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An fast realtime interactive fractal zoomer

3.4.8 Autopilot

Another interesting algorithm controls the autopilot. It is actually quite simple. Interesting parts are found at the boundaries of the set. It randomly looks around and zooms to the first area containing both outside and inside set points. Some fractals (such as the Newton) do not have points inside the set at all. In this case it selects a point where many (more than 2) different colors are around. (i.e., It zooms into noisy areas.)

In the instance that there are no such areas, the autopilot will unzoom. Also detects oscilating.

Current implementation also does detection of out of range numbers and randomly choosed points are choosed near the old one, to avoid too often changes of direction.