Info: Open Flash Chart 2 is out. Version 1.x and these pages will
never disappear and the charts will continue working forever, but further
development on 1.x has stopped. Take a look at version 2 here
Open Flash Chart 2.
Gallery - Scatter Chart
You can mix scatter charts with line charts. You can also plot points at any real position, e.g. at 0.5, 0.5