October 7, 2006

September 30, 2006

July 18, 2006

IFS sequence... invertable

Found the code for IFS trochoids and it still compiles! Made this 9 pic progression...

found IFS

Here's some more IFS trochoids I found while meandering through 80 gigabytes of unorganized backup data; including the Sierpinksi like one.

July 17, 2006

Iterated Function System

There is a type of fractal called an iterated function system (IFS) that applies a 'function' to your 'system' then applies the function again and again to the output (iterates). I tried this for trochoids and below is one of the creations. In this case the system is the sequence of circles comprising the trochoid (a circle being 2 numbers, radius and frequency). The function is a list of simple functions. The simple functions...well, I'll show how it works sometime, it's difficult to explain.

As I was hoping, the trochoids are somewhat fractalish in being self similar. I couldn't find my favorite example though; it looked just like a (slightly bulged) Sierpinski Triangle. I should be able to remake it sometime....

February 4, 2006


Knowing how to write a program is great when your computer doesn't work exactly how you like, such as iTunes not showing an estimated time remaining for a podcast download. Luckily I knew the trick to making a transparent window and a plugin that can take pictures of the screen. Armed with these I can put the window over the iTunes progress bar, take a picture of that area it defines and make an algorithm that scans the image and figures out how far along it is, keep track of time and that's all I need to estimate remaining time. It does all this each second. This is what it looks like...

As with many of my utility apps I expect my "iTunes image recognition progress meter" to be outdated in the next iTunes update (ie iTunes will show remaining time), but it was fun to make:) I've tried image recognition programs before but this is my first success.

January 11, 2006


Trying to visualize the set of the raise operation, it's a tricky one

January 6, 2006

circa preview

I've been working on a program named circa that I would like to share, but I don't have a good place to post it yet. When I find a place I'll link to it from this blog, along with the others I used to have out there; Trochoid, TroTorted and the Laser Scanners. These are some screen grabs on circa as I worked on it. It's in no way finished but it's fun and works for the most part.