On Nov 21, 2011, at 8:09 AM, Mark Volz wrote:

> John,
> 
> I was able to get datarange and classrange to work.  However I found a couple 
> issues:
> 
> 1) I had to include an expression for the raster range.  - This may have been 
> fixed in newer versions of MS.


At least with ms 6.0.1 I didn't have to use any expression directive. Just 
colorrange and datarange did the trick.


> 2) I was getting unwanted black areas on my map.  - I was using PC256  (to 
> make the image smaller), I had to revert to RGB, which has more colors.  
> Mapserver did not report an error when I was using PC256.
> 
> 
> 
> CLASS
>       EXPRESSION ([pixel] >= 1030 AND [pixel] < 1133)
>       STYLE
>               COLORRANGE 176 240 232 255 255 179
>               DATARANGE 1030 1133
>       END
> END #class
> 
> 
> 
> Mark Volz
> GIS Specialist

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