It will be like academic conference – hexapod dance off – giant hexapods – poster session and the humor will come out of the contrast.

Hexacon!

The lifecycle goes like this:
– Pick a picture from the Android photo album
– Run a Canny edge-finder on it to get to a black bitmap with white lines on the edges of the original picture. I used a splendid implementation by Tom Gibara– Run a vectoriser on that, to generate vectors along those lines. I couldn’t find one I liked, so I write one, which was easier that I expected.
– Simplify the vectors – discard very short vectors, and replace straightish bits with straight lines. The Arduino can only store 300 points, so we have a strong incentive to optimise the vectors to within an inch of their lives.
– Package the vectors up and send them over Bluetooth to the Arduino
– Wait for the drawing ! 

For speed, I’m working with very low-resolution bitmaps – 128 pixels square by default.

http://hackaday.com/2012/01/13/pythagoras-a-delta-robot-for-drawing/
vectorizing linked to in SketchysrccomjarkmansketchyVectoriser.java
http://cardhouse.com/computer/vectcode.htm
Actual vectoriser code used in sketchy is in VectorWalker.java. TODO: read over and understand this code.

canny edge detection implementation in processing
http://stackoverflow.com/questions/5827809/canny-edge-detection-using-processing