X-Git-Url: https://git.mxchange.org/?a=blobdiff_plain;f=simgear%2Fbucket%2Fnewbucket.hxx;h=56333c4d670e4b985529fa289be32fec6fe77a2b;hb=66c9187c95fb6861d9737f135fdf68d1bfa265f3;hp=58008e5c06ec21735b3dc3ec045df8709e2e9ab7;hpb=c1762c709e10e3e51de13bbade9da7869e13871d;p=simgear.git

diff --git a/simgear/bucket/newbucket.hxx b/simgear/bucket/newbucket.hxx
index 58008e5c..56333c4d 100644
--- a/simgear/bucket/newbucket.hxx
+++ b/simgear/bucket/newbucket.hxx
@@ -24,6 +24,11 @@
 
 /** \file newbucket.hxx
  * A class and associated utiltity functions to manage world scenery tiling.
+ *
+ * Tile borders are aligned along circles of latitude and longitude.
+ * All tiles are 1/8 degree of latitude high and their width in degrees
+ * longitude depends on their latitude, adjusted in such a way that
+ * all tiles cover about the same amount of area of the earth surface.
  */
 
 #ifndef _NEWBUCKET_HXX
@@ -211,9 +216,9 @@ public:
 	double span = sg_bucket_span( lat + y / 8.0 + SG_HALF_BUCKET_SPAN );
 
 	if ( span >= 1.0 ) {
-	    return lon + span / 2.0;
+	    return lon + get_width() / 2.0;
 	} else {
-	    return lon + x * span + span / 2.0;
+	    return lon + x * span + get_width() / 2.0;
 	}
     }