its definitely not Voronoi based. It looks like some kind of grid filled with different modules that maybe change depending on its neighbours. You might want to check out those two examples from the Generative Design Book : 

Let us know how you get on - I'd love to see the results.

Yes, me too!

I thought it might be something similar to a Penrose tiling.
http://processing.org/learning/topics/penrosetile.html

thought about it as well but it doesnt really look like its repeating itself. does it ?

Its hard to see any large scale repetition but it can be seen on smaller scales and there appear to be seven different tile shapes being used: triangles, trapezoids, double trapezoids, diamonds, darts, trapezoid-darts, and pentagons. I made up some of those names, but I think you can tell what I'm talking about.

Edit: Hmm, maybe eight, it looks like there are two different diamonds.

Lots of the angles seem to be tenths of a circle so 36 degrees. I'm not sure how that helps though.

Hello,

It still amazes me.

Did anyone make any progress on this?

I think the image above could have been made more or less by hand without any algorithm.

There are parallel lines (which unfortunately can split up or regroup or .... ) with same dist

Sometimes I think the line is doing some left and right turns and then is closing in on itself (closing one round trip somehow).

The density is more or less the same everywhere.

What strikes me are the black holes (I count 22) --- maybe that they are distributed randomly and are a starting point on their perimeter

Let's think of the images in terms of each single line.

• Each line is drawn by an agent
• Each agent has rules.
• Reminds me of LGO turtle or L-systems.

Rule set

• start at one of the 22 holes
• start on the perimeter (radius 12 or so), 10 points are on the perimeter 
• go straight away from the center hole (two from each of the 10 perimeter points)
  
• never cross a line, move parallel if you meet one (with dist D)
• when free space, follow certain pattern (fast change of left right, diamond etc.) until you hit a line
• when going parallel to a line leave it or follow its turns?
  

I think thus the whole area could be filled. Well, there would probably be big holes still that we have to fill otherwise.

Greetings, Chrisir