[GRASS-dev] Re: [GRASS-user] major update of r.stream.*

Michael Barton michael.barton at asu.edu
Thu Feb 25 13:42:35 EST 2010


On Feb 25, 2010, at 1:57 AM, grass-user-request at lists.osgeo.org wrote:

> Date: Wed, 24 Feb 2010 19:11:32 +0100
> From: Jaros?aw Jasiewicz <jarekj at amu.edu.pl>
> Subject: [GRASS-user] major update of r.stream.*
> To: grass-user at lists.osgeo.org
> Message-ID: <4B856BD4.7050500 at amu.edu.pl>
> Content-Type: text/plain; charset=ISO-8859-2; format=flowed
> 
> Hi list!
> 
> I announce major update of r.stream.*:
> 
> new nodule r.stream.angle: to calculate stream direction and
> inter-stream relation. That module use experimental algorithm to divide
> streams int shorter but near-straight line segments, and next calculate
> its direction (0-360 downstream). It may also divide line into segments
> along ordered lines of the same Strahler, Horton or Main stream order,
> depending on user choice. More in the description.
> 
> I didn't know any GIS software which do such or similar segmentation. If
> someone knows  (open or proprietary) I will be grateful for pointing it.
> 
> major update r.stream.distance: now it can calculate distance to
> streams/junction/outlet downstream (default, it was previously available
> as thje whole module) and new option to calculate distance to the local
> or farthest maximum/divides upstream. See more details in the description.
> 
> regards
> Jarek Jasiewicz

Any plans to move this to the main SVN? It seems like a very good addition to the GRASS tool set.

Michael


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