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