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bad76cfc7a
1. Method BRepOffset_Tool::Inter3D is modified: now selection of proper edges is performed here, they are not concatenated into one edge if they go through a vertex on a boundary. 2. Method BRepOffset_Inter3d::ConnexIntByInt is modified: selection of edges is eliminated. 3. Method BRepOffset_Inter2d::ConnexIntByInt is corrected to be able to process seam edges correct.
1803 lines
65 KiB
C++
1803 lines
65 KiB
C++
// Created on: 1996-09-03
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// Created by: Yves FRICAUD
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// Copyright (c) 1996-1999 Matra Datavision
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// Copyright (c) 1999-2014 OPEN CASCADE SAS
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//
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// This file is part of Open CASCADE Technology software library.
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//
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// This library is free software; you can redistribute it and/or modify it under
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// the terms of the GNU Lesser General Public License version 2.1 as published
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// by the Free Software Foundation, with special exception defined in the file
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// OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
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// distribution for complete text of the license and disclaimer of any warranty.
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//
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// Alternatively, this file may be used under the terms of Open CASCADE
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// commercial license or contractual agreement.
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// Modified by skv - Wed Dec 24 18:08:39 2003 OCC4455
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#include <Adaptor2d_HCurve2d.hxx>
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#include <Adaptor3d_CurveOnSurface.hxx>
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#include <Adaptor3d_HSurface.hxx>
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#include <Bnd_Box.hxx>
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#include <BndLib_Add3dCurve.hxx>
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#include <BOPTools_AlgoTools.hxx>
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#include <BRep_Builder.hxx>
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#include <BRep_CurveRepresentation.hxx>
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#include <BRep_GCurve.hxx>
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#include <BRep_ListIteratorOfListOfCurveRepresentation.hxx>
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#include <BRep_TEdge.hxx>
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#include <BRep_Tool.hxx>
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#include <BRepAdaptor_Curve.hxx>
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#include <BRepAdaptor_Curve2d.hxx>
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#include <BRepAdaptor_Surface.hxx>
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#include <BRepAlgo_AsDes.hxx>
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#include <BRepLib.hxx>
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#include <BRepLib_MakeVertex.hxx>
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#include <BRepOffset_Inter2d.hxx>
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#include <BRepOffset_Offset.hxx>
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#include <BRepOffset_Tool.hxx>
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#include <BRepTools.hxx>
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#include <BRepTools_WireExplorer.hxx>
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#include <Geom2d_BezierCurve.hxx>
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#include <Geom2d_BSplineCurve.hxx>
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#include <Geom2d_Line.hxx>
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#include <Geom2d_TrimmedCurve.hxx>
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#include <Geom2dAdaptor_HCurve.hxx>
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#include <Geom2dConvert_CompCurveToBSplineCurve.hxx>
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#include <Geom2dInt_GInter.hxx>
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#include <Geom_BSplineCurve.hxx>
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#include <Geom_BSplineSurface.hxx>
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#include <Geom_ConicalSurface.hxx>
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#include <Geom_CylindricalSurface.hxx>
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#include <Geom_Line.hxx>
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#include <Geom_Plane.hxx>
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#include <Geom_TrimmedCurve.hxx>
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#include <GeomAdaptor_HSurface.hxx>
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#include <GeomAdaptor_Surface.hxx>
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#include <GeomAPI_ProjectPointOnCurve.hxx>
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#include <GeomConvert_CompCurveToBSplineCurve.hxx>
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#include <GeomLib.hxx>
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#include <GeomProjLib.hxx>
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#include <gp_Pnt.hxx>
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#include <IntRes2d_IntersectionPoint.hxx>
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#include <IntRes2d_IntersectionSegment.hxx>
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#include <Precision.hxx>
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#include <TColGeom2d_SequenceOfCurve.hxx>
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#include <TColgp_Array1OfPnt2d.hxx>
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#include <TColgp_SequenceOfPnt.hxx>
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#include <TopExp.hxx>
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#include <TopExp_Explorer.hxx>
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#include <TopoDS.hxx>
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#include <TopoDS_Edge.hxx>
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#include <TopoDS_Face.hxx>
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#include <TopoDS_Iterator.hxx>
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#include <TopoDS_Vertex.hxx>
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#include <TopoDS_Wire.hxx>
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#include <TopTools_DataMapIteratorOfDataMapOfShapeListOfShape.hxx>
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#include <TopTools_ListIteratorOfListOfShape.hxx>
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#include <TopTools_ListOfShape.hxx>
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#include <stdio.h>
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#ifdef DRAW
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#include <DBRep.hxx>
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#include <Geom2d_BoundedCurve.hxx>
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#include <Geom_BoundedSurface.hxx>
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#include <Geom_BoundedCurve.hxx>
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#include <BRep_CurveOnSurface.hxx>
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#include <Geom_Surface.hxx>
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Standard_Boolean Inter2dAffichInt2d;
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static Standard_Integer NbF2d = 0;
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static Standard_Integer NbE2d = 0;
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static Standard_Integer NbNewVertices = 0;
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#endif
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//=======================================================================
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//function : CommonVertex
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//purpose :
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//=======================================================================
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static TopoDS_Vertex CommonVertex(TopoDS_Edge& E1,
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TopoDS_Edge& E2)
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{
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TopoDS_Vertex V1[2],V2[2],V;
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//
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TopExp::Vertices(E1,V1[0],V1[1], Standard_True);
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TopExp::Vertices(E2,V2[0],V2[1], Standard_True);
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// The first edge is the current one, the second edge is the next one.
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// We check last vertex of the first edge first.
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if (V1[1].IsSame(V2[0]) || V1[1].IsSame(V2[1])) return V1[1];
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if (V1[0].IsSame(V2[0]) || V1[0].IsSame(V2[1])) return V1[0];
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//
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return V;
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}
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static Standard_Boolean IsOrientationChanged(TopTools_IndexedMapOfShape& theMap,
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const TopoDS_Edge& theEdge)
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{
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Standard_Boolean IsOrChanged = Standard_False;
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if (!theMap.Contains(theEdge))
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theMap.Add(theEdge);
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else
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{
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Standard_Integer anInd = theMap.FindIndex(theEdge);
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const TopoDS_Shape& anEdge = theMap(anInd);
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if (theEdge.Orientation() != anEdge.Orientation())
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{
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theMap.Substitute( anInd, theEdge );
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IsOrChanged = Standard_True;
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}
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}
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return IsOrChanged;
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}
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//=======================================================================
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//function : Store
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//purpose : Store the vertices <theLV> into AsDes for the edge <theEdge>.
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// The vertices are added despite of the coincidence with
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// already added vertices. When all vertices for all edges
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// are added the coinciding chains of vertices should be fused
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// using FuseVertices() method.
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//=======================================================================
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static void Store(const TopoDS_Edge& theEdge,
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const TopTools_ListOfShape& theLV,
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const Standard_Real theTol,
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const Standard_Boolean IsToUpdate,
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Handle(BRepAlgo_AsDes) theAsDes2d,
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TopTools_IndexedDataMapOfShapeListOfShape& theDMVV)
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{
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const TopTools_ListOfShape& aLVEx = theAsDes2d->Descendant(theEdge);
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if (!IsToUpdate && aLVEx.IsEmpty()) {
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if (theLV.Extent()) theAsDes2d->Add(theEdge, theLV);
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return;
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}
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//
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GeomAPI_ProjectPointOnCurve aProjPC;
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if (IsToUpdate) {
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Standard_Real aT1, aT2;
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const Handle(Geom_Curve)& aC = BRep_Tool::Curve(theEdge, aT1, aT2);
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aProjPC.Init(aC, aT1, aT2);
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}
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//
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TopTools_MapOfShape aMV;
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TopTools_ListIteratorOfListOfShape aIt(theLV);
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for (; aIt.More(); aIt.Next()) {
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const TopoDS_Vertex& aV = TopoDS::Vertex(aIt.Value());
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if (!aMV.Add(aV)) {
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continue;
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}
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//
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const gp_Pnt& aP = BRep_Tool::Pnt(aV);
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//
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TopTools_ListOfShape aLVC;
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TopTools_ListIteratorOfListOfShape aItEx(aLVEx);
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for (; aItEx.More(); aItEx.Next()) {
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const TopoDS_Vertex& aVEx = TopoDS::Vertex(aItEx.Value());
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if (aV.IsSame(aVEx)) {
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break;
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}
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const gp_Pnt& aPEx = BRep_Tool::Pnt(aVEx);
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if (aP.IsEqual(aPEx, theTol)) {
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aLVC.Append(aVEx);
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}
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}
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//
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if (aItEx.More()) {
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continue;
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}
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//
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if (IsToUpdate) {
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// get parameter of the vertex on the edge
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aProjPC.Perform(aP);
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if (!aProjPC.NbPoints()) {
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continue;
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}
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//
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if (aProjPC.LowerDistance() > theTol) {
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continue;
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}
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//
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Standard_Real aT = aProjPC.LowerDistanceParameter();
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TopoDS_Shape aLocalShape = aV.Oriented(TopAbs_INTERNAL);
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BRep_Builder().UpdateVertex(TopoDS::Vertex(aLocalShape), aT, theEdge, theTol);
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}
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else {
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BRep_Builder().UpdateVertex(aV, theTol);
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}
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//
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if (aLVC.Extent()) {
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TopTools_ListIteratorOfListOfShape aItLV(aLVC);
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for (; aItLV.More(); aItLV.Next()) {
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const TopoDS_Shape& aVC = aItLV.Value();
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TopTools_ListOfShape* pLV = theDMVV.ChangeSeek(aVC);
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if (!pLV) {
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pLV = &theDMVV(theDMVV.Add(aVC, TopTools_ListOfShape()));
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}
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pLV->Append(aV);
