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authorLorenz Meier <lm@inf.ethz.ch>2013-06-04 13:25:42 +0200
committerLorenz Meier <lm@inf.ethz.ch>2013-06-04 13:25:42 +0200
commitde8186e050d51297a2878676b87bb6d1f8b6f24f (patch)
treed1d1e50b37bdf21fc629b0f6bc711ce61ebbd84e /src/modules/systemlib/geo/geo.h
parentabb024c724435937c1a0ae707dccfa28a48ef559 (diff)
parente3ee6689fe8fe4e6d6c77767d340f7e732ded85e (diff)
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Merge branch 'master' of github.com:PX4/Firmware into failsafe_io
Diffstat (limited to 'src/modules/systemlib/geo/geo.h')
-rw-r--r--src/modules/systemlib/geo/geo.h16
1 files changed, 16 insertions, 0 deletions
diff --git a/src/modules/systemlib/geo/geo.h b/src/modules/systemlib/geo/geo.h
index 0c0b5c533..84097b49f 100644
--- a/src/modules/systemlib/geo/geo.h
+++ b/src/modules/systemlib/geo/geo.h
@@ -82,8 +82,24 @@ __EXPORT void map_projection_project(double lat, double lon, float *x, float *y)
*/
__EXPORT void map_projection_reproject(float x, float y, double *lat, double *lon);
+/**
+ * Returns the distance to the next waypoint in meters.
+ *
+ * @param lat_now current position in degrees (47.1234567°, not 471234567°)
+ * @param lon_now current position in degrees (8.1234567°, not 81234567°)
+ * @param lat_next next waypoint position in degrees (47.1234567°, not 471234567°)
+ * @param lon_next next waypoint position in degrees (8.1234567°, not 81234567°)
+ */
__EXPORT float get_distance_to_next_waypoint(double lat_now, double lon_now, double lat_next, double lon_next);
+/**
+ * Returns the bearing to the next waypoint in radians.
+ *
+ * @param lat_now current position in degrees (47.1234567°, not 471234567°)
+ * @param lon_now current position in degrees (8.1234567°, not 81234567°)
+ * @param lat_next next waypoint position in degrees (47.1234567°, not 471234567°)
+ * @param lon_next next waypoint position in degrees (8.1234567°, not 81234567°)
+ */
__EXPORT float get_bearing_to_next_waypoint(double lat_now, double lon_now, double lat_next, double lon_next);
__EXPORT int get_distance_to_line(struct crosstrack_error_s * crosstrack_error, double lat_now, double lon_now, double lat_start, double lon_start, double lat_end, double lon_end);