Re: [Geotools-gt2-users] Building a coverage from an array of doubles/floats?

[Ian T. <ijt...@gm...>]

On Tue, Dec 21, 2010 at 12:56 PM, Andrea Aime
<and...@ge...> wrote:
> On Tue, Dec 21, 2010 at 4:29 PM, Ian Turton <ijt...@gm...> wrote:
>>
>>
>> That's the sort of thing I was trying, is there a way to do this with
>> world x,y coords instead of image coords?
>
> I think that is normally called interpolation :-)
> Look for Inverse Distance Weighted, tensioned splines, or Kriging
> (I don't think we have an implementation of any, IDW is trivial to
>  implement though, at least a low performance version of it):
> http://en.wikipedia.org/wiki/Inverse_distance_weighting

I'm doing my own kernel estimation to convert my circles to a raster
representation but I've been working in world coords (as that seemed
easier) and was looking for a setDataValue(double x, double y, double
value) method that would save me from having to worry about which way
the Y axis ran and where the edges where for the raster etc. But it
seems not to be there?

Ian