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}
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//
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TopTools_ListOfShape* pLV = theDMVV.ChangeSeek(aV);
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if (!pLV) {
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pLV = &theDMVV(theDMVV.Add(aV, TopTools_ListOfShape()));
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}
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pLV->Append(aLVC);
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}
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theAsDes2d->Add(theEdge, aV);
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}
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}
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//=======================================================================
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//function : Store
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//purpose : Store the intersection vertices between two edges into AsDes
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//=======================================================================
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static void Store (const TopoDS_Edge& theE1,
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const TopoDS_Edge& theE2,
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const TopTools_ListOfShape& theLV1,
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const TopTools_ListOfShape& theLV2,
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const Standard_Real theTol,
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Handle(BRepAlgo_AsDes) theAsDes2d,
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TopTools_IndexedDataMapOfShapeListOfShape& theDMVV)
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{
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for (Standard_Integer i = 0; i < 2; ++i) {
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const TopoDS_Edge& aE = !i ? theE1 : theE2;
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const TopTools_ListOfShape& aLV = !i ? theLV1 : theLV2;
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Store(aE, aLV, theTol, Standard_False, theAsDes2d, theDMVV);
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}
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}
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//=======================================================================
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//function : EdgeInter
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//purpose :
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//=======================================================================
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static void EdgeInter(const TopoDS_Face& F,
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const BRepAdaptor_Surface& BAsurf,
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const TopoDS_Edge& E1,
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const TopoDS_Edge& E2,
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const Handle(BRepAlgo_AsDes)& AsDes,
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Standard_Real Tol,
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Standard_Boolean WithOri,
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TopTools_IndexedDataMapOfShapeListOfShape& aDMVV)
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{
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#ifdef DRAW
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if (Inter2dAffichInt2d) {
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char name[256];
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sprintf(name,"E2d_%d_%d",NbF2d,NbE2d++);
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DBRep::Set(name,E1);
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sprintf(name,"E2d_%d_%d",NbF2d,NbE2d++);
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DBRep::Set(name,E2);
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}
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#endif
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if (E1.IsSame(E2))
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return;
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Standard_Real f[3],l[3];
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Standard_Real TolDub = 1.e-7;
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Standard_Integer i;
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BRep_Tool::Range(E1, f[1], l[1]);
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BRep_Tool::Range(E2, f[2], l[2]);
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BRepAdaptor_Curve CE1(E1,F);
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BRepAdaptor_Curve CE2(E2,F);
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TopoDS_Edge EI[3]; EI[1] = E1; EI[2] = E2;
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TopTools_ListOfShape LV1;
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TopTools_ListOfShape LV2;
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BRep_Builder B;
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TopoDS_Vertex CV;
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if (!TopExp::CommonVertex( E1, E2, CV ))
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{
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BRepLib::BuildCurve3d(E1);
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BRepLib::BuildCurve3d(E2);
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Standard_Real TolSum = BRep_Tool::Tolerance(E1) + BRep_Tool::Tolerance(E2);
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TolSum = Max( TolSum, 1.e-5 );
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TColgp_SequenceOfPnt ResPoints;
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TColStd_SequenceOfReal ResParamsOnE1, ResParamsOnE2;
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gp_Pnt DegPoint;
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Standard_Boolean WithDegen = BRep_Tool::Degenerated(E1) || BRep_Tool::Degenerated(E2);
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if (WithDegen)
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{
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Standard_Integer ideg = (BRep_Tool::Degenerated(E1))? 1 : 2;
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TopoDS_Iterator iter( EI[ideg] );
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if (iter.More())
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{
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const TopoDS_Vertex& vdeg = TopoDS::Vertex(iter.Value());
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DegPoint = BRep_Tool::Pnt(vdeg);
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}
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else
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{
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BRepAdaptor_Curve CEdeg( EI[ideg], F );
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DegPoint = CEdeg.Value( CEdeg.FirstParameter() );
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}
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}
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//
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Handle(Geom2d_Curve) pcurve1 = BRep_Tool::CurveOnSurface(E1, F, f[1], l[1]);
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Handle(Geom2d_Curve) pcurve2 = BRep_Tool::CurveOnSurface(E2, F, f[2], l[2]);
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Geom2dAdaptor_Curve GAC1(pcurve1, f[1], l[1]);
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Geom2dAdaptor_Curve GAC2(pcurve2, f[2], l[2]);
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Geom2dInt_GInter Inter2d( GAC1, GAC2, TolDub, TolDub );
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for (i = 1; i <= Inter2d.NbPoints(); i++)
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{
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gp_Pnt P3d;
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if (WithDegen)
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P3d = DegPoint;
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else
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{
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gp_Pnt2d P2d = Inter2d.Point(i).Value();
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P3d = BAsurf.Value( P2d.X(), P2d.Y() );
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}
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ResPoints.Append( P3d );
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ResParamsOnE1.Append( Inter2d.Point(i).ParamOnFirst() );
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ResParamsOnE2.Append( Inter2d.Point(i).ParamOnSecond() );
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}
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for (i = 1; i <= ResPoints.Length(); i++)
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{
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Standard_Real aT1 = ResParamsOnE1(i); //ponc1.Parameter();
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Standard_Real aT2 = ResParamsOnE2(i); //ponc2.Parameter();
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if (Precision::IsInfinite(aT1) || Precision::IsInfinite(aT2))
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{
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#ifdef OCCT_DEBUG
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cout << "Inter2d : Solution rejected due to infinite parameter"<<endl;
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#endif
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continue;
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}
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gp_Pnt P = ResPoints(i); //ponc1.Value();
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TopoDS_Vertex aNewVertex = BRepLib_MakeVertex(P);
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aNewVertex.Orientation(TopAbs_INTERNAL);
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B.UpdateVertex( aNewVertex, aT1, E1, Tol );
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B.UpdateVertex( aNewVertex, aT2, E2, Tol );
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gp_Pnt P1 = CE1.Value(aT1);
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gp_Pnt P2 = CE2.Value(aT2);
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Standard_Real dist1, dist2, dist3;
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dist1 = P1.Distance(P);
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dist2 = P2.Distance(P);
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dist3 = P1.Distance(P2);
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dist1 = Max( dist1, dist2 );
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dist1 = Max( dist1, dist3 );
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B.UpdateVertex( aNewVertex, dist1 );
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#ifdef OCCT_DEBUG
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if (aT1 < f[1]-Tol || aT1 > l[1]+Tol)
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{
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cout << "out of limit"<<endl;
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cout<<"aT1 = "<<aT1<<", f[1] = "<<f[1]<<", l[1] = "<<l[1]<<endl;
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}
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if (aT2 < f[2]-Tol || aT2 > l[2]+Tol)
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{
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cout << "out of limit"<<endl;
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cout<<"aT2 = "<<aT2<<", f[2] = "<<f[2]<<", l[2] = "<<l[2]<<endl;
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}
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Standard_Real MilTol2 = 1000*Tol*Tol;
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if (P1.SquareDistance(P) > MilTol2 || P2.SquareDistance(P) > MilTol2 || P1.Distance(P2) > 2.*Tol)
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{
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cout << "Inter2d : Solution rejected "<<endl;
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cout<<"P = "<<P.X()<<" "<<P.Y()<<" "<<P.Z()<<endl;
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cout<<"P1 = "<<P1.X()<<" "<<P1.Y()<<" "<<P1.Z()<<endl;
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cout<<"P2 = "<<P2.X()<<" "<<P2.Y()<<" "<<P2.Z()<<endl;
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cout<<"MaxDist = "<<dist1<<endl;
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}
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#endif
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//define the orientation of a new vertex
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TopAbs_Orientation OO1 = TopAbs_REVERSED;
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TopAbs_Orientation OO2 = TopAbs_REVERSED;
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if (WithOri)
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{
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BRepAdaptor_Curve2d PCE1( E1, F );
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BRepAdaptor_Curve2d PCE2( E2, F );
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gp_Pnt2d P2d1, P2d2;
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gp_Vec2d V1, V2, V1or, V2or;
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PCE1.D1( aT1, P2d1, V1 );
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PCE2.D1( aT2, P2d2, V2 );
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V1or = V1; V2or = V2;
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if (E1.Orientation() == TopAbs_REVERSED) V1or.Reverse();
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if (E2.Orientation() == TopAbs_REVERSED) V2or.Reverse();
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Standard_Real CrossProd = V2or ^ V1;
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#ifdef OCCT_DEBUG
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if (Abs(CrossProd) <= gp::Resolution())
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cout<<endl<<"CrossProd = "<<CrossProd<<endl;
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#endif
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if (CrossProd > 0.)
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OO1 = TopAbs_FORWARD;
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CrossProd = V1or ^ V2;
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if (CrossProd > 0.)
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OO2 = TopAbs_FORWARD;
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}
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LV1.Append( aNewVertex.Oriented(OO1) );
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LV2.Append( aNewVertex.Oriented(OO2) );
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}
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}
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//----------------------------------
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// Test at end.
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//---------------------------------
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Standard_Real U1,U2;
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Standard_Real TolConf = Tol;
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TopoDS_Vertex V1[2],V2[2];
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TopExp::Vertices(E1,V1[0],V1[1]);
|
|
TopExp::Vertices(E2,V2[0],V2[1]);
|
|
|
|
Standard_Integer j;
|
|
for (j = 0; j < 2; j++) {
|
|
if (V1[j].IsNull()) continue;
|
|
for (Standard_Integer k = 0; k < 2; k++) {
|
|
if (V2[k].IsNull()) continue;
|
|
if (V1[j].IsSame(V2[k])) {
|
|
if (AsDes->HasAscendant(V1[j])) {
|
|
continue;
|
|
}
|
|
}
|
|
//
|
|
gp_Pnt P1 = BRep_Tool::Pnt(V1[j]);
|
|
gp_Pnt P2 = BRep_Tool::Pnt(V2[k]);
|
|
Standard_Real Dist = P1.Distance(P2);
|
|
if (Dist < TolConf) {
|
|
Standard_Real aTol =
|
|
Max(BRep_Tool::Tolerance(V1[j]), BRep_Tool::Tolerance(V2[k]));
|
|
TopoDS_Vertex V = BRepLib_MakeVertex(P1);
|
|
U1 = (j == 0) ? f[1] : l[1];
|
|
U2 = (k == 0) ? f[2] : l[2];
|
|
//
|
|
TopoDS_Shape aLocalShape = V.Oriented(TopAbs_INTERNAL);
|
|
B.UpdateVertex(TopoDS::Vertex(aLocalShape),U1,E1,aTol);
|
|
B.UpdateVertex(TopoDS::Vertex(aLocalShape),U2,E2,aTol);
|
|
//
|
|
LV1.Prepend(V.Oriented(V1[j].Orientation()));
|
|
LV2.Prepend(V.Oriented(V2[k].Orientation()));
|
|
}
|
|
}
|
|
}
|
|
|
|
Standard_Boolean AffichPurge = Standard_False;
|
|
|
|
if ( !LV1.IsEmpty()) {
|
|
//----------------------------------
|
|
// Remove all vertices.
|
|
// There can be doubles
|
|
//----------------------------------
|
|
TopTools_ListIteratorOfListOfShape it1LV1,it1LV2,it2LV1;
|
|
gp_Pnt P1,P2;
|
|
Standard_Boolean Purge = Standard_True;
|
|
|
|
while (Purge) {
|
|
i = 1;
|
|
Purge = Standard_False;
|
|
for (it1LV1.Initialize(LV1),it1LV2.Initialize(LV2);
|
|
it1LV1.More(); it1LV1.Next(),it1LV2.Next()) {
|
|
j = 1;
|
|
it2LV1.Initialize(LV1);
|
|
while (j < i) {
|
|
P1 = BRep_Tool::Pnt(TopoDS::Vertex(it1LV1.Value()));
|
|
P2 = BRep_Tool::Pnt(TopoDS::Vertex(it2LV1.Value()));
|
|
// Modified by skv - Thu Jan 22 18:19:04 2004 OCC4455 Begin
|
|
// if (P1.IsEqual(P2,10*Tol)) {
|
|
Standard_Real aTol;
|
|
|
|
aTol = Max(BRep_Tool::Tolerance(TopoDS::Vertex(it1LV1.Value())),
|
|
BRep_Tool::Tolerance(TopoDS::Vertex(it2LV1.Value())));
|
|
if (P1.IsEqual(P2,aTol)) {
|
|
// Modified by skv - Thu Jan 22 18:19:05 2004 OCC4455 End
|
|
LV1.Remove(it1LV1);
|
|
LV2.Remove(it1LV2);
|
|
if (AffichPurge) cout <<"Doubles removed in EdgeInter."<<endl;
|
|
Purge = Standard_True;
|
|
break;
|
|
}
|
|
j++;
|
|
it2LV1.Next();
|
|
}
|
|
if (Purge) break;
|
|
i++;
|
|
}
|
|
}
|
|
//---------------------------------
|
|
// Vertex storage in DS.
