// Copyright (C) 2007-2014 CEA/DEN, EDF R&D, OPEN CASCADE // // Copyright (C) 2003-2007 OPEN CASCADE, EADS/CCR, LIP6, CEA/DEN, // CEDRAT, EDF R&D, LEG, PRINCIPIA R&D, BUREAU VERITAS // // This library is free software; you can redistribute it and/or // modify it under the terms of the GNU Lesser General Public // License as published by the Free Software Foundation; either // version 2.1 of the License, or (at your option) any later version. // // This library is distributed in the hope that it will be useful, // but WITHOUT ANY WARRANTY; without even the implied warranty of // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU // Lesser General Public License for more details. // // You should have received a copy of the GNU Lesser General Public // License along with this library; if not, write to the Free Software // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA // // See http://www.salome-platform.org/ or email : webmaster.salome@opencascade.com // // File: BlockFix.cxx // Created: Tue Dec 7 11:59:05 2004 // Author: Pavel DURANDIN #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include IMPLEMENT_STANDARD_HANDLE(BlockFix_SphereSpaceModifier, BRepTools_Modification); IMPLEMENT_STANDARD_RTTIEXT(BlockFix_SphereSpaceModifier, BRepTools_Modification); //======================================================================= //function : BlockFix_SphereSpaceModifier //purpose : //======================================================================= BlockFix_SphereSpaceModifier::BlockFix_SphereSpaceModifier() { myMapOfFaces.Clear(); myMapOfSpheres.Clear(); } //======================================================================= //function : ~BlockFix_SphereSpaceModifier //purpose : //======================================================================= BlockFix_SphereSpaceModifier::~BlockFix_SphereSpaceModifier() {} //======================================================================= //function : SetTolerance //purpose : //======================================================================= void BlockFix_SphereSpaceModifier::SetTolerance(const Standard_Real Tol) { myTolerance = Tol; } //======================================================================= //function : NewSurface //purpose : //======================================================================= static Standard_Boolean ModifySurface(const TopoDS_Face& aFace, const Handle(Geom_Surface)& aSurface, Handle(Geom_Surface)& aNewSurface) { Handle(Geom_Surface) S = aSurface; if(S->IsKind(STANDARD_TYPE(Geom_RectangularTrimmedSurface))) { Handle(Geom_RectangularTrimmedSurface) RTS = Handle(Geom_RectangularTrimmedSurface)::DownCast(S); S = RTS->BasisSurface(); } if(S->IsKind(STANDARD_TYPE(Geom_SphericalSurface))) { Standard_Real Umin, Umax, Vmin, Vmax; ShapeAnalysis::GetFaceUVBounds(aFace,Umin, Umax, Vmin, Vmax); Standard_Real PI2 = M_PI/2.; if(Vmax > PI2 - Precision::PConfusion() || Vmin < -PI2+::Precision::PConfusion()) { Handle(Geom_SphericalSurface) aSphere = Handle(Geom_SphericalSurface)::DownCast(S); gp_Sphere sp = aSphere->Sphere(); //modified by jgv, 12.11.2012 for issue 21777// Standard_Real Radius = sp.Radius(); Standard_Real HalfArea = 2.*M_PI*Radius*Radius; GProp_GProps Properties; BRepGProp::SurfaceProperties(aFace, Properties); Standard_Real anArea = Properties.Mass(); Standard_Real AreaTol = Radius*Radius*1.e-6; if (anArea > HalfArea - AreaTol) //no chance to avoid singularity return Standard_False; /////////////////////////////////////////////// gp_Ax3 ax3 = sp.Position(); if(Abs(Vmax-Vmin) < PI2) { gp_Ax3 axnew3(ax3.Axis().Location(), ax3.Direction()^ax3.XDirection(),ax3.XDirection()); sp.SetPosition(axnew3); Handle(Geom_SphericalSurface) aNewSphere = new Geom_SphericalSurface(sp); aNewSurface = aNewSphere; return Standard_True; } else { gp_Pnt PC = ax3.Location(); Standard_Real Vpar; if(fabs(PI2-Vmax)>fabs(-PI2-Vmin)) Vpar = (PI2+Vmax)/2.; else Vpar = (-PI2+Vmin)/2.; Standard_Real Upar = (Umin+Umax)/2.;; gp_Pnt PN,PX; S->D0(Upar,Vpar,PN); S->D0(Upar+PI2,0.,PX); gp_Dir newNorm(gp_Vec(PC,PN)); gp_Dir newDirX(gp_Vec(PC,PX)); gp_Ax3 axnew3(ax3.Axis().Location(), newNorm, newDirX); sp.SetPosition(axnew3); Handle(Geom_SphericalSurface) aNewSphere = new Geom_SphericalSurface(sp); aNewSurface = aNewSphere; return Standard_True; } } } return