Re: Only scored 0.2787 in Al Z's circle packing contest :)
- Posted by Juergen Luethje <j.lue at gmx.de> Nov 16, 2005
- 458 views
Al Getz wrote: > Juergen Luethje wrote: >> >> Al Getz wrote: >> >>> I decided to test my strategy of different diameter circle packing out by >>> submitting a test set in Al Zimmerman's Circle Packing Contest. <snip> >> How about simulating a rotating lottery machine (2 dimensional, of >> course) ^^^^^^^^^^^^^ <http://www.stern.de/standard/popup_neu.html?id=545423&bildint=0&img=%2F_content%2F54%2F54%2F545423%2Flottofee500_500.jpg&cred=Martin+Oeser%2FDDP&width=500&height=375&bgcol=%23FFE3CF&nv=pp&navid=81> >> Just another idea, trying to avoid thinking about the underlying >> Geometry. > > > Hi Juergen, > > > Hey thanks for reposting that link, as i almost forgot to look at it. That was thanks to Topica. Firstly I had sent that message by mail. When I didn't see it on EUforum after about 8 hours, I used the web interface at listfilter.com to repost the message. Then after 1 day or so, Topica delivered the original message ... > I think that would be pretty interesting too, but much harder I agree. > because it's in three dimensions My suggestion was to restrict it to 2 dimensions, see ^^^^^ above. But even then it's not easy to write such a program. > and the physics of the machine and it's contents > would have to be simulated...neither of which are necessary in circle > packing problems (depending on your strategy of course). > I could see a program like this taking a bit of time to calculate the > next delta t positions if there are a lot of balls in the globe. In the meantime I've thought a little about the underlying geometry, and some things are not as difficult as I had expected. There are still some problems that I haven't solved (yet), though. In the other post you wrote: | I myself wasnt very interested in circle packing at all, until i found | a very practical use for packing all circles the same diameter, at | which time i ended up with a program. I understand that very well, as I'm also very often interested in the *practical use* of things. However, the little Euphoria program that I have so far not only calculates the circles but also draws them on the screen, and for me the pictures are aesthetically very pleasing. ( They remind me somewhat of the art of Victor Vasarely, which was rather well known in the 70s ... ) In the other post you also wrote: | Only thing left now is...what would be a practical use for this kind of | thing? I have trouble coming up with something, except for one rather | off beat application: You'd like to display the family 'tree' as a | bunch of round pictures of different sizes of family members and you'd | like to pack them neatly into a large circle, print the whole pic out, | and hang it on the wall :) This sounds like a good idea for a self-made Christmas present, no? Regards, Juergen