[GRASS-user] multiple

[Stefan Blumentrath]

Hi Frank,

My general approach would be like this:
v.overay to intersect transects and lines
v.to.points use=start to get transect start points
v.distance to get distance from transect start point to point where lines cross

With v.distance you need to try whether it is sufficient to compute distance to the nearest point only or if you need to compute distance to all intersection points within the distance equal to the length of the transect...
If the latter is the case you would need to filter out lines with distances that are not along a transect.

Hope that helps.
v.distance can produce lines, so you could check visually if the approach works as expected.

Just a suggestion.

Cheers
Stefan

-----Original Message-----
From: grass-user <grass-user-bounces at lists.osgeo.org> On Behalf Of Frank David
Sent: tirsdag 26. april 2022 20:01
To: GRASS user list <grass-user at lists.osgeo.org>
Subject: [GRASS-user] multiple

Hello,

I need to identify vector lines (like roads, rivers) crossed by a transect and get distance from the beginning of the transect. For the moment I'm using v.profile but it returns only the first item. Is there any way to get all crossed lines ?

Thank for your help,

Frank

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