Simulation class: 2D wave equations (in browser)

This is just pure awesome. It is so awesome, that I was jealous of the author for not being able to do this first, I almost didn't upvote it out of that jealously--it's that good. Keep up the good work!

(I'm working on hacking together sims myself but for a larger project--I'm part of a computation group at some state uni modeling HED plasmas.)

Re: Simulation class: 2D wave equations (in browser)

#5

Post by quarterwave » Fri, May 30, 2014, 3:38 AM UTC

Very nice! I assume clicking inside the panel is like throwing a pebble in a pond? Is this correct?

Re: Simulation class: 2D wave equations (in browser)

#6

Post by acadien » Fri, May 30, 2014, 3:58 AM UTC

quarterwave wrote: post #5

Very nice! I assume clicking inside the panel is like throwing a pebble in a pond? Is this correct?

Yes it is very similar, it sets the value at that grid point to its maximum height. This causes the neighboring grid cells to react accordingly (Laplacian in space), giving the rippling effect.

Re: Simulation class: 2D wave equations (in browser)

#7

Post by jhurliman » Fri, May 30, 2014, 5:10 AM UTC

Amazing!

Re: Simulation class: 2D wave equations (in browser)

#8

Post by oofabz » Fri, May 30, 2014, 5:22 AM UTC

If you like wave equations, you might also enjoy EmeWave:

http://psych.colorado.edu/~oreilly/emewave.html

The movies at the bottom of the page are great, and if you want to see how it's done, his papers give a thorough and rigorous explanation that is easy to translate into code.

Re: Simulation class: 2D wave equations (in browser)

#9

Post by kybernetyk » Fri, May 30, 2014, 8:02 AM UTC

Nice. Reminds me of old school demo effects.

Re: Simulation class: 2D wave equations (in browser)

#10

Post by SeanDav » Fri, May 30, 2014, 10:08 AM UTC

I wondered what language it was written in and found out after a little research: http://processing.org/