|
|
//---------------------------------
|
|
Standard_Real TolStore = BRep_Tool::Tolerance(E1) + BRep_Tool::Tolerance(E2);
|
|
TolStore = Max(TolStore, 10.*Tol);
|
|
Store (E1,E2,LV1,LV2,TolStore,AsDes, aDMVV);
|
|
}
|
|
}
|
|
//=======================================================================
|
|
//function : EdgeInter
|
|
//purpose :
|
|
//=======================================================================
|
|
|
|
static void RefEdgeInter(const TopoDS_Face& F,
|
|
const BRepAdaptor_Surface& BAsurf,
|
|
const TopoDS_Edge& E1,
|
|
const TopoDS_Edge& E2,
|
|
const Handle(BRepAlgo_AsDes)& AsDes,
|
|
Standard_Real Tol,
|
|
Standard_Boolean WithOri,
|
|
gp_Pnt& Pref,
|
|
TopTools_IndexedDataMapOfShapeListOfShape& aDMVV,
|
|
Standard_Boolean& theCoincide)
|
|
{
|
|
#ifdef DRAW
|
|
if (Inter2dAffichInt2d) {
|
|
char name[256];
|
|
sprintf(name,"E2d_%d_%d",NbF2d,NbE2d++);
|
|
DBRep::Set(name,E1);
|
|
sprintf(name,"E2d_%d_%d",NbF2d,NbE2d++);
|
|
DBRep::Set(name,E2);
|
|
}
|
|
#endif
|
|
//
|
|
theCoincide = Standard_False;
|
|
//
|
|
if (E1.IsSame(E2))
|
|
return;
|
|
|
|
Standard_Real f[3],l[3];
|
|
Standard_Real TolDub = 1.e-7;
|
|
Standard_Integer i;
|
|
|
|
//BRep_Tool::Range(E1, f[1], l[1]);
|
|
//BRep_Tool::Range(E2, f[2], l[2]);
|
|
|
|
BRepAdaptor_Curve CE1(E1,F);
|
|
BRepAdaptor_Curve CE2(E2,F);
|
|
|
|
TopoDS_Edge EI[3]; EI[1] = E1; EI[2] = E2;
|
|
TopTools_ListOfShape LV1;
|
|
TopTools_ListOfShape LV2;
|
|
BRep_Builder B;
|
|
|
|
BRepLib::BuildCurve3d(E1);
|
|
BRepLib::BuildCurve3d(E2);
|
|
|
|
Standard_Real TolSum = BRep_Tool::Tolerance(E1) + BRep_Tool::Tolerance(E2);
|
|
TolSum = Max( TolSum, 1.e-5 );
|
|
|
|
TColgp_SequenceOfPnt ResPoints;
|
|
TColStd_SequenceOfReal ResParamsOnE1, ResParamsOnE2;
|
|
gp_Pnt DegPoint;
|
|
Standard_Boolean WithDegen = BRep_Tool::Degenerated(E1) || BRep_Tool::Degenerated(E2);
|
|
|
|
if (WithDegen)
|
|
{
|
|
Standard_Integer ideg = (BRep_Tool::Degenerated(E1))? 1 : 2;
|
|
TopoDS_Iterator iter( EI[ideg] );
|
|
if (iter.More())
|
|
{
|
|
const TopoDS_Vertex& vdeg = TopoDS::Vertex(iter.Value());
|
|
DegPoint = BRep_Tool::Pnt(vdeg);
|
|
}
|
|
else
|
|
{
|
|
BRepAdaptor_Curve CEdeg( EI[ideg], F );
|
|
DegPoint = CEdeg.Value( CEdeg.FirstParameter() );
|
|
}
|
|
}
|
|
//
|
|
Handle(Geom2d_Curve) pcurve1 = BRep_Tool::CurveOnSurface(E1, F, f[1], l[1]);
|
|
Handle(Geom2d_Curve) pcurve2 = BRep_Tool::CurveOnSurface(E2, F, f[2], l[2]);
|
|
Geom2dAdaptor_Curve GAC1(pcurve1, f[1], l[1]);
|
|
Geom2dAdaptor_Curve GAC2(pcurve2, f[2], l[2]);
|
|
Geom2dInt_GInter Inter2d( GAC1, GAC2, TolDub, TolDub );
|
|
//
|
|
if (!Inter2d.IsDone() || !Inter2d.NbPoints()) {
|
|
theCoincide = (Inter2d.NbSegments() &&
|
|
(GAC1.GetType() == GeomAbs_Line) &&
|
|
(GAC2.GetType() == GeomAbs_Line));
|
|
return;
|
|
}
|
|
//
|
|
for (i = 1; i <= Inter2d.NbPoints(); i++)
|
|
{
|
|
gp_Pnt P3d;
|
|
if (WithDegen)
|
|
P3d = DegPoint;
|
|
else
|
|
{
|
|
gp_Pnt2d P2d = Inter2d.Point(i).Value();
|
|
P3d = BAsurf.Value( P2d.X(), P2d.Y() );
|
|
}
|
|
ResPoints.Append( P3d );
|
|
ResParamsOnE1.Append( Inter2d.Point(i).ParamOnFirst() );
|
|
ResParamsOnE2.Append( Inter2d.Point(i).ParamOnSecond() );
|
|
}
|
|
|
|
for (i = 1; i <= ResPoints.Length(); i++)
|
|
{
|
|
Standard_Real aT1 = ResParamsOnE1(i); //ponc1.Parameter();
|
|
Standard_Real aT2 = ResParamsOnE2(i); //ponc2.Parameter();
|
|
if (Precision::IsInfinite(aT1) || Precision::IsInfinite(aT2))
|
|
{
|
|
#ifdef OCCT_DEBUG
|
|
cout << "Inter2d : Solution rejected due to infinite parameter"<<endl;
|
|
#endif
|
|
continue;
|
|
}
|
|
|
|
gp_Pnt P = ResPoints(i); //ponc1.Value();
|
|
TopoDS_Vertex aNewVertex = BRepLib_MakeVertex(P);
|
|
aNewVertex.Orientation(TopAbs_INTERNAL);
|
|
B.UpdateVertex( aNewVertex, aT1, E1, Tol );
|
|
B.UpdateVertex( aNewVertex, aT2, E2, Tol );
|
|
gp_Pnt P1 = CE1.Value(aT1);
|
|
gp_Pnt P2 = CE2.Value(aT2);
|
|
Standard_Real dist1, dist2, dist3;
|
|
dist1 = P1.Distance(P);
|
|
dist2 = P2.Distance(P);
|
|
dist3 = P1.Distance(P2);
|
|
dist1 = Max( dist1, dist2 );
|
|
dist1 = Max( dist1, dist3 );
|
|
B.UpdateVertex( aNewVertex, dist1 );
|
|
|
|
#ifdef OCCT_DEBUG
|
|
if (aT1 < f[1]-Tol || aT1 > l[1]+Tol)
|
|
{
|
|
cout << "out of limit"<<endl;
|
|
cout<<"aT1 = "<<aT1<<", f[1] = "<<f[1]<<", l[1] = "<<l[1]<<endl;
|
|
}
|
|
if (aT2 < f[2]-Tol || aT2 > l[2]+Tol)
|
|
{
|
|
cout << "out of limit"<<endl;
|
|
cout<<"aT2 = "<<aT2<<", f[2] = "<<f[2]<<", l[2] = "<<l[2]<<endl;
|
|
}
|
|
Standard_Real MilTol2 = 1000*Tol*Tol;
|
|
if (P1.SquareDistance(P) > MilTol2 || P2.SquareDistance(P) > MilTol2 || P1.Distance(P2) > 2.*Tol)
|
|
{
|
|
cout << "Inter2d : Solution rejected"<<endl;
|
|
cout<<"P = "<<P.X()<<" "<<P.Y()<<" "<<P.Z()<<endl;
|
|
cout<<"P1 = "<<P1.X()<<" "<<P1.Y()<<" "<<P1.Z()<<endl;
|
|
cout<<"P2 = "<<P2.X()<<" "<<P2.Y()<<" "<<P2.Z()<<endl;
|
|
cout<<"MaxDist = "<<dist1<<endl;
|
|
}
|
|
#endif
|
|
//define the orientation of a new vertex
|
|
TopAbs_Orientation OO1 = TopAbs_REVERSED;
|
|
TopAbs_Orientation OO2 = TopAbs_REVERSED;
|
|
if (WithOri)
|
|
{
|
|
BRepAdaptor_Curve2d PCE1( E1, F );
|
|
BRepAdaptor_Curve2d PCE2( E2, F );
|
|
gp_Pnt2d P2d1, P2d2;
|
|
gp_Vec2d V1, V2, V1or, V2or;
|
|
PCE1.D1( aT1, P2d1, V1 );
|
|
PCE2.D1( aT2, P2d2, V2 );
|
|
V1or = V1; V2or = V2;
|
|
if (E1.Orientation() == TopAbs_REVERSED) V1or.Reverse();
|
|
if (E2.Orientation() == TopAbs_REVERSED) V2or.Reverse();
|
|
Standard_Real CrossProd = V2or ^ V1;
|
|
#ifdef OCCT_DEBUG
|
|
if (Abs(CrossProd) <= gp::Resolution())
|
|
cout<<endl<<"CrossProd = "<<CrossProd<<endl;
|
|
#endif
|
|
if (CrossProd > 0.)
|
|
OO1 = TopAbs_FORWARD;
|
|
CrossProd = V1or ^ V2;
|
|
if (CrossProd > 0.)
|
|
OO2 = TopAbs_FORWARD;
|
|
}
|
|
LV1.Append( aNewVertex.Oriented(OO1) );
|
|
LV2.Append( aNewVertex.Oriented(OO2) );
|
|
}
|
|
|
|
//----------------------------------
|
|
// Test at end.
