From 51d9f86120952cbc7af42ae75b642bd9a0f0e3cc Mon Sep 17 00:00:00 2001
From: Lionel GUEZ <guez@lmd.ens.fr>
Date: Thu, 5 Oct 2023 21:28:15 +0200
Subject: [PATCH] Give a default value to `traj_prop`
Preparing to process phantom patterns.
---
Trajectories/trajectories.py | 11 ++++++-----
1 file changed, 6 insertions(+), 5 deletions(-)
diff --git a/Trajectories/trajectories.py b/Trajectories/trajectories.py
index 66d108ec..d93a137d 100755
--- a/Trajectories/trajectories.py
+++ b/Trajectories/trajectories.py
@@ -49,9 +49,10 @@ else:
# This happens if there are only isolated segments.
print("No cost values in the input file.")
-traj_prop = g.new_vertex_property('int')
-# Trajectory index to which a segment belongs. The trajectory index is
-# also the index in lists traj_vert_ind, traj_segm and expanded_traj.
+traj_prop = g.new_vertex_property('int', val = - 1)
+# Trajectory index to which a segment belongs. - 1 means the segment
+# does not belong yet to any trajectory. The trajectory index is also
+# the index in lists traj_vert_ind, traj_segm and expanded_traj.
ind_traj = - 1 # initialize index of trajectory
@@ -74,7 +75,7 @@ for n in topology.topological_sort(g):
# Assign to n the trajectory of closest_pred. This means
# updating ind_traj, traj_prop and
# traj_vert_ind. closest_pred is already in a trajectory,
- # traj_prop[closest_pred]] is defined. We extend the
+ # traj_prop[closest_pred]] != - 1. We extend the
# trajectory of closest_pred forward.
traj_prop[n] = traj_prop[closest_pred]
traj_vert_ind[traj_prop[n]].append(n)
@@ -83,7 +84,7 @@ for n in topology.topological_sort(g):
else:
ind_traj = new_traj(ind_traj, traj_prop, n, traj_vert_ind)
- # traj_prop[n] is defined
+ # traj_prop[n] != - 1
print("Number of trajectories: ", len(traj_vert_ind))
--
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