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876 lines
32 KiB
C++
876 lines
32 KiB
C++
#include <algorithm>
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#include <iterator>
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#include <Geom_Surface.hxx>
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#include <GeomAdaptor_Surface.hxx>
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#include <Geom_Plane.hxx>
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#include <Geom_CylindricalSurface.hxx>
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#include <gp_Pln.hxx>
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#include <gp_Cylinder.hxx>
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#include <TopoDS_Shape.hxx>
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#include <TopoDS_Compound.hxx>
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#include <TopoDS.hxx>
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#include <TopExp.hxx>
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#include <TopExp_Explorer.hxx>
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#include <BRep_Tool.hxx>
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#include <BRepLib_MakeWire.hxx>
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#include <BRepLib_FuseEdges.hxx>
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#include <BRepBuilderAPI_MakeFace.hxx>
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#include <BRepBuilderAPI_MakeSolid.hxx>
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#include <BRepBuilderAPI_Sewing.hxx>
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#include <Geom_Conic.hxx>
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#include <ShapeBuild_ReShape.hxx>
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#include <ShapeFix_Face.hxx>
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#include <TopTools_ListOfShape.hxx>
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#include <TopTools_ListIteratorOfListOfShape.hxx>
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#include <TopTools_DataMapIteratorOfDataMapOfShapeShape.hxx>
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#include <TopTools_DataMapIteratorOfDataMapOfIntegerListOfShape.hxx>
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#include <BRep_Builder.hxx>
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#include <Bnd_Box.hxx>
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#include <BRepBndLib.hxx>
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#include <ShapeAnalysis_Edge.hxx>
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#include "FITKOCCModelRefine.h"
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using namespace ModelRefine;
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void ModelRefine::getFaceEdges(const TopoDS_Face &face, EdgeVectorType &edges)
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{
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TopExp_Explorer it;
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for (it.Init(face, TopAbs_EDGE); it.More(); it.Next())
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edges.push_back(TopoDS::Edge(it.Current()));
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}
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void ModelRefine::boundaryEdges(const FaceVectorType &faces, EdgeVectorType &edgesOut)
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{
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//this finds all the boundary edges. Maybe more than one boundary.
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std::list<TopoDS_Edge> edges;
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FaceVectorType::const_iterator faceIt;
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for (faceIt = faces.begin(); faceIt != faces.end(); ++faceIt)
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{
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EdgeVectorType faceEdges;
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EdgeVectorType::iterator faceEdgesIt;
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getFaceEdges(*faceIt, faceEdges);
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for (faceEdgesIt = faceEdges.begin(); faceEdgesIt != faceEdges.end(); ++faceEdgesIt)
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{
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bool foundSignal(false);
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std::list<TopoDS_Edge>::iterator edgesIt;
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for (edgesIt = edges.begin(); edgesIt != edges.end(); ++edgesIt)
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{
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if ((*edgesIt).IsSame(*faceEdgesIt))
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{
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edgesIt = edges.erase(edgesIt);
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foundSignal = true;
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break;
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}
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}
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if (!foundSignal)
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edges.push_back(*faceEdgesIt);
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}
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}
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edgesOut.reserve(edges.size());
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std::copy(edges.begin(), edges.end(), back_inserter(edgesOut));
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}
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TopoDS_Shell ModelRefine::removeFaces(const TopoDS_Shell &shell, const FaceVectorType &faces)
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{
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ShapeBuild_ReShape rebuilder;
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FaceVectorType::const_iterator it;
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for (it = faces.begin(); it != faces.end(); ++it)
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rebuilder.Remove(*it);
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return TopoDS::Shell(rebuilder.Apply(shell));
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}
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namespace ModelRefine
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{
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class WireSort
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{
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public:
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bool operator() (const TopoDS_Wire& wire1, const TopoDS_Wire& wire2)
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{
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Bnd_Box box1, box2;
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BRepBndLib::Add(wire1, box1);
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BRepBndLib::Add(wire2, box2);
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// Note: This works because we can be sure that the wires do not intersect
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return box2.SquareExtent() < box1.SquareExtent();
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}
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};
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}
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////////////////////////////////////////////////////////////////////////////////////////////
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void FaceTypeSplitter::addShell(const TopoDS_Shell &shellIn)
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{
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shell = shellIn;
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}
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void FaceTypeSplitter::registerType(const GeomAbs_SurfaceType &type)
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{
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typeMap.insert(SplitMapType::value_type(type, FaceVectorType()));
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}
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bool FaceTypeSplitter::hasType(const GeomAbs_SurfaceType &type) const
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{
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return typeMap.find(type) != typeMap.end();
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}
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void FaceTypeSplitter::split()
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{
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TopExp_Explorer shellIt;
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for (shellIt.Init(shell, TopAbs_FACE); shellIt.More(); shellIt.Next())
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{
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TopoDS_Face tempFace(TopoDS::Face(shellIt.Current()));
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GeomAbs_SurfaceType currentType = FaceTypedBase::getFaceType(tempFace);
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SplitMapType::iterator mapIt = typeMap.find(currentType);
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if (mapIt == typeMap.end())
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continue;
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(*mapIt).second.push_back(tempFace);
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}
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}
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const FaceVectorType& FaceTypeSplitter::getTypedFaceVector(const GeomAbs_SurfaceType &type) const
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{
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if (this->hasType(type))
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return (*(typeMap.find(type))).second;
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//error here.
