Geographic Information Systems Stack Exchange is a question and answer site for cartographers, geographers and GIS professionals. It only takes a minute to sign up.
Sign up to join this community
I'm trying to automatically measure the distance between 500 points in order of attribute value. So the points have the value 1 to 500 and in that order I want to measure the individual distance of all points from its predecessor.
Is there a tool or plugin to execute this analysis in QGIS?
I don't think there is a plugin for that. But with a little sql, you can calculate it.
If predecessor is defined by their id, then you can execute following code in the databasemanager:
select
a. id,
b. id predecessor,
st_distance(a.geometry, b.geometry) distance
from fictief_point a
left join fictief_point b on a.id-1 = b.id
Go to Database > DB manager > DB manager. Navigate to QGIS layers and select your layer.
Open an sql-window and paste above code. Change 'fictief_point' twice to your layer name.
