Tim's graduate piece

Last week I went to Germany again to visit the graduate show of my friend Tim. He made a very nice interactive installation piece. It's kind of a plotter which paints a picture according to certain set algorithms.
One of these algorithms -for example- entails the command that it is not allowed to paint a previously exisiting line twice. The plotter is therefore forced to branch off into another direction every time it crosses a previous line.
The whole process is triggered by a motion sensor, which results in a situation in which the piece only actively works when somebody is present in within the range of the sensor.

The concept of the piece derives from the ways in which composers like John Cage were trying to find different ways to transcribe their pieces. I have yet to read the essay which accompanies the piece but I will keep you posted!