[GRASSLIST:8047] V.digit (GRASS): Layer disapears, using QGIS as front end
Dave Sampson
gis at watersheds.ca
Wed Aug 24 09:17:52 EDT 2005
Hey GRASS/QGIS folks.
I have a base vector layer for a lake that I wish to digitize over.
When I use v.digit and create a new layer, my display blanks, hiding the
lake layer. The VIEW does not change extents as I can display the new
dumby vector over the old one after I SAVE AND EXIT. However its hard to
line up a land feature to the shoreline without seeing the shoreline
while digitizing.
My work around is to make a dumby vector in GRASSA and then digitize in
QGIS. Which brings up a second issue. If I delete the dumby vector in
QGIS before making a new one, the vector file becomes currupt for both
QGIS and GRASS. So you start with one dumby vector in GRASS, create a
new less obtrusive dumby vector in QGIS and delete the old dumby GRASS
vector before you start digitizing. To say the least, a few extra steps
that would be nice to avoid. This would be a major drawback to using
GRASS/QGIS in a production digitizing scenario.
How do I use GRASS to digitize a new layer over an existing one. Do I
need to provide more info to this list?
Vitals.
-----------
GRASS 6.1 CVS
QGIS 0.7 pre2
Gentoo linux 2.6 kernel
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|Dave Sampson: Geographic Information System (GIS) Technician |
| |
|Centre for Sustainable Watersheds |
|Cooperative Approaches to Protect Canada's Water Resources |
| |
|14 Water St, P.O Box 280. Portland Ontario, Canada. K0G 1V0 |
|Lat: 44.700 Long: -76.19 |
|www.watersheds.ca gis at watersheds.ca |
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