I have a set of streams (currently a shapefile (line)) which I need to delineate the watersheds for. I have attempted to use various QGIS tools, however, each tool I have tried is for delineation of an entire region (i.e. DEM) rather than a few streams contained in a vector file.
My question is this: does anyone know of a tool designed to use vector files as an input (along with a filled dem) to generate watershed basin areas only for the lines in the file?
If more information is needed, please let me know and I will provide it and/or edit this post accordingly.