144 lines
2.7 KiB
C++
144 lines
2.7 KiB
C++
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#include "Stdafx.h"
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#include "SectionAlgo.h"
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SectionAlgo::SectionAlgo(void)
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{
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}
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SectionAlgo::SectionAlgo( TopoDS_Shape shape1, TopoDS_Shape shape2 )
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{
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this->S1 = shape1;
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this->S2 = shape2;
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isDone = false;
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}
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SectionAlgo::~SectionAlgo(void)
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{
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}
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TopoDS_Shape SectionAlgo::SectionFF(TopoDS_Face face1, TopoDS_Face face2)
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{
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TopoDS_Compound TopoShape;
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BRep_Builder b;
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b.MakeCompound(TopoShape);
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try
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{
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BRepAlgoAPI_Section sec(face1,face2,Standard_False); //update by Yu 2012-09-30
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sec.ComputePCurveOn1(Standard_True);
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sec.ComputePCurveOn2(Standard_True);
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sec.Approximation(true);
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sec.Build();
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if(!sec.IsDone())
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{
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return TopoShape;
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}
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TopoDS_Shape S = sec.Shape();
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for(TopExp_Explorer ex(S, TopAbs_EDGE);ex.More(); ex.Next())
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{
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TopoDS_Edge edge = TopoDS::Edge(ex.Current());
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if(sec.HasAncestorFaceOn1(edge, face1) && sec.HasAncestorFaceOn2(edge, face2))
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{
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b.Add(TopoShape, edge);
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}
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}
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}
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catch (Standard_Failure e)
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{
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throw e;
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}
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return TopoShape;
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}
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TopoDS_Shape SectionAlgo::SectionSS(TopoDS_Shape shape1, TopoDS_Shape shape2)
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{
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TopoDS_Compound TopoShape;
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BRep_Builder b;
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b.MakeCompound(TopoShape);
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map<int, TopoDS_Edge> mapEdge;
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for(TopExp_Explorer ex(shape1, TopAbs_FACE); ex.More(); ex.Next())
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{
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TopoDS_Face face1 = TopoDS::Face(ex.Current());
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TopoDS_Shape shape = SectionFS(face1, shape2);
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for(TopExp_Explorer ex1(shape, TopAbs_EDGE); ex1.More(); ex1.Next())
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{
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mapEdge.insert(make_pair(mapEdge.size(), TopoDS::Edge(ex1.Current())));
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}
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}
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vector<vector<int>> edgeIndex;
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GetWireSingleEdges(mapEdge,edgeIndex);
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for(int i = 0; i < edgeIndex.size(); i++)
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{
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vector<int> edges = edgeIndex[i];
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for(int j = 0; j < edges.size(); j++)
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{
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b.Add(TopoShape, mapEdge[edges[j]]);
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}
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}
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return TopoShape;
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}
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TopoDS_Shape SectionAlgo::SectionFS(TopoDS_Face face1, TopoDS_Shape shape2)
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{
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TopoDS_Compound TopoShape;
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BRep_Builder b;
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b.MakeCompound(TopoShape);
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map<int, TopoDS_Edge> mapEdge;
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for(TopExp_Explorer ex(shape2, TopAbs_FACE); ex.More(); ex.Next())
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{
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TopoDS_Face face2 = TopoDS::Face(ex.Current());
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TopoDS_Shape shape = SectionFF(face1, face2);
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for(TopExp_Explorer ex1(shape, TopAbs_EDGE); ex1.More(); ex1.Next())
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{
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mapEdge.insert(make_pair(mapEdge.size(), TopoDS::Edge(ex1.Current())));
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}
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}
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vector<vector<int>> edgeIndex;
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GetWireSingleEdges(mapEdge,edgeIndex);
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for(int i = 0; i < edgeIndex.size(); i++)
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{
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vector<int> edges = edgeIndex[i];
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for(int j = 0; j < edges.size(); j++)
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{
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b.Add(TopoShape, mapEdge[edges[j]]);
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}
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}
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return TopoShape;
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}
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void SectionAlgo::Perform()
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{
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try
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{
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this->result = SectionSS(S1, S2);
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}
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catch (Standard_Failure e)
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{
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return;
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}
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if(!result.IsNull())
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{
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isDone = true;
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}
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}
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