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static FaceVectorType error;
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return error;
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}
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/////////////////////////////////////////////////////////////////////////////////////////////////////////
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FaceAdjacencySplitter::FaceAdjacencySplitter(const TopoDS_Shell &shell)
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{
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TopExp_Explorer shellIt;
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for (shellIt.Init(shell, TopAbs_FACE); shellIt.More(); shellIt.Next())
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{
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TopTools_ListOfShape shapeList;
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TopExp_Explorer it;
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for (it.Init(shellIt.Current(), TopAbs_EDGE); it.More(); it.Next())
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shapeList.Append(it.Current());
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faceToEdgeMap.Add(shellIt.Current(), shapeList);
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}
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TopExp::MapShapesAndAncestors(shell, TopAbs_EDGE, TopAbs_FACE, edgeToFaceMap);
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}
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void FaceAdjacencySplitter::split(const FaceVectorType &facesIn)
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{
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facesInMap.Clear();
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processedMap.Clear();
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adjacencyArray.clear();
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FaceVectorType::const_iterator it;
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for (it = facesIn.begin(); it != facesIn.end(); ++it)
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facesInMap.Add(*it);
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//the reserve call guarantees the vector will never get "pushed back" in the
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//recursiveFind calls, thus invalidating the iterators. We can be sure of this as any one
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//matched set can't be bigger than the set passed in. if we have seg faults, we will
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//want to turn this tempFaces vector back into a std::list ensuring valid iterators
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//at the expense of std::find speed.
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FaceVectorType tempFaces;
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tempFaces.reserve(facesIn.size() + 1);
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for (it = facesIn.begin(); it != facesIn.end(); ++it)
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{
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//skip already processed shapes.
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if (processedMap.Contains(*it))
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continue;
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tempFaces.clear();
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processedMap.Add(*it);
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recursiveFind(*it, tempFaces);
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if (tempFaces.size() > 1)
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{
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adjacencyArray.push_back(tempFaces);
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}
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}
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}
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void FaceAdjacencySplitter::recursiveFind(const TopoDS_Face &face, FaceVectorType &outVector)
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{
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outVector.push_back(face);
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const TopTools_ListOfShape &edges = faceToEdgeMap.FindFromKey(face);
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TopTools_ListIteratorOfListOfShape edgeIt;
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for (edgeIt.Initialize(edges); edgeIt.More(); edgeIt.Next())
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{
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//don't try to join across seams.
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// Note: BRep_Tool::IsClosed(TopoDS::Edge(edgeIt.Value()), face) is also possible?
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ShapeAnalysis_Edge edgeCheck;
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if(edgeCheck.IsSeam(TopoDS::Edge(edgeIt.Value()), face))
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continue;
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const TopTools_ListOfShape &faces = edgeToFaceMap.FindFromKey(edgeIt.Value());
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TopTools_ListIteratorOfListOfShape faceIt;
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for (faceIt.Initialize(faces); faceIt.More(); faceIt.Next())
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{
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if (!facesInMap.Contains(faceIt.Value()))
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continue;
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if (processedMap.Contains(faceIt.Value()))
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continue;
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processedMap.Add(faceIt.Value());
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recursiveFind(TopoDS::Face(faceIt.Value()), outVector);
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}
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}
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}
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//////////////////////////////////////////////////////////////////////////////////////////////////////
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void FaceEqualitySplitter::split(const FaceVectorType &faces, FaceTypedBase *object)
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{
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std::vector<FaceVectorType> tempVector;
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tempVector.reserve(faces.size());
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FaceVectorType::const_iterator faceIt;
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for (faceIt = faces.begin(); faceIt != faces.end(); ++faceIt)
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{
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bool foundMatch(false);
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std::vector<FaceVectorType>::iterator tempIt;
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for (tempIt = tempVector.begin(); tempIt != tempVector.end(); ++tempIt)
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{
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if (object->isEqual((*tempIt).front(), *faceIt))
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{
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(*tempIt).push_back(*faceIt);
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foundMatch = true;
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break;
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}
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}
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if (!foundMatch)
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{
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FaceVectorType another;
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another.reserve(faces.size());
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another.push_back(*faceIt);
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tempVector.push_back(another);
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}
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}
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std::vector<FaceVectorType>::iterator it;
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for (it = tempVector.begin(); it != tempVector.end(); ++it)
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{
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if ((*it).size() < 2)
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continue;
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equalityVector.push_back(*it);
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}
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}
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/////////////////////////////////////////////////////////////////////////////////////////////////////////////////
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GeomAbs_SurfaceType FaceTypedBase::getFaceType(const TopoDS_Face &faceIn)
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{
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Handle(Geom_Surface) surface = BRep_Tool::Surface(faceIn);
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GeomAdaptor_Surface surfaceTest(surface);
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return surfaceTest.GetType();
