How can one create a 'pulse effect' in Processing 3?

edited June 2016 in How To...

I am trying to visualize points that appear one by one on a graph I have drawn to the screen.

Ideally, a small ellipse would be drawn first, and from there, a "ring" would move outwards from the center of the ellipse and fade away while it is moving. The initial ellipse would remain where it was originally plotted.

I could code a simple fading ellipse, but am unable to figure out how to animate a moving ring. Could anyone please share some ideas on how to get started with this?



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