[Gvsig_english] Creating density raster/isolines out of point layer

[davk]

Hi and thanks for your help guys,

finally I managed to create a kernel density map. Because of my large layer
I had to choose a bigger cell size. Instead of 1 I chose 40 with a high
search radius and got a beautiful density raster map now!
It seems to me that gvSIG has some problems when it comes to calculations
which your computer can't handle in a short range of time, because in these
cases gvSIG doesn't use all of the PC's performance. This happened for me
for the raster density calculations with too little cell size, and now also
with the vectorization of the raster layer into polygons or contour lines. 

So in my case I will probably just draw polygons on a new vector layer or
simply use the raster map. So thanks a lot for your help! 

greetings davk


Agustin Diez Castillo wrote:
> 
> Davk,
> You can draw the polygons directly from the raster with sextante. If I got
> you right, I
> will proceed like the following:
> 1. reclassify kernel density (instead of contours that you also can draw).
> 2. convert raster to polygons
> Agustin
> 
> 
> 

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