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// File: ShapeCustom_ConvertToBSpline.cxx
// Created: Thu Jun 17 16:00:22 1999
// Author: data exchange team
// <det@lenox>
#include <ShapeCustom_ConvertToBSpline.ixx>
#include <Geom_RectangularTrimmedSurface.hxx>
#include <Geom_OffsetSurface.hxx>
#include <Geom_SurfaceOfLinearExtrusion.hxx>
#include <Geom_SurfaceOfRevolution.hxx>
#include <Geom_BSplineSurface.hxx>
#include <Geom_Plane.hxx>
#include <BRep_Tool.hxx>
#include <ShapeConstruct.hxx>
#include <Precision.hxx>
#include <BRep_TEdge.hxx>
#include <BRep_ListIteratorOfListOfCurveRepresentation.hxx>
#include <BRep_GCurve.hxx>
#include <BRepTools.hxx>
//=======================================================================
//function : ShapeCustom_ConvertToBSpline
//purpose :
//=======================================================================
ShapeCustom_ConvertToBSpline::ShapeCustom_ConvertToBSpline():
myExtrMode(Standard_True), myRevolMode(Standard_True),
myOffsetMode(Standard_True), myPlaneMode(Standard_False)
{
}
//=======================================================================
//function : IsToConvert
//purpose :
//=======================================================================
Standard_Boolean ShapeCustom_ConvertToBSpline::IsToConvert(const Handle(Geom_Surface) &S,
Handle(Geom_Surface) &SS) const
{
SS = S;
if(S->IsKind(STANDARD_TYPE(Geom_RectangularTrimmedSurface))) {
Handle(Geom_RectangularTrimmedSurface) RTS =
Handle(Geom_RectangularTrimmedSurface)::DownCast ( S );
SS = RTS->BasisSurface();
}
if(SS->IsKind(STANDARD_TYPE(Geom_OffsetSurface))) {
if(myOffsetMode)
return Standard_True;
else {
Handle(Geom_OffsetSurface) OS = Handle(Geom_OffsetSurface)::DownCast ( SS );
Handle(Geom_Surface) basis = OS->BasisSurface();
Handle(Geom_Surface) tmp;
return IsToConvert(basis,tmp);
}
}
if ( SS->IsKind(STANDARD_TYPE(Geom_SurfaceOfLinearExtrusion)) )
return myExtrMode;
if ( SS->IsKind(STANDARD_TYPE(Geom_SurfaceOfRevolution)) )
return myRevolMode;
if ( SS->IsKind(STANDARD_TYPE(Geom_Plane)) )
return myPlaneMode;
return Standard_False;
}
//=======================================================================
//function : NewSurface
//purpose :
//=======================================================================
Standard_Boolean ShapeCustom_ConvertToBSpline::NewSurface (const TopoDS_Face& F,
Handle(Geom_Surface)& S,
TopLoc_Location& L,
Standard_Real& Tol,
Standard_Boolean& RevWires,
Standard_Boolean& RevFace)
{
S = BRep_Tool::Surface(F,L);
Standard_Real U1,U2,V1,V2;
S->Bounds(U1,U2,V1,V2);
Standard_Real Umin, Umax,Vmin,Vmax;
BRepTools::UVBounds(F,Umin, Umax, Vmin, Vmax);
if(Precision::IsInfinite(U1) || Precision::IsInfinite(U2)) {
U1 = Umin;
U2 = Umax;
}
if(Precision::IsInfinite(V1) || Precision::IsInfinite(V2)) {
V1 = Vmin;
V2 = Vmax;
}
Handle(Geom_Surface) surf;
if ( ! IsToConvert ( S, surf) ) return Standard_False;
Handle(Geom_Surface) res;
if(surf->IsKind(STANDARD_TYPE(Geom_OffsetSurface))&&!myOffsetMode) {
Handle(Geom_OffsetSurface) OS = Handle(Geom_OffsetSurface)::DownCast ( surf );
Handle(Geom_Surface) basis = OS->BasisSurface();
Standard_Real offset = OS->Offset();
Handle(Geom_BSplineSurface) bspl = ShapeConstruct::
ConvertSurfaceToBSpline(basis,U1,U2,V1,V2,Precision::Approximation(),
surf->Continuity(),10000,15);
Handle(Geom_OffsetSurface) nOff = new Geom_OffsetSurface(bspl,offset);
res = nOff;
}
else {
GeomAbs_Shape cnt = surf->Continuity();
if(surf->IsKind(STANDARD_TYPE(Geom_OffsetSurface)))
cnt = GeomAbs_C0; //pdn 30.06.99 because of hang-up in GeomConvert_ApproxSurface
res = ShapeConstruct::ConvertSurfaceToBSpline(surf,U1,U2,V1,V2,Precision::Approximation(),
cnt,10000,15);
}
if(S->IsKind(STANDARD_TYPE(Geom_RectangularTrimmedSurface)) ) {
