src/GeomAlgoAPI/GeomAlgoAPI_ShapeBuilder.cpp

   1 // Copyright (C) 2014-20xx CEA/DEN, EDF R&D
   2
   3 // File:        GeomAlgoAPI_ShapeBuilder.cpp
   4 // Created:     27 April 2016
   5 // Author:      Dmitry Bobylev
   6
   7 #include "GeomAlgoAPI_ShapeBuilder.h"
   8
   9 #include "GeomAlgoAPI_MakeShapeCustom.h"
  10
  11 #include <GeomAPI_ShapeIterator.h>
  12
  13 #include <BRep_Builder.hxx>
  14 #include <BRepBuilderAPI_Copy.hxx>
  15 #include <BRepExtrema_DistShapeShape.hxx>
  16 #include <BRepTools_ReShape.hxx>
  17 #include <Precision.hxx>
  18 #include <TopExp_Explorer.hxx>
  19 #include <TopoDS.hxx>
  20 #include <TopoDS_Edge.hxx>
  21 #include <TopoDS_Iterator.hxx>
  22 #include <TopoDS_Shape.hxx>
  23
  24 //==================================================================================================
  25 void GeomAlgoAPI_ShapeBuilder::add(std::shared_ptr<GeomAPI_Shape> theShape,
  26                                    const std::shared_ptr<GeomAPI_Shape> theShapeToAdd)
  27 {
  28   if(!theShape.get() || !theShapeToAdd.get()) {
  29     return;
  30   }
  31
  32   TopoDS_Shape* aShape = theShape->implPtr<TopoDS_Shape>();
  33   const TopoDS_Shape& aShapeToAdd = theShapeToAdd->impl<TopoDS_Shape>();
  34
  35   BRep_Builder aBuilder;
  36   aBuilder.Add(*aShape, aShapeToAdd);
  37 }
  38
  39
  40 //==================================================================================================
  41 void GeomAlgoAPI_ShapeBuilder::remove(std::shared_ptr<GeomAPI_Shape> theShape,
  42                                       const std::shared_ptr<GeomAPI_Shape> theShapeToRemove)
  43 {
  44   if(!theShape.get() || !theShapeToRemove.get()) {
  45     return;
  46   }
  47
  48   TopoDS_Shape* aShape = theShape->implPtr<TopoDS_Shape>();
  49   const TopoDS_Shape& aShapeToRemove = theShapeToRemove->impl<TopoDS_Shape>();
  50
  51   BRep_Builder aBuilder;
  52   aBuilder.Remove(*aShape, aShapeToRemove);
  53 }
  54
  55 //==================================================================================================
  56 GeomAlgoAPI_ShapeBuilder::GeomAlgoAPI_ShapeBuilder()
  57 {
  58 }
  59
  60 //==================================================================================================
  61 void GeomAlgoAPI_ShapeBuilder::removeInternal(const std::shared_ptr<GeomAPI_Shape> theShape)
  62 {
  63   GeomShapePtr aResultShape;
  64
  65   GeomAPI_Shape::ShapeType aBaseShapeType = theShape->shapeType();
  66   if(aBaseShapeType == GeomAPI_Shape::WIRE) {
  67     aResultShape = theShape->emptyCopied();
  68     std::shared_ptr<GeomAlgoAPI_MakeShapeCustom> aMakeShapeCustom(new GeomAlgoAPI_MakeShapeCustom());
  69     for(GeomAPI_ShapeIterator anIter(theShape); anIter.more(); anIter.next()) {
  70       GeomShapePtr aSubShape = anIter.current();
  71       GeomShapePtr aSubShapeCopy = aSubShape->emptyCopied();
  72       for(GeomAPI_ShapeIterator aSubIter(aSubShape); aSubIter.more(); aSubIter.next()) {
  73         GeomShapePtr aSubOfSubShape = aSubIter.current();
  74         if(aSubOfSubShape->orientation() != GeomAPI_Shape::INTERNAL) {
  75           GeomAlgoAPI_ShapeBuilder::add(aSubShapeCopy, aSubOfSubShape);
  76         }
  77       }
  78       aMakeShapeCustom->addModified(aSubShape, aSubShapeCopy);
  79       GeomAlgoAPI_ShapeBuilder::add(aResultShape, aSubShapeCopy);
  80     }
  81     this->appendAlgo(aMakeShapeCustom);
  82   } else if(aBaseShapeType == GeomAPI_Shape::FACE) {
  83     const TopoDS_Shape& aBaseShape = theShape->impl<TopoDS_Shape>();
  84     BRepBuilderAPI_Copy* aCopyBuilder = new BRepBuilderAPI_Copy(aBaseShape);
  85     this->appendAlgo(std::shared_ptr<GeomAlgoAPI_MakeShape>(new GeomAlgoAPI_MakeShape(aCopyBuilder)));
  86     if(!aCopyBuilder->IsDone()) {
  87       return;
  88     }
  89     TopoDS_Shape aShape = aCopyBuilder->Shape();
  90     TopoDS_Shape aShapeCopy = aShape.EmptyCopied();
  91     BRep_Builder aBuilder;
  92     for(TopoDS_Iterator anIt(aShape); anIt.More(); anIt.Next()) {
  93       const TopoDS_Shape& aSubShape = anIt.Value();
  94       if(aSubShape.ShapeType() == TopAbs_WIRE
  95           && aSubShape.Orientation() != TopAbs_INTERNAL) {
  96         aBuilder.Add(aShapeCopy, aSubShape);
  97       }
  98     }
  99     aResultShape.reset(new GeomAPI_Shape());
 100     aResultShape->setImpl(new TopoDS_Shape(aShapeCopy));
 101   }
 102
 103   setShape(aResultShape);
 104   setDone(true);
 105 }
 106
 107 //==================================================================================================
 108 void GeomAlgoAPI_ShapeBuilder::addInternal(const std::shared_ptr<GeomAPI_Shape> theShape,
 109                                            const ListOfShape& theShapesToAdd)
 110 {
 111   // Get base shape.
