The problem I have v.digit is when the digitizer is set to none. I assumed
that meant I could work on vector files (assign cats, etc.) on the screen.
Was that a bad assumption?PS xdigit works very well.
PPS I am mainly interested in converting a vector file into raster. The
vector file is in Arc ungen format but does not have any labels. As it
currently exists, v.to.rast converts nothing because there is no label file
in dig_att directory. I can go through the ascii vector file from Arc, grab
the values for a point on each of the lines and put it into the dig_att
directory, but I was hoping that somebody had a routine that did this
already. I can't go back to Arc and have the file generated there. Any
tips greatly appreciated!----- End Included Message -----
Hello Gerald,
No, your assumption about choosing 'none means no digitizer' is not bad
, it is exactly right and thats the only thing you can choose in this case and
it is for vector maps and yes you can
assign values to areas/lines.
And for the other problem with converting from arc to grass; in arc, yo
u need to UNGENERATE a "line" file and a "point" file, just give each one a di
fferent .ext, maybe map.lin and map.pnt, then in grass you import using "v.in.a
rc" using "map.lin" for "lines_in" and "map.pnt" for "points_in" and the same "
map.pnt" for "text_in" and for the last three options use "1" for label, which
means using the first colmn in your *.pnt file as an att for your dig_att file.
Then you need to run
"v.support" and finaly "v.to.rast". Now if you want more detailed labels in y
our cats file, then
you need to use "OUTPUT" in arcINFO after you select the needed colmn for your
cat file. See OUTPUT in your INFO manual.
Well, I hope this helps you solve your problem. Good luck!!
Abeer AL-Naji