[GRASS-user] ascii to dem

[antonio rodriguez]

Hamish escribió:
> antonio rodriguez wrote:
>   
>> I have imported into GRASS an ascii file (bathymetry) like this:
>>
>> r.in.ascii in=/home/toni/tmp/38n34n9w2w/baty2.xyz out=bati
>>
>> north:   38
>> south:   34
>> east:    -2
>> west:    -9
>> rows:    241
>> cols:    421
>> -9                  38      -137
>> -8.98333        38      -127
>> -8.96667        38      -119
>> -8.95               38      -112
>> -8.93333        38      -101
>> -8.91667        38      -81
>> -8.9                38      -63
>> -8.88333        38      -45
>> -8.86667        38      1
>> -8.85               38      8
>>
>> How do I transform it into a 'typical' dem map. It's to say a 
>> continous-aspect dem map not a dotted-aspect one?
>>     
>
>
> That looks like x,y,z data, not a 2D ASCII array. r.in.ascii wants a 2D
> array of z values, x,y are calculated from header. (see the example in
> the help page)
>
>
> Use r.in.xyz to import your data after crafting g.region settings by hand.
>   
Hi Hamish,

I understand the issue of using r.in.xyz but I'm having problems with 
the import:

r.in.xyz z=3 fs='space' input=baty2.xyz out=baty

Scanning data ...
ERROR:Not enough data columns. Incorrect delimiter or column number? Found
      the following character(s) in row 1:
      [north: 38]

If I erase the header of baty2.xyz (the first six lines above):

r.in.xyz z=3 fs='space' input=baty2.xyz out=baty

Scanning data ...
ERROR:Not enough data columns. Incorrect delimiter or column number? Found
      the following character(s) in row 1:
      [-9 38 -137]

Don't know what I'm doing wrong since the 1st column holds the x's 
(longitude) values, the 2nd column, lat values, and 3rd column the z 
values (elevation +/-) The column delimiter is 'space'

Thanks,

Antonio
>
> Hamish
>
>