0028389: Data Exchange - Import of STEP Saved Views and Clipping Planes

[occt.git] / src / GeomAdaptor / GeomAdaptor.cxx

// Created on: 1995-05-03
// Created by: Bruno DUMORTIER
// Copyright (c) 1995-1999 Matra Datavision
// Copyright (c) 1999-2014 OPEN CASCADE SAS
//
// This file is part of Open CASCADE Technology software library.
//
// This library is free software; you can redistribute it and/or modify it under
// the terms of the GNU Lesser General Public License version 2.1 as published
// by the Free Software Foundation, with special exception defined in the file
// OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
// distribution for complete text of the license and disclaimer of any warranty.
//
// Alternatively, this file may be used under the terms of Open CASCADE
// commercial license or contractual agreement.


#include <Adaptor3d_Curve.hxx>
#include <Adaptor3d_HCurve.hxx>
#include <Adaptor3d_HSurface.hxx>
#include <Adaptor3d_Surface.hxx>
#include <Geom_BezierCurve.hxx>
#include <Geom_BezierSurface.hxx>
#include <Geom_BSplineCurve.hxx>
#include <Geom_BSplineSurface.hxx>
#include <Geom_Circle.hxx>
#include <Geom_ConicalSurface.hxx>
#include <Geom_Curve.hxx>
#include <Geom_CylindricalSurface.hxx>
#include <Geom_Ellipse.hxx>
#include <Geom_Hyperbola.hxx>
#include <Geom_Line.hxx>
#include <Geom_OffsetSurface.hxx>
#include <Geom_Parabola.hxx>
#include <Geom_Plane.hxx>
#include <Geom_RectangularTrimmedSurface.hxx>
#include <Geom_SphericalSurface.hxx>
#include <Geom_Surface.hxx>
#include <Geom_SurfaceOfLinearExtrusion.hxx>
#include <Geom_SurfaceOfRevolution.hxx>
#include <Geom_ToroidalSurface.hxx>
#include <Geom_TrimmedCurve.hxx>
#include <GeomAdaptor.hxx>

//=======================================================================
//function : MakeCurve
//purpose  : 
//=======================================================================
Handle(Geom_Curve) GeomAdaptor::MakeCurve (const Adaptor3d_Curve& HC)
{
  Handle(Geom_Curve) C;
  
  switch (HC.GetType())
  {
  case GeomAbs_Line:
    C = new Geom_Line(HC.Line());
    break;

  case GeomAbs_Circle:
    C = new Geom_Circle(HC.Circle());
    break;

  case GeomAbs_Ellipse:
    C = new Geom_Ellipse(HC.Ellipse());
    break;

  case GeomAbs_Parabola:
    C = new Geom_Parabola(HC.Parabola());
    break;

  case GeomAbs_Hyperbola:
    C = new Geom_Hyperbola(HC.Hyperbola());
    break;

  case GeomAbs_BezierCurve:
    C = Handle(Geom_BezierCurve)::DownCast(HC.Bezier()->Copy());
    break;

  case GeomAbs_BSplineCurve:
    C = Handle(Geom_BSplineCurve)::DownCast(HC.BSpline()->Copy());
    break;

  default:
    Standard_DomainError::Raise("GeomAdaptor::MakeCurve : OtherCurve");

  }

  // trim the curve if necassary.
  if ((! C.IsNull() &&
      (HC.FirstParameter() != C->FirstParameter())) ||
      (HC.LastParameter()  != C->LastParameter())) {

    C = new Geom_TrimmedCurve(C,HC.FirstParameter(),HC.LastParameter());
  }

  return C;
}


//=======================================================================
//function : MakeSurface
//purpose  : 
//=======================================================================
Handle(Geom_Surface) GeomAdaptor::MakeSurface(const Adaptor3d_Surface& HS,
                                              const Standard_Boolean theTrimFlag)
{
  Handle(Geom_Surface) S;

  switch ( HS.GetType())
  {
  case GeomAbs_Plane:
    S = new Geom_Plane(HS.Plane());
    break;

  case GeomAbs_Cylinder:
    S = new Geom_CylindricalSurface(HS.Cylinder());
    break;

  case GeomAbs_Cone:
    S = new Geom_ConicalSurface(HS.Cone());
    break;

  case GeomAbs_Sphere:
    S = new Geom_SphericalSurface(HS.Sphere());
    break;

  case GeomAbs_Torus:
    S = new Geom_ToroidalSurface(HS.Torus());
    break;

  case GeomAbs_BezierSurface:
    S = Handle(Geom_BezierSurface)::DownCast(HS.Bezier()->Copy());
    break;

  case GeomAbs_BSplineSurface:
    S = Handle(Geom_BSplineSurface)::DownCast(HS.BSpline()->Copy());
    break;

  case GeomAbs_SurfaceOfRevolution:
    S = new Geom_SurfaceOfRevolution
      (GeomAdaptor::MakeCurve(HS.BasisCurve()->Curve()),HS.AxeOfRevolution());
    break;

  case GeomAbs_SurfaceOfExtrusion:
    S = new Geom_SurfaceOfLinearExtrusion
      (GeomAdaptor::MakeCurve(HS.BasisCurve()->Curve()),HS.Direction());
    break;

  case GeomAbs_OffsetSurface:
    S = new Geom_OffsetSurface(GeomAdaptor::MakeSurface(HS.BasisSurface()->Surface()),
                               HS.OffsetValue());
    break;

  case GeomAbs_OtherSurface:
    Standard_DomainError::Raise("GeomAdaptor::MakeSurface : OtherSurface");
    break;
  }

  if ( S.IsNull() || !theTrimFlag)
    return S;

  // trim the surface if necassary.
  Standard_Real U1, U2, V1, V2;
  S->Bounds(U1, U2, V1, V2);
  if ((HS.FirstUParameter() != U1 ) ||
      (HS.LastUParameter () != U2 ) ||
      (HS.FirstVParameter() != V1 ) ||
      (HS.LastVParameter () != V2 )   ) {

    S = new Geom_RectangularTrimmedSurface
      (S,HS.FirstUParameter(),HS.LastUParameter(),
         HS.FirstVParameter(),HS.LastVParameter());
  }

  return S;
}