[GRASSLIST:1062] Re: v.clean doesn't create dbf
hamish_nospam at yahoo.com
Thu May 11 05:34:16 EDT 2006
> I had these maps in old GRASS format, so I converted them. Now I have
> two vector maps, one for contours and one for drainage. I want to
> calculate a new DEM from the intersections of contours and drainage.
> So I did, first v.patch, to put all in one file, then v.clean, to get
> the intrsections. Now I want to sample the raster altitude at the
v.patch can't propigate the table if the input vector's tables aren't
an exact match. Hopefully it keeps the lines' cat numbers though?
use "v.clean tool=break error=intersections" to get the intersection
points as their own map(??), then v.db.addtable or db.execute to create
a new table including a 'column="alt double"' column. (or add the column
later with v.db.addcol). Then you can use v.what.rast to fill in the
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