Spirograph GUI

Syntax: SpirographGUI;
SpirographGUI();

Dependencies: Make sure you add the folder "./HelperFcns/" to your MATLAB
path before running SpirographGUI(). This folder contains
helper functions that are called during execution

Description: This function generates a GUI in a MATLAB figure window
that allows the user to draw customizable multi-layer
spirographs

Controls: Controls are broken into three button groups: Shapes,
Figure, and Spirograph

The Shapes button group allows the user to select from a
list of available inner/outer shapes and customize their
parameters, including the ability to 1) modify the
positions of the holes in the inner shape, 2) change the
active hole, and 3) show/hide the shapes (e.g., you may
want to hide the shapes to view your finished spirograph!)

The Figure button group allows the user to 1) rotate
layer(s) of the existing spirograph, 2) delete layer(s) of
the existing spirograph, and 3) change the current axis
range

The Spirograph button group allows the user to customize
the 1) initial angle, 2) number of revolutions, 3) graph
resolution, and 4) plotting style (e.g., line color, line
width, etc.) of the next spirograph layer. After
customizing the layer, simply push the "Draw" button to
watch your spirograph draw itself (you can then push "Stop"
to terminate the drawing early, if desired)

Author: Brian Moore
brimoor@umich.edu