diff options
Diffstat (limited to 'dive.h')
| -rw-r--r-- | dive.h | 20 |
1 files changed, 18 insertions, 2 deletions
@@ -125,21 +125,31 @@ static inline double mm_to_feet(int mm) return mm * 0.00328084; } +static inline unsigned long feet_to_mm(double feet) +{ + return feet * 304.8 + 0.5; +} + static inline int to_feet(depth_t depth) { return mm_to_feet(depth.mm) + 0.5; } -static double mkelvin_to_C(int mkelvin) +static inline double mkelvin_to_C(int mkelvin) { return (mkelvin - 273150) / 1000.0; } -static double mkelvin_to_F(int mkelvin) +static inline double mkelvin_to_F(int mkelvin) { return mkelvin * 9 / 5000.0 - 459.670; } +static inline unsigned long F_to_mkelvin(double f) +{ + return (f-32) * 1000 / 1.8 + 273150.5; +} + static inline int to_C(temperature_t temp) { if (!temp.mkelvin) @@ -165,6 +175,12 @@ static inline double psi_to_bar(double psi) { return psi / 14.5037738; } + +static inline unsigned long psi_to_mbar(double psi) +{ + return psi_to_bar(psi)*1000 + 0.5; +} + static inline int to_PSI(pressure_t pressure) { return pressure.mbar * 0.0145037738 + 0.5; |