saving . . . saved r.stream.extract : The vector output file contains no data has been deleted. r.stream.extract : The vector output file contains no data has been hidden .
r.stream.extract : The vector output file contains no data
Title
Question
when I use "r.stream.extract" in conjunction with "fill raster file", There is no data in the vector output file.

QGIS General None min None sec 29-05-22, 3:57 p.m. TarunPant

Answers:

While using "r.stream.extract" make sure you are giving the correct settings which is as follows:
Input map : elevation map -- Use filled DEM
Minimum flow accumulation streams -- 1000 (or any of the desired value)
Advanced Parameters >> v.out.ogr output type -- select "line" from the drop-down
Save files unique stream ids (raster) and unique stream ids (vector) in the same location.
Suggestion: Keep trying with different accumulation values to get the correct stream network.
30-05-22, 8:50 p.m. meetagupta


Log-in to answer to this question.