[mapserver-users] .img raster color expression

[John Morgan]

Hola JC,
I have discovered that your suggest did work. Thanks. However, it wasn't
obvious because my data wasn't showing until I zoomed in far enough into
the map.  The front-end application, which is a FLEX viewer, wasn't showing
the colored raster pixels until zoom level 4-5 click of zooming in on the
map.  I don't know if this is something I can fix at the .map level.  The
projection currently defined for this layer is:

        PROJECTION
              "proj=aea"
              "lat_1=29.5"
              "lat_2=45.5"
              "lat_0=23"
              "lon_0=-96"
              "x_0=0"
              "y_0=0"
              "ellps=GRS80"
              "datum=NAD83"
              "units=m"
              "no_defs"
        END

Cheers,
Derek

On Fri, Jan 20, 2012 at 1:01 PM, Fuchs Juan Carlos <jfuch at indec.mecon.gov.ar
> wrote:

> Hi Derek
>
> Try with this for each class you want (just change the expression value and
> the color. Be carefull with upper/lower case ;)
>
> CLASSITEM 'FORESTYPE '
>  CLASS #attribute name, without # gives the label name for the reference
>        EXPRESSION > 0
>        COLOR 214 252 252
>        OUTLINECOLOR 0 0 0
>  END
>
> Cheers
> JC
> -----Mensaje original-----
> De: jdmorgan [mailto:jdmorgan at unca.edu]
> Enviado el: viernes, 20 de enero de 2012 01:49 p.m.
> Para: mapserver-users at lists.osgeo.org
> Asunto: [mapserver-users] .img raster color expression
>
>
> Hello,
> I originally posted this is dev, but I think it might be more inline with
> the user forum.
> I am working with a .img raster file.  It has It has attribute called
> FORESTYPE as I can see it when I open it in a desktop GIS.  I would like
> to key off of this value to define specific colors in a .map file.
> However, I cannot seem to get this working.  Here is what I have:
>
> CLASS
>     NAME "test"
>     EXPRESSION ([FORESTYPE]>  0)
>     STYLE
>         COLOR     255 255 255
>     END
> END
>
> Any help would be greatly appreciated.
>
> Thanks,
>
> --
> Derek @ NEMAC
>
>
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