[GRASS-user] r.stream : vetor of horton order

GRASS GRASS user
1

Dear all,

I extracted the drainage and direction from a DEM using r.stream.extract.
r.stream.extract --o elevation=aster_dem_wgs84_UTM threshold=50
stream_vect=aster_dem_wgs84_UTM_vect_th00050
stream_rast=aster_dem_wgs84_UTM_rast_th00050
direction=aster_dem_wgs84_UTM_rast_th00050_direction

How can I obtain a vector of Horton order?!

cheers

milton

2

Take a look at http://grass.osgeo.org/wiki/GRASS_AddOns, on r.stream.*
collection.

Luís

On Sáb, 2010-06-19 at 15:33 -0300, Milton Cezar Ribeiro wrote:

Dear all,

I extracted the drainage and direction from a DEM using
r.stream.extract.
r.stream.extract --o elevation=aster_dem_wgs84_UTM threshold=50
   stream_vect=aster_dem_wgs84_UTM_vect_th00050
   stream_rast=aster_dem_wgs84_UTM_rast_th00050
   direction=aster_dem_wgs84_UTM_rast_th00050_direction

How can I obtain a vector of Horton order?!

cheers

milton

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3

Milton Cezar Ribeiro pisze:

Dear all,

I extracted the drainage and direction from a DEM using r.stream.extract.
r.stream.extract --o elevation=aster_dem_wgs84_UTM threshold=50
   stream_vect=aster_dem_wgs84_UTM_vect_th00050
   stream_rast=aster_dem_wgs84_UTM_rast_th00050
   direction=aster_dem_wgs84_UTM_rast_th00050_direction

How can I obtain a vector of Horton order?!

cheers

milton

------------------------------------------------------------------------

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r.stream.order will create table with attributes, also with horton order. The table can be joined (v.db.join) to vector network of r.stream.extract.
Jarek