Dynamic typing - Sampler filter

This post is superficially related to the basic concept of the previous, but shows a very similar pattern to Circuit Breaker. I call it Sampler filter, but I'm pretty sure there is an established name in the field of electrical engineering.
By implementing a Swing UI of my Mars Rover project (source code is here) I recently faced the problem that if I run hundreds of rovers, then refreshing the panel after every rover position change is impossible. Each position change puts an event - containing the positions for all rovers - on the channel the displayer logic listens to, and the messages just kept piling up. It's a typical IO bottleneck. So I decided it's enough to display every 100th or 1000th of them. They would change faster than my eyes can process them anyway. So I took the original function performing the display - repaint! - and wrapped it in a sampler. Here is the code