Spirograph

The Spirograph program displays and saves, in ".svg" format, graphs similar to those that can be made with the children's game "Spirograph". The ".svg" format is supported by most browsers. So, you can make and save graphs, and then print them with your browser.

Examples

Here are two examples of graphs generated with Spirograph.

Example #1.

Example #1.

Example #2.

Example #2.

Theory

The derivation of the parametric equations which trace out spirograph curves is contained in the document "Parametric Equations for Spirograph Curves". The Spirograph program uses these equations.

Installation Instructions

1. Click on the Spirograph.jar link below and download the file to your Desktop.
   
   
2. To run the program, double click on the downloaded "Java" icon. That's it!
   
   
3. Spirograph.jar   (136,741 bytes)

Source Code

1. Click on the Spirograph Source.jar link below and download the file to your Desktop.
   
   
2. From the console type
   

   cd Desktop
   jar xfv "Spirograph Source.jar"
   

   A folder Spirograph Source containing the source files will be created.
   
   
3. The file Spirograph Source.jar can then be deleted.
   
   
4. Spirograph Source.jar   (129,838 bytes)