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225 lines
7.8 KiB
C++
225 lines
7.8 KiB
C++
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// File: BlockFix.cxx
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// Created: Tue Dec 7 11:59:05 2004
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// Author: Pavel DURANDIN
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// Copyright: Open CASCADE SA 2004
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#include <BlockFix_SphereSpaceModifier.ixx>
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#include <TopLoc_Location.hxx>
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#include <BRep_Tool.hxx>
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#include <Geom_SphericalSurface.hxx>
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#include <Geom_RectangularTrimmedSurface.hxx>
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#include <ShapeAnalysis.hxx>
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#include <gp_Sphere.hxx>
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#include <BRep_Builder.hxx>
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#include <TopoDS.hxx>
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#include <TopoDS_Vertex.hxx>
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#include <TopoDS_Edge.hxx>
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#include <TopExp.hxx>
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#include <ShapeFix_Edge.hxx>
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#include <Geom_Curve.hxx>
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#include <Geom2d_Curve.hxx>
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//=======================================================================
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//function : BlockFix_SphereSpaceModifier
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//purpose :
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//=======================================================================
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BlockFix_SphereSpaceModifier::BlockFix_SphereSpaceModifier()
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{
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myMapOfFaces.Clear();
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myMapOfSpheres.Clear();
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}
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//=======================================================================
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//function : SetTolerance
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//purpose :
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//=======================================================================
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void BlockFix_SphereSpaceModifier::SetTolerance(const Standard_Real Tol)
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{
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myTolerance = Tol;
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}
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//=======================================================================
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//function : NewSurface
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//purpose :
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//=======================================================================
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static Standard_Boolean ModifySurface(const TopoDS_Face& aFace,
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const Handle(Geom_Surface)& aSurface,
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Handle(Geom_Surface)& aNewSurface)
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{
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Handle(Geom_Surface) S = aSurface;
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if(S->IsKind(STANDARD_TYPE(Geom_RectangularTrimmedSurface))) {
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Handle(Geom_RectangularTrimmedSurface) RTS =
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Handle(Geom_RectangularTrimmedSurface)::DownCast(S);
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S = RTS->BasisSurface();
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}
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if(S->IsKind(STANDARD_TYPE(Geom_SphericalSurface))) {
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Standard_Real Umin, Umax, Vmin, Vmax;
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ShapeAnalysis::GetFaceUVBounds(aFace,Umin, Umax, Vmin, Vmax);
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Standard_Real PI2 = PI/2.;
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if(Vmax > PI2 - Precision::PConfusion() || Vmin < -PI2+::Precision::PConfusion()) {
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if(Abs(Vmax-Vmin) < PI2) {
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Handle(Geom_SphericalSurface) aSphere = Handle(Geom_SphericalSurface)::DownCast(S);
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gp_Sphere sp = aSphere->Sphere();
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gp_Ax3 ax3 = sp.Position();
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gp_Ax3 axnew3(ax3.Axis().Location(), ax3.Direction()^ax3.XDirection(),ax3.XDirection());
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sp.SetPosition(axnew3);
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Handle(Geom_SphericalSurface) aNewSphere = new Geom_SphericalSurface(sp);
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aNewSurface = aNewSphere;
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return Standard_True;
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}
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}
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}
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return Standard_False;
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}
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Standard_Boolean BlockFix_SphereSpaceModifier::NewSurface(const TopoDS_Face& F,
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Handle(Geom_Surface)& S,
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TopLoc_Location& L,Standard_Real& Tol,
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Standard_Boolean& RevWires,
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Standard_Boolean& RevFace)
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{
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TopLoc_Location LS;
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Handle(Geom_Surface) SIni = BRep_Tool::Surface(F, LS);
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//check if pole of the sphere in the parametric space
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if(ModifySurface(F, SIni, S)) {
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RevWires = Standard_False;
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RevFace = Standard_False;
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L = LS;
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Tol = BRep_Tool::Tolerance(F);
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Standard_Integer anIndex = myMapOfSpheres.Add(S);
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myMapOfFaces.Bind(F,anIndex);
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return Standard_True;
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}
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return Standard_False;
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}
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//=======================================================================
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//function : NewCurve
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//purpose :
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//=======================================================================
