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 = theShape->emptyCopied();
  64   GeomAPI_Shape::ShapeType aBaseShapeType = theShape->shapeType();
  65   std::shared_ptr<GeomAlgoAPI_MakeShapeCustom> aMakeShapeCustom(new GeomAlgoAPI_MakeShapeCustom());
  66   for(GeomAPI_ShapeIterator anIter(theShape); anIter.more(); anIter.next()) {
  67     GeomShapePtr aSubShape = anIter.current();
  68     if(aBaseShapeType == GeomAPI_Shape::WIRE) {
  69       GeomShapePtr aSubShapeCopy = aSubShape->emptyCopied();
  70       aMakeShapeCustom->addModified(aSubShape, aSubShapeCopy);
  71       for(GeomAPI_ShapeIterator aSubIter(aSubShape); aSubIter.more(); aSubIter.next()) {
  72         GeomShapePtr aSubOfSubShape = aSubIter.current();
  73         if(aSubOfSubShape->orientation() != GeomAPI_Shape::INTERNAL) {
  74           GeomAlgoAPI_ShapeBuilder::add(aSubShapeCopy, aSubOfSubShape);
  75         }
  76       }
  77       GeomAlgoAPI_ShapeBuilder::add(aResultShape, aSubShapeCopy);
  78     } else if(aBaseShapeType == GeomAPI_Shape::FACE) {
  79       if(aSubShape->shapeType() == GeomAPI_Shape::WIRE
  80           && aSubShape->orientation() != GeomAPI_Shape::INTERNAL) {
  81         GeomAlgoAPI_ShapeBuilder::add(aResultShape, aSubShape);
  82       }
  83     }
  84   }
  85
  86   this->appendAlgo(aMakeShapeCustom);
  87
  88   setShape(aResultShape);
  89   setDone(true);
  90 }
  91
  92 //==================================================================================================
  93 void GeomAlgoAPI_ShapeBuilder::add(const std::shared_ptr<GeomAPI_Shape> theShape,
  94                                    const ListOfShape& theShapesToAdd)
  95 {
  96   // Get base shape.
  97   if(!theShape.get()) {
  98     return;
  99   }
 100   const TopoDS_Shape& aBaseShape = theShape->impl<TopoDS_Shape>();
 101   TopAbs_ShapeEnum aBaseShapeType = aBaseShape.ShapeType();
 102
 103   // Copy base shape.
 104   BRepBuilderAPI_Copy* aCopyBuilder = new BRepBuilderAPI_Copy(aBaseShape, Standard_False);
 105   this->appendAlgo(std::shared_ptr<GeomAlgoAPI_MakeShape>(new GeomAlgoAPI_MakeShape(aCopyBuilder)));
 106   if(!aCopyBuilder->IsDone()) {
 107     return;
 108   }
 109   TopoDS_Shape aResultShape = aCopyBuilder->Shape();
 110
 111   // Copy sub-shapes from list to new shape.
 112   BRep_Builder aBuilder;
 113   std::shared_ptr<GeomAlgoAPI_MakeShapeCustom> aMakeShapeCustom(new GeomAlgoAPI_MakeShapeCustom());
 114   for(ListOfShape::const_iterator anIt = theShapesToAdd.cbegin(); anIt != theShapesToAdd.cend(); ++anIt) {
 115     TopoDS_Shape aShapeToAdd = (*anIt)->impl<TopoDS_Shape>();
 116     for(TopExp_Explorer aResExp(aResultShape, TopAbs_VERTEX); aResExp.More(); aResExp.Next()) {
 117       const TopoDS_Vertex& aVertexInRes = TopoDS::Vertex(aResExp.Current());
 118       const gp_Pnt aPntInRes = BRep_Tool::Pnt(aVertexInRes);
 119       for(TopExp_Explorer anAddExp(aShapeToAdd, TopAbs_VERTEX); anAddExp.More(); anAddExp.Next()) {
 120         const TopoDS_Vertex& aVertexInAdd = TopoDS::Vertex(anAddExp.Current());
 121         const gp_Pnt aPntInAdd = BRep_Tool::Pnt(aVertexInAdd);
 122         if(aPntInRes.Distance(aPntInAdd) < Precision::Confusion()) {
 123           BRepTools_ReShape aReShape;
 124           TopoDS_Shape aVertexInResMod = aVertexInRes;
 125           aVertexInResMod.Orientation(aVertexInAdd.Orientation());
 126           aReShape.Replace(aVertexInAdd, aVertexInResMod);
 127           TopoDS_Shape aModShape = aReShape.Apply(aShapeToAdd);
 128
 129           GeomShapePtr aGeomBaseShape(new GeomAPI_Shape());
 130           GeomShapePtr aGeomModShape(new GeomAPI_Shape());
 131           aGeomBaseShape->setImpl(new TopoDS_Shape(aShapeToAdd));
 132           aGeomModShape->setImpl(new TopoDS_Shape(aModShape));
 133           aMakeShapeCustom->addModified(aGeomBaseShape, aGeomModShape);
 134           aShapeToAdd = aModShape;
 135         }
 136       }
 137     }
 138     TopAbs_ShapeEnum aShapeToAddType = aShapeToAdd.ShapeType();
 139     if(aBaseShapeType == TopAbs_WIRE) {
 140       if(aShapeToAddType == TopAbs_VERTEX) {
 141         // Find on which edge vertex is lie and add to this edge.
 142         for(TopExp_Explorer aResultExp(aResultShape, TopAbs_EDGE); aResultExp.More(); aResultExp.Next()) {
 143           TopoDS_Shape anEdge = aResultExp.Current();
 144           BRepExtrema_DistShapeShape aDist(anEdge, aShapeToAdd);
 145           aDist.Perform();
 146           if(aDist.IsDone() && aDist.Value() <= Precision::Confusion()) {
 147             aShapeToAdd.Orientation(TopAbs_INTERNAL);
 148             Standard_Boolean aFreeFlag = anEdge.Free();
 149             anEdge.Free(Standard_True);
 150             aBuilder.Add(anEdge, aShapeToAdd);
 151             anEdge.Free(aFreeFlag);
 152             break;
 153           }
 154         }
 155       }
 156     } else if(aBaseShapeType == GeomAPI_Shape::FACE) {
 157       if(aShapeToAddType == GeomAPI_Shape::EDGE) {
 158         aShapeToAdd.Orientation(TopAbs_INTERNAL);
 159         TopoDS_Wire aWire;
 160         aBuilder.MakeWire(aWire);
 161         aBuilder.Add(aWire, aShapeToAdd);
 162         aShapeToAdd = aWire;
 163         aShapeToAdd.Orientation(TopAbs_INTERNAL);
 164       }
 165       aBuilder.Add(aResultShape, aShapeToAdd);
 166     }
 167   }
 168   this->appendAlgo(aMakeShapeCustom);
 169
 170   // Set result.
 171   std::shared_ptr<GeomAPI_Shape> aShape(new GeomAPI_Shape());
 172   aShape->setImpl(new TopoDS_Shape(aResultShape));
 173   setShape(aShape);
 174   setDone(true);
 175 }