This is an Advanced example.
This network contains example of how the Channel SOP can be used in conjunction with a POP network to manipulate geometry at the SOP level.
First a simple particle network allows the creation and collision of particles sourced from grid geometry.
Next the positional data of the particles is evaluated through a CHOP network using a Geometry CHOP. The Geometry CHOP returns the tx, ty and tz values for every particle birthed in the POP network.
Then, a Channel SOP brings the positional data back to the geometry level and applies it to the points on the original grid surface.