Running r.stream.extract and removing nulls from the accumulation map
produces weighted and unweighted stream maps with no data:
r.info dem.noweight.streams
Title: ( dem.noweight.streams )
Type of Map: raster Number of Categories: 0
Data Type: CELL
Rows: 1045
Columns: 1457
Total Cells: 1522565
Projection: Transverse Mercator
N: 28660140.36123598 S: 28628801.89941604 Res: 29.98895868
E: 549219.21981511 W: 505505.97596796 Res: 30.00222639
Range of data: min = NULL max = NULL
Data Description:
generated by r.stream.extract
Comments:
r.stream.extract elevation="dem_proj" accumulation="dem.weighted" th\
reshold=1000 d8cut=infinity mexp=0 stream_length=0 stream_rast="dem.\
noweight.streams"
and
r.info dem.weighted.streams
Title: ( dem.weighted.streams )
Type of Map: raster Number of Categories: 0
Data Type: CELL
Rows: 1045
Columns: 1457
Total Cells: 1522565
Projection: Transverse Mercator
N: 28660140.36123598 S: 28628801.89941604 Res: 98895868
E: 549219.21981511 W: 505505.97596796 Res: 30.00222639
Range of data: min = NULL max = NULL
Data Description:
generated by r.stream.extract
Comments:
r.stream.extract elevation="dem_proj" accumulation="dem.weighted" th\
reshold=1000 d8cut=infinity mexp=0 stream_length=0 stream_rast="dem.\
weighted.streams"
What might I have done incorrectly now? Again, each step followed the
r.stream.extract example with the addition of running r.null on the
accumulation map.
Rich
_______________________________________________
grass-user mailing list
[email protected]
http://lists.osgeo.org/mailman/listinfo/grass-user
