[mapserver-users] gradient display of raster DEM data

[John Callahan]

Thanks for all your responses.  I have COLORRANGE / DATARANGE working fine
in my map file. Works very well.  I'm also looking at using gdaldem for a
more custom color scale.  Thanks again.

- John

***********************************************
John Callahan, Research Scientist
Delaware Geological Survey, University of Delaware
URL: http://www.dgs.udel.edu
*************************************************



On Fri, Oct 14, 2011 at 5:49 PM, Smith, Michael ERDC-CRREL-NH <
Michael.Smith at usace.army.mil> wrote:

>  John
>
>  The DATARANGE / COLORRANGE keywords will be fully documented by 6.2 but
> they have been present in MapServer for years (since 4.6 or so).
>
>  We used DATARANGE / COLORRANGE for dem display in this years FOSS4G WMS
> Benchmarking effort.
>
>  Mike
>
>   --
> Michael Smith
>  US Army Corps
> Remote Sensing GIS/Center
>
>   From: John Callahan <john.callahan at udel.edu>
> Date: Fri, 14 Oct 2011 16:55:59 -0400
>
> To: <mapserver-users at lists.osgeo.org>
> Subject: [mapserver-users] gradient display of raster DEM data
>
>  I know this has been asked before but I thought I'd ask to see if anything
> changed.
>
>  I'm looking to display a raster digital elevation model in mapserver.  My
> data is in flat files, img and tiff.  I'd like to display this data as a
> continuous gradient color range, rather than using CLASS categories/bins for
> specific colors.  Is it still tru ethat this is not possible, easily?
>
>  One method (passed to me on this list) was too generate the colored image
> I want in another program, using GMT or similar tool, then use that in
> mapserver.  This seems like the best option but is non-trivial to someone
> who hasn't done this before.  (though not terribly difficult.)
>
>  I also read about the use of DATARANGE and COLORRANGE in mapserver.
>  However, these are not in the documentation.  Are these available in trunk
> only?  A ticket was generated that seems to say this will be included with
> MS 6.2.  (http://trac.osgeo.org/mapserver/ticket/1305)  Any insight on
> whether this is still the plan?
>
>
>  Thanks for your help and advice.
>
> - John
>
>  ***********************************************
> John Callahan, Research Scientist
> Delaware Geological Survey, University of Delaware
> URL: http://www.dgs.udel.edu
> *************************************************
>
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>
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