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// File: StepToGeom_MakeTransformation3d.cxx
// Created: Tue Feb 16 11:18:48 1999
// Author: Andrey BETENEV
// sln 23.10.2001. CTS23496: If problems with creation of direction occur default direction is used (StepToGeom_MakeTransformation3d(...) function)
#include <StepToGeom_MakeTransformation3d.ixx>
#include <StepToGeom_MakeCartesianPoint.hxx>
#include <StepToGeom_MakeDirection.hxx>
#include <StepGeom_CartesianPoint.hxx>
#include <StepGeom_Direction.hxx>
#include <Geom_CartesianPoint.hxx>
#include <Geom_Direction.hxx>
#include <gp_Ax3.hxx>
//=======================================================================
//function : StepToGeom_MakeTransformation3d
//purpose :
//=======================================================================
Standard_Boolean StepToGeom_MakeTransformation3d::Convert (const Handle(StepGeom_CartesianTransformationOperator3d)& SCTO, gp_Trsf& CT)
{
Handle(Geom_CartesianPoint) CP;
if (StepToGeom_MakeCartesianPoint::Convert(SCTO->LocalOrigin(),CP))
{
const gp_Pnt Pgp = CP->Pnt();
// sln 23.10.2001. CTS23496: If problems with creation of direction occur default direction is used
gp_Dir D1(1.,0.,0.);
const Handle(StepGeom_Direction) A1 = SCTO->Axis1();
if (!A1.IsNull()) {
Handle(Geom_Direction) D;
if (StepToGeom_MakeDirection::Convert(A1,D))
D1 = D->Dir();
}
gp_Dir D2(0.,1.,0.);
const Handle(StepGeom_Direction) A2 = SCTO->Axis2();
if (!A2.IsNull()) {
Handle(Geom_Direction) D;
if (StepToGeom_MakeDirection::Convert(A2,D))
D2 = D->Dir();
}
Standard_Boolean isDefaultDirectionUsed = Standard_True;
gp_Dir D3;
const Handle(StepGeom_Direction) A3 = SCTO->Axis3();
if (!A3.IsNull()) {
Handle(Geom_Direction) D;
if(StepToGeom_MakeDirection::Convert(A3,D)) {
D3 = D->Dir();
isDefaultDirectionUsed = Standard_False;
}
}
if(isDefaultDirectionUsed)
D3 = D1.Crossed(D2);
const gp_Ax3 result(Pgp,D3,D1);
CT.SetTransformation(result);
CT = CT.Inverted(); //:n8 abv 16 Feb 99: tr8_as2_db.stp: reverse for accordance with LV tool
return Standard_True;
}
return Standard_False;
}
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