There is scope for refactoring in this port(such as replacing each with more powerful methods). My first priority was to get it working. Now that it does, I will refactor the code sometime soon, hopefully.
I ported the code from the Python for Fun series’ article entitled Waves and Harmonics. This port still has some rough edges, no pun intended, and not tested very well(see the disclaimers below). It is located on the Box widget to your left with the label ploty.rb. It can be run by typing in ruby ploty.rb. The code is licensed under GPLv2
To actually “explore the Fourier series”, please go ahead and read the original article above. I don’t have the time and patience to go into that after porting this thing–the Ruby/Tk canvas binding was not that intuitive to me(which is rare, most ruby packages I have run into are very intuitive). I had to hunt and peck through Google to find out more about TkcLine, etc.
It turns out, that this is a good collection of scripts–just source code–mostly English, some Japanese strings are there sometimes:
Here’s a screenshot
Unfortunately, the Mac version doesn’t take advantage of anti-aliased rendering.
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