Handle(Geom_RectangularTrimmedSurface) RTS =
Handle(Geom_RectangularTrimmedSurface)::DownCast ( S );
Standard_Real UF, UL, VF, VL;
RTS->Bounds ( UF, UL, VF, VL );
S = new Geom_RectangularTrimmedSurface ( res, UF, UL, VF, VL );
}
else
S = res;
Tol = BRep_Tool::Tolerance(F);
RevWires = Standard_False;
RevFace = Standard_False;
return Standard_True;
}
//=======================================================================
//function : NewCurve
//purpose :
//=======================================================================
Standard_Boolean ShapeCustom_ConvertToBSpline::NewCurve (const TopoDS_Edge& E,
Handle(Geom_Curve)& C,
TopLoc_Location& L,
Standard_Real& Tol)
{
//:p5 abv 26 Feb 99: force copying of edge if any its pcurve will be replaced
Handle(BRep_TEdge)& TE = *((Handle(BRep_TEdge)*)&E.TShape());
// iterate on pcurves
BRep_ListIteratorOfListOfCurveRepresentation itcr(TE->Curves());
for ( ; itcr.More(); itcr.Next() ) {
Handle(BRep_GCurve) GC = Handle(BRep_GCurve)::DownCast(itcr.Value());
if ( GC.IsNull() || ! GC->IsCurveOnSurface() ) continue;
Handle(Geom_Surface) S = GC->Surface();
Handle(Geom_Surface) ES;
if ( ! IsToConvert ( S, ES ) ) continue;
Standard_Real f, l;
C = BRep_Tool::Curve ( E, L, f, l );
if ( ! C.IsNull() ) C = Handle(Geom_Curve)::DownCast ( C->Copy() );
Tol = BRep_Tool::Tolerance ( E );
return Standard_True;
}
return Standard_False;
}
//=======================================================================
//function : NewPoint
//purpose :
//=======================================================================
Standard_Boolean ShapeCustom_ConvertToBSpline::NewPoint (const TopoDS_Vertex& /*V*/,
gp_Pnt& /*P*/, Standard_Real& /*Tol*/)
{
return Standard_False;
}
//=======================================================================
//function : NewCurve2d
//purpose :
//=======================================================================
Standard_Boolean ShapeCustom_ConvertToBSpline::NewCurve2d (const TopoDS_Edge& E,
const TopoDS_Face& F,
const TopoDS_Edge& NewE,
const TopoDS_Face& /*NewF*/,
Handle(Geom2d_Curve)& C,
Standard_Real& Tol)
{
TopLoc_Location L;
Handle(Geom_Surface) S = BRep_Tool::Surface(F,L);
Handle(Geom_Surface) ES;
// just copy pcurve if either its surface is changing or edge was copied
if ( ! IsToConvert ( S, ES ) && E.IsSame ( NewE ) ) return Standard_False;
Standard_Real f, l;
C = BRep_Tool::CurveOnSurface(E,F,f,l);
if ( ! C.IsNull() )
C = Handle(Geom2d_Curve)::DownCast ( C->Copy() );
Tol = BRep_Tool::Tolerance ( E );
return Standard_True;
}
//=======================================================================
//function : NewParameter
//purpose :
//=======================================================================
Standard_Boolean ShapeCustom_ConvertToBSpline::NewParameter (const TopoDS_Vertex& /*V*/,
const TopoDS_Edge& /*E*/,
Standard_Real& /*P*/,
Standard_Real& /*Tol*/)
{
return Standard_False;
}
//=======================================================================
//function : Continuity
//purpose :
//=======================================================================
GeomAbs_Shape ShapeCustom_ConvertToBSpline::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);
}
void ShapeCustom_ConvertToBSpline::SetExtrusionMode(const Standard_Boolean extrMode)
{
myExtrMode = extrMode;
}
void ShapeCustom_ConvertToBSpline::SetRevolutionMode(const Standard_Boolean revolMode)
{
myRevolMode = revolMode;
}
void ShapeCustom_ConvertToBSpline::SetOffsetMode(const Standard_Boolean offsetMode)
{
myOffsetMode = offsetMode;
}
void ShapeCustom_ConvertToBSpline::SetPlaneMode(const Standard_Boolean planeMode)
{
myPlaneMode = planeMode;
}
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