From: ptkwt@...1.aracnet.com (Phil Tomson)
Date: 2003-06-21T05:17:32+09:00
Subject: Re: ANN: SuperShape 0.0.2 (and comparing GUI toolkits)

Forgot to mention where to get it:

http://www.aracnet.com/~ptkwt/ruby_stuff/supershapre.tar.gz

In article <bct74701vhn@enews2.newsguy.com>,
Phil Tomson <ptkwt@shell1.aracnet.com> wrote:
>I updated the Tk app that demos the SuperShape extension so that it uses 
>slider bars instead of entry boxes so that you can play with it more 
>interactively.  I'm not real happy with the performance so I plan to do 
>several other GUIs using various toolkits in order to compare performance 
>issues as well as other aspects of various GUI toolkits.  I'll include 
>these examples in future releases of SuperShape with the intent that it 
>can become a means of comparing the various GUI toolkit bindings available 
>in Ruby.
>
>So What's a SuperShape?
>
>A Belgian Biologist named Johan Gielis discovered a formula
>that can create a vast diversity of natural shapes. By tweaking four 
>parameters it can produce everything from simple triangles and pentagons, 
>to stars, spirals and petals.
>
>For more info on Super Shapes check out this article in Nature:
>http://www.nature.com/nsu/030331/030331-3.html
>
>Also, check out this paper which goes into some of the math and suggests 
>settings to try:
>http://astronomy.swin.edu.au/~pbourke/curves/supershape/
>
>This package includes a C-extension with the SuperShape
>formula. There's also a nifty Tk app that lets you play with different 
>settings and then plots the supershape.
>
>0.0.2: updated to use sliders (TkScale) instead of TkEntry