siteIcon

Tech Novice Tools

JSGS Challenges

burgerIcon
spiral

JSGrafix Sandbox (JSGS)

Ebbinghaus Illusion Challenge

Observations and Hints:

Seeing is not necessarily believing!

Look at each cluster of gray dots surrounding an orange center dot. Which orange dot is bigger? The upper left or the lower right one?

That's the point of the Ebbinghaus Illusion! It's the idea that we perceive the size of objects depending on their context.

Hints:

  1. Each gray dot is positioned radially from the orange dot with a uniform angle position based on the number of gray dots orbiting the orange dot
  2. The centers of the gray dots can be found using an application of SohCahToa based on that radial distance and uniform angle mentioned earlier
  3. Just a put that stuff in a loop...voila!

Last update: 02/17/20


Back to Challenge Home