raster doubt

[soares]

hi all

i have a question a hope someone could answer, sorry if it´s newby!!!!

i see we can define class and expressions in mapfiles in order to classify
the value of a raster pixel and the color of the pixels.
------------------------------------------------------
CLASS 
    NAME "dark-grey"
    EXPRESSION ([pixel] > 48 and [pixel] <= 126)
    STYLE
      COLOR 64 64 64
    END
  END
"for pixels with values >48 <126 it output a dark grey color, right?"
-------------------------------------------------------------
 My question is if we can classify the pixel values not with one color but
with a color ramp, having a gradient look, just like is done in ArcMap.

other question, what are exactly this pixels values, [pixel]????

any explain is usefull, tkx
-- 
View this message in context: http://www.nabble.com/raster-doubt-tf1947332.html#a5339709
Sent from the Mapserver - User forum at Nabble.com.