>John -

>Problem:  my data values range from approx -9000 m to 9000m
>(mariana's trench to everest) for a total of approx 18000 possible
>   values.  If i'm allowed only 256 colors in the .lut file (i'm not sure
>of this, but experimenting w/more colors has failed/crashed ERM)

You can use 2 or more LUTs to achieve your desired result.  I have
done something similar with my TerraColor World image, and I used
one LUT for the land areas, and another for the ocean.  Just split the
image into separate surfaces, then you can use as many different
LUTs as you have surfaces.

Regards,



Eric Augenstein
---------------------------------------------------------------
Earthstar Geographics
5330 Carroll Canyon Road
Suite 200
San Diego, CA 92121-3758 USA
32:53:35N  117:11:38W

E-mail: [EMAIL PROTECTED]
Internet: www.es-geo.com
Tel: +1 858-455-9970
Fax: +1 858-455-9971
---------------------------------------------------------------

-----------------------------------------------------------

To make changes to your subscription, please visit our website, 
http://www.ermapper.com/technicl/ermapperl/index.htm

Reply via email to