Simplify distance calculations

This simplifies the distance calculations and removes a dependency.

This version uses propper math instead of my to simple previous version.

Signed-off-by: Anton Lundin <glance@acc.umu.se>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>

1 files changed, 5 insertions, 0 deletions

diff --git a/units.h b/units.h
index 90d7949b0..0baf2ffa5 100644
--- a/units.h
+++ b/units.h
@@ -119,6 +119,11 @@ typedef struct
 	int udeg;
 } degrees_t;
 
+static inline double udeg_to_radians(int udeg)
+{
+	return (udeg * M_PI) / (1000000.0 * 180.0);
+}
+
 static inline double grams_to_lbs(int grams)
 {
 	return grams / 453.6;