X-Git-Url: http://pileus.org/git/?p=grits;a=blobdiff_plain;f=src%2Fgis-world.h;h=3a347808e109c3ba50a9c311f6752382c726c753;hp=93c47e33fd2761a66367749091fa9e5f39ade6f5;hb=2e575e2c348f44d3c723ac344b7296492c76f77a;hpb=733833b754f20c98976bca621d87d090621abff3

diff --git a/src/gis-world.h b/src/gis-world.h
index 93c47e3..3a34780 100644
--- a/src/gis-world.h
+++ b/src/gis-world.h
@@ -26,6 +26,10 @@
 
 #define EARTH_R (6371000)
 #define EARTH_C (2*M_PI*EARTH_R)
+#define NORTH  90
+#define SOUTH -90
+#define EAST  180
+#define WEST -180
 
 /**
  * Terms