[GRASS-user] Flow Direction Map Question (r.stream.extract)

2010-08-18 Thread stephen sefick
I am trying to use a direction map from taudem with the r.stream modules. I think the problem may be that -8 to 8 is the range of value in the r.stream extract version and 1-8 in the taudem version. I can generate one with r.stream extract with the flow accumulation and the filled DEM from

Re: [GRASS-user] Flow Direction Map Question (r.stream.extract)

2010-08-18 Thread Jarek Jasiewicz
stephen sefick pisze: I am trying to use a direction map from taudem with the r.stream modules. I think the problem may be that -8 to 8 is the range of value in the r.stream extract version and 1-8 in the taudem version. I can generate one with r.stream extract with the flow accumulation and

Re: [GRASS-user] Flow Direction Map Question (r.stream.extract)

2010-08-18 Thread stephen sefick
The stream network that is extracted is slightly different between the two pieces of software, but they look close enough... Thank you all for your help. Stephen On Wed, Aug 18, 2010 at 1:08 PM, Jarek Jasiewicz jar...@amu.edu.pl wrote: stephen sefick pisze: I am trying to use a direction

Re: [GRASS-user] Flow Direction Map Question (r.stream.extract)

2010-08-18 Thread Hamish
stephen sefick pisze: I am trying to use a direction map from taudem with the r.stream modules.  I think the problem may be that -8 to 8 is the range of value in the r.stream extract version and 1-8 in the taudem version. I can generate one with r.stream extract with the flow accumulation

Re: [GRASS-user] Flow Direction Map Question (r.stream.extract)

2010-08-18 Thread stephen sefick
Hamish, It is D8. I am not entirely sure what you mean. On Wed, Aug 18, 2010 at 5:38 PM, Hamish hamis...@yahoo.com wrote: stephen sefick pisze: I am trying to use a direction map from taudem with the r.stream modules.  I think the problem may be that -8 to 8 is the range of value in the