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}
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void FaceTypedBase::boundarySplit(const FaceVectorType &facesIn, std::vector<EdgeVectorType> &boundariesOut) const
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{
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EdgeVectorType bEdges;
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boundaryEdges(facesIn, bEdges);
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std::list<TopoDS_Edge> edges;
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std::copy(bEdges.begin(), bEdges.end(), back_inserter(edges));
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while(!edges.empty())
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{
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TopoDS_Vertex destination = TopExp::FirstVertex(edges.front(), Standard_True);
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TopoDS_Vertex lastVertex = TopExp::LastVertex(edges.front(), Standard_True);
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EdgeVectorType boundary;
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boundary.push_back(edges.front());
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edges.pop_front();
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//single edge closed check.
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if (destination.IsSame(lastVertex))
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{
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boundariesOut.push_back(boundary);
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continue;
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}
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bool closedSignal(false);
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std::list<TopoDS_Edge>::iterator it;
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for (it = edges.begin(); it != edges.end();)
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{
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TopoDS_Vertex currentVertex = TopExp::FirstVertex(*it, Standard_True);
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if (lastVertex.IsSame(currentVertex))
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{
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boundary.push_back(*it);
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lastVertex = TopExp::LastVertex(*it, Standard_True);
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edges.erase(it);
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it = edges.begin();
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if (lastVertex.IsSame(destination))
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{
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closedSignal = true;
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break;
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}
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continue;
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}
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++it;
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}
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if (closedSignal)
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boundariesOut.push_back(boundary);
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}
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}
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///////////////////////////////////////////////////////////////////////////////////////////////////////
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FaceTypedPlane::FaceTypedPlane() : FaceTypedBase(GeomAbs_Plane)
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{
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}
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bool FaceTypedPlane::isEqual(const TopoDS_Face &faceOne, const TopoDS_Face &faceTwo) const
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{
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Handle(Geom_Plane) planeSurfaceOne = Handle(Geom_Plane)::DownCast(BRep_Tool::Surface(faceOne));
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Handle(Geom_Plane) planeSurfaceTwo = Handle(Geom_Plane)::DownCast(BRep_Tool::Surface(faceTwo));
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if (planeSurfaceOne.IsNull() || planeSurfaceTwo.IsNull())
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return false;//error?
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gp_Pln planeOne(planeSurfaceOne->Pln());
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gp_Pln planeTwo(planeSurfaceTwo->Pln());
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return (planeOne.Position().Direction().IsParallel(planeTwo.Position().Direction(), Precision::Confusion()) &&
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planeOne.Distance(planeTwo.Position().Location()) < Precision::Confusion());
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}
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GeomAbs_SurfaceType FaceTypedPlane::getType() const
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{
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return GeomAbs_Plane;
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}
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TopoDS_Face FaceTypedPlane::buildFace(const FaceVectorType &faces) const
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{
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std::vector<TopoDS_Wire> wires;
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std::vector<EdgeVectorType> splitEdges;
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this->boundarySplit(faces, splitEdges);
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if (splitEdges.empty())
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return TopoDS_Face();
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std::vector<EdgeVectorType>::iterator splitIt;
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for (splitIt = splitEdges.begin(); splitIt != splitEdges.end(); ++splitIt)
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{
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BRepLib_MakeWire wireMaker;
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EdgeVectorType::iterator it;
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for (it = (*splitIt).begin(); it != (*splitIt).end(); ++it)
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wireMaker.Add(*it);
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TopoDS_Wire currentWire = wireMaker.Wire();
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wires.push_back(currentWire);
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}
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std::sort(wires.begin(), wires.end(), ModelRefine::WireSort());
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BRepLib_MakeFace faceMaker(wires.at(0), Standard_True);
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if (faceMaker.Error() != BRepLib_FaceDone)
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return TopoDS_Face();
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TopoDS_Face current = faceMaker.Face();
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if (wires.size() > 1)
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{
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ShapeFix_Face faceFix(current);
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faceFix.SetContext(new ShapeBuild_ReShape());
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for (size_t index(1); index<wires.size(); ++index)
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faceFix.Add(wires.at(index));
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faceFix.Perform();
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if (faceFix.Status(ShapeExtend_FAIL))
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return TopoDS_Face();
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faceFix.FixOrientation();
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faceFix.Perform();
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if(faceFix.Status(ShapeExtend_FAIL))
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return TopoDS_Face();
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current = faceFix.Face();
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}
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return current;
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}
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FaceTypedPlane& ModelRefine::getPlaneObject()
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{
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static FaceTypedPlane object;
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return object;
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}
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/////////////////////////////////////////////////////////////////////////////////////////////////////////
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FaceTypedCylinder::FaceTypedCylinder() : FaceTypedBase(GeomAbs_Cylinder)
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{
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}
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bool FaceTypedCylinder::isEqual(const TopoDS_Face &faceOne, const TopoDS_Face &faceTwo) const
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{
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//check if these handles are valid?
