Hi all,<br>I need to extract some contour lines from a vector map (imported with v.in.dwg -z). While I can do this on the base of their category, it would be easier to directly select the desired elevations, but I don't know how to refer to them. With
d.what.vect I obtain the following textual output:<br><br>GRASS 6.1.cvs (Valledaosta):/media/sda7/zodoardo/cartografia > d.what.vect -x ma p=dwg0351<br>Building spatial index ...<br> 100%<br><br>Buttons<br> Left: what's here
<br> Right: quit<br><br>405718.49528848(E) 5051089.77547112(N)<br><br>dwg0351 in zodoardo Line<br>length 4098.283965<br>Line height: 560.000000<br>Layer: 1<br>category: 15833<br>driver: dbf<br>database: //media/sda7/zodoardo/cartografia/grassdb/Valledaosta/zodoardo/dbf/
<br>table: dwg0351<br>key column: cat<br>cat : 15833<br>entity_nam : POLYLINE<br>color : 256<br>weight : -1<br>layer : 12L04<br>block :<br>txt :<br>Done.<br><br>The problem is that "Line height" doesn't appear in the dbf table.
<br>What can I do?<br><br>Thanks.<br><br>Odoardo<br><br>-----------------------<br>Odoardo Zecca<br>Institut Agricole Régional<br>Aosta (It)<br><br>