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1 | // Created on: 1992-01-20 |
2 | // Created by: Remi GILET |
3 | // Copyright (c) 1992-1999 Matra Datavision |
4 | // Copyright (c) 1999-2014 OPEN CASCADE SAS |
5 | // |
6 | // This file is part of Open CASCADE Technology software library. |
7 | // |
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. |
13 | // |
14 | // Alternatively, this file may be used under the terms of Open CASCADE |
15 | // commercial license or contractual agreement. |
16 | |
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17 | |
18 | #include <Geom2dAdaptor_Curve.hxx> |
19 | #include <Geom2dGcc_CurveTool.hxx> |
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20 | #include <Geom2dGcc_FunctionTanObl.hxx> |
21 | #include <gp_Dir2d.hxx> |
22 | #include <gp_Pnt2d.hxx> |
23 | #include <gp_Vec2d.hxx> |
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24 | |
25 | Geom2dGcc_FunctionTanObl:: |
26 | Geom2dGcc_FunctionTanObl(const Geom2dAdaptor_Curve& C, |
27 | const gp_Dir2d& Dir ) |
28 | { |
29 | TheCurv = C; |
30 | TheDirection = Dir; |
31 | } |
32 | |
33 | |
34 | Standard_Boolean Geom2dGcc_FunctionTanObl:: |
35 | Value (const Standard_Real X, |
36 | Standard_Real& Fval ) { |
37 | gp_Pnt2d Point; |
38 | gp_Vec2d Vect; |
39 | Geom2dGcc_CurveTool::D1(TheCurv,X,Point,Vect); |
40 | Standard_Real NormeD1 = Vect.Magnitude(); |
41 | Fval = TheDirection.XY().Crossed(Vect.XY())/NormeD1; |
42 | return Standard_True; |
43 | } |
44 | |
45 | Standard_Boolean Geom2dGcc_FunctionTanObl:: |
46 | Derivative (const Standard_Real X, |
47 | Standard_Real& Deriv ) |
48 | { |
49 | gp_Pnt2d Point; |
50 | gp_Vec2d Vec1; |
51 | gp_Vec2d Vec2; |
52 | Geom2dGcc_CurveTool::D2(TheCurv,X,Point,Vec1,Vec2); |
53 | Standard_Real NormeD1 = Vec1.Magnitude(); |
54 | Deriv = TheDirection.XY().Crossed(Vec2.XY())/NormeD1- |
55 | Vec1.XY().Dot(Vec2.XY())*TheDirection.XY().Crossed(Vec1.XY())/NormeD1; |
56 | return Standard_True; |
57 | } |
58 | |
59 | Standard_Boolean Geom2dGcc_FunctionTanObl:: |
60 | Values (const Standard_Real X , |
61 | Standard_Real& Fval , |
62 | Standard_Real& Deriv ) { |
63 | gp_Pnt2d Point; |
64 | gp_Vec2d Vec1; |
65 | gp_Vec2d Vec2; |
66 | Geom2dGcc_CurveTool::D2(TheCurv,X,Point,Vec1,Vec2); |
67 | Standard_Real NormeD1 = Vec1.Magnitude(); |
68 | Fval = TheDirection.XY().Crossed(Vec1.XY())/NormeD1; |
69 | Deriv = TheDirection.XY().Crossed(Vec2.XY())/NormeD1- |
70 | Vec1.XY().Dot(Vec2.XY())*TheDirection.XY().Crossed(Vec1.XY())/NormeD1; |
71 | return Standard_True; |
72 | } |
73 | |