If the applet doesn't show up and you only see a blank space above, try clicking on the space.

Type in a number of points, choose Rectangle or another option and click on Random. Then type in an algorithm name from the list below on the Algorithm field, type in a delay (for example, 20) and click on Animate. You can add or move points by mouse-clicking on the animation area. You can remove points by Alt-clicking them.

Possible choices for the field Algorithm are:

**Jarvis**- convex hull**Graham**- convex hull**PseudoHull**- a non-convex hull**Spiral**- a variation on Jarvis - try it!**Triang**- a sweep triangulation

These are the algorithms that are currently implemented on the server.