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

// File:	Bisector.cxx
// Created:	Tue mar 3 17:54:52 1994
// Author:	Yves FRICAUD
//		<yfr@phylox>


#include <Bisector.ixx>
#include <gp_Pnt2d.hxx>
#include <gp_Vec2d.hxx>

//======================================================================
// function : IsConvex
// Purpose  :
//======================================================================
Standard_Boolean Bisector::IsConvex(const Handle(Geom2d_Curve)& Cu,
				    const Standard_Real         Sign)
{
  
  Standard_Real U1 = (Cu->LastParameter() + Cu->FirstParameter())/2.;
  gp_Pnt2d      P1;
  gp_Vec2d      V1,V2;
  Cu->D2(U1,P1,V1,V2);
  Standard_Real Tol = 1.e-5;
  if (Sign*(V1^V2) < Tol) return Standard_True; // <= 0.
  else                    return Standard_False;
}
Commit	Line	Data
7fd59977	1	// File: Bisector.cxx
	2	// Created: Tue mar 3 17:54:52 1994
	3	// Author: Yves FRICAUD
	4	// <yfr@phylox>
	5
	6
	7	#include <Bisector.ixx>
	8	#include <gp_Pnt2d.hxx>
	9	#include <gp_Vec2d.hxx>
	10
	11	//======================================================================
	12	// function : IsConvex
	13	// Purpose :
	14	//======================================================================
	15	Standard_Boolean Bisector::IsConvex(const Handle(Geom2d_Curve)& Cu,
	16	const Standard_Real Sign)
	17	{
	18
	19	Standard_Real U1 = (Cu->LastParameter() + Cu->FirstParameter())/2.;
	20	gp_Pnt2d P1;
	21	gp_Vec2d V1,V2;
	22	Cu->D2(U1,P1,V1,V2);
	23	Standard_Real Tol = 1.e-5;
	24	if (Sign*(V1^V2) < Tol) return Standard_True; // <= 0.
	25	else return Standard_False;
	26	}
	27