From: torsten <torsten>
Date: Fri, 27 Mar 2009 22:38:54 +0000 (+0000)
Subject: fix wrong bucket calculation for western hemisphere, close to poles, full-degree... 
X-Git-Url: https://git.mxchange.org/?a=commitdiff_plain;h=26b4776394725e82d043740651562682771a27bf;p=simgear.git

fix wrong bucket calculation for western hemisphere, close to poles, full-degree-longitude calculations.
set_bucket computed false left border, if the span was greater than 1, longitudes were less than zero
and longitudes were within SG_EPSILON on a full degree. Example: -179.0, +87.5 returned -176, 87
but should return -180, 87.
Discovered by Brian Schack
---

diff --git a/simgear/bucket/newbucket.cxx b/simgear/bucket/newbucket.cxx
index 9a4b20eb..11995903 100644
--- a/simgear/bucket/newbucket.cxx
+++ b/simgear/bucket/newbucket.cxx
@@ -106,7 +106,7 @@ void SGBucket::set_bucket( double dlon, double dlat ) {
     } else if ( span <= 1.0 ) {
 	x = (int)((dlon - lon) / span);
     } else {
-	if ( (dlon >= 0) || (fabs(diff) < SG_EPSILON) ) {
+	if ( dlon >= 0 ) {
 	    lon = (int)( (int)(lon / span) * span);
 	} else {
 	    // cout << " lon = " << lon