[mapserver-users] About the Color Ramp for Raster Data

Yves Jacolin (Free) yjacolin at free.fr
Wed Jun 26 03:05:48 PDT 2013


Le mercredi 26 juin 2013 11:03:10 Guo YU a écrit :
> Does this proposed new syntax work yet?
> http://mapserver.org/development/rfc/ms-rfc-6.html#proposed-new-syntax
> 
> Currently, I am still using this method for rendering the color. However it
> doesn't work so well since it is linear interpolation and equal interval.
> In reality, the histogram of raster shows that data doesn't distribute with
> equal interval. In ArcGIS, the default method for classified raster
> rendering is Natural Breaks (Jenks).
> 
> 
> STYLE
>   COLORRANGE 0 0 0  255 255 0 # black to yellow
>   DATARANGE 0.0 100.0
>   RANGEITEM "foobar"
> END
> 
> Is there any new improvement for that in MapServer? Thanks
Hello,

It is working well as we are using it. Even if it could be improved (add 
legend support for instance) :)

Anyway, you can use EXPRESSION parameter for each CLASS you need to do what 
you want.

Regards,

Y.


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