From: Paul Ramsey <pramsey@cleverelephant.ca>
Date: Fri, 23 Nov 2012 15:57:14 +0000 (+0000)
Subject: Try to stomp out -180 (#2066)
X-Git-Tag: 2.1.0beta2~364
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=84dae1d5376168fe2e02d04d1db73adb3a823ecc;p=postgis

Try to stomp out -180 (#2066)


git-svn-id: http://svn.osgeo.org/postgis/trunk@10732 b70326c6-7e19-0410-871a-916f4a2858ee
---

diff --git a/liblwgeom/lwgeodetic.c b/liblwgeom/lwgeodetic.c
index c79023991..fc55a66e2 100644
--- a/liblwgeom/lwgeodetic.c
+++ b/liblwgeom/lwgeodetic.c
@@ -42,6 +42,9 @@ double longitude_radians_normalize(double lon)
 
 	if ( lon < -1.0 * M_PI )
 		lon = 2.0 * M_PI + lon;
+		
+	if ( lon == -2.0 * M_PI )
+		lon *= -1.0;
 
 	return lon;
 }
@@ -79,11 +82,6 @@ double latitude_radians_normalize(double lat)
 */
 double longitude_degrees_normalize(double lon)
 {
-	if ( lon == -180.0 )
-		return 180.0;
-	if ( lon == -360.0 )
-		return 0.0;
-
 	if ( lon > 360.0 )
 		lon = remainder(lon, 360.0);
 
@@ -96,6 +94,12 @@ double longitude_degrees_normalize(double lon)
 	if ( lon < -180.0 )
 		lon = 360 + lon;
 
+	if ( lon == -180.0 )
+		return 180.0;
+
+	if ( lon == -360.0 )
+		return 0.0;
+
 	return lon;
 }