<div dir="ltr"><div><div><div><div><div><div>Hi Markus<br><br></div>Thank you for this excellent addon.<br><br></div>I was testing it with some trmm data, and getting this error with default "thin" value of 1.5.<br><br><span style="font-family:monospace,monospace">ERROR: knn: inserting duplicate<br><br></span></div><span style="font-family:monospace,monospace"><font face="arial,helvetica,sans-serif">Then if I increase the thinning factor, it works, but the algorithm thinned out quite a lot of points.<br><br></font></span></div><span style="font-family:monospace,monospace"><font face="arial,helvetica,sans-serif">Any lead would be helpful, thanks<br></font></span></div><div><span style="font-family:monospace,monospace"><font face="arial,helvetica,sans-serif"><br></font></span></div><span style="font-family:monospace,monospace"><font face="arial,helvetica,sans-serif">Regards<br><br></font></span></div><span style="font-family:monospace,monospace"><font face="arial,helvetica,sans-serif">Sajid<br></font></span><div><div><div><div><span style="font-family:monospace,monospace"><font face="arial,helvetica,sans-serif"><br><br></font></span><div><div><br></div></div></div></div></div></div></div><div class="gmail_extra"><br><div class="gmail_quote">On Thu, Aug 25, 2016 at 9:02 PM, Markus Metz <span dir="ltr"><<a href="mailto:markus.metz.giswork@gmail.com" target="_blank">markus.metz.giswork@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">The new addon v.surf.tps performs multivariate thin plate spline<br>
interpolation of sparse points with smoothing. If you ever wondered<br>
why worldclim data (<a href="http://worldclim.org" rel="noreferrer" target="_blank">http://worldclim.org</a>) follow so nicely elevation,<br>
the reason is multivariate thin plate spline interpolation of<br>
meteorological station data with elevation as a covariate. The module<br>
can also be used for gap filling of remote sensing data, e.g. MODIS<br>
LST reconstruction of cloud-covered areas, after fine-tuning the<br>
module's parameters. The module works only with GRASS 7.2+.<br>
<br>
Markus M<br>
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