         Handle(Geom_TrimmedCurve) aTrimCurve = Handle(Geom_TrimmedCurve)::DownCast(aCurve);
 229         aType = aTrimCurve->BasisCurve()->DynamicType();
 230       }
 231
 232       if(aType == STANDARD_TYPE(Geom_Line)
 233           || aType == STANDARD_TYPE(Geom_Conic)
 234           || aType == STANDARD_TYPE(Geom_Circle)
 235           || aType == STANDARD_TYPE(Geom_Ellipse)
 236           || aType == STANDARD_TYPE(Geom_Hyperbola)
 237           || aType == STANDARD_TYPE(Geom_Parabola)) {
 238         isFound = true;
 239       }
 240     }
 241
 242     return isFound;
 243   }
 244
 245   return false;
 246 }
 247
 248 GeomAPI_Shape::ShapeType GeomAPI_Shape::shapeType() const
 249 {
 250   const TopoDS_Shape& aShape = impl<TopoDS_Shape>();
 251
 252   ShapeType aST = GeomAPI_Shape::SHAPE;
 253
 254   switch(aShape.ShapeType()) {
 255   case TopAbs_COMPOUND:
 256     aST = GeomAPI_Shape::COMPOUND;
 257     break;
 258   case TopAbs_COMPSOLID:
 259     aST = GeomAPI_Shape::COMPSOLID;
 260     break;
 261   case TopAbs_SOLID:
 262     aST = GeomAPI_Shape::SOLID;
 263     break;
 264   case TopAbs_SHELL:
 265     aST = GeomAPI_Shape::SHELL;
 266     break;
 267   case TopAbs_FACE:
 268     aST = GeomAPI_Shape::FACE;
 269     break;
 270   case TopAbs_WIRE:
 271     aST = GeomAPI_Shape::WIRE;
 272     break;
 273   case TopAbs_EDGE:
 274     aST = GeomAPI_Shape::EDGE;
 275     break;
 276   case TopAbs_VERTEX:
 277     aST = GeomAPI_Shape::VERTEX;
 278     break;
 279   case TopAbs_SHAPE:
 280     aST = GeomAPI_Shape::SHAPE;
 281     break;
 282   }
 283
 284   return aST;
 285 }
 286
 287 GeomAPI_Shape::ShapeType GeomAPI_Shape::shapeTypeByStr(std::string theType)
 288 {
 289   std::transform(theType.begin(), theType.end(), theType.begin(), ::toupper);
 290   if (theType == "COMPOUND")
 291     return COMPOUND;
 292   if (theType == "COMPSOLID")
 293     return COMPSOLID;
 294   if (theType == "SOLID")
 295     return SOLID;
 296   if (theType == "SHELL")
 297     return SHELL;
 298   if (theType == "FACE")
 299     return FACE;
 300   if (theType == "WIRE")
 301     return WIRE;
 302   if (theType == "EDGE")
 303     return EDGE;
 304   if (theType == "VERTEX")
 305     return VERTEX;
 306   return SHAPE; // default
 307 }
 308
 309 std::string GeomAPI_Shape::shapeTypeStr() const
 310 {
 311   ShapeType aShapeType = shapeType();
 312   std::string aShapeTypeStr;
 313
 314   switch(aShapeType) {
 315     case COMPOUND: {
 316       aShapeTypeStr = "COMPOUND";
 317       break;
 318     }
 319     case COMPSOLID: {
 320       aShapeTypeStr = "COMPSOLID";
 321       break;
 322     }
 323     case SOLID: {
 324       aShapeTypeStr = "SOLID";
 325       break;
 326     }
 327     case SHELL: {
 328       aShapeTypeStr = "SHELL";
 329       break;
 330     }
 331     case FACE: {
 332       aShapeTypeStr = "FACE";
 333       break;
 334     }
 335     case WIRE: {
 336       aShapeTypeStr = "WIRE";
 337       break;
 338     }
 339     case EDGE: {
 340       aShapeTypeStr = "EDGE";
 341       break;
 342     }
 343     case VERTEX: {
 344       aShapeTypeStr = "VERTEX";
 345       break;
 346     }
 347     case SHAPE: {
 348       aShapeTypeStr = "SHAPE";
 349       break;
 350     }
 351   }
 352
 353   return aShapeTypeStr;
 354 }
 355
 356 GeomAPI_Shape::Orientation GeomAPI_Shape::orientation() const
 357 {
 358   TopAbs_Orientation anOrientation = MY_SHAPE->Orientation();
 359
 360   switch(anOrientation) {
 361     case TopAbs_FORWARD:  return FORWARD;
 362     case TopAbs_REVERSED: return REVERSED;
 363     case TopAbs_INTERNAL: return INTERNAL;
 364     case TopAbs_EXTERNAL: return EXTERNAL;
 365     default:              return FORWARD;
 366   }
 367 }
 368
 369 void GeomAPI_Shape::setOrientation(const GeomAPI_Shape::Orientation theOrientation)
 370 {
 371   TopAbs_Orientation anOrientation = MY_SHAPE->Orientation();
 372
 373   switch(theOrientation) {
 374     case FORWARD:  MY_SHAPE->Orientation(TopAbs_FORWARD);  break;
 375     case REVERSED: MY_SHAPE->Orientation(TopAbs_REVERSED); break;
 376     case INTERNAL: MY_SHAPE->Orientation(TopAbs_INTERNAL); break;
 377     case EXTERNAL: MY_SHAPE->Orientation(TopAbs_EXTERNAL); break;
 378   }
 379 }
 380
 381 bool GeomAPI_Shape::isSubShape(const std::shared_ptr<GeomAPI_Shape> theShape) const
 382 {
 383   if(!theShape.get()) {
 384     return false;
 385   }
 386
 387   const TopoDS_Shape& aShapeToSearch = theShape->impl<TopoDS_Shape>();
 388   if(aShapeToSearch.IsNull()) {
 389     return false;
 390   }
 391
 392   for(TopExp_Explorer anExp(*MY_SHAPE, aShapeToSearch.ShapeType()); anExp.More(); anExp.Next()) {
 393     if(aShapeToSearch.IsEqual(anExp.Current())) {
 394       return true;
 395     }
 396   }
 397
 398   return false;
 399 }
 400
 401 bool GeomAPI_Shape::computeSize(double& theXmin, double& theYmin, double& theZmin,
 402                                 double& theXmax, double& theYmax, double& theZmax) const
 403 {
 404   const TopoDS_Shape& aShape = const_cast<GeomAPI_Shape*>(this)->impl<TopoDS_Shape>();
 405   if (aShape.IsNull())
 406     return false;
 407   Bnd_Box aBndBox;
 408   BRepBndLib::Add(aShape, aBndBox);
 409   aBndBox.Get(theXmin, theYmin, theZmin, theXmax, theYmax, theZmax);
 410   return true;
 411 }
 412
 413 std::string GeomAPI_Shape::getShapeStream() const
 414 {
 415   std::ostringstream aStream;
 416   const TopoDS_Shape& aShape = const_cast<GeomAPI_Shape*>(this)->impl<TopoDS_Shape>();
 417   BRepTools::Write(aShape, aStream);
 418   return aStream.str();
 419 }