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// File: StepToGeom_MakeSurfaceOfRevolution.cxx
// Created: Mon Jul 5 10:37:59 1993
// Author: Martine LANGLOIS
#include <StepToGeom_MakeSurfaceOfRevolution.ixx>
#include <StepGeom_SurfaceOfRevolution.hxx>
#include <Geom_SurfaceOfRevolution.hxx>
#include <Geom_Axis1Placement.hxx>
#include <StepToGeom_MakeAxis1Placement.hxx>
#include <Geom_Curve.hxx>
#include <Geom_Circle.hxx>
#include <Geom_Ellipse.hxx>
#include <Geom_TrimmedCurve.hxx>
#include <StepToGeom_MakeCurve.hxx>
#include <gp_Ax1.hxx>
#include <gp_Pnt.hxx>
#include <gp_Dir.hxx>
#include <gp_Lin.hxx>
//=============================================================================
// Creation d' une SurfaceOfRevolution de Geom a partir d' une
// SurfaceOfRevolution de Step
//=============================================================================
Standard_Boolean StepToGeom_MakeSurfaceOfRevolution::Convert (const Handle(StepGeom_SurfaceOfRevolution)& SS, Handle(Geom_SurfaceOfRevolution)& CS)
{
Handle(Geom_Curve) C;
if (StepToGeom_MakeCurve::Convert(SS->SweptCurve(),C))
{
Handle(Geom_Axis1Placement) A1;
if (StepToGeom_MakeAxis1Placement::Convert(SS->AxisPosition(),A1))
{
const gp_Ax1 A( A1->Ax1() );
//skl for OCC952 (one bad case revolution of circle)
if ( C->IsKind(STANDARD_TYPE(Geom_Circle)) || C->IsKind(STANDARD_TYPE(Geom_Ellipse)) )
{
const Handle(Geom_Conic) conic = Handle(Geom_Conic)::DownCast(C);
const gp_Pnt pc = conic->Location();
const gp_Lin rl (A);
if (rl.Distance(pc) < Precision::Confusion()) { //pc lies on A2
const gp_Dir dirline = A.Direction();
const gp_Dir norm = conic->Axis().Direction();
if( dirline.IsNormal(norm,Precision::Angular()) ) { //A2 lies on plane of circle
//change parametrization for trimming
gp_Ax2 axnew(pc,norm,dirline.Reversed());
conic->SetPosition(axnew);
C = new Geom_TrimmedCurve(conic, 0., PI);
}
}
}
CS = new Geom_SurfaceOfRevolution(C, A);
return Standard_True;
}
}
return Standard_False;
}
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