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       bool aConnected =  false;
 135       NCollection_List<TopoDS_Shape>::Iterator aNewIter(aNewConnected);
 136       for(; !aConnected && aNewIter.More(); aNewIter.Next()) {
 137         // checking topological connecion of aNotIter and aNewIter (if shapes are connected, vertices are connected for sure)
 138         TopExp_Explorer anExp1(aNotIter.Value(), TopAbs_VERTEX);
 139         for(; !aConnected && anExp1.More(); anExp1.Next()) {
 140           TopExp_Explorer anExp2(aNewIter.Value(), TopAbs_VERTEX);
 141           for(; anExp2.More(); anExp2.Next()) {
 142             if (anExp1.Current().IsSame(anExp2.Current())) {
 143               aConnected = true;
 144               break;
 145             }
 146           }
 147         }
 148       }
 149       if (aConnected) {
 150         aNew.Append(aNotIter.Value());
 151         aNotConnected.Remove(aNotIter);
 152       } else {
 153         aNotIter.Next();
 154       }
 155     }
 156     // remove all new connected and put to this list very new connected
 157     aNewConnected.Clear();
 158     aNewConnected.Append(aNew);
 159   }
 160   return aNotConnected.IsEmpty() == Standard_True;
 161 }
 162
 163 bool GeomAPI_Shape::isSolid() const
 164 {
 165   const TopoDS_Shape& aShape = const_cast<GeomAPI_Shape*>(this)->impl<TopoDS_Shape>();
 166   return !aShape.IsNull() && aShape.ShapeType() == TopAbs_SOLID;
 167 }
 168
 169 bool GeomAPI_Shape::isCompSolid() const
 170 {
 171   const TopoDS_Shape& aShape = const_cast<GeomAPI_Shape*>(this)->impl<TopoDS_Shape>();
 172   return !aShape.IsNull() && aShape.ShapeType() == TopAbs_COMPSOLID;
 173 }
 174
 175 bool GeomAPI_Shape::isPlanar() const
 176 {
 177   TopoDS_Shape aShape = impl<TopoDS_Shape>();
 178
 179   if(aShape.IsNull()) {
 180     return false;
 181   }
 182
 183   TopAbs_ShapeEnum aShapeType = aShape.ShapeType();
 184   if(aShapeType == TopAbs_COMPOUND) {
 185     TopoDS_Iterator anIt(aShape);
 186     int aShNum = 0;
 187     for(; anIt.More(); anIt.Next()) {
 188       ++aShNum;
 189     }
 190     if(aShNum == 1) {
 191       anIt.Initialize(aShape);
 192       aShape = anIt.Value();
 193     }
 194   }
 195
 196   aShapeType = aShape.ShapeType();
 197   if(aShapeType == TopAbs_VERTEX) {
 198     return true;
 199   } else if(aShapeType == TopAbs_FACE) {
 200     const Handle(Geom_Surface)& aSurface = BRep_Tool::Surface(TopoDS::Face(aShape));
 201     Handle(Standard_Type) aType = aSurface->DynamicType();
 202
 203     if(aType == STANDARD_TYPE(Geom_RectangularTrimmedSurface)) {
 204       Handle(Geom_RectangularTrimmedSurface) aTrimSurface = Handle(Geom_RectangularTrimmedSurface)::DownCast(aSurface);
 205       aType = aTrimSurface->BasisSurface()->DynamicType();
 206     }
 207     return (aType == STANDARD_TYPE(Geom_Plane)) == Standard_True;
 208   } else {
 209     BRepBuilderAPI_FindPlane aFindPlane(aShape);
 210     bool isFound = aFindPlane.Found() == Standard_True;
 211
 212     if(!isFound && aShapeType == TopAbs_EDGE) {
 213       Standard_Real aFirst, aLast;
 214       Handle(Geom_Curve) aCurve = BRep_Tool::Curve(TopoDS::Edge(aShape), aFirst, aLast);
 215       Handle(Standard_Type) aType = aCurve->DynamicType();
 216
 217       if(aType == STANDARD_TYPE(Geom_TrimmedCurve)) {
 218         Handle(Geom_TrimmedCurve) aTrimCurve = Handle(Geom_TrimmedCurve)::DownCast(aCurve);
 219         aType = aTrimCurve->BasisCurve()->DynamicType();
 220       }
 221
 222       if(aType == STANDARD_TYPE(Geom_Line)
 223           || aType == STANDARD_TYPE(Geom_Conic)
 224           || aType == STANDARD_TYPE(Geom_Circle)
 225           || aType == STANDARD_TYPE(Geom_Ellipse)
 226           || aType == STANDARD_TYPE(Geom_Hyperbola)
 227           || aType == STANDARD_TYPE(Geom_Parabola)) {
 228         isFound = true;
 229       }
 230     }
 231
 232     return isFound;
 233   }
 234
 235   return false;
 236 }
 237
 238 GeomAPI_Shape::ShapeType GeomAPI_Shape::shapeType() const
 239 {
 240   const TopoDS_Shape& aShape = impl<TopoDS_Shape>();
 241
 242   ShapeType aST = GeomAPI_Shape::SHAPE;
