[Mapserver-users] Adding a GIF layer to my .map file

[Vincent Schut]

Add a world file. It is a simple ascii file, having the same name as the gif 
file but with .wld instead of .gif as extension. Mapserver will automatically 
find the file and use it.
It contains the following lines:
- horizontal (east-west) pixel size
- rotation info, usually ignored, just put 0
- again rotation info, also 0
- vertical pixel size (north-south, so usually negative!)
- x corner coordinate of upper left pixel
- y corner coordinate of upper left pixel

So it just contains 6 lines with each one figure. The numbers should be 
conform the used projection, e.g. is your projection in UTM then use meters, 
is it unprojected latlon then use DD.

Cheers,
Vincent.

BTW make sure your version of mapserver has gif support, because due to patent 
stuff this is normally disabled I think. You can check by running './mapserv 
-v' on the command line (if on linux).



On Tuesday 12 August 2003 16:17, Mario Servin wrote:
> Hi,
>     I followed the MapServer 4.0 Tutorial  for puting a layer with a GIF
> (RASTER type) in my .map file.  Well, nothing happened. The image is not
> shown. Ok, I did not realize that MapServer has no information about
> georeference of the GIF file, but nothing was mentioned about it in the
> Tutorial. Could it be the reason that the image is not shown?. Anyway, how
> can I georeference my GIF file?
>     Regards,
>                 Mario
>
>
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> Mapserver-users@lists.gis.umn.edu
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-- 
______________________________________
Vincent Schut
Sarvision B.V.
Wageningen, The Netherlands
www.sarvision.com
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