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1 | // Created on: 1992-11-05 |
| 2 | // Created by: Gilles DEBARBOUILLE |
| 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 | |
| 17 | #ifndef _Units_ShiftedToken_HeaderFile |
| 18 | #define _Units_ShiftedToken_HeaderFile |
| 19 | |
| 20 | #include <Standard.hxx> |
| 21 | #include <Standard_Type.hxx> |
| 22 | |
| 23 | #include <Standard_Real.hxx> |
| 24 | #include <Units_Token.hxx> |
| 25 | #include <Standard_CString.hxx> |
| 26 | #include <Standard_Integer.hxx> |
| 27 | class Units_Dimensions; |
| 28 | class Units_Token; |
| 29 | |
| 30 | |
| 31 | class Units_ShiftedToken; |
| 32 | DEFINE_STANDARD_HANDLE(Units_ShiftedToken, Units_Token) |
| 33 | |
| 34 | //! The ShiftedToken class inherits from Token and |
| 35 | //! describes tokens which have a gap in addition of |
| 36 | //! the multiplicative factor. This kind of token |
| 37 | //! allows the description of linear functions which |
| 38 | //! do not pass through the origin, of the form : |
| 39 | //! |
| 40 | //! y = ax +b |
| 41 | //! |
| 42 | //! where <x> and <y> are the unknown variables, <a> |
| 43 | //! the mutiplicative factor, and <b> the gap relative |
| 44 | //! to the ordinate axis. |
| 45 | //! |
| 46 | //! An example is the tranlation between the Celsius |
| 47 | //! and Fahrenheit degree of temperature. |
| 48 | class Units_ShiftedToken : public Units_Token |
| 49 | { |
| 50 | |
| 51 | public: |
| 52 | |
| 53 | |
| 54 | //! Creates and returns a shifted token. <aword> is a |
| 55 | //! string containing the available word, <amean> gives |
| 56 | //! the signification of the token, <avalue> is the |
| 57 | //! numeric value of the dimension, <amove> is the gap, |
| 58 | //! and <adimensions> is the dimension of the given word |
| 59 | //! <aword>. |
| 60 | Standard_EXPORT Units_ShiftedToken(const Standard_CString aword, const Standard_CString amean, const Standard_Real avalue, const Standard_Real amove, const Handle(Units_Dimensions)& adimensions); |
| 61 | |
| 62 | //! Creates and returns a token, which is a ShiftedToken. |
| 63 | Standard_EXPORT virtual Handle(Units_Token) Creates() const Standard_OVERRIDE; |
| 64 | |
| 65 | //! Returns the gap <themove> |
| 66 | Standard_EXPORT Standard_Real Move() const; |
| 67 | |
| 68 | //! This virtual method is called by the Measurement |
| 69 | //! methods, to compute the measurement during a |
| 70 | //! conversion. |
| 71 | Standard_EXPORT virtual Standard_Real Multiplied (const Standard_Real avalue) const Standard_OVERRIDE; |
| 72 | |
| 73 | //! This virtual method is called by the Measurement |
| 74 | //! methods, to compute the measurement during a |
| 75 | //! conversion. |
| 76 | Standard_EXPORT virtual Standard_Real Divided (const Standard_Real avalue) const Standard_OVERRIDE; |
| 77 | |
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78 | Standard_EXPORT virtual void Dump (const Standard_Integer ashift, const Standard_Integer alevel) const Standard_OVERRIDE; |
| 79 | |
| 80 | |
| 81 | |
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82 | DEFINE_STANDARD_RTTIEXT(Units_ShiftedToken,Units_Token) |
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83 | |
| 84 | protected: |
| 85 | |
| 86 | |
| 87 | |
| 88 | |
| 89 | private: |
| 90 | |
| 91 | |
| 92 | Standard_Real themove; |
| 93 | |
| 94 | |
| 95 | }; |
| 96 | |
| 97 | |
| 98 | |
| 99 | |
| 100 | |
| 101 | |
| 102 | |
| 103 | #endif // _Units_ShiftedToken_HeaderFile |
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