Re: [GRASS-user] Re: Building topologically correct stream network

2009-07-23 Thread Margherita Di Leo
Dylan Beaudette wrote: On Tuesday 21 July 2009, Jarek Jasiewicz wrote: BTW I'm about to finish regular grass modue for calculating Strahler Stream order and Shreeve Stream Magnitude. I hope I publish it for testing in next few days. Any help appreciated. I would be happy to help test!

[GRASS-user] Re: Building topologically correct stream network

2009-07-21 Thread Margherita Di Leo
Hi Stephen, I actually am fighting against almost the same problem, so let's do it together :) I found that r.strahler.sh works well to delineate streams and correct topology, (I use a treshold of 1km^2, it works well but don't ask me why :) ), but (in my little experience) does not work to

Re: [GRASS-user] Re: Building topologically correct stream network

2009-07-21 Thread Jarek Jasiewicz
Hi maybe this will help: http://gis.vsb.cz/GIS_Ostrava/GIS_Ova_2009/sbornik/Lists/Papers/060.pdf it require another gis program but gives great results! Jarek Margherita Di Leo pisze: Hi Stephen, I actually am fighting against almost the same problem, so let's do it together :) I found

Re: [GRASS-user] Re: Building topologically correct stream network

2009-07-21 Thread Markus Metz
Hi Jarek Jarek Jasiewicz wrote: Hi maybe this will help: http://gis.vsb.cz/GIS_Ostrava/GIS_Ova_2009/sbornik/Lists/Papers/060.pdf What were the limitations of the GRASS raster-to-vector conversion tools you encountered? It's not clear to me from Fig. 3, but I would like to understand the

Re: [GRASS-user] Re: Building topologically correct stream network

2009-07-21 Thread Jarek Jasiewicz
Markus Metz pisze: Hi Jarek Jarek Jasiewicz wrote: Hi maybe this will help: http://gis.vsb.cz/GIS_Ostrava/GIS_Ova_2009/sbornik/Lists/Papers/060.pdf What were the limitations of the GRASS raster-to-vector conversion tools you encountered? that problems are shown on fig 4) 1) streams

Re: [GRASS-user] Re: Building topologically correct stream network

2009-07-21 Thread Jarek Jasiewicz
Jarek Jasiewicz pisze: Markus Metz pisze: Hi Jarek Jarek Jasiewicz wrote: Hi maybe this will help: http://gis.vsb.cz/GIS_Ostrava/GIS_Ova_2009/sbornik/Lists/Papers/060.pdf What were the limitations of the GRASS raster-to-vector conversion tools you encountered? that problems are

Re: [GRASS-user] Re: Building topologically correct stream network

2009-07-21 Thread Dylan Beaudette
On Tuesday 21 July 2009, Jarek Jasiewicz wrote: BTW I'm about to finish regular grass modue for calculating Strahler Stream order and Shreeve Stream Magnitude. I hope I publish it for testing in next few days. Any help appreciated. I would be happy to help test! Cheers, Dylan -- Dylan

Re: [GRASS-user] Re: Building topologically correct stream network

2009-07-21 Thread stephen sefick
I just don't know how. Tell me what to do - I am new to grass, and I am a intermediate in compiling software. Also, I am running mac os x if that makes a difference, and I can also test on a debian ppc linux laptop. thanks Stephen Sefick On Tue, Jul 21, 2009 at 2:32 PM, Dylan