|
|
//---------------------------------
|
|
Standard_Real U1,U2;
|
|
Standard_Real TolConf = Tol;
|
|
TopoDS_Vertex V1[2],V2[2];
|
|
TopExp::Vertices(E1,V1[0],V1[1]);
|
|
TopExp::Vertices(E2,V2[0],V2[1]);
|
|
|
|
Standard_Integer j;
|
|
for (j = 0; j < 2; j++) {
|
|
if (V1[j].IsNull()) continue;
|
|
for (Standard_Integer k = 0; k < 2; k++) {
|
|
if (V2[k].IsNull()) continue;
|
|
if (V1[j].IsSame(V2[k])) {
|
|
if (AsDes->HasAscendant(V1[j])) {
|
|
continue;
|
|
}
|
|
}
|
|
//
|
|
gp_Pnt P1 = BRep_Tool::Pnt(V1[j]);
|
|
gp_Pnt P2 = BRep_Tool::Pnt(V2[k]);
|
|
Standard_Real Dist = P1.Distance(P2);
|
|
if (Dist < TolConf) {
|
|
TopoDS_Vertex V = BRepLib_MakeVertex(P1);
|
|
U1 = (j == 0) ? f[1] : l[1];
|
|
U2 = (k == 0) ? f[2] : l[2];
|
|
TopoDS_Shape aLocalShape = V.Oriented(TopAbs_INTERNAL);
|
|
B.UpdateVertex(TopoDS::Vertex(aLocalShape),U1,E1,Tol);
|
|
B.UpdateVertex(TopoDS::Vertex(aLocalShape),U2,E2,Tol);
|
|
LV1.Prepend(V.Oriented(V1[j].Orientation()));
|
|
LV2.Prepend(V.Oriented(V2[k].Orientation()));
|
|
}
|
|
}
|
|
}
|
|
|
|
Standard_Boolean AffichPurge = Standard_False;
|
|
|
|
if ( !LV1.IsEmpty()) {
|
|
//----------------------------------
|
|
// Remove all vertices.
|
|
// there can be doubles
|
|
//----------------------------------
|
|
TopTools_ListIteratorOfListOfShape it1LV1,it1LV2,it2LV1;
|
|
gp_Pnt P1,P2;
|
|
Standard_Boolean Purge = Standard_True;
|
|
|
|
while (Purge) {
|
|
i = 1;
|
|
Purge = Standard_False;
|
|
for (it1LV1.Initialize(LV1),it1LV2.Initialize(LV2);
|
|
it1LV1.More(); it1LV1.Next(),it1LV2.Next()) {
|
|
j = 1;
|
|
it2LV1.Initialize(LV1);
|
|
while (j < i) {
|
|
P1 = BRep_Tool::Pnt(TopoDS::Vertex(it1LV1.Value()));
|
|
P2 = BRep_Tool::Pnt(TopoDS::Vertex(it2LV1.Value()));
|
|
if (P1.IsEqual(P2,10*Tol)) {
|
|
LV1.Remove(it1LV1);
|
|
LV2.Remove(it1LV2);
|
|
if (AffichPurge) cout <<"Doubles removed in EdgeInter."<<endl;
|
|
Purge = Standard_True;
|
|
break;
|
|
}
|
|
j++;
|
|
it2LV1.Next();
|
|
}
|
|
if (Purge) break;
|
|
i++;
|
|
}
|
|
}
|
|
//---------------------------------
|
|
// Vertex storage in SD.
|
|
//---------------------------------
|
|
////-----------------------------------------------------
|
|
if(LV1.Extent() > 1) {
|
|
//cout << "IFV - RefEdgeInter: remove vertex" << endl;
|
|
Standard_Real dmin = RealLast();
|
|
TopoDS_Vertex Vmin;
|
|
for (it1LV1.Initialize(LV1); it1LV1.More(); it1LV1.Next()) {
|
|
gp_Pnt P = BRep_Tool::Pnt(TopoDS::Vertex(it1LV1.Value()));
|
|
Standard_Real d = P.SquareDistance(Pref);
|
|
if(d < dmin) {
|
|
dmin = d;
|
|
Vmin = TopoDS::Vertex(it1LV1.Value());
|
|
}
|
|
}
|
|
for (it1LV1.Initialize(LV1),it1LV2.Initialize(LV2);
|
|
it1LV1.More(); it1LV1.Next(),it1LV2.Next()) {
|
|
if(!Vmin.IsSame(it1LV1.Value())) {
|
|
LV1.Remove(it1LV1);
|
|
LV2.Remove(it1LV2);
|
|
if(!it1LV1.More()) break;
|
|
}
|
|
}
|
|
}
|
|
|
|
////-----------------------------------------------------
|
|
Standard_Real TolStore = BRep_Tool::Tolerance(E1) + BRep_Tool::Tolerance(E2);
|
|
TolStore = Max(TolStore, 10.*Tol);
|
|
Store (E1,E2,LV1,LV2,TolStore,AsDes, aDMVV);
|
|
}
|
|
}
|
|
|
|
|
|
//======================================================================
|
|
//function : EvaluateMaxSegment
|
|
//purpose : return MaxSegment to pass in approximation
|
|
//======================================================================
|
|
|
|
static Standard_Integer evaluateMaxSegment(const Adaptor3d_CurveOnSurface& aCurveOnSurface)
|
|
{
|
|
Handle(Adaptor3d_HSurface) aSurf = aCurveOnSurface.GetSurface();
|
|
Handle(Adaptor2d_HCurve2d) aCurv2d = aCurveOnSurface.GetCurve();
|
|
|
|
Standard_Real aNbSKnots = 0, aNbC2dKnots = 0;
|
|
|
|
if (aSurf->GetType() == GeomAbs_BSplineSurface) {
|
|
Handle(Geom_BSplineSurface) aBSpline = aSurf->BSpline();
|
|
aNbSKnots = Max(aBSpline->NbUKnots(), aBSpline->NbVKnots());
|
|
}
|
|
if (aCurv2d->GetType() == GeomAbs_BSplineCurve) {
|
|
aNbC2dKnots = aCurv2d->NbKnots();
|
|
}
|
|
Standard_Integer aReturn = (Standard_Integer) ( 30 + Max(aNbSKnots, aNbC2dKnots) ) ;
|
|
return aReturn;
|
|
}
|
|
|
|
|
|
//=======================================================================
|
|
//function : ExtendPCurve
|
|
//purpose :
|
|
//=======================================================================
|
|
|
|
static Standard_Boolean ExtendPCurve(const Handle(Geom2d_Curve)& aPCurve,
|
|
const Standard_Real anEf,
|
|
const Standard_Real anEl,
|
|
const Standard_Real a2Offset,
|
|
Handle(Geom2d_Curve)& NewPCurve)
|
|
{
|
|
NewPCurve = aPCurve;
|
|
if (NewPCurve->IsInstance(STANDARD_TYPE(Geom2d_TrimmedCurve)))
|
|
NewPCurve = Handle(Geom2d_TrimmedCurve)::DownCast (NewPCurve)->BasisCurve();
|
|
|
|
Standard_Real FirstPar = NewPCurve->FirstParameter();
|
|
Standard_Real LastPar = NewPCurve->LastParameter();
|
|
|
|
if (NewPCurve->IsKind(STANDARD_TYPE(Geom2d_BoundedCurve)) &&
|
|
(FirstPar > anEf - a2Offset || LastPar < anEl + a2Offset))
|
|
{
|
|
if (NewPCurve->IsInstance(STANDARD_TYPE(Geom2d_BezierCurve)))
|
|
{
|
|
Handle(Geom2d_BezierCurve) aBezier = Handle(Geom2d_BezierCurve)::DownCast (NewPCurve);
|
|
if (aBezier->NbPoles() == 2)
|
|
{
|
|
TColgp_Array1OfPnt2d thePoles(1,2);
|
|
aBezier->Poles(thePoles);
|
|
gp_Vec2d aVec(thePoles(1), thePoles(2));
|
|
NewPCurve = new Geom2d_Line(thePoles(1), aVec);
|
|
return Standard_True;
|
|
}
|
|
}
|
|
else if (NewPCurve->IsInstance(STANDARD_TYPE(Geom2d_BSplineCurve)))
|
|
{
|
|
Handle(Geom2d_BSplineCurve) aBSpline = Handle(Geom2d_BSplineCurve)::DownCast (NewPCurve);
|
|
if (aBSpline->NbKnots() == 2 && aBSpline->NbPoles() == 2)
|
|
{
|
|
TColgp_Array1OfPnt2d thePoles(1,2);
|
|
aBSpline->Poles(thePoles);
|
|
gp_Vec2d aVec(thePoles(1), thePoles(2));
|
|
NewPCurve = new Geom2d_Line(thePoles(1), aVec);
|
|
return Standard_True;
|
|
}
|
|
}
|
|
}
|
|
|
|
FirstPar = aPCurve->FirstParameter();
|
|
LastPar = aPCurve->LastParameter();
|
|
Handle(Geom2d_TrimmedCurve) aTrCurve =
|
|
new Geom2d_TrimmedCurve(aPCurve, FirstPar, LastPar);
|
|
|
|
// The curve is not prolonged on begin or end.
|
|
// Trying to prolong it adding a segment to its bound.
|
|
gp_Pnt2d aPBnd;
|
|
gp_Vec2d aVBnd;
|
|
gp_Pnt2d aPBeg;
|
|
gp_Dir2d aDBnd;
|
|
Handle(Geom2d_Line) aLin;
|
|
Handle(Geom2d_TrimmedCurve) aSegment;
|
|
Geom2dConvert_CompCurveToBSplineCurve aCompCurve(aTrCurve, Convert_RationalC1);
|
|
Standard_Real aTol = Precision::Confusion();
|
|
Standard_Real aDelta = Max(a2Offset, 1.);
|
|
|
|
if (FirstPar > anEf - a2Offset) {
|
|
aPCurve->D1(FirstPar, aPBnd, aVBnd);
|
|
aDBnd.SetXY(aVBnd.XY());
|
|
aPBeg = aPBnd.Translated(gp_Vec2d(-aDelta*aDBnd.XY()));
|
|
aLin = new Geom2d_Line(aPBeg, aDBnd);
|
|
aSegment = new Geom2d_TrimmedCurve(aLin, 0, aDelta);
|
|
|
|
if (!aCompCurve.Add(aSegment, aTol))
|
|
return Standard_False;
|
|
}
|
|
|
|
if (LastPar < anEl + a2Offset) {
|
|
aPCurve->D1(LastPar, aPBeg, aVBnd);
|
|
aDBnd.SetXY(aVBnd.XY());
|
|
aLin = new Geom2d_Line(aPBeg, aDBnd);
|
|
aSegment = new Geom2d_TrimmedCurve(aLin, 0, aDelta);
|
|
|
|
if (!aCompCurve.Add(aSegment, aTol))
|
|
return Standard_False;
|
|
}
|
|
|
|
NewPCurve = aCompCurve.BSplineCurve();
|
|
return Standard_True;
|
|
}
|
|
|
|
//=======================================================================
|
|
//function : ExtentEdge
|
|
//purpose :
|
|
//=======================================================================
|
|
|
|
// Modified by skv - Fri Dec 26 17:00:55 2003 OCC4455 Begin
|
|
//static void ExtentEdge(const TopoDS_Edge& E,TopoDS_Edge& NE)
|
|
void BRepOffset_Inter2d::ExtentEdge(const TopoDS_Edge& E,TopoDS_Edge& NE, const Standard_Real theOffset)
|
|
{
|
|
//BRepLib::BuildCurve3d(E);
|
|
|
|
TopoDS_Shape aLocalShape = E.EmptyCopied();
|
|
Standard_Real anEf;
|
|
Standard_Real anEl;
|
|
Standard_Real a2Offset = 2.*Abs(theOffset);
|
|
BRep_Builder BB;
|
|
Standard_Integer i, j;
|
|
|
|
BRep_Tool::Range(E, anEf, anEl);
|
|
NE = TopoDS::Edge(aLocalShape);
|
|
// NE = TopoDS::Edge(E.EmptyCopied());
|
|
// Enough for analytic edges, for general case reconstruct the
|
|
// geometry of the edge recalculating the intersection of surfaces.
