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d5f74e42d6
License statement text corrected; compiler warnings caused by Bison 2.41 disabled for MSVC; a few other compiler warnings on 54-bit Windows eliminated by appropriate type cast Wrong license statements corrected in several files. Copyright and license statements added in XSD and GLSL files. Copyright year updated in some files. Obsolete documentation files removed from DrawResources.
260 lines
9.2 KiB
C++
260 lines
9.2 KiB
C++
// 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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//:l8 abv 15.01.99: CTS22022: writing correct pcurves for indirect tori
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//:p5 abv 26.02.99: PRO18207: force copying of edge if any its pcurve is to be replaced
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//szv#4 S4163
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//S4181 pdn 20.04.99 Modification of indirect rectangular trimming surfaces and taking
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// locations into account
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//szv 03.01.01 PositiveCones merged in
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#include <ShapeCustom_DirectModification.ixx>
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#include <gp_Mat.hxx>
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#include <Geom_ConicalSurface.hxx>
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#include <Geom_ElementarySurface.hxx>
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#include <Geom_RectangularTrimmedSurface.hxx>
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#include <Precision.hxx>
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#include <TopoDS.hxx>
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#include <BRep_Builder.hxx>
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#include <BRep_Tool.hxx>
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#include <BRepTools.hxx>
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#include <BRep_TEdge.hxx>
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#include <BRep_ListIteratorOfListOfCurveRepresentation.hxx>
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#include <BRep_GCurve.hxx>
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//=======================================================================
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//function : ShapeCustom_DirectModification
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//purpose :
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//=======================================================================
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ShapeCustom_DirectModification::ShapeCustom_DirectModification()
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{
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}
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//S4181 returns 0 - none, 1 - indirect, 2 - negative cone, 3 - indirect negative cone
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static Standard_Integer IsIndirectSurface (Handle(Geom_Surface) &S,
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TopLoc_Location &L)
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{
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Standard_Integer result = 0;
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Handle(Geom_Surface) TS = S;
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while (TS->IsKind(STANDARD_TYPE(Geom_RectangularTrimmedSurface)))
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TS = Handle(Geom_RectangularTrimmedSurface)::DownCast(TS)->BasisSurface();
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Handle(Geom_ElementarySurface) ES = Handle(Geom_ElementarySurface)::DownCast(TS);
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if (!ES.IsNull()) {
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// is the surface indirect ?
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gp_Trsf t = L.Transformation();
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Standard_Boolean neg = t.IsNegative();
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Standard_Boolean det = ( t.VectorialPart().Determinant() < 0.0 );
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Standard_Boolean dir = ES->Position().Direct();
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if ( (Standard_Boolean)( neg != det ) == dir ) result = 1;
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Handle(Geom_ConicalSurface) CS = Handle(Geom_ConicalSurface)::DownCast(ES);
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if (!CS.IsNull()) {
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// does the cone have negative semiangle ?
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if ( CS->SemiAngle() < 0.0 ) result += 2;
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}
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if (result) S = TS;
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}
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return result;
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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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Standard_Boolean ShapeCustom_DirectModification::NewSurface (const TopoDS_Face& F,
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Handle(Geom_Surface)& S,
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TopLoc_Location& L,
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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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S = BRep_Tool::Surface(F,L);
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switch (IsIndirectSurface(S,L)) {
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case 1: { // Indirect surface
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// UReverse a copy of S
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S = S->UReversed();
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RevWires = Standard_True;
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RevFace = Standard_True;
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break;
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}
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case 2: { // Negative cone
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// U- and VReverse a copy of S
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S = S->VReversed();
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S->UReverse();
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RevWires = Standard_False;
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RevFace = Standard_False;
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break;
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}
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case 3: { // Indirect negative cone
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// VReverse a copy of S
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S = S->VReversed();
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RevWires = Standard_True;
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RevFace = Standard_True;
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break;
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}
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default: return Standard_False;
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}
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Tol = BRep_Tool::Tolerance(F);
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return Standard_True;
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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 ShapeCustom_DirectModification::NewCurve (const TopoDS_Edge& E,
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Handle(Geom_Curve)& C,
