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1 | // Created on: 1992-01-20 |
| 2 | // Created by: Remi 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 | |
| 17 | #include <gp_Vec2d.hxx> |
| 18 | #include <gp_Pnt2d.hxx> |
| 19 | |
| 20 | GccIter_FunctionTanObl:: |
| 21 | GccIter_FunctionTanObl(const TheCurve& C , |
| 22 | const gp_Dir2d& Dir ) { |
| 23 | TheCurv = C; |
| 24 | TheDirection = Dir; |
| 25 | } |
| 26 | |
| 27 | |
| 28 | Standard_Boolean GccIter_FunctionTanObl:: |
| 29 | Value (const Standard_Real X , |
| 30 | Standard_Real& Fval ) { |
| 31 | gp_Pnt2d Point; |
| 32 | gp_Vec2d Vect; |
| 33 | TheCurveTool::D1(TheCurv,X,Point,Vect); |
| 34 | Standard_Real NormeD1 = Vect.Magnitude(); |
| 35 | Fval = TheDirection.XY().Crossed(Vect.XY())/NormeD1; |
| 36 | return Standard_True; |
| 37 | } |
| 38 | |
| 39 | Standard_Boolean GccIter_FunctionTanObl:: |
| 40 | Derivative (const Standard_Real X , |
| 41 | Standard_Real& Deriv ) { |
| 42 | gp_Pnt2d Point; |
| 43 | gp_Vec2d Vec1; |
| 44 | gp_Vec2d Vec2; |
| 45 | TheCurveTool::D2(TheCurv,X,Point,Vec1,Vec2); |
| 46 | Standard_Real NormeD1 = Vec1.Magnitude(); |
| 47 | Deriv = TheDirection.XY().Crossed(Vec2.XY())/NormeD1- |
| 48 | Vec1.XY().Dot(Vec2.XY())*TheDirection.XY().Crossed(Vec1.XY())/NormeD1; |
| 49 | return Standard_True; |
| 50 | } |
| 51 | |
| 52 | Standard_Boolean GccIter_FunctionTanObl:: |
| 53 | Values (const Standard_Real X , |
| 54 | Standard_Real& Fval , |
| 55 | Standard_Real& Deriv ) { |
| 56 | gp_Pnt2d Point; |
| 57 | gp_Vec2d Vec1; |
| 58 | gp_Vec2d Vec2; |
| 59 | TheCurveTool::D2(TheCurv,X,Point,Vec1,Vec2); |
| 60 | Standard_Real NormeD1 = Vec1.Magnitude(); |
| 61 | Fval = TheDirection.XY().Crossed(Vec1.XY())/NormeD1; |
| 62 | Deriv = TheDirection.XY().Crossed(Vec2.XY())/NormeD1- |
| 63 | Vec1.XY().Dot(Vec2.XY())*TheDirection.XY().Crossed(Vec1.XY())/NormeD1; |
| 64 | return Standard_True; |
| 65 | } |
| 66 | |
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