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AP_Math: add KELVIN_TO_C define

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Peter Barker 2022-01-12 19:12:56 +11:00 committed by Peter Barker
parent dfea221a49
commit e988bf9046
1 changed files with 3 additions and 1 deletions
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4
libraries/AP_Math/definitions.h
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@ -72,7 +72,9 @@ static const double WGS84_B = (WGS84_A * (1 - WGS84_F));
static const double WGS84_E = (sqrt(2 * WGS84_F - WGS84_F * WGS84_F));
#endif
#define C_TO_KELVIN 273.15f
#define C_TO_KELVIN(temp) (temp + 273.15f)
#define KELVIN_TO_C(temp) (temp - 273.15f)
#define F_TO_KELVIN(temp) C_TO_KELVIN(((temp - 32) * 5/9))
#define M_PER_SEC_TO_KNOTS 1.94384449f
#define KNOTS_TO_M_PER_SEC (1/M_PER_SEC_TO_KNOTS)