diff options
Diffstat (limited to 'navit/navigation.h')
| -rw-r--r-- | navit/navigation.h | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/navit/navigation.h b/navit/navigation.h index 28faa015c..0651dbc79 100644 --- a/navit/navigation.h +++ b/navit/navigation.h @@ -22,7 +22,17 @@ #define FEET_PER_METER 3.2808399 #define FEET_PER_MILE 5280 -#define METERS_PER_MILE 1609 +#define KILOMETERS_TO_MILES 0.62137119 /* Kilometers to miles */ + +/* It appears that distances to be displayed, such as distances to + * maneuvers, are in meters. Multiply that by METERS_PER_MILE and you + * have miles. */ +#define METERS_TO_MILES (KILOMETERS_TO_MILES/1000.0) /* Meters to miles */ +/* #define METERS_PER_MILE (1000.0/KILOMETERS_TO_MILES) */ + +/* Meters per second to kilometers per hour. GPSD delivers speeds in + * meters per second. */ +#define MPS_TO_KPH 3.6 #ifdef __cplusplus extern "C" { |