The sample file is at http://kineme.net/composition/gtoledo3/Phil
Okey dokey... I think this is something that I found kind of fun and clever, that I didn't post about here (but I'm too lazy to look back in the archives right now!).
This is a file that allows you to draw, and basically "fill" the area in between whatever shapes you draw automatically.
As far as I know, i've never really seen anyone try to approach this dilemma in any way inside of Quartz Composer.
where I can "mouse up/mouse down" without clearing points.