what is the correct geodetic format GRASS can import. I am trying to
import the following text file:
cat long lat loc
1 5:46:01E 49:48:33N PERLE
..
------------snip-------------------------------
with the following COMMAND:
> tail +2 georef_man.txt | v.in.ascii fs='\t' out=precip x=2 y=3 cat=1 \
columns='cat int, x double, y double, label varchar(20)'
I get the following ERROR message:
Maximum input row length: 40
Maximum number of columns: 4
Minimum number of columns: 4
ERROR: x column is not of number type
Apparently, the geographical coordinates are in the wrong format and
the column specification is probably also wrong (columns= x double,
...).
Which format do I have to use for degrees, minutes and seconds? And
how can I specify that in the columns option? (x long, y lat ??)
v.in.ascii will not (currently) read ddd:mm:ss format coordinates. It
should be using the G_scan_easting() and G_scan_northing() library
functions to convert these into floating point numbers but this hasn't
been done yet. So you need to convert 5:46:01E into +5.000212963 and
import that way. It is seeing the d:m:s input as a text string when it
wants a number.
ps: "fs=tab" works and you might want to use "skip=1" to avoid having to
use `tail +2` and save the header line to the map's history file.
Alternatively you can #comment out the header line to skip it.
columns='cat int, x double, y double, label varchar(20)'
I get the following ERROR message:
Maximum input row length: 40
Maximum number of columns: 4
Minimum number of columns: 4
ERROR: x column is not of number type
Apparently, the geographical coordinates are in the wrong format and
the column specification is probably also wrong (columns= x double,
...).
Which format do I have to use for degrees, minutes and seconds? And
how can I specify that in the columns option? (x long, y lat ??)
v.in.ascii will not (currently) read ddd:mm:ss format coordinates. It
should be using the G_scan_easting() and G_scan_northing() library
functions to convert these into floating point numbers but this hasn't
been done yet.
Are you sure, Hamish? I thought that I had implemented that (GRASS 6.1-CVS)
>v.in.ascii will not (currently) read ddd:mm:ss format coordinates. It
>should be using the G_scan_easting() and G_scan_northing() library
>functions to convert these into floating point numbers but this
>hasn't been done yet.
>
Are you sure, Hamish? I thought that I had implemented that (GRASS
6.1-CVS)
