I found a similar question here: http://gis.stackexchange.com/questions/22735/how-to-calculate-stream-order-for-vector-data-without-a-dem
On Mon, May 14, 2012 at 2:53 PM, Filipe Silva Dias <[email protected]>wrote: > Hi Johannes > > Yes, its in vector format, but it could be converted to raster if > necessary. > > I installed v.strahler with g.extension, but loading it produced an error. > Is there another one? > > Thanks > > Traceback (most recent call last): > File "C:\OSGeo4W\apps\grass\grass-6.4.2\etc\wxpython\gui_m > odules\prompt.py", line 1105, in OnKeyPressed > > self.parent.RunCmd(cmd) > File "C:\OSGeo4W\apps\grass\grass-6.4.2\etc\wxpython\gui_m > odules\goutput.py", line 523, in RunCmd > > task = menuform.GUI(show = None).ParseCommand(command) > File "C:\OSGeo4W\apps\grass\grass-6.4.2\etc\wxpython\gui_m > odules\menuform.py", line 1732, in ParseCommand > > blackList = _blackList) > File "C:\OSGeo4W\apps\grass\grass-6.4.2\etc\python\grass\s > cript\task.py", line 460, in parse_interface > > tree = etree.fromstring(get_interface_description(name)) > File > "C:\OSGeo4W\apps\Python27\lib\xml\etree\ElementTree.py", > line 1283, in XML > > return parser.close() > File > "C:\OSGeo4W\apps\Python27\lib\xml\etree\ElementTree.py", > line 1636, in close > > self._raiseerror(v) > File > "C:\OSGeo4W\apps\Python27\lib\xml\etree\ElementTree.py", > line 1488, in _raiseerror > > raise err > xml.etree.ElementTree > . > ParseError > : > no element found: line 1, column 0 > > > > > > On Mon, May 14, 2012 at 2:47 PM, Johannes Radinger <[email protected]>wrote: > >> Hi Filipe, >> >> you mean your hydrological network is in vector format? >> >> Maybe you can try the v.strahler add-on but I don't know >> how uptodate this module is: >> >> http://grass.osgeo.org/wiki/GRASS_AddOns#v.strahler >> >> /johannes >> >> >> Am 14.05.2012 um 13:26 schrieb Filipe Silva Dias: >> >> > Dear all, >> > >> > I have a digitized hydrological network and I need to calculate the >> stream order (Horton, Strahler etc). >> > >> > I found r.stream.order but it requires that the hydrological network >> comes from a DEM, which in my case produced an hydrological network that is >> considerably different than the digitized one (tried both with r.wateshed, >> r.terraflow and r.stream.extract). >> > >> > Is there a tool capable of doing this? Apparently ArcGIS can do this, >> but id prefer na open source solution. >> > >> > Thanks >> > >> > Best regards >> > >> > Filipe >> > _______________________________________________ >> > grass-user mailing list >> > [email protected] >> > http://lists.osgeo.org/mailman/listinfo/grass-user >> >> >
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