This sketch draws a number of circles to the screen which follow the movements of the mouse. The circles also interact with each other and the screen constraints. This combined with the differing opacity depending on how long the mouse is held in a certain position makes for a truly dynamic drawing tool. Click the mouse to start/stop the applet.
Because it would run slowly otherwise, there are only ten elements in this sketch, but if you download the source code you can add or subtract as many as you like.
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