include/opencascade/BRepLProp.hxx

0001 // Created on: 1994-02-24
0002 // Created by: Laurent BOURESCHE
0003 // Copyright (c) 1994-1999 Matra Datavision
0004 // Copyright (c) 1999-2014 OPEN CASCADE SAS
0005 //
0006 // This file is part of Open CASCADE Technology software library.
0007 //
0008 // This library is free software; you can redistribute it and/or modify it under
0009 // the terms of the GNU Lesser General Public License version 2.1 as published
0010 // by the Free Software Foundation, with special exception defined in the file
0011 // OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
0012 // distribution for complete text of the license and disclaimer of any warranty.
0013 //
0014 // Alternatively, this file may be used under the terms of Open CASCADE
0015 // commercial license or contractual agreement.
0016
0017 #ifndef _BRepLProp_HeaderFile
0018 #define _BRepLProp_HeaderFile
0019
0020 #include <Standard.hxx>
0021 #include <Standard_DefineAlloc.hxx>
0022 #include <Standard_Handle.hxx>
0023
0024 #include <GeomAbs_Shape.hxx>
0025 #include <Standard_Real.hxx>
0026 class BRepAdaptor_Curve;
0027
0028
0029 //! These global functions compute the degree of
0030 //! continuity of a curve built by concatenation of two
0031 //! edges at their junction point.
0032 class BRepLProp
0033 {
0034 public:
0035
0036   DEFINE_STANDARD_ALLOC
0037
0038
0039   //! Computes the regularity at the junction between C1 and
0040   //! C2. The point u1 on C1 and the point u2 on  C2 must be
0041   //! confused.   tl  and ta  are  the  linear  and  angular
0042   //! tolerance used two compare the derivative.
0043   Standard_EXPORT static GeomAbs_Shape Continuity (const BRepAdaptor_Curve& C1, const BRepAdaptor_Curve& C2, const Standard_Real u1, const Standard_Real u2, const Standard_Real tl, const Standard_Real ta);
0044
0045   //! The same as preceding but using the standard tolerances from package Precision.
0046   Standard_EXPORT static GeomAbs_Shape Continuity (const BRepAdaptor_Curve& C1, const BRepAdaptor_Curve& C2, const Standard_Real u1, const Standard_Real u2);
0047
0048 };
0049
0050 #endif // _BRepLProp_HeaderFile