This is a beginner's question...
If I have imported 13 layers of roads data (each layer represents a county), can I combine the layers so that there is only 1 layer in my map?
I would like to build polylines for 1 layer and then export that in shapefile format.
Steven Gordon
Hi Steven,
I think you can try with "v.patch"!! the last version support the join
of the tables.. but the tables must have the same columns I think!!!
otherway if you don't care of attributes simply "v.patch" without
joining tables and then "v.build.polylines" and then v.out.ogr...
hope this help
Il giorno mer, 01/02/2006 alle 12.55 -0600, Steven Gordon ha scritto:
This is a beginner's question...
If I have imported 13 layers of roads data (each layer represents a
county), can I combine the layers so that there is only 1 layer in my
map?I would like to build polylines for 1 layer and then export that in
shapefile format.Steven Gordon
--
Ivan Marchesini
Department of Civil and Environmental Engineering
University of Perugia
Via G. Duranti 93/a
06125
Perugia (Italy)
e-mail: marchesini@unipg.it
ivan.marchesini@gmail.com
tel: +39(0)755853760
fax: +39(0)755853756
The simplest way is to add the maps you want to combine to the layer tree
(list of map layers) in the GIS Manager and press the display button.
Michael
______________________________
Michael Barton, Professor of Anthropology
School of Human Evolution and Social Change
Arizona State University
Tempe, AZ 85287-2402
USA
voice: 480-965-6262; fax: 480-965-7671
www: http://www.public.asu.edu/~cmbarton
From: Steven Gordon <sg@cartagram.com>
Date: Wed, 1 Feb 2006 12:55:26 -0600
To: GRASSLIST <GRASSLIST@baylor.edu>
Subject: [GRASSLIST:10118] Combining layersThis is a beginner's question...
If I have imported 13 layers of roads data (each layer represents a
county), can I combine the layers so that there is only 1 layer in my
map?I would like to build polylines for 1 layer and then export that in
shapefile format.Steven Gordon