X-Git-Url: https://www.fleuret.org/cgi-bin/gitweb/gitweb.cgi?a=blobdiff_plain;f=mtp_example.cc;h=e4df5df8afb2ec6b25ae9d195edb9853097b9957;hb=5b566c29eac9896a002c8081e760fd3c7d3a4fc3;hp=fffeacb4ee5ee7d7bcf0791af1d8df4ec6d89f41;hpb=0b897c5e246862e9c9d46b319bcfe73fcd819460;p=mtp.git

diff --git a/mtp_example.cc b/mtp_example.cc
index fffeacb..e4df5df 100644
--- a/mtp_example.cc
+++ b/mtp_example.cc
@@ -24,6 +24,7 @@
 
 #include <iostream>
 #include <fstream>
+#include <stdlib.h>
 
 using namespace std;
 
@@ -54,14 +55,26 @@ 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. targets 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_motions[l][m] = abs(l - m) <= motion_amplitude;
+    }
+  }
+
+  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);
     }
-    tracker->entrances[0] = 1;
-    tracker->exits[nb_locations - 1] = 1;
   }
 
   // We construct the graph corresponding to this structure