1 -- Created on: 1994-09-02
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.
17 private generic class FuncCurExt from LProp (Curve as any;
18 Vec as any; -- as Vec or Vec2d
19 Pnt as any; -- as Pnt or Pnt2d
20 Dir as any; -- as Dir or Dir2d Vec
21 Tool as any) -- as Tool(Curve, Pnt, Vec)
22 inherits FunctionWithDerivative from math
23 ---Purpose: Function used to find the extremas of curvature in 2d.
26 Create ( C : Curve ; Tol : Real) returns FuncCurExt from LProp;
28 Value (me : in out; X : Real; F : out Real)
29 ---Purpose: Returns the value for the variable <X>.
32 Derivative (me : in out; X : Real; D : out Real)
33 ---Purpose: Returns the derivative for the variable <X>.
36 Values (me : in out ; X : Real; F : out Real; D : out Real)
37 ---Purpose: Returns the value of the function and the derivative
38 -- for the variable <X>.
41 IsMinKC (me ; Param : Real)
42 ---Purpose: True if Param corresponds to a minus
43 -- of the radius of curvature.
48 epsX : Real from Standard;