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Handle(Geom_CylindricalSurface) surfaceOne = Handle(Geom_CylindricalSurface)::DownCast(BRep_Tool::Surface(faceOne));
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Handle(Geom_CylindricalSurface) surfaceTwo = Handle(Geom_CylindricalSurface)::DownCast(BRep_Tool::Surface(faceTwo));
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if (surfaceOne.IsNull() || surfaceTwo.IsNull())
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return false;//probably need an error
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gp_Cylinder cylinderOne = surfaceOne->Cylinder();
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gp_Cylinder cylinderTwo = surfaceTwo->Cylinder();
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if (cylinderOne.Radius() != cylinderTwo.Radius())
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return false;
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if (!cylinderOne.Axis().IsCoaxial(cylinderTwo.Axis(), Precision::Confusion(), Precision::Confusion()))
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return false;
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return true;
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}
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GeomAbs_SurfaceType FaceTypedCylinder::getType() const
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{
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return GeomAbs_Cylinder;
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}
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TopoDS_Face FaceTypedCylinder::buildFace(const FaceVectorType &faces) const
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{
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static TopoDS_Face dummy;
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std::vector<EdgeVectorType> boundaries;
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boundarySplit(faces, boundaries);
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if (boundaries.size() < 1)
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return dummy;
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//make wires
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std::vector<TopoDS_Wire> wires;
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std::vector<EdgeVectorType>::iterator boundaryIt;
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for (boundaryIt = boundaries.begin(); boundaryIt != boundaries.end(); ++boundaryIt)
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{
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BRepLib_MakeWire wireMaker;
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EdgeVectorType::iterator it;
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for (it = (*boundaryIt).begin(); it != (*boundaryIt).end(); ++it)
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wireMaker.Add(*it);
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if (wireMaker.Error() != BRepLib_WireDone)
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return dummy;
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wires.push_back(wireMaker.Wire());
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}
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if (wires.size() < 1)
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return dummy;
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std::sort(wires.begin(), wires.end(), ModelRefine::WireSort());
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//make face from surface and outer wire.
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Handle(Geom_CylindricalSurface) surface = Handle(Geom_CylindricalSurface)::DownCast(BRep_Tool::Surface(faces.at(0)));
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std::vector<TopoDS_Wire>::iterator wireIt;
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wireIt = wires.begin();
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BRepBuilderAPI_MakeFace faceMaker(surface, *wireIt);
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if (!faceMaker.IsDone())
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return dummy;
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//add additional boundaries.
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for (wireIt++; wireIt != wires.end(); ++wireIt)
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{
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faceMaker.Add(*wireIt);
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if (!faceMaker.IsDone())
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return dummy;
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}
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//fix newly constructed face. Orientation doesn't seem to get fixed the first call.
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ShapeFix_Face faceFixer(faceMaker.Face());
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faceFixer.SetContext(new ShapeBuild_ReShape());
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faceFixer.Perform();
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if (faceFixer.Status(ShapeExtend_FAIL))
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return dummy;
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faceFixer.FixOrientation();
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faceFixer.Perform();
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if (faceFixer.Status(ShapeExtend_FAIL))
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return dummy;
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return faceFixer.Face();
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}
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void FaceTypedCylinder::boundarySplit(const FaceVectorType &facesIn, std::vector<EdgeVectorType> &boundariesOut) const
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{
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//get all the seam edges
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EdgeVectorType seamEdges;
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FaceVectorType::const_iterator faceIt;
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for (faceIt = facesIn.begin(); faceIt != facesIn.end(); ++faceIt)
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{
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TopExp_Explorer explorer;
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for (explorer.Init(*faceIt, TopAbs_EDGE); explorer.More(); explorer.Next())
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{
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ShapeAnalysis_Edge edgeCheck;
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if(edgeCheck.IsSeam(TopoDS::Edge(explorer.Current()), *faceIt))
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seamEdges.push_back(TopoDS::Edge(explorer.Current()));
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}
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}
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//normal edges.
