Mercurial > hg > nsaunier > traffic-intelligence

view scripts/examples.sql @ 1170:b55adb13f262

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
added functions on line crossing orientation and important reorganization and cleaning of related code
author Nicolas Saunier <nicolas.saunier@polymtl.ca>
date Mon, 27 Sep 2021 14:05:33 -0400
parents d44eba0db517
children
line wrap: on
line source



# get object id, first and last frame numbers, length and number of features
select OF.object_id, min(P.frame_number) as frame1, max(P.frame_number) as frame2, max(P.frame_number)-min(P.frame_number) as length, count(OF.trajectory_id) as nfeatures from positions P, objects_features OF where P.trajectory_id = OF.trajectory_id group by OF.object_id order by nfeatures asc;