0031687: Draw Harness, ViewerTest - extend command vrenderparams with option updating...

[occt.git] / src / gce / gce_MakeHypr.cxx

// Created on: 1992-09-02
// Created by: Remi GILET
// Copyright (c) 1992-1999 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 <gce_MakeHypr.hxx>
#include <gp_Ax2.hxx>
#include <gp_Hypr.hxx>
#include <gp_Lin.hxx>
#include <gp_Pnt.hxx>
#include <StdFail_NotDone.hxx>

//=========================================================================
//   Creation d une Hyperbole 3d de gp de centre <Center> et de sommets   +
//   <S1> et <S2>.                                                        +
//   <CenterS1> donne le grand axe .                                      +
//   <S1> donne le grand rayon et <S2> le petit rayon.                    +
//=========================================================================
gce_MakeHypr::gce_MakeHypr(const gp_Pnt&   S1     ,
			   const gp_Pnt&   S2     ,
			   const gp_Pnt&   Center ) 
{
  gp_Dir XAxis(gp_XYZ(S1.XYZ()-Center.XYZ()));
  gp_Lin L(Center,XAxis);
  Standard_Real D = S1.Distance(Center);
  Standard_Real d = L.Distance(S2);
  if (d > D) { TheError = gce_InvertAxis; }
  else {
    gp_Dir Norm(XAxis.Crossed(gp_Dir(gp_XYZ(S2.XYZ()-Center.XYZ()))));
    TheHypr = gp_Hypr(gp_Ax2(Center,Norm,XAxis),D,d);
    TheError = gce_Done;
  }
}

gce_MakeHypr::gce_MakeHypr(const gp_Ax2&       A2          ,
			   const Standard_Real MajorRadius ,
			   const Standard_Real MinorRadius ) 
{
  if (MajorRadius < MinorRadius) { TheError = gce_InvertRadius; }
  else if (MajorRadius < 0.0) { TheError = gce_NegativeRadius; }
  else {
    TheHypr = gp_Hypr(A2,MajorRadius,MinorRadius);
    TheError = gce_Done;
  }
}

const gp_Hypr& gce_MakeHypr::Value() const
{ 
  StdFail_NotDone_Raise_if (TheError != gce_Done,
                            "gce_MakeHypr::Value() - no result");
  return TheHypr;
}

const gp_Hypr& gce_MakeHypr::Operator() const 
{
  return Value();
}

gce_MakeHypr::operator gp_Hypr() const
{
  return Value();
}