X-Git-Url: https://fleuret.org/cgi-bin/gitweb/gitweb.cgi?p=mtp.git;a=blobdiff_plain;f=mtp_example.cc;h=2d6489e395a5ecb9d88be8c5b6f03947e1184f08;hp=92d406285edd10bc151ba8eea832feda102a6a37;hb=2bee794949c48671540bc70690d0b77c9168f953;hpb=c7d5cdf1982dacc5451f79599041b2e95524d3f7

diff --git a/mtp_example.cc b/mtp_example.cc
index 92d4062..2d6489e 100644
--- a/mtp_example.cc
+++ b/mtp_example.cc
@@ -54,18 +54,27 @@ int main(int argc, char **argv) {
 
   // Here our example is a 1D space with motions from any location to
   // any location less than motion_amplitude away, entrance at
-  // location 0 and exit at location nb_locations-1.
+  // location 0 (or in the first time frame, i.e. targets can already
+  // be in the scene when the sequence starts) and exit at location
+  // nb_locations-1 (or from the last time frame, i.e. target can
+  // still be present when the sequence finishes)
 
   for(int l = 0; l < nb_locations; l++) {
-    for(int k = 0; k < nb_locations; k++) {
-      tracker->allowed_motion[l][k] = abs(l - k) <= motion_amplitude;
+    for(int m = 0; m < nb_locations; m++) {
+      tracker->allowed_motion[l][m] = abs(l - m) <= motion_amplitude;
     }
-    tracker->entrances[0] = 1;
-    tracker->exits[nb_locations - 1] = 1;
   }
 
-  tracker->force_empty_first_frame = 0;
-  tracker->force_empty_last_frame = 0;
+  for(int t = 0; t < nb_time_steps; t++) {
+    for(int l = 0; l < nb_locations; l++) {
+      // We allow targets to enter in the first time frame, or in
+      // location 0
+      tracker->entrances[t][l] = (t == 0 || l == 0);
+      // We allow targets to leave from the last time frame, or from
+      // location nb_locations-1
+      tracker->exits[t][l] = (t == nb_time_steps - 1 || l == nb_locations-1);
+    }
+  }
 
   // We construct the graph corresponding to this structure