Bhagya Devnani

First, I started with creating a rectangular grid using the Coordinates function and the Cross-Product lacing.

Second, I created a coordinate for the pebble.

Then, I created the end points for the cylinders using the Distance function from the pebble to every point on the grid. These end points had a z value that was a sine-wave function.

Then, I used the Translate function to produce the set of end points for the Create Cylinders function.

Finally, all the parameters required in Revit were produced.