NAME
r.demdma2ll.sh - Import USGS 1:250,000 DEM
files (DMA formatted) into a lat-lon region
(GRASS Shell Script)
SYNOPSIS
r.demdma2ll.sh input=dem_file output=raster_name
DESCRIPTION
r.demdma2ll.sh
is a UNIX Bourne shell to ease importing of DMA-formatted USGS
1:250,000-scale Digital Elevation Models (DEM) data into a
raster map in a lat-lon database. r.demdma2ll.sh extracts the boundary
coordinates from the DEM file automatically.
OPTIONS
Parameters:
- input=dem_file
- The name of the DMA-formatted DEM file to be imported.
- output=raster_name
- The name of the resulting raster map. The new raster map is created
in the currently selected mapset and database.
NOTES
Little error checking is performed. A temporary file is created and
deleted during import. If $TMPDIR is set, the temporary file will
be created in the directory specified. Otherwise, the temporary file is
created in /tmp.
Environment variables GISBASE , GISDBASE ,
LOCATION_NAME and MAPSET are used to specify the GRASS
database, location, and mapset.
Standard UNIX programs dd , sed and awk
are assumed.
FILES
DMA-formatted DEM data files can be obtained from:
http://edcwww.cr.usgs.gov/doc/edchome/ndcdb/ndcdb.html
http://edcftp.cr.usgs.gov/pub/data/DEM/250/
ftp://edcftp.cr.usgs.gov/pub/data/DEM/250/
SEE ALSO
m.dmaUSGSread
m.rot90
m.in.bin
AUTHOR
Tom Poindexter, March, 1999
tpoindex@nyx.net