 243
 244   switch(aShape.ShapeType()) {
 245   case TopAbs_COMPOUND:
 246     aST = GeomAPI_Shape::COMPOUND;
 247     break;
 248   case TopAbs_COMPSOLID:
 249     aST = GeomAPI_Shape::COMPSOLID;
 250     break;
 251   case TopAbs_SOLID:
 252     aST = GeomAPI_Shape::SOLID;
 253     break;
 254   case TopAbs_SHELL:
 255     aST = GeomAPI_Shape::SHELL;
 256     break;
 257   case TopAbs_FACE:
 258     aST = GeomAPI_Shape::FACE;
 259     break;
 260   case TopAbs_WIRE:
 261     aST = GeomAPI_Shape::WIRE;
 262     break;
 263   case TopAbs_EDGE:
 264     aST = GeomAPI_Shape::EDGE;
 265     break;
 266   case TopAbs_VERTEX:
 267     aST = GeomAPI_Shape::VERTEX;
 268     break;
 269   case TopAbs_SHAPE:
 270     aST = GeomAPI_Shape::SHAPE;
 271     break;
 272   }
 273
 274   return aST;
 275 }
 276
 277 std::string GeomAPI_Shape::shapeTypeStr() const
 278 {
 279   ShapeType aShapeType = shapeType();
 280   std::string aShapeTypeStr;
 281
 282   switch(aShapeType) {
 283     case COMPOUND: {
 284       aShapeTypeStr = "Compound";
 285       break;
 286     }
 287     case COMPSOLID: {
 288       aShapeTypeStr = "CompSolid";
 289       break;
 290     }
 291     case SOLID: {
 292       aShapeTypeStr = "Solid";
 293       break;
 294     }
 295     case SHELL: {
 296       aShapeTypeStr = "Shell";
 297       break;
 298     }
 299     case FACE: {
 300       aShapeTypeStr = "Face";
 301       break;
 302     }
 303     case WIRE: {
 304       aShapeTypeStr = "Wire";
 305       break;
 306     }
 307     case EDGE: {
 308       aShapeTypeStr = "Edge";
 309       break;
 310     }
 311     case VERTEX: {
 312       aShapeTypeStr = "Vertex";
 313       break;
 314     }
 315     case SHAPE: {
 316       aShapeTypeStr = "Shape";
 317       break;
 318     }
 319   }
 320
 321   return aShapeTypeStr;
 322 }
 323
 324 GeomAPI_Shape::Orientation GeomAPI_Shape::orientation() const
 325 {
 326   TopAbs_Orientation anOrientation = MY_SHAPE->Orientation();
 327
 328   switch(anOrientation) {
 329     case TopAbs_FORWARD:  return FORWARD;
 330     case TopAbs_REVERSED: return REVERSED;
 331     case TopAbs_INTERNAL: return INTERNAL;
 332     case TopAbs_EXTERNAL: return EXTERNAL;
 333     default:              return FORWARD;
 334   }
 335 }
 336
 337 void GeomAPI_Shape::setOrientation(const GeomAPI_Shape::Orientation theOrientation)
 338 {
 339   TopAbs_Orientation anOrientation = MY_SHAPE->Orientation();
 340
 341   switch(theOrientation) {
 342     case FORWARD:  MY_SHAPE->Orientation(TopAbs_FORWARD);  break;
 343     case REVERSED: MY_SHAPE->Orientation(TopAbs_REVERSED); break;
 344     case INTERNAL: MY_SHAPE->Orientation(TopAbs_INTERNAL); break;
 345     case EXTERNAL: MY_SHAPE->Orientation(TopAbs_EXTERNAL); break;
 346   }
 347 }
 348
 349 bool GeomAPI_Shape::isSubShape(const std::shared_ptr<GeomAPI_Shape> theShape) const
 350 {
 351   if(!theShape.get()) {
 352     return false;
 353   }
 354
 355   const TopoDS_Shape& aShapeToSearch = theShape->impl<TopoDS_Shape>();
 356   if(aShapeToSearch.IsNull()) {
 357     return false;
 358   }
 359
 360   for(TopExp_Explorer anExp(*MY_SHAPE, aShapeToSearch.ShapeType()); anExp.More(); anExp.Next()) {
 361     if(aShapeToSearch.IsEqual(anExp.Current())) {
 362       return true;
 363     }
 364   }
 365
 366   return false;
 367 }
 368
 369 bool GeomAPI_Shape::computeSize(double& theXmin, double& theYmin, double& theZmin,
 370                                 double& theXmax, double& theYmax, double& theZmax) const
 371 {
 372   const TopoDS_Shape& aShape = const_cast<GeomAPI_Shape*>(this)->impl<TopoDS_Shape>();
 373   if (aShape.IsNull())
 374     return false;
 375   Bnd_Box aBndBox;
 376   BRepBndLib::Add(aShape, aBndBox);
 377   aBndBox.Get(theXmin, theYmin, theZmin, theXmax, theYmax, theZmax);
 378   return true;
 379 }
 380
 381 std::string GeomAPI_Shape::getShapeStream() const
 382 {
 383   std::ostringstream aStream;
 384   const TopoDS_Shape& aShape = const_cast<GeomAPI_Shape*>(this)->impl<TopoDS_Shape>();
 385   BRepTools::Write(aShape, aStream);
 386   return aStream.str();
 387 }