hla: for rti13 queue all callbacks.

[simgear.git] / simgear / bucket / newbucket.hxx

diff --git a/simgear/bucket/newbucket.hxx b/simgear/bucket/newbucket.hxx
index 6e9bdd24329c5cd3247c45f98e2969ec207231ee..56333c4d670e4b985529fa289be32fec6fe77a2b 100644 (file)
--- 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
@@ -95,7 +100,6 @@ static double sg_bucket_span( double l ) {
 class SGBucket {
 
 private:
-    double cx, cy;  // centerpoint (lon, lat) in degrees of bucket
     short lon;        // longitude index (-180 to 179)
     short lat;        // latitude index (-90 to 89)
     char x;          // x subdivision (0 to 7)
@@ -212,9 +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;
        }
     }
 
@@ -330,7 +334,7 @@ void sgBucketDiff( const SGBucket& b1, const SGBucket& b2, int *dx, int *dy );
 inline std::ostream&
 operator<< ( std::ostream& out, const SGBucket& b )
 {
-    return out << b.lon << ":" << b.x << ", " << b.lat << ":" << b.y;
+    return out << b.lon << ":" << (int)b.x << ", " << b.lat << ":" << (int)b.y;
 }