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added some comments 

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/trunk@929704 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Grant Ingersoll 2010-03-31 20:02:29 +00:00
parent 7cc8b1b484
commit 61d2ad1eb3
1 changed files with 3 additions and 0 deletions
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3
lucene/contrib/spatial/src/java/org/apache/lucene/spatial/tier/CartesianPolyFilterBuilder.java
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@ -72,6 +72,9 @@ public class CartesianPolyFilterBuilder {
double longY = ur.getLng();
double longX = ll.getLng();
double longX2 = 0.0;
//These two if checks setup us up to deal with issues around the prime meridian and the 180th meridian
//In these two cases, we need to get tiles (tiers) from the lower left up to the meridian and then
//from the meridan to the upper right
//Are we crossing the 180 deg. longitude, if so, we need to do some special things
if (ur.getLng() < 0.0 && ll.getLng() > 0.0) {
longX2 = ll.getLng();