Art of Recursion

View on Github

An iPad/iPhone app to discover the art of recursive drawing through touch. Use a different number of fingers while touching to draw different recursive shapes, and watch them as they animate with pretty colors. Change color themes by double-tapping. The major iOS frameworks used here were Quartz2D and CoreAnimation.

Multi-Finger Touch Responses

Depending on how many fingers you use to interact with the application, a different recursive drawing will animate itself. Here's an example of using one finger in the middle of the screen to recursively draw these boxes within each other.

Here is an example with five fingers,

Animation, Fade-in and out, Color Themes

Whenever a shape is drawn, it draws itself one recursive level at a time, so you can see exactly how the recursion works to form the complete image. You can double-tap to change between a variety of built-in color themes.

Here's an example of using two fingers to draw a Levy.