[mapserver-users] Polygons wrapping when projected into spherical mercator

[Stephen Woodbridge]

Hi all,

I'm having one of those brain dead moments. I've run into this in the 
past but can't for the life of me figure out how I fixed then.

I have a polygons layer of the world countries in epsg:4326 and it 
displays fine until I project it into spherical mercator them the 
polygons that touch the date line get wrapper all wonky.

You can see the problem here:
http://imaptools.com:8080/demo/leaddog-tiles.html

shpdump data/world/world_Dissolve | head
Shapefile Type: Polygon   # of Shapes: 275

File Bounds: (    -180.000,     -90.000,0,0)
          to  (     180.000,      83.633,0,0)

This works fine on my old Debian Lenny box but seems to have heart burn 
when I upgraded the system.

How do I fix this?

Thanks,
   -Steve W

Ubuntu 12.04

uname -a
Linux mappy 3.8.0-33-generic #48~precise1-Ubuntu SMP Thu Oct 24 16:28:06 
UTC 2013 x86_64 x86_64 x86_64 GNU/Linux

mapserv -v
MapServer version 6.2.1 OUTPUT=GIF OUTPUT=PNG OUTPUT=JPEG SUPPORTS=PROJ 
SUPPORTS=GD SUPPORTS=AGG SUPPORTS=FREETYPE SUPPORTS=CAIRO 
SUPPORTS=SVG_SYMBOLS SUPPORTS=ICONV SUPPORTS=FRIBIDI SUPPORTS=WMS_SERVER 
SUPPORTS=WMS_CLIENT SUPPORTS=WFS_SERVER SUPPORTS=WFS_CLIENT 
SUPPORTS=WCS_SERVER SUPPORTS=SOS_SERVER SUPPORTS=FASTCGI 
SUPPORTS=THREADS SUPPORTS=GEOS INPUT=JPEG INPUT=POSTGIS INPUT=OGR 
INPUT=GDAL INPUT=SHAPEFILE

libproj-dev/precise uptodate 4.8.0-3~precise2
libproj0/precise uptodate 4.8.0-3~precise2

libapache2-mod-mapcache/precise uptodate 1.0.0-3~precise2
libmapcache/precise uptodate 1.0.0-3~precise2
mapcache-tools/precise uptodate 1.0.0-3~precise2

cgi-mapserver/precise uptodate 6.2.1-2~precise3
libmapserver/precise uptodate 6.2.1-2~precise3
mapserver-bin/precise uptodate 6.2.1-2~precise3