changeset 205:5ff310be4942

Fix bug in during method, and make it the same as Allen (1983).
author Jamie Forth <j.forth@gold.ac.uk>
date Wed, 26 Jan 2011 10:44:29 +0000
parents 3b36cf79b525
children 1f3873585a5d
files base/methods.lisp
diffstat 1 files changed, 4 insertions(+), 2 deletions(-) [+]
line wrap: on
line diff
--- a/base/methods.lisp	Thu Jul 23 11:31:19 2009 +0100
+++ b/base/methods.lisp	Wed Jan 26 10:44:29 2011 +0000
@@ -407,8 +407,10 @@
 
 (defmethod during ((object1 anchored-period)
 		   (object2 anchored-period))
-  (and (time> object1 object2)
-       (time< (cut-off object2) (cut-off object2))))
+  (or (and (time> object1 object2)
+	   (time<= (cut-off object1) (cut-off object2)))
+      (and (time>= object1 object2)
+	   (time< (cut-off object1) (cut-off object2)))))
 
 (defmethod starts ((object1 anchored-period)
 		   (object2 anchored-period))