[ka-Map-users] raster layer querying

[Lorenzo Becchi]

Deepthi, that's feasable. look at mapserver documentation how to do it:
http://mapserver.gis.umn.edu/docs/howto/raster_data

this are the values you can ask for:
x: 	georeferenced X location of pixel.
y: 	georeferenced Y location of pixel.
value_list: 	a comma separated list of the values of all selected bands 
at the target pixel.
value_n: 	the value for the n'th band in the selected list at this pixel 
(zero based). There is one value_n entry for each selected band.
class: 	Name of the class this pixel is a member of (classified layers 
only).
red: 	red component of the display color for this pixel.
green: 	green component of the display color for this pixel.
blue: 	blue component of the display color for this pixel.




ciao
Lorenzo


Deepthi Venugopal wrote:
>
>
> Is it possible to query raster layer.if possible,how?
> Hope somebody can help me.
>
>
> regards
> Deepthi
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