[Qgis-developer] interpolation

[Marco Hugentobler]

Hi Paolo

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?

Regards,
Marco

Am Samstag, 3. Oktober 2009 12.34:03 schrieb Paolo Cavallini:
> Hi all.
> I tested the interpolation plugin against the equivalent gdal tool (grid).
> The results are comparable (which is good; obviously the C++ plugin is way
> faster), but the two resulting rasters are slightly different: the C++
> result seems shifted slightly to NW, while the gdal seems more centered on
> the actual points. maye computation is done on the NE corner instead of the
> center of the grid? I can provide the two resulting tiffs and a sample
> point shp if it helps. All the best.


-- 
Dr. Marco Hugentobler
HUGIS - GIS programming and consulting
Honrainweg 5
CH-8038 Zürich
marco at hugis.net
http://homepage.hispeed.ch/hugis/