1 // Created on: 1992-11-19
2 // Created by: Remi LEQUETTE
3 // Copyright (c) 1992-1999 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.
17 #ifndef _BRepClass_Intersector_HeaderFile
18 #define _BRepClass_Intersector_HeaderFile
20 #include <Standard.hxx>
21 #include <Standard_DefineAlloc.hxx>
22 #include <Standard_Handle.hxx>
24 #include <Geom2dInt_IntConicCurveOfGInter.hxx>
25 #include <Standard_Real.hxx>
31 //! Intersect an Edge with a segment.
32 //! Implement the Intersector2d required by the classifier.
33 class BRepClass_Intersector : public Geom2dInt_IntConicCurveOfGInter
40 Standard_EXPORT BRepClass_Intersector();
42 //! Intersect the line segment and the edge.
43 Standard_EXPORT void Perform (const gp_Lin2d& L, const Standard_Real P, const Standard_Real Tol, const BRepClass_Edge& E);
45 //! Returns in <T>, <N> and <C> the tangent, normal
46 //! and curvature of the edge <E> at parameter value
48 Standard_EXPORT void LocalGeometry (const BRepClass_Edge& E, const Standard_Real U, gp_Dir2d& T, gp_Dir2d& N, Standard_Real& C) const;
50 //! Returns the maximum tolerance
51 Standard_Real MaxTolerance()
53 return myMaxTolerance;
56 //! Sets the maximum tolerance at
57 //! which to start checking in the intersector
58 void SetMaxTolerance(const Standard_Real theValue)
60 myMaxTolerance = theValue;
74 Standard_Real myMaxTolerance;
85 #endif // _BRepClass_Intersector_HeaderFile