John,
I got a larger color range by using multiple classes
LAYER
NAME "hillshade"
TYPE raster
TILEINDEX "/benchmarking/wms/2011/data/raster/DEM/bil_16int/dem_bil16int.shp"
PROCESSING "CLOSE_CONNECTION=DEFER"
PROJECTION
"+init=epsg:4326"
END
CLASS
STYLE
COLORRANGE 46 154 88 251 255 128
DATARANGE 1003 1800
END
END
CLASS
STYLE
COLORRANGE 251 255 128 224 108 31
DATARANGE 1800 2800
END
END
CLASS
STYLE
COLORRANGE 224 108 31 200 55 55
DATARANGE 2800 3500
END
END
CLASS
STYLE
COLORRANGE 200 55 55 215 244 244
DATARANGE 3500 4397
END
END
END
From: John Callahan <[email protected]<mailto:[email protected]>>
Date: Mon, 17 Oct 2011 14:54:13 -0400
To: "[email protected]<mailto:[email protected]>"
<[email protected]<mailto:[email protected]>>
Subject: Re: [mapserver-users] gradient display of raster DEM data
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
<[email protected]<mailto:[email protected]>> 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 <[email protected]<mailto:[email protected]>>
Date: Fri, 14 Oct 2011 16:55:59 -0400
To: <[email protected]<mailto:[email protected]>>
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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