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Standard_Boolean BlockFix_SphereSpaceModifier::NewCurve(const TopoDS_Edge& /*E*/,Handle(Geom_Curve)& /*C*/,
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TopLoc_Location& /*L*/,Standard_Real& /*Tol*/)
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{
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return Standard_False;
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}
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//=======================================================================
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//function : NewPoint
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//purpose :
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//=======================================================================
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Standard_Boolean BlockFix_SphereSpaceModifier::NewPoint(const TopoDS_Vertex& /*V*/,
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gp_Pnt& /*P*/,
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Standard_Real& /*Tol*/)
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{
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return Standard_False;
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}
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//=======================================================================
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//function : NewCurve2d
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//purpose :
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//=======================================================================
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Standard_Boolean BlockFix_SphereSpaceModifier::NewCurve2d(const TopoDS_Edge& E,const TopoDS_Face& F,
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const TopoDS_Edge& /*NewE*/,const TopoDS_Face& /*NewF*/,
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Handle(Geom2d_Curve)& C,Standard_Real& Tol)
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{
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//check if undelying surface of the face was modified
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if(myMapOfFaces.IsBound(F)) {
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Standard_Integer anIndex = myMapOfFaces.Find(F);
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Handle(Geom_Surface) aNewSphere = Handle(Geom_Surface)::DownCast(myMapOfSpheres.FindKey(anIndex));
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Standard_Real f,l;
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TopLoc_Location LC, LS;
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Handle(Geom_Curve) C3d = BRep_Tool::Curve ( E, LC, f, l );
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Handle(Geom_Surface) S = BRep_Tool::Surface(F, LS);
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//taking into accound the orientation of the seam
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C = BRep_Tool::CurveOnSurface(E,F,f,l);
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Tol = BRep_Tool::Tolerance(E);
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BRep_Builder B;
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TopoDS_Edge TempE;
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B.MakeEdge(TempE);
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B.Add(TempE, TopExp::FirstVertex(E));
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B.Add(TempE, TopExp::LastVertex(E));
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if(!C3d.IsNull())
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B.UpdateEdge(TempE, Handle(Geom_Curve)::DownCast(C3d->Transformed(LC.Transformation())), Precision::Confusion());
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B.Range(TempE, f, l);
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Handle(ShapeFix_Edge) sfe = new ShapeFix_Edge;
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Handle(Geom_Surface) STemp = Handle(Geom_Surface)::DownCast(aNewSphere->Transformed(LS.Transformation()));
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TopLoc_Location LTemp;
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LTemp.Identity();
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Standard_Boolean isClosed = BRep_Tool::IsClosed (E, F);
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Standard_Real aWorkTol = 2*myTolerance+Tol;
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sfe->FixAddPCurve(TempE, STemp, LTemp, isClosed, Max(Precision::Confusion(), aWorkTol));
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sfe->FixSameParameter(TempE);
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//keep the orientation of original edge
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TempE.Orientation(E.Orientation());
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C = BRep_Tool::CurveOnSurface(TempE, STemp, LTemp, f, l);
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// shifting seam of sphere
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if(isClosed && !C.IsNull()) {
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Standard_Real f2,l2;
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Handle(Geom2d_Curve) c22 =
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BRep_Tool::CurveOnSurface(TopoDS::Edge(TempE.Reversed()),STemp, LTemp,f2,l2);
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Standard_Real dPreci = Precision::PConfusion()*Precision::PConfusion();
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if((C->Value(f).SquareDistance(c22->Value(f2)) < dPreci)
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||(C->Value(l).SquareDistance(c22->Value(l2)) < dPreci)) {
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gp_Vec2d shift(S->UPeriod(),0.);
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C->Translate(shift);
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}
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}
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//sphere was modified
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return Standard_True;
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}
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return Standard_False;
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}
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//=======================================================================
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//function : NewParameter
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//purpose :
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//=======================================================================
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Standard_Boolean BlockFix_SphereSpaceModifier::NewParameter(const TopoDS_Vertex& /*V*/,const TopoDS_Edge& /*E*/,
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Standard_Real& /*P*/,Standard_Real& /*Tol*/)
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{
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return Standard_False;
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}
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//=======================================================================
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//function : Continuity
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//purpose :
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//=======================================================================
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GeomAbs_Shape BlockFix_SphereSpaceModifier::Continuity(const TopoDS_Edge& E,const TopoDS_Face& F1,
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const TopoDS_Face& F2,const TopoDS_Edge& /*NewE*/,
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const TopoDS_Face& /*NewF1*/,const TopoDS_Face& /*NewF2*/)
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{
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return BRep_Tool::Continuity(E,F1,F2);
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}
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