From 78a7ccbe4b67a07cb7774d1be446cf2e9d5de26f Mon Sep 17 00:00:00 2001
From: antoniocarlon <antoniocarlon@gmail.com>
Date: Wed, 9 May 2018 13:40:26 +0200
Subject: [PATCH] Fix y coordinate

---
 src/pg/sql/45_observatory_mvt.sql | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/pg/sql/45_observatory_mvt.sql b/src/pg/sql/45_observatory_mvt.sql
index 9ba25fe..a81cca7 100644
--- a/src/pg/sql/45_observatory_mvt.sql
+++ b/src/pg/sql/45_observatory_mvt.sql
@@ -12,7 +12,7 @@ def tile2lnglat(z, x, y):
     return lon, lat
 
 lon0, lat0 = tile2lnglat(z, x, y)
-lon1, lat1 = tile2lnglat(z, x+1, y+1)
+lon1, lat1 = tile2lnglat(z, x+1, y-1)
 
 return [lon0, lat0, lon1, lat1]
 $$ LANGUAGE plpythonu;