[GRASS-user] problem with nnbathy

[Roberto Marzocchi]

The problem is related to the following line:

grass.call(['nnbathy',
>
>                     '-W', '%d' % 0,
>
>                     '-i', '%s' % self._tmpxyz,
>
>                     '-x', '%d % self.nn_w, '%d' % self.nn_e,
>
>                     '-y', '%d' % self.nn_n, '%d' % self.nn_s,
>
>                     '-P', '%s' % self.ALG,
>
>                     '-n', '%dx%d' % (self.cols, self.rows)],
>
>                    stdout=fsock)
>
>
east, west, north and south must be real.
I have  updated the SVN repository

R

2018-05-25 10:17 GMT+02:00 lorenzo benvenuto <benvenuto.lorenzo a gmail.com>:

> Dear lists,
>
> I'm working with the commands v.surf.nnbathy, and r.surf.nnbathy; I give
> as input a vector map and a raster map respectively, and differently from
> what I expected, the value of the interpolated raster map is not the same
> on the real points (I mean the points of the input maps).
> It looks like a sort of smoothing effect is applied.
>
> The syntax of the command I've used is:
>
> v.surf.nnbathy input=vector_map_input a maspset1 output=raster_map_output@
> mapset1
> r.surf.nnbathy input=raster_map_input a maspset1 output=raster_map_output a mapset1,
> where raster_map_input a maspset1, comes from the comand
> v.to.rast input=vector_map_input a mapset1 type=point
> output=raster_map_input a mapset1 use=attr attribute_column=T
>
> I'm using Grass 7.4.0 on Ubuntu 16.04 and I've downloaded the last updated
> nnbathy library; I've also treid the same commands on Grass 7.0.3 on
> Lubuntu but I got the same problem.
>
> Lastly I've tried the command r.surf.nnbathy using Grass 6.4.4 and an old
> version of nnbathy library (downloaded on 2016): in this case the value of
> the interpolated raster map is exactly the same on the real points.
>
> Does anyone have the same problem?
>
> Regards,
>
> Lorenzo
>
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