1 // Created on: 1994-03-03
2 // Created by: Yves FRICAUD
3 // Copyright (c) 1994-1999 Matra Datavision
4 // Copyright (c) 1999-2014 OPEN CASCADE SAS
6 // This file is part of Open CASCADE Technology software library.
8 // This library is free software; you can redistribute it and/or modify it under
9 // the terms of the GNU Lesser General Public License version 2.1 as published
10 // by the Free Software Foundation, with special exception defined in the file
11 // OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
12 // distribution for complete text of the license and disclaimer of any warranty.
14 // Alternatively, this file may be used under the terms of Open CASCADE
15 // commercial license or contractual agreement.
18 #include <Bisector.hxx>
19 #include <Geom2d_Curve.hxx>
20 #include <gp_Pnt2d.hxx>
21 #include <gp_Vec2d.hxx>
23 //======================================================================
24 // function : IsConvex
26 //======================================================================
27 Standard_Boolean Bisector::IsConvex(const Handle(Geom2d_Curve)& Cu,
28 const Standard_Real Sign)
31 Standard_Real U1 = (Cu->LastParameter() + Cu->FirstParameter())/2.;
35 Standard_Real Tol = 1.e-5;
36 if (Sign*(V1^V2) < Tol) return Standard_True; // <= 0.
37 else return Standard_False;