John Miller writes:
{deleted stuff describing a DEM file format}
What is the best way to import this data into a GRASS
mapset? Is my only option to convert the data to a
format suitable for r.in.ascii?
Katarina writes:
You can import the data as sites, using s.in.ascii, and then convert it
to raster, using one of the options in s.menu. That's how I did it when
I imported DEM data for an area in British Columbia.
Thank you for spending the time to reply to my request. I tried
your suggestion.
s.in.ascii worked fine as far as I can tell (once I worked out
that I had to make my Latitude values negative for the Southern
Hemisphere). A line in the file looks like:
146.005|-19.5|313
However, (isn't there always an however 
I can't get s.menu
to work in the way I require. I choose option 6 "Convert site
list to raster file (0/1)" and choose one cell per site. The
resulting raster file seems to only have zero values for the
elevations.
've tried editing the site_lists file to include a #
character before the "description" field as suggested in the
manual, so that the line in the file shown above looks like:
146.005|19.5|#313
This didn't seem to work either.
I checked the current region was correct with g.region.
Any clues? Is there a problem concerning expressing the LAT/
LONG values in degrees and thousandths of degrees ?
+---------------------------------------------------------------------+
| John Miller | Internet Mail - ccjwm@jcu.edu.au |
| Computer Centre | PSI Mail - PSI%050527372000051::J_MILLER |
| James Cook University of North Queensland | Phone: +61 77 815447 |
| Townsville, 4811, AUSTRALIA | Fax: +61 77 796371 |
+---------------------------------------------------------------------+