0023024: Update headers of OCCT files

[occt.git] / src / Geom2dHatch / Geom2dHatch_Intersector.cxx

// Created on: 1994-03-23
// Created by: Jean Marc LACHAUME
// Copyright (c) 1994-1999 Matra Datavision
// Copyright (c) 1999-2012 OPEN CASCADE SAS
//
// The content of this file is subject to the Open CASCADE Technology Public
// License Version 6.5 (the "License"). You may not use the content of this file
// except in compliance with the License. Please obtain a copy of the License
// at http://www.opencascade.org and read it completely before using this file.
//
// The Initial Developer of the Original Code is Open CASCADE S.A.S., having its
// main offices at: 1, place des Freres Montgolfier, 78280 Guyancourt, France.
//
// The Original Code and all software distributed under the License is
// distributed on an "AS IS" basis, without warranty of any kind, and the
// Initial Developer hereby disclaims all such warranties, including without
// limitation, any warranties of merchantability, fitness for a particular
// purpose or non-infringement. Please see the License for the specific terms
// and conditions governing the rights and limitations under the License.



#include <Geom2dHatch_Intersector.ixx>
#include <ElCLib.hxx>
#include <Geom2d_Line.hxx>
#include <Precision.hxx>
#include <Geom2dLProp_CLProps2d.hxx>


//=======================================================================
//function : Geom2dHatch_Intersector
//purpose  : 
//=======================================================================

Geom2dHatch_Intersector::Geom2dHatch_Intersector() :
myConfusionTolerance(0.0),
myTangencyTolerance(0.0)
{
}

//=======================================================================
//function : Perform
//purpose  : 
//=======================================================================

void  Geom2dHatch_Intersector::Perform(const gp_Lin2d& L, 
				       const Standard_Real P, 
				       const Standard_Real Tol, 
				       const Geom2dAdaptor_Curve& C)
{
  
//Standard_Real pfbid,plbid;
  IntRes2d_Domain DL;
  if(P!=RealLast()) 
    DL.SetValues(L.Location(),0.,Tol,ElCLib::Value(P,L),P,Tol);
  else 
    DL.SetValues(L.Location(),0.,Tol,Standard_True);
  
  IntRes2d_Domain DE(C.Value(C.FirstParameter()),
		     C.FirstParameter(),Precision::PIntersection(),
		     C.Value(C.LastParameter()),
		     C.LastParameter(),Precision::PIntersection());
  
  Handle(Geom2d_Line) GL= new Geom2d_Line(L);
  Geom2dAdaptor_Curve CGA(GL);
  void *ptrpoureviterlesproblemesdeconst = (void *)(&C);

  Geom2dInt_GInter Inter(CGA,
			 DL,
			 *((Geom2dAdaptor_Curve *)ptrpoureviterlesproblemesdeconst),
			 DE,
			 Precision::PConfusion(),
			 Precision::PIntersection());
  this->SetValues(Inter);
}

//=======================================================================
//function : LocalGeometry
//purpose  : 
//=======================================================================

void  Geom2dHatch_Intersector::LocalGeometry(const Geom2dAdaptor_Curve& E, 
					     const Standard_Real U, 
					     gp_Dir2d& Tang, 
					     gp_Dir2d& Norm, 
					     Standard_Real& C) const 
{
  //Standard_Real f,l;
  Geom2dLProp_CLProps2d Prop(E.Curve(),U,2,Precision::PConfusion());

  if(!Prop.IsTangentDefined()) return;

  Prop.Tangent(Tang);
  C = Prop.Curvature();
  if (C > Precision::PConfusion() && C<RealLast())
    Prop.Normal(Norm);
  else
    Norm.SetCoord(Tang.Y(),-Tang.X());
}