[GRASS-user] Distance map with defined path

Margherita Di Leo diregola at gmail.com
Fri Jul 10 05:07:33 EDT 2009

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.



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 

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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