I have to use some data from ARC/INFO. Before I go ahead I would like to know what is the "best" (less problematic!) format to import raster data from Arc into GRASS.
Would the Arc/Info export format be ok?
Thanks in advance.^Angela
I wrote a GRASS script (you can only run it in GRASS environment)
to do the job. But it does NOT take care of attributes etc.
Also, you have to export a GRID as an ASCII file first.
Jianping Xu jianp@ocean.rutgers.edu
-------- cut here ------------
#!/bin/sh
####################################################
# gridascii2r.sh (GRASS shell script)
#
# Syntax: gridascii2r.sh grid_ascii raster_out
#
# Jianping Xu, Rutgers University
# 12/11/93
####################################################
if [ $# != 2 ]
then
echo
echo "Usage: gridascii2r.sh grid_ascii raster_out"
exit 1
fi
IN=$1
OUT=$2
### build header for the GRASS ascii-raster file from the header of grid file
head -6 $IN | awk '{print $1"=" $2}' > /tmp/$$
. /tmp/$$
rm -f /tmp/$$
north=`echo "scale=2;${yllcorner} + ${cellsize} * ${nrows}" | bc`
south=$yllcorner
east=`echo "scale=2;${xllcorner} + ${cellsize} * ${ncols}" | bc`
west=$xllcorner
rows=$nrows
cols=$ncols
echo "north: $north" > /tmp/$$
echo "south: $south" >> /tmp/$$
echo "east: $east" >> /tmp/$$
echo "west: $west" >> /tmp/$$
echo "rows: $rows" >> /tmp/$$
echo "cols: $cols" >> /tmp/$$
### append input data values to the GRASS raster-ascii file, NODATA becomes 0
tail +7 $IN | sed -e "s/$NODATA_value/0/g" >> /tmp/$$
### convert the ascii file to a standard GRASS raster map
r.in.ascii /tmp/$$ output=$OUT
### finish all
rm -f /tmp/$$