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EdgeVectorType normalEdges;
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ModelRefine::boundaryEdges(facesIn, normalEdges);
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//put seam edges in front.the idea is that we always want to traverse along a seam edge if possible.
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std::list<TopoDS_Edge> sortedEdges;
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std::copy(normalEdges.begin(), normalEdges.end(), back_inserter(sortedEdges));
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std::copy(seamEdges.begin(), seamEdges.end(), front_inserter(sortedEdges));
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while (!sortedEdges.empty())
|
|
{
|
|
//detecting closed boundary works best if we start off of the seam edges.
|
|
TopoDS_Vertex destination = TopExp::FirstVertex(sortedEdges.back(), Standard_True);
|
|
TopoDS_Vertex lastVertex = TopExp::LastVertex(sortedEdges.back(), Standard_True);
|
|
bool closedSignal(false);
|
|
std::list<TopoDS_Edge> boundary;
|
|
boundary.push_back(sortedEdges.back());
|
|
sortedEdges.pop_back();
|
|
|
|
std::list<TopoDS_Edge>::iterator sortedIt;
|
|
for (sortedIt = sortedEdges.begin(); sortedIt != sortedEdges.end();)
|
|
{
|
|
TopoDS_Vertex currentVertex = TopExp::FirstVertex(*sortedIt, Standard_True);
|
|
|
|
//Seam edges lie on top of each other. i.e. same. and we remove every match from the list
|
|
//so we don't actually ever compare the same edge.
|
|
if ((*sortedIt).IsSame(boundary.back()))
|
|
{
|
|
++sortedIt;
|
|
continue;
|
|
}
|
|
if (lastVertex.IsSame(currentVertex))
|
|
{
|
|
boundary.push_back(*sortedIt);
|
|
lastVertex = TopExp::LastVertex(*sortedIt, Standard_True);
|
|
if (lastVertex.IsSame(destination))
|
|
{
|
|
closedSignal = true;
|
|
sortedEdges.erase(sortedIt);
|
|
break;
|
|
}
|
|
sortedEdges.erase(sortedIt);
|
|
sortedIt = sortedEdges.begin();
|
|
continue;
|
|
}
|
|
++sortedIt;
|
|
}
|
|
if (closedSignal)
|
|
{
|
|
EdgeVectorType temp;
|
|
std::copy(boundary.begin(), boundary.end(), std::back_inserter(temp));
|
|
boundariesOut.push_back(temp);
|
|
}
|
|
}
|
|
}
|
|
|
|
FaceTypedCylinder& ModelRefine::getCylinderObject()
|
|
{
|
|
static FaceTypedCylinder object;
|
|
return object;
|
|
}
|
|
|
|
/////////////////////////////////////////////////////////////////////////////////////////////////////////
|
|
|
|
// TODO: change this version after occ fix. Freecad Mantis 1450
|
|
#if OCC_VERSION_HEX <= 0x070000
|
|
void collectConicEdges(const TopoDS_Shell &shell, TopTools_IndexedMapOfShape &map)
|
|
{
|
|
TopTools_IndexedMapOfShape edges;
|
|
TopExp::MapShapes(shell, TopAbs_EDGE, edges);
|
|
|
|
for (int index = 1; index <= edges.Extent(); ++index)
|
|
{
|
|
const TopoDS_Edge ¤tEdge = TopoDS::Edge(edges.FindKey(index));
|
|
if (currentEdge.IsNull())
|
|
continue;
|
|
TopLoc_Location location;
|
|
Standard_Real first, last;
|
|
const Handle_Geom_Curve &curve = BRep_Tool::Curve(currentEdge, location, first, last);
|
|
if (curve.IsNull())
|
|
continue;
|
|
if (curve->IsKind(STANDARD_TYPE(Geom_Conic)))
|
|
map.Add(currentEdge);
|
|
}
|
|
}
|
|
#endif
|
|
|
|
FaceUniter::FaceUniter(const TopoDS_Shell &shellIn) : modifiedSignal(false)
|
|
{
|
|
workShell = shellIn;
|
|
}
|
|
|
|
bool FaceUniter::process()
|
|
{
|
|
if (workShell.IsNull())
|
|
return false;
|
|
modifiedShapes.clear();
|
|
deletedShapes.clear();
|
|
typeObjects.push_back(&getPlaneObject());
|
|
typeObjects.push_back(&getCylinderObject());
|
|
//add more face types.
