[mapserver-users] GDAL input formats

Wed Jan 5 16:46:49 EST 2011

My question now relates to output.

===========================
David V. Hildebrand
Agriculture Financial Services Corporation
(403) 782-8239   

www.afsc.ca <http://www.afsc.ca>
This communication is intended for the use of the recipient to which it is addressed, and may contain confidential, personal and/or privileged information. Please contact Agriculture Financial Services Corporation immediately if you are not the intended recipient of this communication, and do not copy, distribute, or take action relying on it. Any communication received in error, or subsequent reply, should be deleted or destroyed. Please consider the environment before printing this email.

-----Original Message-----
From: Alexander Petkov [mailto:greenkov at gmail.com] 
Sent: Wednesday, January 05, 2011 2:07 PM
To: David Hildebrand
Cc: Rahkonen Jukka; mapserver-users at lists.osgeo.org
Subject: Re: [mapserver-users] GDAL input formats

Hi David:

If gdal can read your rasters (gdalinfo will work for a quick and easy
test),  mapserver will too.

Alex

On Wed, Jan 5, 2011 at 1:46 PM, David Hildebrand
<David.Hildebrand at afsc.ca> wrote:
> Thanks, Jukka.  The second part of my question relates to floating point
> images.  I don't think that MapServer can handle 3-band floating point
> images because I can't seem to find anything in the documentation and I
> have tried a couple of things that don't work.  I suppose the best thing
> would be to convert them to 3-band, 8-bit images.
>
>
> ===========================
> David V. Hildebrand
> Agriculture Financial Services Corporation
> (403) 782-8239
>
> www.afsc.ca <http://www.afsc.ca>
> This communication is intended for the use of the recipient to which it
> is addressed, and may contain confidential, personal and/or privileged
> information. Please contact Agriculture Financial Services Corporation
> immediately if you are not the intended recipient of this communication,
> and do not copy, distribute, or take action relying on it. Any
> communication received in error, or subsequent reply, should be deleted
> or destroyed. Please consider the environment before printing this
> email.
>
>
> -----Original Message-----
> From: Rahkonen Jukka [mailto:Jukka.Rahkonen at mmmtike.fi]
> Sent: Wednesday, January 05, 2011 10:07 AM
> To: David Hildebrand
> Cc: mapserver-users at lists.osgeo.org
> Subject: Re: [mapserver-users] GDAL input formats
>
> Hi,
>
> Have you already read the ENVI part of the following document?
> http://gdal.org/frmt_various.html#ENVI
>
> -Jukka Rahkonen-
>
>
> David Hildebrand wrote:
>
>> Frank:
>
>> As you are probably aware, ENVI image files are associated with a
> header
> file which has a "hdr" extension.  The extension of the actual image
> file can be anything but the root name of the image file and header file
> must be the same.  If I specify the HDR file on the DATA line of my map
> file there may be more than one file in the same workspace which are
> candidate image files.  If I specify the name of the image file, which
> can have any or no extension, I don't see how the system can figure out
> the format.  Is there a particular extension which is assumed by GDAL
> for the image file?
>
>> Thanks.
>
>
> ===========================
> David V. Hildebrand
> Agriculture Financial Services Corporation
> (403) 782-8239
>
> www.afsc.ca <http://www.afsc.ca>
> This communication is intended for the use of the recipient to which it
> is addressed, and may contain confidential, personal and/or privileged
> information. Please contact Agriculture Financial Services Corporation
> immediately if you are not the intended recipient of this communication,
> and do not copy, distribute, or take action relying on it. Any
> communication received in error, or subsequent reply, should be deleted
> or destroyed. Please consider the environment before printing this
> email.
>
>
> -----Original Message-----
> From: mapserver-users-bounces at lists.osgeo.org
> [mailto:mapserver-users-bounces at lists.osgeo.org] On Behalf Of Frank
> Warmerdam
> Sent: Tuesday, January 04, 2011 5:33 PM
> To: mapserver-users at lists.osgeo.org
> Subject: Re: [mapserver-users] GDAL input formats
>
> On 11-01-04 03:14 PM, David Hildebrand wrote:
>> I'm wondering how to specify a particular GDAL format.  I have some
>> 3-band floating point images in ENVI format and I would like to retain
>> that format because I have GDAL support.  Secondly, would it be better
>> to convert them to GeoTiff files?  Would it also be better to scale
> them
>> to, say 16-bit signed integer files?
>
> David,
>
> I searched back a bit in the archive, but I couldn't find any leadup
> discussion to the above.  It seems to lack context.
>
> So, you have 3band floating point images in ENVI format and you would
> like to retain that format.  Is there something holding you back?
>
> You said you don't know "hjow to specify a particular GDAL format".  Do
> you mean when you are generating output via GDAL such as with WCS?  Or
> do you mean how you tell MapServer what format an input file is in?
> You don't have to tell MapServer (or GDAL) what format a file is in.
> It figures it out - assuming it is a supported format.
>
> Does that help?
>
> 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    | Geospatial Programmer for Rent
>
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