Do the distance matrix tools work on geographic coordinates?
I suspect for GRASS yes, but for QGIS?
stefan
Markus Neteler wrote:
On Fri, Mar 5, 2010 at 7:48 PM, Giovanni Manghi
<giovanni.man...@gmail.com> wrote:
are you looking for a distance matrix tool?
QGIS has one, look into the vector menu -> analysis tools -> distance
matrix
... and respectively for GRASS:
- how to start it:
http://grass.osgeo.org/grass64/manuals/html64_user/helptext.html
- Geonames.org import (into lat-long location):
http://grass.osgeo.org/grass64/manuals/html64_user/v.in.geonames.html
- Distance matrix (use "Print output" there)
http://grass.osgeo.org/grass64/manuals/html64_user/v.distance.html
-> Examples, Print distance matrix
(in lat-long, it calculates them as geodesic distances on a sphere)
cheers
Markus
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