Circle packing on the surface

Can someone help me to create algorithm for randomly circle packing on the 2D surface?

This algorithm could be a good basic point but VB code won't work on my configuration (Rhino SR9 + Grasshopper 0.9)

http://www.grasshopper3d.com/forum/topics/circle-packing-1

In any case, i need a posibility to define diameters of circles (0.1 mm resolution) and, for each diameter, how many circles i want to be used for calculations.

For example. 3 circles from 4mm, 5 circles from 2.5 mm, 7 circles from 2.1mm and rest of the surface to be filled with 1.3mm circles...

In some cases i will use maybe 3 or 4 different diameters, in some cases maybe more than 10.

But mostly will be from 3 to 10 different diameters.

Also, it would be great if i could predefine positions for some of the circles. Mostly for greatest diameters.

Thank you and sorry for my bad english...

Replies to This Discussion

Permalink Reply by Daniel Piker on August 19, 2012 at 1:15pm

It's worth defining exactly what you mean by a circle packing.

Is it just that you want no 2 circles to overlap, and to fill the surface without too many large gaps ?

Or is it important that the circles should be tangent to one another ?

Here is a simple example with Kangaroo that uses collision forces between spheres of chosen radii to distribute points across a surface, also giving you the option to fix some centres.