[Qgis-developer] interpolation

[Marco Hugentobler]

Hi Paolo

Which algorithms did you use? Afaik, the inverse distance weighting is the 
only method that is common to interpolation plugin and GDAL. And there it is 
important that you set the same distance weighting coefficient for both.

Regards,
Marco

Am Mittwoch, 7. Oktober 2009 13.17:37 schrieb Paolo Cavallini:
> Marco Hugentobler ha scritto:
> > I think you are right. The interpolation plugin calculated the values in
> > the top left corner instead of the center of the raster cells. r11759 is
> > supposed to fix this. Could you test if it works now?
>
> Much more similar now. Still not identical though, but I guess this may be
> due to rounding or other. If you want I can send you the two resulting
> rasters and the sample data.
> All the best, and many thanks!

-- 
Dr. Marco Hugentobler
HUGIS - GIS programming and consulting
Webereistrasse 66
CH-8134 Adliswil
marco at hugis.net
http://homepage.hispeed.ch/hugis