|
|
|
|
ModelRefine::FaceTypeSplitter splitter;
|
|
splitter.addShell(workShell);
|
|
std::vector<FaceTypedBase *>::iterator typeIt;
|
|
for(typeIt = typeObjects.begin(); typeIt != typeObjects.end(); ++typeIt)
|
|
splitter.registerType((*typeIt)->getType());
|
|
splitter.split();
|
|
|
|
ModelRefine::FaceVectorType facesToRemove;
|
|
ModelRefine::FaceVectorType facesToSew;
|
|
|
|
ModelRefine::FaceAdjacencySplitter adjacencySplitter(workShell);
|
|
|
|
for(typeIt = typeObjects.begin(); typeIt != typeObjects.end(); ++typeIt)
|
|
{
|
|
ModelRefine::FaceVectorType typedFaces = splitter.getTypedFaceVector((*typeIt)->getType());
|
|
ModelRefine::FaceEqualitySplitter equalitySplitter;
|
|
equalitySplitter.split(typedFaces, *typeIt);
|
|
for (std::size_t indexEquality(0); indexEquality < equalitySplitter.getGroupCount(); ++indexEquality)
|
|
{
|
|
adjacencySplitter.split(equalitySplitter.getGroup(indexEquality));
|
|
// std::cout << " adjacency group count: " << adjacencySplitter.getGroupCount() << std::endl;
|
|
for (std::size_t adjacentIndex(0); adjacentIndex < adjacencySplitter.getGroupCount(); ++adjacentIndex)
|
|
{
|
|
// std::cout << " face count is: " << adjacencySplitter.getGroup(adjacentIndex).size() << std::endl;
|
|
TopoDS_Face newFace = (*typeIt)->buildFace(adjacencySplitter.getGroup(adjacentIndex));
|
|
if (!newFace.IsNull())
|
|
{
|
|
facesToSew.push_back(newFace);
|
|
if (facesToRemove.capacity() <= facesToRemove.size() + adjacencySplitter.getGroup(adjacentIndex).size())
|
|
facesToRemove.reserve(facesToRemove.size() + adjacencySplitter.getGroup(adjacentIndex).size());
|
|
FaceVectorType temp = adjacencySplitter.getGroup(adjacentIndex);
|
|
facesToRemove.insert(facesToRemove.end(), temp.begin(), temp.end());
|
|
// the first shape will be marked as modified, i.e. replaced by newFace, all others are marked as deleted
|
|
// jrheinlaender: IMHO this is not correct because references to the deleted faces will be broken, whereas they should
|
|
// be replaced by references to the new face. To achieve this all shapes should be marked as
|
|
// modified, producing one single new face. This is the inverse behaviour to faces that are split e.g.
|
|
// by a boolean cut, where one old shape is marked as modified, producing multiple new shapes
|
|
if (!temp.empty())
|
|
{
|
|
for (FaceVectorType::iterator f = temp.begin(); f != temp.end(); ++f)
|
|
modifiedShapes.push_back(std::make_pair(*f, newFace));
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
if (facesToSew.size() > 0)
|
|
{
|
|
modifiedSignal = true;
|
|
workShell = ModelRefine::removeFaces(workShell, facesToRemove);
|
|
TopExp_Explorer xp;
|
|
bool emptyShell = true;
|
|
for (xp.Init(workShell, TopAbs_FACE); xp.More(); xp.Next())
|
|
{
|
|
emptyShell = false;
|
|
break;
|
|
}
|
|
|
|
if (!emptyShell || facesToSew.size() > 1)
|
|
{
|
|
BRepBuilderAPI_Sewing sew;
|
|
sew.Add(workShell);
|
|
FaceVectorType::iterator sewIt;
|
|
for(sewIt = facesToSew.begin(); sewIt != facesToSew.end(); ++sewIt)
|
|
sew.Add(*sewIt);
|
|
sew.Perform();
|
|
try {
|
|
workShell = TopoDS::Shell(sew.SewedShape());
|
|
} catch (Standard_Failure) {
|
|
return false;
|
|
}
|
|
// update the list of modifications
|
|
for (std::vector<ShapePairType>::iterator it = modifiedShapes.begin(); it != modifiedShapes.end(); ++it)
|
|
{
|
|
if (sew.IsModified(it->second))
|
|
{
|
|
it->second = sew.Modified(it->second);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
// workShell has no more faces and we add exactly one face
|
|
BRep_Builder builder;
|
|
builder.MakeShell(workShell);
|
|
FaceVectorType::iterator sewIt;
|
|
for(sewIt = facesToSew.begin(); sewIt != facesToSew.end(); ++sewIt)
|
|
builder.Add(workShell, *sewIt);
