Hi,
I would go with the TIN if your points are far apart. That will not create the
bumps that you see. IDW is good but you may have to change the IDW
weights from 2 (1\2, the typical gravity model) to 3 or 4 to smooth thing
out. Be careful and make sure you original values don't shift too
icolas Cadieux <nicolas.cadi...@archeotec.ca>
To: qgis-user@lists.osgeo.org
Sent: Monday, October 19, 2015 4:19 PM
Subject: Re: [Qgis-user] Removing artifacts in a created DEM
Hi,
I would go with the TIN if your points are far apart. That will not create the
bumps that you see. IDW
Hi Hernan,
I think neither of the methods you used give good results for
interpolating terrain data (or most other interpolations).
I had good results with v.surf.rst (available in the Processing toolbox
in the GRASS section). There are tons of options with the v.surf.rst -
but the defaults
Hello,
I'm working with a bundle of N-S and E-W distributed DGPS point transects
on gentle glacier slope. With these points I created a shp file and then I
obtained several DEMs (.tif files) using the tool Raster/Analysis/Grid
(Interpolation).
I've used Nearest Neighbor, Runing Means and Inverse
