[GRASS-dev] [GRASS GIS] #2820: r.surf.idw gives broken results - Don't match v.surf.idw

[GRASS GIS]

#2820: r.surf.idw gives broken results - Don't match v.surf.idw
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 Reporter:  lrntct  |      Owner:  grass-dev@…
     Type:  defect  |     Status:  new
 Priority:  major   |  Milestone:  7.0.3
Component:  Raster  |    Version:  7.0.1
 Keywords:          |        CPU:  x86-64
 Platform:  Linux   |
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 I've encountered some strange problem with r.surf.idw while trying to
 interpolate rainfall data.
 That is the procedure:
 - import raster points with r.in.xyz
 - convert to integer with r.mapcalc, multiplying value by 10^6
 - run r.surf.idw
 - convert back to float with r.mapcalc
 - convert original raster points to vector using r.to.vect
 - run v.surf.idw
 - set same color table to both rasters

 Images of the results are attached

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Ticket URL: <https://trac.osgeo.org/grass/ticket/2820>
GRASS GIS <https://grass.osgeo.org>