 112   if(!theShape.get()) {
 113     return;
 114   }
 115   const TopoDS_Shape& aBaseShape = theShape->impl<TopoDS_Shape>();
 116   TopAbs_ShapeEnum aBaseShapeType = aBaseShape.ShapeType();
 117
 118   // Copy base shape.
 119   BRepBuilderAPI_Copy* aCopyBuilder = new BRepBuilderAPI_Copy(aBaseShape);
 120   this->appendAlgo(std::shared_ptr<GeomAlgoAPI_MakeShape>(new GeomAlgoAPI_MakeShape(aCopyBuilder)));
 121   if(!aCopyBuilder->IsDone()) {
 122     return;
 123   }
 124   TopoDS_Shape aResultShape = aCopyBuilder->Shape();
 125
 126   // Copy sub-shapes from list to new shape.
 127   BRep_Builder aBuilder;
 128   std::shared_ptr<GeomAlgoAPI_MakeShapeCustom> aMakeShapeCustom(new GeomAlgoAPI_MakeShapeCustom());
 129   for(ListOfShape::const_iterator anIt = theShapesToAdd.cbegin(); anIt != theShapesToAdd.cend(); ++anIt) {
 130     TopoDS_Shape aShapeToAdd = (*anIt)->impl<TopoDS_Shape>();
 131     TopoDS_Shape aModShapeToAdd = aShapeToAdd;
 132     aModShapeToAdd.Orientation(TopAbs_INTERNAL);
 133     for(TopExp_Explorer aResExp(aResultShape, TopAbs_VERTEX); aResExp.More(); aResExp.Next()) {
 134       const TopoDS_Vertex& aVertexInRes = TopoDS::Vertex(aResExp.Current());
 135       const gp_Pnt aPntInRes = BRep_Tool::Pnt(aVertexInRes);
 136       for(TopExp_Explorer anAddExp(aShapeToAdd, TopAbs_VERTEX); anAddExp.More(); anAddExp.Next()) {
 137         const TopoDS_Vertex& aVertexInAdd = TopoDS::Vertex(anAddExp.Current());
 138         const gp_Pnt aPntInAdd = BRep_Tool::Pnt(aVertexInAdd);
 139         if(aPntInRes.Distance(aPntInAdd) < Precision::Confusion()) {
 140           BRepTools_ReShape aReShape;
 141           TopoDS_Shape aVertexInResMod = aVertexInRes;
 142           aVertexInResMod.Orientation(aVertexInAdd.Orientation());
 143           aReShape.Replace(aVertexInAdd, aVertexInResMod);
 144           aModShapeToAdd = aReShape.Apply(aModShapeToAdd);
 145         }
 146       }
 147     }
 148
 149     GeomShapePtr aGeomBaseShape(new GeomAPI_Shape());
 150     GeomShapePtr aGeomModShape(new GeomAPI_Shape());
 151     aGeomBaseShape->setImpl(new TopoDS_Shape(aShapeToAdd));
 152     aGeomModShape->setImpl(new TopoDS_Shape(aModShapeToAdd));
 153     aMakeShapeCustom->addModified(aGeomBaseShape, aGeomModShape);
 154     aShapeToAdd = aModShapeToAdd;
 155
 156     TopAbs_ShapeEnum aShapeToAddType = aShapeToAdd.ShapeType();
 157     if(aBaseShapeType == TopAbs_WIRE) {
 158       if(aShapeToAddType == TopAbs_VERTEX) {
 159         // Find on which edge vertex is lie and add to this edge.
 160         for(TopExp_Explorer aResultExp(aResultShape, TopAbs_EDGE); aResultExp.More(); aResultExp.Next()) {
 161           TopoDS_Shape anEdge = aResultExp.Current();
 162           BRepExtrema_DistShapeShape aDist(anEdge, aShapeToAdd);
 163           aDist.Perform();
 164           if(aDist.IsDone() && aDist.Value() <= Precision::Confusion()) {
 165             aShapeToAdd.Orientation(TopAbs_INTERNAL);
 166             Standard_Boolean aFreeFlag = anEdge.Free();
 167             anEdge.Free(Standard_True);
 168             aBuilder.Add(anEdge, aShapeToAdd);
 169             anEdge.Free(aFreeFlag);
 170             break;
 171           }
 172         }
 173       }
 174     } else if(aBaseShapeType == GeomAPI_Shape::FACE) {
 175       if(aShapeToAddType == GeomAPI_Shape::EDGE) {
 176         aShapeToAdd.Orientation(TopAbs_INTERNAL);
 177         TopoDS_Wire aWire;
 178         aBuilder.MakeWire(aWire);
 179         aBuilder.Add(aWire, aShapeToAdd);
 180         aShapeToAdd = aWire;
 181         aShapeToAdd.Orientation(TopAbs_INTERNAL);
 182       }
 183       aBuilder.Add(aResultShape, aShapeToAdd);
 184     }
 185   }
 186   this->appendAlgo(aMakeShapeCustom);
 187
 188   // Set result.
 189   std::shared_ptr<GeomAPI_Shape> aShape(new GeomAPI_Shape());
 190   aShape->setImpl(new TopoDS_Shape(aResultShape));
 191   setShape(aShape);
 192   setDone(true);
 193 }