I'm translating things on QGIS and now looking at GDAL tool rasterizing
point data set with moving average interpolation.
That's making a call to gdal_grid with -a average.
I've got the attached result from a point set (circles with red border
and inside inverse grayscale with interpolated value). The call was
gdal_grid -l INPUT -zfield suuntap -a
-ot Float32 -of GTiff INPUT.shp OUTPUT.tif
I'm wondering is that the expected since it looks like the raster cell
value is determined by point locations. I would have expected a much
more smooth surface without any obvious circular shapes. To me it looks
like the computation was not done cell by cell but instead point by point.
What am I missing or misunderstanding?
ps: This tool is in group 'Raster analysis'. In my opinion it should be
in a group 'Point data tools' or something.
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