<html><head><style type="text/css"><!-- DIV {margin:0px;} --></style></head><body><div style="font-family:verdana,helvetica,sans-serif;font-size:10pt"><div>Hi Martin,<br><br>I tried the command that Micha suggested v.db.addcol map=Contour_points_cats@PERMANENT layer=1<br>columns="rast_value double precision" but this age the following error<br><br>v.db.addcol Contour_points_cats col=rast_value DOUBLE PRECISION<br>Sorry <DOUBLE> is not a valid option<br>Sorry <PRECISION> is not a valid option<br><br>So through the GUI I added a column to the attribute table which gave the command line out put <br>v.db.addcol map=Contour_points_cats@PERMANENT layer=1 {columns=rast_value double precision}<br><br>cheers!<br></div><div style="font-family: verdana,helvetica,sans-serif; font-size: 10pt;"><br><div style="font-family: arial,helvetica,sans-serif; font-size: 13px;"><font face="Tahoma" size="2"><hr size="1"><b><span style="font-weight:
bold;">From:</span></b> Martin Landa <landa.martin@gmail.com><br><b><span style="font-weight: bold;">To:</span></b> Rebecca Bennett <rabennett@ymail.com><br><b><span style="font-weight: bold;">Cc:</span></b> Micha Silver <micha@arava.co.il>; grass-user@lists.osgeo.org<br><b><span style="font-weight: bold;">Sent:</span></b> Wed, 9 June, 2010 9:37:14<br><b><span style="font-weight: bold;">Subject:</span></b> Re: [GRASS-user] Re: Problems with v.what.rast<br></font><br>Hi,<br><br>2010/6/9 Rebecca Bennett <<a ymailto="mailto:rabennett@ymail.com" href="mailto:rabennett@ymail.com">rabennett@ymail.com</a>>:<br>> I added a column v.db.addcol map=Contour_points_cats@PERMANENT layer=1<br>> {columns=rast_value double precision} (as my raster is a float), then ran<br>> with error<br><br>how did you get this command?<br><br>It should be<br><br>v.db.addcol map=Contour_points_cats@PERMANENT layer=1<br>columns="rast_value double
precision"<br><br>Martin<br><br>-- <br>Martin Landa <landa.martin gmail.com> * <a href="http://gama.fsv.cvut.cz/%7Elanda" target="_blank">http://gama.fsv.cvut.cz/~landa</a><br></div></div>
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