On Mar 8, 2010, at 5:33 PM, Eric Pettersen wrote:
or you might want to show a centroid only every 5 frames or every 10 frames, in which case you would prefix the 'define' command with "#5:" or "#10:".
Sorry, this part is misleading/wrong. Prefixing with "#5:" will execute the command only at frame 5 (not, 10, 15, etc.). To execute every 5 frames you would have to put in explicit copies of the command prefixed with "#10:", "#15:", etc. Tedious, I know. Sorry about that.
--Eric