Here is the processing applet with source code for my entry. The code is based on a charter program I’ve been working on and off for a while, which I’ll publish once it’s more polished.
Select the applet then press a key to alternate between the 2 representations. The text file is the data, and the two png files are the images of the results.
Inserting processing applets in wordpress is not obvious. Here’s a discussion post for anyone interested.
media files: params.txt image.png image_matrix2.png