On Tue, Jan 8, 2013 at 3:03 PM, Chris Haste <cha...@airdata.co.uk> wrote:
> Hi List,****
>
> ** **
>
> I have been trying to use the new heatmap transformation in version 2.2.3
> but I think I must be doing something wrong.****
>
> I wish to display a layer defined using an SQL view. The query simply
> returns a Grid of points and for each point there is a temperature value, I
> am using the round function in the query to round the temperature value to
> the nearest integer.****
>
> ** **
>
> I am using the SLD below, copied from the example and modified to
> (hopefully) work with my data. However, the entire map is produced in one
> colour (#FFFF00) but when I query the map by clicking on it in an
> Openlayers preview it shows correct values for the Temperatures and
> different locations on the map yield different values.****
>
> ** **
>
> Any ideas?
>
Heatmaps are about point density, if you want to interpolation function you
should look at the Barnes surface transformation
instead
Cheers
Andrea
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