|
|
|
|
//BRepLib::BuildCurve3d(E);
|
|
|
|
Standard_Integer NbPCurves = 0;
|
|
Standard_Real FirstParOnPC = RealFirst(), LastParOnPC = RealLast();
|
|
Handle(Geom2d_Curve) MinPC;
|
|
Handle(Geom_Surface) MinSurf;
|
|
TopLoc_Location MinLoc;
|
|
|
|
BRep_ListIteratorOfListOfCurveRepresentation itr( (Handle(BRep_TEdge)::DownCast(NE.TShape()))->ChangeCurves() );
|
|
for (; itr.More(); itr.Next())
|
|
{
|
|
Handle( BRep_CurveRepresentation ) CurveRep = itr.Value();
|
|
Standard_Real FirstPar, LastPar;
|
|
if (CurveRep->IsCurveOnSurface())
|
|
{
|
|
NbPCurves++;
|
|
Handle(Geom2d_Curve) theCurve = CurveRep->PCurve();
|
|
FirstPar = theCurve->FirstParameter();
|
|
LastPar = theCurve->LastParameter();
|
|
|
|
if (theCurve->IsKind(STANDARD_TYPE(Geom2d_BoundedCurve)) &&
|
|
(FirstPar > anEf - a2Offset || LastPar < anEl + a2Offset))
|
|
{
|
|
Handle(Geom2d_Curve) NewPCurve;
|
|
if (ExtendPCurve(theCurve, anEf, anEl, a2Offset, NewPCurve))
|
|
{
|
|
CurveRep->PCurve(NewPCurve);
|
|
FirstPar = NewPCurve->FirstParameter();
|
|
LastPar = NewPCurve->LastParameter();
|
|
if (CurveRep->IsCurveOnClosedSurface())
|
|
{
|
|
Handle(Geom2d_Curve) PCurve2 = CurveRep->PCurve2();
|
|
if (ExtendPCurve(PCurve2, anEf, anEl, a2Offset, NewPCurve))
|
|
CurveRep->PCurve2(NewPCurve);
|
|
}
|
|
}
|
|
}
|
|
else if (theCurve->IsPeriodic())
|
|
{
|
|
Standard_Real delta = (theCurve->Period() - (anEl - anEf))*0.5;
|
|
delta *= 0.95;
|
|
FirstPar = anEf - delta;
|
|
LastPar = anEl + delta;
|
|
}
|
|
else if (theCurve->IsClosed())
|
|
LastPar -= 0.05*(LastPar - FirstPar);
|
|
|
|
//check FirstPar and LastPar: the pcurve should be in its surface
|
|
theCurve = CurveRep->PCurve();
|
|
Handle(Geom_Surface) theSurf = CurveRep->Surface();
|
|
Standard_Real Umin, Umax, Vmin, Vmax;
|
|
theSurf->Bounds(Umin, Umax, Vmin, Vmax);
|
|
TColGeom2d_SequenceOfCurve BoundLines;
|
|
if (!Precision::IsInfinite(Vmin))
|
|
{
|
|
Handle(Geom2d_Line) aLine = new Geom2d_Line(gp_Pnt2d( 0., Vmin ),
|
|
gp_Dir2d( 1., 0. ));
|
|
BoundLines.Append(aLine);
|
|
}
|
|
if (!Precision::IsInfinite(Umin))
|
|
{
|
|
Handle(Geom2d_Line) aLine = new Geom2d_Line(gp_Pnt2d( Umin, 0. ),
|
|
gp_Dir2d( 0., 1. ));
|
|
BoundLines.Append(aLine);
|
|
}
|
|
if (!Precision::IsInfinite(Vmax))
|
|
{
|
|
Handle(Geom2d_Line) aLine = new Geom2d_Line(gp_Pnt2d( 0., Vmax ),
|
|
gp_Dir2d( 1., 0. ));
|
|
BoundLines.Append(aLine);
|
|
}
|
|
if (!Precision::IsInfinite(Umax))
|
|
{
|
|
Handle(Geom2d_Line) aLine = new Geom2d_Line(gp_Pnt2d( Umax, 0. ),
|
|
gp_Dir2d( 0., 1. ));
|
|
BoundLines.Append(aLine);
|
|
}
|
|
|
|
TColStd_SequenceOfReal params;
|
|
Geom2dInt_GInter IntCC;
|
|
Geom2dAdaptor_Curve GAcurve(theCurve);
|
|
for (i = 1; i <= BoundLines.Length(); i++)
|
|
{
|
|
Geom2dAdaptor_Curve GAline( BoundLines(i) );
|
|
IntCC.Perform( GAcurve, GAline, Precision::PConfusion(), Precision::PConfusion());
|
|
if (IntCC.IsDone())
|
|
{
|
|
for (j = 1; j <= IntCC.NbPoints(); j++)
|
|
{
|
|
const IntRes2d_IntersectionPoint& ip = IntCC.Point(j);
|
|
gp_Pnt2d aPoint = ip.Value();
|
|
if (aPoint.X() >= Umin && aPoint.X() <= Umax &&
|
|
aPoint.Y() >= Vmin && aPoint.Y() <= Vmax)
|
|
params.Append( ip.ParamOnFirst() );
|
|
}
|
|
for (j = 1; j <= IntCC.NbSegments(); j++)
|
|
{
|
|
const IntRes2d_IntersectionSegment& is = IntCC.Segment(j);
|
|
if (is.HasFirstPoint())
|
|
{
|
|
const IntRes2d_IntersectionPoint& ip = is.FirstPoint();
|
|
gp_Pnt2d aPoint = ip.Value();
|
|
if (aPoint.X() >= Umin && aPoint.X() <= Umax &&
|
|
aPoint.Y() >= Vmin && aPoint.Y() <= Vmax)
|
|
params.Append( ip.ParamOnFirst() );
|
|
}
|
|
if (is.HasLastPoint())
|
|
{
|
|
const IntRes2d_IntersectionPoint& ip = is.LastPoint();
|
|
gp_Pnt2d aPoint = ip.Value();
|
|
if (aPoint.X() >= Umin && aPoint.X() <= Umax &&
|
|
aPoint.Y() >= Vmin && aPoint.Y() <= Vmax)
|
|
params.Append( ip.ParamOnFirst() );
|
|
}
|
|
}
|
|
}
|
|
}
|
|
if (!params.IsEmpty())
|
|
{
|
|
if (params.Length() == 1)
|
|
{
|
|
gp_Pnt2d PntFirst = theCurve->Value(FirstPar);
|
|
if (PntFirst.X() >= Umin && PntFirst.X() <= Umax &&
|
|
PntFirst.Y() >= Vmin && PntFirst.Y() <= Vmax)
|
|
{
|
|
if (LastPar > params(1))
|
|
LastPar = params(1);
|
|
}
|
|
else if (FirstPar < params(1))
|
|
FirstPar = params(1);
|
|
}
|
|
else
|
|
{
|
|
Standard_Real fpar = RealLast(), lpar = RealFirst();
|
|
for (i = 1; i <= params.Length(); i++)
|
|
{
|
|
if (params(i) < fpar)
|
|
fpar = params(i);
|
|
if (params(i) > lpar)
|
|
lpar = params(i);
|
|
}
|
|
if (FirstPar < fpar)
|
|
FirstPar = fpar;
|
|
if (LastPar > lpar)
|
|
LastPar = lpar;
|
|
}
|
|
}
|
|
//// end of check ////
|
|
(Handle(BRep_GCurve)::DownCast(CurveRep))->SetRange( FirstPar, LastPar );
|
|
//gp_Pnt2d Pfirst = theCurve->Value(FirstPar);
|
|
//gp_Pnt2d Plast = theCurve->Value(LastPar);
|
|
//(Handle(BRep_CurveOnSurface)::DownCast(CurveRep))->SetUVPoints( Pfirst, Plast );
|
|
|
|
//update FirstParOnPC and LastParOnPC
|
|
if (FirstPar > FirstParOnPC)
|
|
{
|
|
FirstParOnPC = FirstPar;
|
|
MinPC = theCurve;
|
|
MinSurf = theSurf;
|
|
MinLoc = CurveRep->Location();
|
|
}
|
|
if (LastPar < LastParOnPC)
|
|
{
|
|
LastParOnPC = LastPar;
|
|
MinPC = theCurve;
|
|
MinSurf = theSurf;
|
|
MinLoc = CurveRep->Location();
|
|
}
|
|
}
|
|
}
|
|
|
|
Standard_Real f, l;
|
|
Handle(Geom_Curve) C3d = BRep_Tool::Curve( NE, f, l );
|
|
if (NbPCurves)
|
|
{
|
|
MinLoc = E.Location() * MinLoc;
|
|
if (!C3d.IsNull())
|
|
{
|
|
if (MinPC->IsClosed())
|
|
{
|
|
f = FirstParOnPC;
|
|
l = LastParOnPC;
|
|
}
|
|
else if (C3d->IsPeriodic())
|
|
{
|
|
Standard_Real delta = (C3d->Period() - (l - f))*0.5;
|
|
delta *= 0.95;
|
|
f -= delta;
|
|
l += delta;
|
|
}
|
|
else if (C3d->IsClosed())
|
|
l -= 0.05*(l - f);
|
|
else
|
|
{
|
|
f = FirstParOnPC;
|
|
l = LastParOnPC;
|
|
GeomAPI_ProjectPointOnCurve Projector;
|
|
if (!Precision::IsInfinite(FirstParOnPC))
|
|
{
|
|
gp_Pnt2d P2d1 = MinPC->Value(FirstParOnPC);
|
|
gp_Pnt P1 = MinSurf->Value( P2d1.X(), P2d1.Y() );
|
|
P1.Transform(MinLoc.Transformation());
|
|
Projector.Init( P1, C3d );
|
|
if (Projector.NbPoints() > 0)
|
|
f = Projector.LowerDistanceParameter();
|
|
#ifdef OCCT_DEBUG
|
|
else
|
|
cout<<"ProjectPointOnCurve not done"<<endl;
|
|
#endif
|
|
}
|
|
if (!Precision::IsInfinite(LastParOnPC))
|
|
{
|
|
gp_Pnt2d P2d2 = MinPC->Value(LastParOnPC);
|
|
gp_Pnt P2 = MinSurf->Value( P2d2.X(), P2d2.Y() );
|
|
P2.Transform(MinLoc.Transformation());
|
|
Projector.Init( P2, C3d );
|
|
if (Projector.NbPoints() > 0)
|
|
l = Projector.LowerDistanceParameter();
|
|
#ifdef OCCT_DEBUG
|
|
else
|
|
cout<<"ProjectPointOnCurve not done"<<endl;
|
|
#endif
|
|
}
|
|
}
|
|
BB.Range( NE, f, l );
|
|
if (!Precision::IsInfinite(f) && !Precision::IsInfinite(l))
|
|
BRepLib::SameParameter( NE, Precision::Confusion(), Standard_True );
|
|
}
|
|
else if (!BRep_Tool::Degenerated(E)) //no 3d curve
|
|
{
|
|
MinSurf = Handle(Geom_Surface)::DownCast
|
|
(MinSurf->Transformed(MinLoc.Transformation()));
|
|
Standard_Real max_deviation = 0.;
|
|
if (Precision::IsInfinite(FirstParOnPC) || Precision::IsInfinite(LastParOnPC))
|
|
{
|
|
if (MinPC->IsInstance(STANDARD_TYPE(Geom2d_Line)))
|
|
{
|
|
Standard_Boolean IsLine = Standard_False;
|
|
if (MinSurf->IsInstance(STANDARD_TYPE(Geom_Plane)))
|
|
IsLine = Standard_True;
|
|
else if (MinSurf->IsInstance(STANDARD_TYPE(Geom_CylindricalSurface)) ||
|
|
MinSurf->IsInstance(STANDARD_TYPE(Geom_ConicalSurface)))
|
|
{
|
|
Handle(Geom2d_Line) theLine = Handle(Geom2d_Line)::DownCast (MinPC);
|
|
gp_Dir2d LineDir = theLine->Direction();
|
|
if (LineDir.IsParallel( gp::DY2d(), Precision::Angular() ))
|
|
IsLine = Standard_True;
|
|
}
|
|
if (IsLine)
|
|
{
|
|
gp_Pnt2d P2d1 = MinPC->Value(0.), P2d2 = MinPC->Value(1.);
|
|
gp_Pnt P1 = MinSurf->Value(P2d1.X(), P2d1.Y());
|
|
gp_Pnt P2 = MinSurf->Value(P2d2.X(), P2d2.Y());
|
|
gp_Vec aVec(P1, P2);
|
|
