Limit Wave Effect to Area Around Droplet Center

[Louis_Whlch]

Hi,

I’m trying to create ripple-like waves around 3 droplet points on a grid using Distance, Sine, and Graph Mapper. It works, but the waves overlap and become messy.

How can I limit each wave to only affect points within a certain radius (like 2–3 rings), and make sure the rest of the surface stays flat?

Tried Smaller Than and Dispatch, but not getting clean results.

Any tips?

Thanks!

here is the GH file, a screenshot of my GH and a photo of what I want to achieve.

droplet_effect.gh (14.6 KB)

[Joseph_Oster]

@Louis_Whlch

I’m trying to create ripple-like waves around 3 droplet points…

This thread has many posts about “ripple” surfaces:

Adding Points to Ripple

The core algorithm hasn’t changed since I introduced the damped sine (actually cosine) Expression component, just making it better. Wouldn’t it be nice if it worked with multiple rectangles? Took a few little tweaks to get the code in proper Grasshopper fashion, but it does now. Dimensions are obtained from the rectangles, which may be supplied by any means and need not touch each other. To demonstrate, there is a white “two rectangles” group that creates two side by side: ripples_20…

Based on a “Damped Sine Wave Formula” from David Rutten:

Damped Sine Wave Formula

There are many threads about “ripple” surfaces on this forum.

[Louis_Whlch]

Thank you! I didn’t know what it called, now I can look for some posts and tutorials.