Voronoi By Parameter On Surface

I’m trying to build a voronoi on a flat surface in Dynamo. I have gone through the example of the rolled one and thought I could replace the revolved one with a flat surface, however, I’m not having any luck. Does anyone have any reading material examples or something that might help me understand how the “Veronoi.ByParameterOnSurface” node works? Thank you.

There was a similar discussion recently:

http://dynamobim.org/forums/topic/tessellation-on-face/

 

Thank you. I will take a look at it and maybe add a little more when I get the hang of it.