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1 | -- Created on: 1992-02-20 |
2 | -- Created by: Remy GILET |
3 | -- Copyright (c) 1992-1999 Matra Datavision |
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4 | -- Copyright (c) 1999-2014 OPEN CASCADE SAS |
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5 | -- |
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6 | -- This file is part of Open CASCADE Technology software library. |
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7 | -- |
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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 |
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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. |
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13 | -- |
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14 | -- Alternatively, this file may be used under the terms of Open CASCADE |
15 | -- commercial license or contractual agreement. |
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16 | |
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17 | private class FunctionTanCirCu from Geom2dGcc inherits FunctionWithDerivative from math |
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18 | |
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19 | ---Purpose: This abstract class describes a Function of 1 Variable |
20 | -- used to find a line tangent to a curve and a circle. |
21 | |
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22 | uses |
23 | Circ2d from gp, |
24 | Curve from Geom2dAdaptor, |
25 | CurveTool from Geom2dGcc |
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26 | |
27 | is |
28 | |
29 | Create (Circ : Circ2d from gp ; |
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30 | Curv : Curve from Geom2dAdaptor ) returns FunctionTanCirCu from Geom2dGcc; |
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31 | |
32 | Value (me : in out ; |
33 | X : Real ; |
34 | F : out Real ) returns Boolean; |
35 | ---Purpose: Computes the value of the function F for the variable X. |
36 | -- It returns True if the computation is successfully done, |
37 | -- False otherwise. |
38 | |
39 | Derivative (me : in out ; |
40 | X : Real ; |
41 | Deriv : out Real ) returns Boolean; |
42 | ---Purpose: Computes the derivative of the function F for the variable X. |
43 | -- It returns True if the computation is successfully done, |
44 | -- False otherwise. |
45 | |
46 | Values (me : in out ; |
47 | X : Real ; |
48 | F : out Real ; |
49 | Deriv : out Real ) returns Boolean; |
50 | ---Purpose: Computes the value and the derivative of the function F |
51 | -- for the variable X. |
52 | -- It returns True if the computation is successfully done, |
53 | -- False otherwise. |
54 | |
55 | fields |
56 | |
57 | TheCirc : Circ2d from gp; |
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58 | Curve : Curve from Geom2dAdaptor; |
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59 | -- Modified by Sergey KHROMOV - Thu Apr 5 09:50:18 2001 Begin |
60 | myWeight : Real; |
61 | -- Modified by Sergey KHROMOV - Thu Apr 5 09:50:19 2001 End |
62 | |
63 | end FunctionTanCirCu; |