[GRASS-user] Create line perpendicular to other line at specific point

[Markus Neteler]

On Fri, Nov 8, 2019 at 10:02 AM Johannes Radinger
<johannesradinger at gmail.com> wrote:
>
> Hi all,
> I've vector lines representing rivers and a set of points. Now, I'd like to create short lines (e.g. 150 m) that are perpendicular to the river lines and cross at the coordinates of the points vector.

A similar (?) code is available in the v.civil addon:

https://grass.osgeo.org/grass7/manuals/addons/v.civil.html#transversal

Perhaps it could be separated out into a separe module?

Or, I see that Micha has some code to offer as well.

best,
Markus