Hi Milton,
Thank you for answering,
I corrently use r.watershed to obtain my flow direction matrix
(drainage). I'm searching for a module in which I can put this
'drainage' in input, and a raster (or vector) with the river network in
input, to obtain in output a matrix in wich in each cell there is the
distance from the river, calculated on the basis of the path defined in
'drainage'.
Thank you
m.
Milton Cezar Ribeiro wrote:
Hi Margherita,
give a look at
r.watershed
r.terraflow
r.flow
Good luck,
milton
2009/7/10 Margherita Di Leo <[email protected]
<mailto:[email protected]>>
Hi Jachym,
Thank you very much for your answer.
I think I was not very clear in explaining my problem. I have to
calculate distance from a line, but the distance has to be
calculated *following a path*, defined by a matrix of direction,
as a 'flow direction' in hydrology. It would be a very useful
hydrological tool.
Cheers
m.
Jachym Cepicky wrote:
Hi,
would [1] help ?
[1]
http://grass.osgeo.org/grass64/manuals/html64_user/r.grow.distance.html
Jachym
On Thu, Jul 09, 2009 at 03:29:40PM +0200, Margherita Di Leo wrote:
Hi List!
I was wondering if there is a way to obtain a (raster) map
of distances from a point or a line, in which the path is
defined by a map (i.e. a flow direction).
It would be very useful for me!
Thank you in advance.
Cheers
m.
--
Eng. Margherita Di Leo
Ph.D. Student
Methods and Technologies for Environmental Monitoring
Department of Environmental Engineering and Physics (DIFA)
University of Basilicata
Campus Macchia Romana
85100 - Potenza
Italy
Office: +39-0971205363
Fax: +39-0971205160
E-mail: dileomargherita AT gmail DOT com
Skype: dileomargherita
URL: http://www.difa.unibas.it/A_Manager_PP.do?azione=visualizzaHomePage&id=106
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