[mapserver-users] Mapserver serving up DEM

[Matt Fair]

Here are two files it generated, one with auto scale and one without auto
scale.
Matt


On Thu, Sep 16, 2010 at 12:04 PM, Matt Fair <matt.fair at gmail.com> wrote:

> Frank,
> Would this be the jpeg or png image generated via the WMS query or a tiff
> file generated on the server?
> Matt
>
>
> On Thu, Sep 16, 2010 at 11:41 AM, Frank Warmerdam <warmerdam at pobox.com>wrote:
>
>> Matt Fair wrote:
>>
>>>  OUTPUTFORMAT
>>>    NAME "GEOTIFFINT16"
>>>    DRIVER "GDAL/GTiff"
>>>    MIMETYPE "image/tiff"
>>>    IMAGEMODE "INT16"
>>>    EXTENSION "tif"
>>>  END
>>>
>> ...
>>
>>  This produces a white image, meaning it is probably only reading 8 bits.
>>>  If I add  PROCESSING "SCALE=AUTO", then the values are not maxed out at
>>> 255, but vary based on the size of data I am requesting.  So this won't work
>>> either because in my mapping software, as I request smaller and smaller
>>> patches, the elevation data is scaled really weird and is not consistent.
>>>
>>> Is there anything I am missing to get 16 bit USGS DEM data to be
>>> distributed via Mapserver?
>>>
>>
>> Matt,
>>
>> Your setup seems reasonable.  Can you provide me an example of an output
>> file produced by MapServer?  I'd like to examine it to ensure it is being
>> produced matching the output format declaration.
>>
>> 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<http://pobox.com/%7Ewarmerdam>
>> and watch the world go round - Rush    | Geospatial Programmer for Rent
>>
>>
>
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