[GRASS-user] r.in.xyz

[Edmondo Elisei]

1) My r.in.xyz command line:

r.in.xyz input=/grassdata/archivio_vettoriale/_subset_points.txt
output=subset method=mean type=FCELL fs=, x=1 y=2 z=3 percent=100

2) g.region -p result:

projection: 1 (UTM)
zone:       33
datum:      eur50
ellipsoid:  international
north:      4478400.26
south:      4477190.36
west:       654486.51
east:       655494.12
nsres:      0.99991736
ewres:      0.9996131
rows:       1210
cols:       1008
cells:      1219680

3) the r.in.xyz procedure ends with message:

"r.in.xyz complete. 1184 points found in region"

4) r.univar results:

total null and non-null cells: 1219680
total null cells: 1218504

Of the non-null cells:
----------------------
n: 1176
minimum: 6.35
maximum: 16.4
range: 10.05
mean: 11.0863
standard deviation: 2.68923
variance: 7.23197
variation coefficient: 24.2572 %
sum: 13037.5350046158

5) r.bilinear syntax
r.bilinear input=subset output=subsetsurface --overwrite




2008/3/18, Hamish <hamish_b a yahoo.com>:
>
> Edmondo Elisei wrote:
> > I've a trouble in importing xyz points file.
> > The "r.in.xyz" command seems working well;
>
> what did your exact r.in.xyz and g.region command lines look like?
> does it display ok?
> what does r.univar say about the result?
> what does 'g.region -p' say?
>
> > then I tried to make a surface with "r.bilinear" but
> > the resulting map has no elevation (r.what returns
> > 232196.623264|4686029.38993||)
>
> exact command line used for r.bilinear?
>
>
> > Below an abstract from my input file
>
> >
> >    232196.623264|4686029.38993|10.0000|
> >    237080.972225|4686560.03525|50.0000|
> >    236453.845939|4684943.97905|11.0000|
> >    233969.461035|4684208.31167|13.0000|
> >    233487.0562|4685559.04521|43.0000|
> >    234198.603332|4686596.21561|23.5000|
> >    235368.435059|4686198.23162|37.8900|
> >    233655.897892|4685559.04521|19.0000|
> >    234367.445025|4686752.99718|27.0000|
> >    236441.785818|4685583.16545|17.0000|
> >    235464.916026|4683484.70442|28.0000|
> >    237141.27283|4684328.91288|31.0000|
> >    233957.400914|4684256.55216|17.5000|
> >    234693.068289|4685028.39989|11.0000|
> >    235766.419048|4685908.78872|31.0000|
> >    236164.403038|4686560.03525|20.0000|
>
>
> how many input points in all?
>
> I don't think it matters but the last | is not needed if no other column
> follows it.
>
> > I hope my English has been enough clear.
>
> fine.
>
>
>
> Hamish
>
>
>
>
>
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