|
|
}
|
|
|
|
BRepLib_FuseEdges edgeFuse(workShell);
|
|
// TODO: change this version after occ fix. Freecad Mantis 1450
|
|
#if OCC_VERSION_HEX <= 0x070000
|
|
TopTools_IndexedMapOfShape map;
|
|
collectConicEdges(workShell, map);
|
|
edgeFuse.AvoidEdges(map);
|
|
#endif
|
|
TopTools_DataMapOfShapeShape affectedFaces;
|
|
edgeFuse.Faces(affectedFaces);
|
|
TopTools_DataMapIteratorOfDataMapOfShapeShape mapIt;
|
|
for (mapIt.Initialize(affectedFaces); mapIt.More(); mapIt.Next())
|
|
{
|
|
ShapeFix_Face faceFixer(TopoDS::Face(mapIt.Value()));
|
|
faceFixer.Perform();
|
|
}
|
|
workShell = TopoDS::Shell(edgeFuse.Shape());
|
|
// update the list of modifications
|
|
TopTools_DataMapOfShapeShape faceMap;
|
|
edgeFuse.Faces(faceMap);
|
|
for (mapIt.Initialize(faceMap); mapIt.More(); mapIt.Next())
|
|
{
|
|
bool isModifiedFace = false;
|
|
for (std::vector<ShapePairType>::iterator it = modifiedShapes.begin(); it != modifiedShapes.end(); ++it)
|
|
{
|
|
if (mapIt.Key().IsSame(it->second)) {
|
|
// Note: IsEqual() for some reason does not work
|
|
it->second = mapIt.Value();
|
|
isModifiedFace = true;
|
|
}
|
|
}
|
|
if (!isModifiedFace)
|
|
{
|
|
// Catch faces that were not united but whose boundary was changed (probably because
|
|
// several adjacent faces were united)
|
|
// See https://sourceforge.net/apps/mantisbt/free-cad/view.php?id=873
|
|
modifiedShapes.push_back(std::make_pair(mapIt.Key(), mapIt.Value()));
|
|
}
|
|
}
|
|
// Handle edges that were fused. See https://sourceforge.net/apps/mantisbt/free-cad/view.php?id=873
|
|
TopTools_DataMapOfIntegerListOfShape oldEdges;
|
|
TopTools_DataMapOfIntegerShape newEdges;
|
|
edgeFuse.Edges(oldEdges);
|
|
edgeFuse.ResultEdges(newEdges);
|
|
TopTools_DataMapIteratorOfDataMapOfIntegerListOfShape edgeMapIt;
|
|
for (edgeMapIt.Initialize(oldEdges); edgeMapIt.More(); edgeMapIt.Next())
|
|
{
|
|
const TopTools_ListOfShape& edges = edgeMapIt.Value();
|
|
int idx = edgeMapIt.Key();
|
|
TopTools_ListIteratorOfListOfShape edgeIt;
|
|
for (edgeIt.Initialize(edges); edgeIt.More(); edgeIt.Next())
|
|
{
|
|
modifiedShapes.push_back(std::make_pair(edgeIt.Value(), newEdges(idx)));
|
|
}
|
|
// TODO: Handle vertices that have disappeared in the fusion of the edges
|
|
}
|
|
}
|
|
return true;
|
|
}
|
|
|
|
/////////////////////////////////////////////////////////////////////////////////////////////////////////
|
|
|
|
//BRepBuilderAPI_RefineModel implement a way to log all modifications on the faces
|
|
|
|
namespace OCC
|
|
{
|
|
BRepBuilderAPI_RefineModel::BRepBuilderAPI_RefineModel(const TopoDS_Shape& shape)
|
|
{
|
|
myShape = shape;
|
|
Build();
|
|
}
|
|
|
|
void BRepBuilderAPI_RefineModel::Build()
|
|
{
|
|
if (myShape.IsNull())
|
|
Standard_Failure::Raise("Cannot remove splitter from empty shape");
|
|
|
|
if (myShape.ShapeType() == TopAbs_SOLID) {
|
|
const TopoDS_Solid &solid = TopoDS::Solid(myShape);
|
|
BRepBuilderAPI_MakeSolid mkSolid;
|
|
TopExp_Explorer it;
|
|
for (it.Init(solid, TopAbs_SHELL); it.More(); it.Next()) {
|
|
const TopoDS_Shell ¤tShell = TopoDS::Shell(it.Current());
|
|
ModelRefine::FaceUniter uniter(currentShell);
|
|
if (uniter.process()) {
|
|
if (uniter.isModified()) {
|
|
const TopoDS_Shell &newShell = uniter.getShell();
|
|
mkSolid.Add(newShell);
|
|
LogModifications(uniter);
|
|
}
|
|
else {
|
|
mkSolid.Add(currentShell);
|
|
}
|
|
}
|
|
else {
|
|
Standard_Failure::Raise("Removing splitter failed");
|
|
}
|
|
}
|
|
myShape = mkSolid.Solid();
|
|
}
|
|
else if (myShape.ShapeType() == TopAbs_SHELL) {
|
|
const TopoDS_Shell& shell = TopoDS::Shell(myShape);
|
|
ModelRefine::FaceUniter uniter(shell);
|
|
if (uniter.process()) {
|
|
// TODO: Why not check for uniter.isModified()?