Standard_False; } Standard_Boolean BlockFix_SphereSpaceModifier::NewSurface(const TopoDS_Face& F, Handle(Geom_Surface)& S, TopLoc_Location& L,Standard_Real& Tol, Standard_Boolean& RevWires, Standard_Boolean& RevFace) { TopLoc_Location LS; Handle(Geom_Surface) SIni = BRep_Tool::Surface(F, LS); //check if pole of the sphere in the parametric space if(ModifySurface(F, SIni, S)) { RevWires = Standard_False; RevFace = Standard_False; L = LS; Tol = BRep_Tool::Tolerance(F); Standard_Integer anIndex = myMapOfSpheres.Add(S); myMapOfFaces.Bind(F,anIndex); return Standard_True; } return Standard_False; } //======================================================================= //function : NewCurve //purpose : //======================================================================= Standard_Boolean BlockFix_SphereSpaceModifier::NewCurve(const TopoDS_Edge& /*E*/,Handle(Geom_Curve)& /*C*/, TopLoc_Location& /*L*/,Standard_Real& /*Tol*/) { return Standard_False; } //======================================================================= //function : NewPoint //purpose : //======================================================================= Standard_Boolean BlockFix_SphereSpaceModifier::NewPoint(const TopoDS_Vertex& /*V*/, gp_Pnt& /*P*/, Standard_Real& /*Tol*/) { return Standard_False; } //======================================================================= //function : NewCurve2d //purpose : //======================================================================= Standard_Boolean BlockFix_SphereSpaceModifier::NewCurve2d(const TopoDS_Edge& E,const TopoDS_Face& F, const TopoDS_Edge& /*NewE*/,const TopoDS_Face& /*NewF*/, Handle(Geom2d_Curve)& C,Standard_Real& Tol) { //check if undelying surface of the face was modified if(myMapOfFaces.IsBound(F)) { Standard_Integer anIndex = myMapOfFaces.Find(F); Handle(Geom_Surface) aNewSphere = Handle(Geom_Surface)::DownCast(myMapOfSpheres.FindKey(anIndex)); Standard_Real f,l; TopLoc_Location LC, LS; Handle(Geom_Curve) C3d = BRep_Tool::Curve ( E, LC, f, l ); Handle(Geom_Surface) S = BRep_Tool::Surface(F, LS); //taking into accound the orientation of the seam C = BRep_Tool::CurveOnSurface(E,F,f,l); Tol = BRep_Tool::Tolerance(E); BRep_Builder B; TopoDS_Edge TempE; B.MakeEdge(TempE); B.Add(TempE, TopExp::FirstVertex(E)); B.Add(TempE, TopExp::LastVertex(E)); if(!C3d.IsNull()) B.UpdateEdge(TempE, Handle(Geom_Curve)::DownCast(C3d->Transformed(LC.Transformation())), Precision::Confusion()); B.Range(TempE, f, l); Handle(ShapeFix_Edge) sfe = new ShapeFix_Edge; Handle(Geom_Surface) STemp = Handle(Geom_Surface)::DownCast(aNewSphere->Transformed(LS.Transformation())); TopLoc_Location LTemp; LTemp.Identity(); Standard_Boolean isClosed = BRep_Tool::IsClosed (E, F); Standard_Real aWorkTol = 2*myTolerance+Tol; sfe->FixAddPCurve(TempE, STemp, LTemp, isClosed, Max(Precision::Confusion(), aWorkTol)); sfe->FixSameParameter(TempE); //keep the orientation of original edge TempE.Orientation(E.Orientation()); C = BRep_Tool::CurveOnSurface(TempE, STemp, LTemp, f, l); // shifting seam of sphere if(isClosed && !C.IsNull()) { Standard_Real f2,l2; Handle(Geom2d_Curve) c22 = BRep_Tool::CurveOnSurface(TopoDS::Edge(TempE.Reversed()),STemp, LTemp,f2,l2); Standard_Real dPreci = Precision::PConfusion()*Precision::PConfusion(); if((C->Value(f).SquareDistance(c22->Value(f2)) < dPreci) ||(C->Value(l).SquareDistance(c22->Value(l2)) < dPreci)) { gp_Vec2d shift(S->UPeriod(),0.); C->Translate(shift); } } //sphere was modified return Standard_True; } return Standard_False; } //======================================================================= //function : NewParameter //purpose : //======================================================================= Standard_Boolean BlockFix_SphereSpaceModifier::NewParameter(const TopoDS_Vertex& /*V*/,const TopoDS_Edge& /*E*/, Standard_Real& /*P*/,Standard_Real& /*Tol*/) { return Standard_False; } //======================================================================= //function : Continuity //purpose : //======================================================================= GeomAbs_Shape BlockFix_SphereSpaceModifier::Continuity(const TopoDS_Edge& E,const TopoDS_Face& F1, const TopoDS_Face& F2,const TopoDS_Edge& /*NewE*/, const TopoDS_Face& /*NewF1*/,const TopoDS_Face& /*NewF2*/) { return BRep_Tool::Continuity(E,F1,F2); }