C3d = new Geom_Line( P1, aVec );
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
Geom2dAdaptor_Curve AC2d( MinPC, FirstParOnPC, LastParOnPC );
|
|
GeomAdaptor_Surface GAsurf( MinSurf );
|
|
Handle(Geom2dAdaptor_HCurve) HC2d = new Geom2dAdaptor_HCurve( AC2d );
|
|
Handle(GeomAdaptor_HSurface) HSurf = new GeomAdaptor_HSurface( GAsurf );
|
|
Adaptor3d_CurveOnSurface ConS( HC2d, HSurf );
|
|
Standard_Real /*max_deviation,*/ average_deviation;
|
|
GeomAbs_Shape Continuity = GeomAbs_C1;
|
|
Standard_Integer MaxDegree = 14;
|
|
Standard_Integer MaxSegment = evaluateMaxSegment(ConS);
|
|
GeomLib::BuildCurve3d(Precision::Confusion(),
|
|
ConS, FirstParOnPC, LastParOnPC,
|
|
C3d, max_deviation, average_deviation,
|
|
Continuity, MaxDegree, MaxSegment);
|
|
}
|
|
BB.UpdateEdge( NE, C3d, max_deviation );
|
|
//BB.Range( NE, FirstParOnPC, LastParOnPC );
|
|
Standard_Boolean ProjectionSuccess = Standard_True;
|
|
if (NbPCurves > 1)
|
|
//BRepLib::SameParameter( NE, Precision::Confusion(), Standard_True );
|
|
for (itr.Initialize((Handle(BRep_TEdge)::DownCast(NE.TShape()))->ChangeCurves());
|
|
itr.More();
|
|
itr.Next())
|
|
{
|
|
Handle( BRep_CurveRepresentation ) CurveRep = itr.Value();
|
|
Standard_Real FirstPar, LastPar;
|
|
if (CurveRep->IsCurveOnSurface())
|
|
{
|
|
Handle(Geom2d_Curve) theCurve = CurveRep->PCurve();
|
|
Handle(Geom_Surface) theSurf = CurveRep->Surface();
|
|
TopLoc_Location theLoc = CurveRep->Location();
|
|
if (theCurve == MinPC && theSurf == MinSurf && theLoc == MinLoc)
|
|
continue;
|
|
FirstPar = (Handle(BRep_GCurve)::DownCast(CurveRep))->First();
|
|
LastPar = (Handle(BRep_GCurve)::DownCast(CurveRep))->Last();
|
|
if (Abs(FirstPar - FirstParOnPC) > Precision::PConfusion() ||
|
|
Abs(LastPar - LastParOnPC) > Precision::PConfusion())
|
|
{
|
|
theLoc = E.Location() * theLoc;
|
|
theSurf = Handle(Geom_Surface)::DownCast
|
|
(theSurf->Transformed(theLoc.Transformation()));
|
|
|
|
if (theCurve->IsInstance(STANDARD_TYPE(Geom2d_Line)) &&
|
|
theSurf->IsKind(STANDARD_TYPE(Geom_BoundedSurface)))
|
|
{
|
|
gp_Dir2d theDir = Handle(Geom2d_Line)::DownCast (theCurve)->Direction();
|
|
if (theDir.IsParallel(gp::DX2d(), Precision::Angular()) ||
|
|
theDir.IsParallel(gp::DY2d(), Precision::Angular()))
|
|
{
|
|
Standard_Real U1, U2, V1, V2;
|
|
theSurf->Bounds(U1, U2, V1, V2);
|
|
gp_Pnt2d Origin = Handle(Geom2d_Line)::DownCast (theCurve)->Location();
|
|
if (Abs(Origin.X()-U1) <= Precision::Confusion() ||
|
|
Abs(Origin.X()-U2) <= Precision::Confusion() ||
|
|
Abs(Origin.Y()-V1) <= Precision::Confusion() ||
|
|
Abs(Origin.Y()-V2) <= Precision::Confusion())
|
|
{
|
|
BRepLib::SameParameter( NE, Precision::Confusion(), Standard_True );
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
Handle(Geom2d_Curve) ProjPCurve =
|
|
GeomProjLib::Curve2d( C3d, FirstParOnPC, LastParOnPC, theSurf );
|
|
if (ProjPCurve.IsNull())
|
|
ProjectionSuccess = Standard_False;
|
|
else
|
|
CurveRep->PCurve( ProjPCurve );
|
|
}
|
|
}
|
|
}
|
|
if (ProjectionSuccess)
|
|
BB.Range( NE, FirstParOnPC, LastParOnPC );
|
|
else
|
|
{
|
|
BB.Range( NE, FirstParOnPC, LastParOnPC, Standard_True );
|
|
BRepLib::SameParameter( NE, Precision::Confusion(), Standard_True );
|
|
}
|
|
}
|
|
}
|
|
else //no pcurves
|
|
{
|
|
Standard_Real FirstPar = C3d->FirstParameter();
|
|
Standard_Real LastPar = C3d->LastParameter();
|
|
|
|
if (C3d->IsKind(STANDARD_TYPE(Geom_BoundedCurve)) &&
|
|
(FirstPar > anEf - a2Offset || LastPar < anEl + a2Offset))
|
|
{
|
|
Handle(Geom_TrimmedCurve) aTrCurve =
|
|
new Geom_TrimmedCurve(C3d, FirstPar, LastPar);
|
|
|
|
// The curve is not prolonged on begin or end.
|
|
// Trying to prolong it adding a segment to its bound.
|
|
gp_Pnt aPBnd;
|
|
gp_Vec aVBnd;
|
|
gp_Pnt aPBeg;
|
|
gp_Dir aDBnd;
|
|
Handle(Geom_Line) aLin;
|
|
Handle(Geom_TrimmedCurve) aSegment;
|
|
GeomConvert_CompCurveToBSplineCurve aCompCurve(aTrCurve, Convert_RationalC1);
|
|
Standard_Real aTol = Precision::Confusion();
|
|
Standard_Real aDelta = Max(a2Offset, 1.);
|
|
|
|
if (FirstPar > anEf - a2Offset) {
|
|
C3d->D1(FirstPar, aPBnd, aVBnd);
|
|
aDBnd.SetXYZ(aVBnd.XYZ());
|
|
aPBeg = aPBnd.Translated(gp_Vec(-aDelta*aDBnd.XYZ()));
|
|
aLin = new Geom_Line(aPBeg, aDBnd);
|
|
aSegment = new Geom_TrimmedCurve(aLin, 0, aDelta);
|
|
|
|
if (!aCompCurve.Add(aSegment, aTol))
|
|
return;
|
|
}
|
|
|
|
if (LastPar < anEl + a2Offset) {
|
|
C3d->D1(LastPar, aPBeg, aVBnd);
|
|
aDBnd.SetXYZ(aVBnd.XYZ());
|
|
aLin = new Geom_Line(aPBeg, aDBnd);
|
|
aSegment = new Geom_TrimmedCurve(aLin, 0, aDelta);
|
|
|
|
if (!aCompCurve.Add(aSegment, aTol))
|
|
return;
|
|
}
|
|
|
|
C3d = aCompCurve.BSplineCurve();
|
|
FirstPar = C3d->FirstParameter();
|
|
LastPar = C3d->LastParameter();
|
|
BB.UpdateEdge(NE, C3d, Precision::Confusion());
|
|
}
|
|
else if (C3d->IsPeriodic())
|
|
{
|
|
Standard_Real delta = (C3d->Period() - (anEl - anEf))*0.5;
|
|
delta *= 0.95;
|
|
FirstPar = anEf - delta;
|
|
LastPar = anEl + delta;
|
|
}
|
|
else if (C3d->IsClosed())
|
|
LastPar -= 0.05*(LastPar - FirstPar);
|
|
|
|
BB.Range( NE, FirstPar, LastPar );
|
|
}
|
|
}
|
|
// Modified by skv - Fri Dec 26 17:00:57 2003 OCC4455 End
|
|
|
|
|
|
//=======================================================================
|
|
//function : UpdateVertex
|
|
//purpose :
|
|
//=======================================================================
|
|
|
|
static Standard_Boolean UpdateVertex(TopoDS_Vertex V,
|
|
TopoDS_Edge& OE,
|
|
TopoDS_Edge& NE,
|
|
Standard_Real TolConf)
|
|
{
|
|
BRepAdaptor_Curve OC(OE);
|
|
BRepAdaptor_Curve NC(NE);
|
|
Standard_Real Of = OC.FirstParameter(); Standard_Real Ol = OC.LastParameter();
|
|
Standard_Real Nf = NC.FirstParameter(); Standard_Real Nl = NC.LastParameter();
|
|
Standard_Real U = 0.;
|
|
Standard_Real ParTol = Precision::PConfusion();
|
|
gp_Pnt P = BRep_Tool::Pnt(V);
|
|
Standard_Boolean OK = Standard_False;
|
|
|
|
if (P.Distance(OC.Value(Of)) < TolConf) {
|
|
if (Of >= Nf + ParTol && Of <= Nl + ParTol && P.Distance(NC.Value(Of)) < TolConf) {
|
|
OK = Standard_True;
|
|
U = Of;
|
|
}
|
|
}
|
|
if (P.Distance(OC.Value(Ol)) < TolConf) {
|
|
if (Ol >= Nf + ParTol && Ol <= Nl + ParTol && P.Distance(NC.Value(Ol)) < TolConf) {
|
|
OK = Standard_True;
|
|
U = Ol;
|
|
}
|
|
}
|
|
if (OK) {
|
|
BRep_Builder B;
|
|
TopoDS_Shape aLocalShape = NE.Oriented(TopAbs_FORWARD);
|
|
TopoDS_Edge EE = TopoDS::Edge(aLocalShape);
|
|
// TopoDS_Edge EE = TopoDS::Edge(NE.Oriented(TopAbs_FORWARD));
|
|
aLocalShape = V.Oriented(TopAbs_INTERNAL);
|
|
B.UpdateVertex(TopoDS::Vertex(aLocalShape),
|
|
U,NE,BRep_Tool::Tolerance(NE));
|
|
// B.UpdateVertex(TopoDS::Vertex(V.Oriented(TopAbs_INTERNAL)),
|
|
// U,NE,BRep_Tool::Tolerance(NE));
|
|
}
|
|
return OK;
|
|
}
|
|
|
|
//=======================================================================
|
|
//function : Compute
|
|
//purpose :
|
|
//=======================================================================
|
|
|
|
void BRepOffset_Inter2d::Compute (const Handle(BRepAlgo_AsDes)& AsDes,
|
|
const TopoDS_Face& F,
|
|
const TopTools_IndexedMapOfShape& NewEdges,
|
|
const Standard_Real Tol,
|
|
TopTools_IndexedDataMapOfShapeListOfShape& theDMVV)
|
|
{
|
|
#ifdef DRAW
|
|
NbF2d++;
|
|
NbE2d = 0;
|
|
#endif
|
|
|
|
//Do not intersect the edges of face
|
|
TopTools_MapOfShape EdgesOfFace;
|
|
TopExp_Explorer Explo( F, TopAbs_EDGE );
|
|
for (; Explo.More(); Explo.Next())
|
|
EdgesOfFace.Add( Explo.Current() );
|
|
|
|
//-----------------------------------------------------------
|
|
// calculate intersections2d on faces touched by
|
|
// intersection3d
|
|
//---------------------------------------------------------
|
|
TopTools_ListIteratorOfListOfShape it1LE ;
|
|
TopTools_ListIteratorOfListOfShape it2LE ;
|
|
|
|
//-----------------------------------------------
|
|
// Intersection of edges 2*2.
