raster not showing

[Ethan Alpert]

Unfortunately MS gives you plenty of rope to hang yourself. When things
don't show up it is usually a misconfiguration in the mapfile. If you
get the mapfile syntax wrong you'll get an error but if you get
something like PROJECTION,UNITS, etc wrong you  get nothing. 

The first step in debugging why a raster doesn't show up is to make sure
you know what it's projection is and make sure your map file represents
it.

The Raster Data how-to actually has some nuggets in it:
http://mapserver.gis.umn.edu/doc42/raster-howto.html

Finally mapserver will do this a lot and it's always because you've done
something wrong so you need to get to the point where you can check each
of your layers independently. 

When this happens to me I try to display each layer separately to make
sure that part works then put them into a single map file. You can use
the mapserver CGI in mode=map map to quickly and easily load mapfiles
with different layers and see if they work or don't. The key is to come
up with ways you can diagnose your problem. Just keep in mind that it is
very rarely an actual bug (especially if you're just getting started)

-e

-----Original Message-----
From: UMN MapServer Users List [mailto:MAPSERVER-USERS at LISTS.UMN.EDU] On
Behalf Of didier.georgieff
Sent: Tuesday, December 07, 2004 9:46 AM
To: MAPSERVER-USERS at LISTS.UMN.EDU
Subject: [UMN_MAPSERVER-USERS] raster not showing


Hello,

I'm trying to setup a mapserver demo (4.4.0), based on itasca model, and
spent the whole day on something that puzzle me ;-)

- itasca works fine including raster files.

- my demo works fine except that raster files doesn't show up (single
image or tile), but i got no error message.

Something starnge also is that if i change the



--
didier.georgieff <didier.georgieff at agriculture.gouv.fr>
DIDSIT du Bas-Rhin