[mapserver-users] tiff problem,

Ed McNierney ed at topozone.com
Thu Jan 31 08:33:01 PST 2002


Pushkar -

You should be able to run GeoTIFFs just fine with MapServer w/o GDAL
support if it was built with TIFF support.  Run "mapserv -v" and check
to see that "INPUT=TIFF" is listed.  However, it looked like (from your
previous email) that you are using a 24-bit RGB TIFF image.  That is NOT
supported w/o GDAL - using GDAL in MapServer 3.5 will give you 24-bit
TIFF support.  However, you might want to really consider pre-processing
your images down to 8 bits BEFORE they're used by MapServer.

	- Ed

Ed McNierney
Chief Mapmaker
TopoZone.com
ed at topozone.com
(978) 251-4242


-----Original Message-----
From: David Graham [mailto:dgraham at i3.com]
Sent: Thursday, January 31, 2002 11:07 AM
To: Pushkar Pradhan
Cc: mapserver-users at lists.gis.umn.edu
Subject: Re: [mapserver-users] tiff problem,


Pushkar Pradhan wrote:

>
>I've tried giving absolute paths in the DATA field but it gives me
Internal
>Server Error.
>The TIFs are GEOTIFFS,
>Do I need to have projection support enabled to display GEOTIFFs, sorry
I
>am not experienced in GIS field. Thanks,
>
Good Question.  I am not sure.  Here we compiled it to run with the GDAL

library (www.remotesensing.org) and have been using that to read both 
GEOTIFF and regular TIFF's with ESRI world files.  I have not tried to 
use it with the straight tifflib.

My guess is that you do not have geotiff capablility. I am not sure how 
Mapserver without GDAL deals with this.  It might require an ESRI world 
file.   See if you can find a tool that will export the geotiff tags to 
an ESRI world file with the same name and a .tfw extension.  Then place 
the world file in the same directory as the Tiff imagery.  Or ask 
someone more knowlegable than me.

Any help out there?

Dave Graham






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