|
|
//-----------------------------------------------
|
|
const TopTools_ListOfShape& LE = AsDes->Descendant(F);
|
|
TopoDS_Vertex V1,V2;
|
|
Standard_Integer j, i = 1;
|
|
BRepAdaptor_Surface BAsurf(F);
|
|
//
|
|
for ( it1LE.Initialize(LE) ; it1LE.More(); it1LE.Next()) {
|
|
const TopoDS_Edge& E1 = TopoDS::Edge(it1LE.Value());
|
|
j = 1;
|
|
it2LE.Initialize(LE);
|
|
|
|
while (j < i && it2LE.More()) {
|
|
const TopoDS_Edge& E2 = TopoDS::Edge(it2LE.Value());
|
|
//--------------------------------------------------------------
|
|
// Intersections of New edges obtained by intersection
|
|
// between them and with edges of restrictions
|
|
//------------------------------------------------------
|
|
if ( (!EdgesOfFace.Contains(E1) || !EdgesOfFace.Contains(E2)) &&
|
|
(NewEdges.Contains(E1) || NewEdges.Contains(E2)) ) {
|
|
TopoDS_Shape aLocalShape = F.Oriented(TopAbs_FORWARD);
|
|
EdgeInter(TopoDS::Face(aLocalShape),BAsurf,E1,E2,AsDes,Tol,Standard_True, theDMVV);
|
|
// EdgeInter(TopoDS::Face(F.Oriented(TopAbs_FORWARD)),E1,E2,AsDes,Tol,Standard_True);
|
|
}
|
|
it2LE.Next();
|
|
j++;
|
|
}
|
|
i++;
|
|
}
|
|
}
|
|
|
|
//=======================================================================
|
|
//function : ConnexIntByInt
|
|
//purpose :
|
|
//=======================================================================
|
|
void BRepOffset_Inter2d::ConnexIntByInt
|
|
(const TopoDS_Face& FI,
|
|
BRepOffset_Offset& OFI,
|
|
TopTools_DataMapOfShapeShape& MES,
|
|
const TopTools_DataMapOfShapeShape& Build,
|
|
const Handle(BRepAlgo_AsDes)& AsDes2d,
|
|
const Standard_Real Offset,
|
|
const Standard_Real Tol,
|
|
TopTools_IndexedMapOfShape& FacesWithVerts,
|
|
TopTools_IndexedDataMapOfShapeListOfShape& theDMVV)
|
|
{
|
|
|
|
TopTools_DataMapOfShapeListOfShape MVE;
|
|
BRepOffset_Tool::MapVertexEdges(FI,MVE);
|
|
|
|
//---------------------
|
|
// Extension of edges.
|
|
//---------------------
|
|
TopoDS_Edge NE;
|
|
TopTools_DataMapIteratorOfDataMapOfShapeListOfShape it(MVE);
|
|
for ( ; it.More(); it.Next()) {
|
|
const TopTools_ListOfShape& L = it.Value();
|
|
Standard_Boolean YaBuild = 0;
|
|
TopTools_ListIteratorOfListOfShape itL(L);
|
|
for (; itL.More(); itL.Next()) {
|
|
YaBuild = Build.IsBound(itL.Value());
|
|
if (YaBuild) break;
|
|
}
|
|
if (YaBuild) {
|
|
for (itL.Initialize(L); itL.More(); itL.Next()) {
|
|
const TopoDS_Edge& EI = TopoDS::Edge(itL.Value());
|
|
TopoDS_Shape aLocalShape = OFI.Generated(EI);
|
|
const TopoDS_Edge& OE = TopoDS::Edge(aLocalShape);
|
|
if (!MES.IsBound(OE) && !Build.IsBound(EI)) {
|
|
ExtentEdge(OE,NE, Offset);
|
|
MES.Bind (OE,NE);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
TopoDS_Face FIO = TopoDS::Face(OFI.Face());
|
|
if (MES.IsBound(FIO)) FIO = TopoDS::Face(MES(FIO));
|
|
//
|
|
BRepAdaptor_Surface BAsurf(FIO);
|
|
|
|
TopExp_Explorer exp(FI.Oriented(TopAbs_FORWARD),TopAbs_WIRE);
|
|
for (; exp.More(); exp.Next()) {
|
|
const TopoDS_Wire& W = TopoDS::Wire(exp.Current());
|
|
BRepTools_WireExplorer wexp;
|
|
Standard_Boolean end = Standard_False ;
|
|
TopoDS_Edge FirstE,CurE,NextE;
|
|
|
|
TopoDS_Shape aLocalWire = W .Oriented(TopAbs_FORWARD);
|
|
TopoDS_Shape aLocalFace = FI.Oriented(TopAbs_FORWARD);
|
|
wexp.Init(TopoDS::Wire(aLocalWire),TopoDS::Face(aLocalFace));
|
|
if (!wexp.More())
|
|
continue; // Protection from case when explorer does not contain edges.
|
|
CurE = FirstE = wexp.Current();
|
|
TopTools_IndexedMapOfShape Edges;
|
|
Standard_Boolean ToReverse1, ToReverse2;
|
|
ToReverse1 = IsOrientationChanged(Edges, CurE);
|
|
while (!end) {
|
|
wexp.Next();
|
|
if (wexp.More()) {
|
|
NextE = wexp.Current();
|
|
}
|
|
else {
|
|
NextE = FirstE; end = Standard_True;
|
|
}
|
|
if (CurE.IsSame(NextE)) continue;
|
|
|
|
ToReverse2 = IsOrientationChanged(Edges, NextE);
|
|
|
|
TopoDS_Vertex Vref = CommonVertex(CurE, NextE);
|
|
gp_Pnt Pref = BRep_Tool::Pnt(Vref);
|
|
|
|
TopoDS_Shape aLocalShape = OFI.Generated(CurE);
|
|
TopoDS_Edge CEO = TopoDS::Edge(aLocalShape);
|
|
aLocalShape = OFI.Generated(NextE);
|
|
TopoDS_Edge NEO = TopoDS::Edge(aLocalShape);
|
|
//------------------------------------------
|
|
// Inter processing of images of CurE NextE.
|
|
//------------------------------------------
|
|
TopTools_ListOfShape LV1,LV2;
|
|
Standard_Boolean DoInter = 1;
|
|
TopoDS_Shape NE1,NE2;
|
|
|
|
if (Build.IsBound(CurE) && Build.IsBound(NextE)) {
|
|
NE1 = Build(CurE );
|
|
NE2 = Build(NextE);
|
|
}
|
|
else if (Build.IsBound(CurE) && MES.IsBound(NEO)) {
|
|
NE1 = Build(CurE);
|
|
NE2 = MES (NEO);
|
|
}
|
|
else if (Build.IsBound(NextE) && MES.IsBound(CEO)) {
|
|
NE1 = Build(NextE);
|
|
NE2 = MES(CEO);
|
|
Standard_Boolean Tmp = ToReverse1;
|
|
ToReverse1 = ToReverse2;
|
|
ToReverse2 = Tmp;
|
|
}
|
|
else {
|
|
DoInter = 0;
|
|
}
|
|
if (DoInter) {
|
|
//------------------------------------
|
|
// NE1,NE2 can be a compound of Edges.
