Convert from xyz to lle as the main roam coordinates

[grits] / src / gis-util.h

diff --git a/src/gis-util.h b/src/gis-util.h
index a9f288a35b85f2554813355d6abfdeb770d65737..c7e1f69c497a4881a4696d040f980e79a84f713e 100644 (file)
--- a/src/gis-util.h
+++ b/src/gis-util.h
@@ -91,4 +91,6 @@ gdouble ll2m(gdouble lon_dist, gdouble lat);
 
 gdouble distd(gdouble *a, gdouble *b);
 
+gdouble lon_avg(gdouble a, gdouble b);
+
 #endif