Project vertical points from curve in waves not only in a linear direction

Hi! So i have a curve that i want to vertically project points from. My problem is that I can only project the curve in a linear direction, and i want to we able to have a graph or a slider so that i can project the curves in + and - vertical directions.

I can do it manually by copy and paste in rhino, but i figure there must be a easier way in grasshopper? Thank you in advance! Best, Siri !

Skjermbilde%20(4)|690x388

project.points.wavy.3dm (2.0 MB)

Sorry i see the GH file did not upload, here it is with a screenshot. Sorry for the inconvenience

Project points in waves not only in a linear direction.gh (15.3 KB)

Don’t understand you clearly. Is that what you’re after?

Curve_graph_manipulate.gh (9 KB)