|
|
//------------------------------------
|
|
Standard_Boolean bCoincide;
|
|
TopExp_Explorer Exp1, Exp2;
|
|
for (Exp1.Init(NE1, TopAbs_EDGE); Exp1.More(); Exp1.Next()) {
|
|
TopoDS_Edge aE1 = TopoDS::Edge(Exp1.Current());
|
|
for (Exp2.Init(NE2, TopAbs_EDGE); Exp2.More(); Exp2.Next()) {
|
|
TopoDS_Edge aE2 = TopoDS::Edge(Exp2.Current());
|
|
|
|
//Correct orientation of edges
|
|
if (ToReverse1)
|
|
aE1.Reverse();
|
|
if (ToReverse2)
|
|
aE2.Reverse();
|
|
//////////////////////////////
|
|
|
|
RefEdgeInter(FIO, BAsurf, aE1, aE2, AsDes2d,
|
|
Tol, Standard_True, Pref, theDMVV, bCoincide);
|
|
}
|
|
}
|
|
//
|
|
// check if some of the offset edges have been
|
|
// generated out of the common vertex
|
|
if (Build.IsBound(Vref)) {
|
|
FacesWithVerts.Add(FI);
|
|
}
|
|
}
|
|
else {
|
|
if (MES.IsBound(CEO)) {
|
|
TopoDS_Vertex V = CommonVertex(CEO,NEO);
|
|
UpdateVertex (V,CEO,TopoDS::Edge(MES(CEO)),Tol);
|
|
AsDes2d->Add (MES(CEO),V);
|
|
}
|
|
else if (MES.IsBound(NEO)) {
|
|
TopoDS_Vertex V = CommonVertex(CEO,NEO);
|
|
UpdateVertex (V,NEO,TopoDS::Edge(MES(NEO)),Tol);
|
|
AsDes2d->Add (MES(NEO),V);
|
|
}
|
|
}
|
|
CurE = NextE;
|
|
ToReverse1 = ToReverse2;
|
|
}
|
|
}
|
|
}
|
|
|
|
//=======================================================================
|
|
//function : ConnexIntByIntInVert
|
|
//purpose : Intersection of the edges generated out of vertices
|
|
//=======================================================================
|
|
void BRepOffset_Inter2d::ConnexIntByIntInVert
|
|
(const TopoDS_Face& FI,
|
|
BRepOffset_Offset& OFI,
|
|
TopTools_DataMapOfShapeShape& MES,
|
|
const TopTools_DataMapOfShapeShape& Build,
|
|
const Handle(BRepAlgo_AsDes)& AsDes,
|
|
const Handle(BRepAlgo_AsDes)& AsDes2d,
|
|
const Standard_Real Tol,
|
|
TopTools_IndexedDataMapOfShapeListOfShape& theDMVV)
|
|
{
|
|
TopoDS_Face FIO = TopoDS::Face(OFI.Face());
|
|
if (MES.IsBound(FIO)) FIO = TopoDS::Face(MES(FIO));
|
|
//
|
|
TopTools_MapOfShape aME;
|
|
const TopTools_ListOfShape& aLE = AsDes->Descendant(FIO);
|
|
TopTools_ListIteratorOfListOfShape aItLE(aLE);
|
|
for (; aItLE.More(); aItLE.Next()) {
|
|
const TopoDS_Shape& aE = aItLE.Value();
|
|
aME.Add(aE);
|
|
}
|
|
//
|
|
BRepAdaptor_Surface BAsurf(FIO);
|
|
//
|
|
TopExp_Explorer exp(FI.Oriented(TopAbs_FORWARD),TopAbs_WIRE);
|
|
for (; exp.More(); exp.Next()) {
|
|
const TopoDS_Wire& W = TopoDS::Wire(exp.Current());
|
|
//
|
|
BRepTools_WireExplorer wexp;
|
|
Standard_Boolean end = Standard_False ;
|
|
TopoDS_Edge FirstE,CurE,NextE;
|
|
//
|
|
TopoDS_Shape aLocalWire = W .Oriented(TopAbs_FORWARD);
|
|
TopoDS_Shape aLocalFace = FI.Oriented(TopAbs_FORWARD);
|
|
wexp.Init(TopoDS::Wire(aLocalWire),TopoDS::Face(aLocalFace));
|
|
if (!wexp.More())
|
|
continue; // Protection from case when explorer does not contain edges.
|
|
//
|
|
CurE = FirstE = wexp.Current();
|
|
while (!end) {
|
|
wexp.Next();
|
|
if (wexp.More()) {
|
|
NextE = wexp.Current();
|
|
}
|
|
else {
|
|
NextE = FirstE; end = Standard_True;
|
|
}
|
|
if (CurE.IsSame(NextE)) continue;
|
|
//
|
|
TopoDS_Vertex Vref = CommonVertex(CurE, NextE);
|
|
gp_Pnt Pref = BRep_Tool::Pnt(Vref);
|
|
if (!Build.IsBound(Vref)) {
|
|
CurE = NextE;
|
|
continue;
|
|
}
|
|
//
|
|
TopoDS_Shape aLocalShape = OFI.Generated(CurE);
|
|
TopoDS_Edge CEO = TopoDS::Edge(aLocalShape);
|
|
aLocalShape = OFI.Generated(NextE);
|
|
TopoDS_Edge NEO = TopoDS::Edge(aLocalShape);
|
|
//
|
|
TopoDS_Shape NE1,NE2;
|
|
|
|
if (Build.IsBound(CurE) && Build.IsBound(NextE)) {
|
|
NE1 = Build(CurE );
|
|
NE2 = Build(NextE);
|
|
}
|
|
else if (Build.IsBound(CurE) && MES.IsBound(NEO)) {
|
|
NE1 = Build(CurE);
|
|
NE2 = MES (NEO);
|
|
}
|
|
else if (Build.IsBound(NextE) && MES.IsBound(CEO)) {
|
|
NE1 = Build(NextE);
|
|
NE2 = MES(CEO);
|
|
}
|
|
else {
|
|
CurE = NextE;
|
|
continue;
|
|
}
|
|
//
|
|
TopExp_Explorer Exp1, Exp2;
|
|
Standard_Boolean bCoincide;
|
|
// intersect edges generated from vertex with the edges of the face
|
|
TopoDS_Shape NE3 = Build(Vref);
|
|
//
|
|
for (Exp2.Init(NE3, TopAbs_EDGE); Exp2.More(); Exp2.Next()) {
|
|
const TopoDS_Edge& aE3 = *(TopoDS_Edge*)&Exp2.Current();
|
|
if (!aME.Contains(aE3)) {
|
|
continue;
|
|
}
|
|
//
|
|
// intersection with first edge
|
|
for (Exp1.Init(NE1, TopAbs_EDGE); Exp1.More(); Exp1.Next()) {
|
|
const TopoDS_Edge& aE1 = TopoDS::Edge(Exp1.Current());
|
|
RefEdgeInter(FIO, BAsurf, aE1, aE3, AsDes2d,
|
|
Tol, Standard_True, Pref, theDMVV, bCoincide);
|
|
if (bCoincide) {
|
|
// in case of coincidence trim the edge E3 the same way as E1
|
|
Store(aE3, AsDes2d->Descendant(aE1), Tol, Standard_True, AsDes2d, theDMVV);
|
|
}
|
|
}
|
|
//
|
|
// intersection with second edge
|
|
for (Exp1.Init(NE2, TopAbs_EDGE); Exp1.More(); Exp1.Next()) {
|
|
const TopoDS_Edge& aE2 = TopoDS::Edge(Exp1.Current());
|
|
RefEdgeInter(FIO, BAsurf, aE2, aE3, AsDes2d,
|
|
Tol, Standard_True, Pref, theDMVV, bCoincide);
|
|
if (bCoincide) {
|
|
// in case of coincidence trim the edge E3 the same way as E2
|
|
Store(aE3, AsDes2d->Descendant(aE2), Tol, Standard_True, AsDes2d, theDMVV);
|
|
}
|
|
}
|
|
//
|
|
// intersection of the edges generated from vertex
|
|
// among themselves
|
|
for (Exp1.Init(NE3, TopAbs_EDGE); Exp1.More(); Exp1.Next()) {
|
|
if (aE3.IsSame(Exp1.Current())) {
|
|
break;
|
|
}
|
|
}
|
|
//
|
|
for (Exp1.Next(); Exp1.More(); Exp1.Next()) {
|
|
const TopoDS_Edge& aE3Next = TopoDS::Edge(Exp1.Current());
|
|
if (aME.Contains(aE3Next)) {
|
|
RefEdgeInter(FIO, BAsurf, aE3Next, aE3, AsDes2d,
|
|
Tol, Standard_True, Pref, theDMVV, bCoincide);
|
|
}
|
|
}
|
|
}
|
|
CurE = NextE;
|
|
}
|
|
}
|
|
}
|
|
|
|
//=======================================================================
|
|
//function : MakeChain
|
|
//purpose :
|
|
//=======================================================================
|
|
static void MakeChain(const TopoDS_Shape& theV,
|
|
const TopTools_IndexedDataMapOfShapeListOfShape& theDMVV,
|
|
TopTools_MapOfShape& theMDone,
|
|
TopTools_ListOfShape& theChain)
|
|
{
|
|
if (theMDone.Add(theV)) {
|
|
theChain.Append(theV);
|
|
const TopTools_ListOfShape* pLV = theDMVV.Seek(theV);
|
|
if (pLV) {
|
|
TopTools_ListIteratorOfListOfShape aIt(*pLV);
|
|
for (; aIt.More(); aIt.Next()) {
|
|
MakeChain(aIt.Value(), theDMVV, theMDone, theChain);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
//=======================================================================
|
|
//function : FuseVertices
|
|
//purpose :
|
|
//=======================================================================
|
|
void BRepOffset_Inter2d::FuseVertices(const TopTools_IndexedDataMapOfShapeListOfShape& theDMVV,
|
|
const Handle(BRepAlgo_AsDes)& theAsDes)
|
|
{
|
|
BRep_Builder aBB;
|
|
TopTools_MapOfShape aMVDone;
|
|
Standard_Integer i, aNb = theDMVV.Extent();
|
|
for (i = 1; i <= aNb; ++i) {
|
|
const TopoDS_Vertex& aV = TopoDS::Vertex(theDMVV.FindKey(i));
|
|
//
|
|
// find chain of vertices
|
|
TopTools_ListOfShape aLVChain;
|
|
MakeChain(aV, theDMVV, aMVDone, aLVChain);
|
|
//
|
|
if (aLVChain.Extent() < 2) {
|
|
continue;
|
|
}
|
|
//
|
|
// make new vertex
|
|
TopoDS_Vertex aVNew;
|
|
BOPTools_AlgoTools::MakeVertex(aLVChain, aVNew);
|
|
//
|
|
TopoDS_Vertex aVNewInt = TopoDS::Vertex(aVNew.Oriented(TopAbs_INTERNAL));
|
|
//
|
|
TopTools_ListIteratorOfListOfShape aIt(aLVChain);
|
|
for (; aIt.More(); aIt.Next()) {
|
|
const TopoDS_Shape& aVOld = aIt.Value();
|
|
// update the parameters on edges
|
|
TopoDS_Vertex aVOldInt = TopoDS::Vertex(aVOld.Oriented(TopAbs_INTERNAL));
|
|
const TopTools_ListOfShape& aLE = theAsDes->Ascendant(aVOld);
|
|
//
|
|
TopTools_ListIteratorOfListOfShape aItLE(aLE);
|
|
for (; aItLE.More(); aItLE.Next()) {
|
|
const TopoDS_Edge& aE = TopoDS::Edge(aItLE.Value());
|
|
Standard_Real aTolE = BRep_Tool::Tolerance(aE);
|
|
Standard_Real aT = BRep_Tool::Parameter(aVOldInt, aE);
|
|
aBB.UpdateVertex(aVNewInt, aT, aE, aTolE);
|
|
}
|
|
// and replace the vertex
|
|
theAsDes->Replace(aVOld, aVNew);
|
|
}
|
|
}
|
|
}
|