|
|
myShape = uniter.getShell();
|
|
LogModifications(uniter);
|
|
}
|
|
else {
|
|
Standard_Failure::Raise("Removing splitter failed");
|
|
}
|
|
}
|
|
else if (myShape.ShapeType() == TopAbs_COMPOUND) {
|
|
BRep_Builder builder;
|
|
TopoDS_Compound comp;
|
|
builder.MakeCompound(comp);
|
|
|
|
TopExp_Explorer xp;
|
|
// solids
|
|
for (xp.Init(myShape, TopAbs_SOLID); xp.More(); xp.Next()) {
|
|
const TopoDS_Solid &solid = TopoDS::Solid(xp.Current());
|
|
BRepTools_ReShape reshape;
|
|
TopExp_Explorer it;
|
|
for (it.Init(solid, TopAbs_SHELL); it.More(); it.Next()) {
|
|
const TopoDS_Shell ¤tShell = TopoDS::Shell(it.Current());
|
|
ModelRefine::FaceUniter uniter(currentShell);
|
|
if (uniter.process()) {
|
|
if (uniter.isModified()) {
|
|
const TopoDS_Shell &newShell = uniter.getShell();
|
|
reshape.Replace(currentShell, newShell);
|
|
LogModifications(uniter);
|
|
}
|
|
}
|
|
}
|
|
builder.Add(comp, reshape.Apply(solid));
|
|
}
|
|
// free shells
|
|
for (xp.Init(myShape, TopAbs_SHELL, TopAbs_SOLID); xp.More(); xp.Next()) {
|
|
const TopoDS_Shell& shell = TopoDS::Shell(xp.Current());
|
|
ModelRefine::FaceUniter uniter(shell);
|
|
if (uniter.process()) {
|
|
builder.Add(comp, uniter.getShell());
|
|
LogModifications(uniter);
|
|
}
|
|
}
|
|
// the rest
|
|
for (xp.Init(myShape, TopAbs_FACE, TopAbs_SHELL); xp.More(); xp.Next()) {
|
|
if (!xp.Current().IsNull())
|
|
builder.Add(comp, xp.Current());
|
|
}
|
|
for (xp.Init(myShape, TopAbs_WIRE, TopAbs_FACE); xp.More(); xp.Next()) {
|
|
if (!xp.Current().IsNull())
|
|
builder.Add(comp, xp.Current());
|
|
}
|
|
for (xp.Init(myShape, TopAbs_EDGE, TopAbs_WIRE); xp.More(); xp.Next()) {
|
|
if (!xp.Current().IsNull())
|
|
builder.Add(comp, xp.Current());
|
|
}
|
|
for (xp.Init(myShape, TopAbs_VERTEX, TopAbs_EDGE); xp.More(); xp.Next()) {
|
|
if (!xp.Current().IsNull())
|
|
builder.Add(comp, xp.Current());
|
|
}
|
|
|
|
myShape = comp;
|
|
}
|
|
|
|
Done();
|
|
}
|
|
|
|
void BRepBuilderAPI_RefineModel::LogModifications(const ModelRefine::FaceUniter& uniter)
|
|
{
|
|
const std::vector<ShapePairType>& modShapes = uniter.getModifiedShapes();
|
|
for (std::vector<ShapePairType>::const_iterator it = modShapes.begin(); it != modShapes.end(); ++it) {
|
|
TopTools_ListOfShape list;
|
|
list.Append(it->second);
|
|
myModified.Bind(it->first, list);
|
|
}
|
|
const ShapeVectorType& delShapes = uniter.getDeletedShapes();
|
|
for (ShapeVectorType::const_iterator it = delShapes.begin(); it != delShapes.end(); ++it) {
|
|
myDeleted.Append(*it);
|
|
}
|
|
}
|
|
|
|
const TopTools_ListOfShape& BRepBuilderAPI_RefineModel::Modified(const TopoDS_Shape& S)
|
|
{
|
|
if (myModified.IsBound(S))
|
|
return myModified.Find(S);
|
|
else
|
|
return myEmptyList;
|
|
}
|
|
|
|
Standard_Boolean BRepBuilderAPI_RefineModel::IsDeleted(const TopoDS_Shape& S)
|
|
{
|
|
TopTools_ListIteratorOfListOfShape it;
|
|
for (it.Initialize(myDeleted); it.More(); it.Next())
|
|
{
|
|
if (it.Value().IsSame(S))
|
|
return Standard_True;
|
|
}
|
|
|
|
return Standard_False;
|
|
}
|
|
} |