[Qgis-user] Heatmap plugin returns an empty raster with NAN values

[Augusto Sisa]

..:: Additional information ::..

I tried to use too the plugin "GRASS tools", and the option "Gaussian
kernel density", with my own data and it works almost perfect except for a
little gap between some categories.

Thanks in advance.



On Tue, Jul 1, 2014 at 11:02 AM, Augusto Sisa <augusto.sisa at gmail.com>
wrote:

>
> Hello:
>
> I'm trying to create some density maps using the Arun's heatmap plugin, in
> QGIS 2.2 Valmiera on Ubuntu 14.04.
>
> When I use a large sample data from a tutorial everything works fine.
> (Tutorial
> http://www.digital-geography.com/create-point-density-raster-in-qgis/#.U7LZznVdUbw
> ) .  So I think that I have everything correctly installed. But, when I use
> my own data (from 100 to 1000 points) I just get an empty raster with "nan"
> values in it.
>
> I tried to use a geographic coordinate system and a projected coordinate
> system. I tried too to use small and large radius, but I just get the same
> empty raster.
>
> Thanks for your help. Any help will be appreciated.
>
> --
> Augusto Sisa Camargo
> Colombia.
>



-- 
Augusto Sisa Camargo
Colombia.
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