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occt/src/StepToGeom/StepToGeom_MakeAxis2Placement.cxx
2012-03-05 19:23:40 +04:00

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1.9 KiB
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// File: StepToGeom_MakeAxis2Placement.cxx
// Created: Thu Jul 1 16:41:35 1993
// Author: Martine LANGLOIS
// sln 22.10.2001. CTS23496: If problems with creation of direction occur default direction is used (StepToGeom_MakeAxis2Placement(...) function)
#include <StepToGeom_MakeAxis2Placement.ixx>
#include <StepToGeom_MakeCartesianPoint.hxx>
#include <StepToGeom_MakeDirection.hxx>
#include <Geom_CartesianPoint.hxx>
#include <Geom_Direction.hxx>
#include <gp_Pnt.hxx>
#include <gp_Dir.hxx>
#include <gp_Ax2.hxx>
//=============================================================================
// Creation d' un Axis2Placement de Geom a partir d' un axis2_placement_3d
// de Step
//=============================================================================
Standard_Boolean StepToGeom_MakeAxis2Placement::Convert (const Handle(StepGeom_Axis2Placement3d)& SA, Handle(Geom_Axis2Placement)& CA)
{
Handle(Geom_CartesianPoint) P;
if (StepToGeom_MakeCartesianPoint::Convert(SA->Location(),P))
{
const gp_Pnt Pgp = P->Pnt();
// sln 22.10.2001. CTS23496: If problems with creation of direction occur default direction is used (StepToGeom_MakeLine(...) function)
gp_Dir Ngp(0.,0.,1.);
if (SA->HasAxis())
{
Handle(Geom_Direction) D;
if (StepToGeom_MakeDirection::Convert(SA->Axis(),D))
Ngp = D->Dir();
}
gp_Ax2 gpAx2;
Standard_Boolean isDefaultDirectionUsed = Standard_True;
if (SA->HasRefDirection())
{
Handle(Geom_Direction) D;
if (StepToGeom_MakeDirection::Convert(SA->RefDirection(),D))
{
const gp_Dir Vxgp = D->Dir();
if (!Ngp.IsParallel(Vxgp,Precision::Angular()))
{
gpAx2 = gp_Ax2(Pgp, Ngp, Vxgp);
isDefaultDirectionUsed = Standard_False;
}
}
}
if(isDefaultDirectionUsed)
gpAx2 = gp_Ax2(Pgp, Ngp);
CA = new Geom_Axis2Placement(gpAx2);
return Standard_True;
}
return Standard_False;
}