[mapserver-users] using gdalinfo.exe

[Ken S. Elvehjem]

Frank,

Thank you for the response.  Is there some other way to get some of  the 
"gdal  info" with a simple query?  I'm not stuck on using gdalinfo... it 
just seemed like a good idea.

What I need is the UTM Zone -- that's already specified (I guess) in the 
EPSG statement in the mapfile.  Can it be extracted from there over the web 
by way of a URL / query?

Ken


----- Original Message ----- 
From: "Frank Warmerdam" <warmerdam at pobox.com>
To: "Ken S. Elvehjem" <elvehjem at runestone.net>
Cc: <mapserver-users at lists.osgeo.org>
Sent: Tuesday, April 08, 2008 9:25 PM
Subject: Re: [mapserver-users] using gdalinfo.exe


> Ken S. Elvehjem wrote:
>>  Hi,
>>  I'm currently generating a query from my software to access a MrSid file 
>> that I have on my MapServer; here's the link:
>> 
>> http://206.183.188.202/cgi-bin/mapserv.exe?map=c:\ms4w\Apache\htdocs\SD\mccook-wms.map&SERVICE=WMS&VERSION=1.1.1&REQUEST=GetMap&LAYERS=NAIP2006&STYLES=&SRS=EPSG:4269&BBOX=611300,4815500,613300,4817500&WIDTH=800&HEIGHT=800&FORMAT=image/jpeg 
>> <http://206.183.188.202/cgi-bin/mapserv.exe?map=c:\ms4w\Apache\htdocs\SD\mccook-wms.map&SERVICE=WMS&VERSION=1.1.1&REQUEST=GetMap&LAYERS=NAIP2006&STYLES=&SRS=EPSG:4269&BBOX=611300,4815500,613300,4817500&WIDTH=800&HEIGHT=800&FORMAT=image/jpeg>
>>  I'd like to be able to generate a URL that will get me the "gdalinfo" on 
>> that file...  Here's what doesn't work:
>> 
>> http://206.183.188.202/cgi-bin/gdalinfo.exe?c:\ms4w\Apache\htdocs\SD\mccook\mccook2006.sid
>>  Could someone point out A.) if I'm barking up the wrong tree 
>> completetely, and if not, B.) what does that kind of query/URL need to 
>> look like?
>
> Ken,
>
> I'm not aware of anyone doing anything quite like this.  gdalinfo isn't
> setup to be used as a cgi, and doesn't return things html encoded or
> with a content-type header.  And MapServer does not have an equivelent
> functionality.
>
> But, in theory, you could write a little gdalinfo script in 
> php/perl/python
> that would execute gdalinfo on a passed argument filename and then return
> the result with a proper "Content-type: text/plain" header.
>
> Best regards,
> -- 
> ---------------------------------------+--------------------------------------
> I set the clouds in motion - turn up   | Frank Warmerdam, 
> warmerdam at pobox.com
> light and sound - activate the windows | http://pobox.com/~warmerdam
> and watch the world go round - Rush    | President OSGeo, http://osgeo.org
>