Mercurial Hosting > traffic-intelligence

annotate scripts/examples.sql @ 1222:69b531c7a061

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
added methods to reset trajectories and change object coordinates (including features)
author Nicolas Saunier <nicolas.saunier@polymtl.ca>
date Tue, 20 Jun 2023 15:42:19 -0400
parents d44eba0db517
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
367
d44eba0db517 creating a file with SQL code samples
Nicolas Saunier <nicolas.saunier@polymtl.ca>
parents:
diff changeset
1
d44eba0db517 creating a file with SQL code samples
Nicolas Saunier <nicolas.saunier@polymtl.ca>
parents:
diff changeset
2
d44eba0db517 creating a file with SQL code samples
Nicolas Saunier <nicolas.saunier@polymtl.ca>
parents:
diff changeset
3 # get object id, first and last frame numbers, length and number of features
d44eba0db517 creating a file with SQL code samples
Nicolas Saunier <nicolas.saunier@polymtl.ca>
parents:
diff changeset
4 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;