This tests the Circles plugin. 

You will need to take the plugin called "Circles_PI.xcm" from the Examples Plugins:CirclesPI folder and drop it into your plugins folder otherwise this program will not compile.

The buttons just do the following by calling the circles plugin

(1) Draw 1000 circles on the canvas using the Field as a counter.

(2) Draw 1000 circles and use the Text as a counter.

(3) Draw 1000 circles using RBscript