I'm trying to identify specific points on the centerline of a river channel
by "river mile" , that is, points along a path at specified distances from
a starting point — not at regular intervals. Any suggestions how I might
go about this?
have a look at
https://grass.osgeo.org/grass82/manuals/addons/v.fixed.segmentpoints.html
for inspiration to create an input file for v.segment.
kind regards
Helmut
----
OSGeo charter member