comparison: src/misc.h
src/misc.h
- changeset 500
- cad8cdc42a64
- parent 498
- 791c831c8020
- child 501
- 8f314f3f5054
equal
deleted
inserted
replaced
| 499:ebd30d9eb667 | 500:cad8cdc42a64 |
|---|---|
| 38 str ftoa (double num); | 38 str ftoa (double num); |
| 39 | 39 |
| 40 double atof (str val); | 40 double atof (str val); |
| 41 | 41 |
| 42 // Simplifies the given fraction. | 42 // Simplifies the given fraction. |
| 43 void simplify (short& numer, short& denom); | 43 void simplify (int& numer, int& denom); |
| 44 | 44 |
| 45 str join (initlist<StringFormatArg> vals, str delim = " "); | 45 str join (initlist<StringFormatArg> vals, str delim = " "); |
| 46 | 46 |
| 47 // Grid stuff | 47 // Grid stuff |
| 48 struct gridinfo | 48 struct gridinfo |
| 49 { const char* const name; | 49 { const char* const name; |
| 50 FloatConfig* const confs[4]; | 50 FloatConfig* const confs[4]; |
| 51 }; | 51 }; |
| 52 | 52 |
| 53 extern_cfg (Int, grid); | 53 extern_cfg (Int, grid); |
| 54 static const short g_NumGrids = 3; | 54 static const int g_NumGrids = 3; |
| 55 extern const gridinfo g_GridInfo[3]; | 55 extern const gridinfo g_GridInfo[3]; |
| 56 | 56 |
| 57 inline const gridinfo& currentGrid() | 57 inline const gridinfo& currentGrid() |
| 58 { return g_GridInfo[grid]; | 58 { return g_GridInfo[grid]; |
| 59 } | 59 } |
| 85 | 85 |
| 86 double snap (double value, const Grid::Config axis); | 86 double snap (double value, const Grid::Config axis); |
| 87 } | 87 } |
| 88 | 88 |
| 89 // ============================================================================= | 89 // ============================================================================= |
| 90 // RingFinder | |
| 91 // | |
| 92 // Provides an algorithm for finding a solution of rings between radii r0 and r1. | |
| 93 // ============================================================================= | |
| 94 class RingFinder | |
| 95 { public: | |
| 96 struct SolutionComponent | |
| 97 { int num; | |
| 98 double scale; | |
| 99 }; | |
| 100 | |
| 101 typedef List<SolutionComponent> SolutionType; | |
| 102 | |
| 103 RingFinder() {} | |
| 104 bool findRings (double r0, double r1); | |
| 105 | |
| 106 inline const SolutionType& solution() | |
| 107 { return m_solution; | |
| 108 } | |
| 109 | |
| 110 inline bool operator() (double r0, double r1) | |
| 111 { return findRings (r0, r1); | |
| 112 } | |
| 113 | |
| 114 private: | |
| 115 SolutionType m_solution; | |
| 116 }; | |
| 117 | |
| 118 extern RingFinder g_RingFinder; | |
| 119 | |
| 120 // ============================================================================= | |
| 90 template<class T> void dataswap (T& a, T& b) | 121 template<class T> void dataswap (T& a, T& b) |
| 91 { T c = a; | 122 { T c = a; |
| 92 a = b; | 123 a = b; |
| 93 b = c; | 124 b = c; |
| 94 } | 125 } |
| 118 // Templated absolute value | 149 // Templated absolute value |
| 119 template<class T> static inline T abs (T a) | 150 template<class T> static inline T abs (T a) |
| 120 { return (a >= 0) ? a : -a; | 151 { return (a >= 0) ? a : -a; |
| 121 } | 152 } |
| 122 | 153 |
| 154 template<class T> inline bool isZero (T a) | |
| 155 { return abs<T> (a) < 0.0001; | |
| 156 } | |
| 157 | |
| 158 template<class T> inline bool isInteger (T a) | |
| 159 { return isZero (a - (int) a); | |
| 160 } | |
| 161 | |
| 123 #endif // MISC_H | 162 #endif // MISC_H |