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TopLoc_Location& L,
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Standard_Real& Tol)
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{
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//:p5 abv 26 Feb 99: force copying of edge if any its pcurve will be replaced
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Handle(BRep_TEdge)& TE = *((Handle(BRep_TEdge)*)&E.TShape());
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// iterate on pcurves
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BRep_ListIteratorOfListOfCurveRepresentation itcr(TE->Curves());
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for ( ; itcr.More(); itcr.Next() ) {
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Handle(BRep_GCurve) GC = Handle(BRep_GCurve)::DownCast(itcr.Value());
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if ( GC.IsNull() || ! GC->IsCurveOnSurface() ) continue;
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Handle(Geom_Surface) S = GC->Surface();
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TopLoc_Location Loc = GC->Location();
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if ( ! IsIndirectSurface ( S, Loc ) ) continue;
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Standard_Real f, l;
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C = BRep_Tool::Curve ( E, L, f, l );
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if ( ! C.IsNull() ) C = Handle(Geom_Curve)::DownCast ( C->Copy() );
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Tol = BRep_Tool::Tolerance(E);
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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 : NewPoint
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//purpose :
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//=======================================================================
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Standard_Boolean ShapeCustom_DirectModification::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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// 3d points are never modified
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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 ShapeCustom_DirectModification::NewCurve2d (const TopoDS_Edge& E,
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const TopoDS_Face& F,
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const TopoDS_Edge& NewE,
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const TopoDS_Face& NewF,
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Handle(Geom2d_Curve)& C,
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Standard_Real& Tol)
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{
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TopLoc_Location L;
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Handle(Geom_Surface) S = BRep_Tool::Surface(F,L);
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Standard_Integer result = IsIndirectSurface ( S, L );
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if ( !result && E.IsSame(NewE) ) return Standard_False;
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Standard_Real f, l;
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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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if ( result ) {
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gp_Trsf2d T;
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switch (result) {
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case 1: { // Indirect surface
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// mirror the PCurve about the V axis
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T.SetMirror(gp::OY2d());
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C = Handle(Geom2d_Curve)::DownCast(C->Transformed(T));
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break;
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}
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case 2: { // Negative cone
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// mirror the PCurve about the U and V axis
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T.SetMirror(gp::OX2d());
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C = Handle(Geom2d_Curve)::DownCast(C->Transformed(T));
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T.SetMirror(gp::OY2d());
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C->Transform(T);
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break;
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}
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case 3: { // Indirect negative cone
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// mirror the PCurve about the U axis
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T.SetMirror(gp::OX2d());
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C = Handle(Geom2d_Curve)::DownCast(C->Transformed(T));
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break;
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}
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}
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//#26 rln When seam edge contains triangulations trimming is lost by BRep_Builder::UpdateEdge
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if (BRepTools::IsReallyClosed (E, F)) {
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//szv#4:S4163:12Mar99 SGI warning
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TopoDS_Shape sh = NewE.Reversed();
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Handle(Geom2d_Curve) tmp = BRep_Tool::CurveOnSurface( TopoDS::Edge(sh), NewF, f, l );
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if (tmp.IsNull()) {
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tmp = BRep_Tool::CurveOnSurface (E, F, f, l);
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BRep_Builder B;
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B.UpdateEdge (NewE, tmp, C, NewF, Tol);
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B.Range (NewE, NewF, f, l);
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//anyway, tmp will be removed later by BRepTools_Modifier
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}
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}
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}
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else {
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//:p5 abv 26 Feb 99: force copying of pcurves if edge was copied
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if ( ! C.IsNull() ) C = Handle(Geom2d_Curve)::DownCast ( C->Copy() );
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}
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return Standard_True;
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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 ShapeCustom_DirectModification::NewParameter (const TopoDS_Vertex& /*V*/,
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const TopoDS_Edge& /*E*/,
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Standard_Real& /*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 : Continuity
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//purpose :
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//=======================================================================
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GeomAbs_Shape ShapeCustom_DirectModification::Continuity (const TopoDS_Edge& E,
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const TopoDS_Face& F1,
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const TopoDS_Face& F2,
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const TopoDS_Edge& /*NewE*/,
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const TopoDS_Face& /*NewF1*/,
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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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