Getting coordinates from Project Base Point or from Survey Point?

Okay…Thanks…but…what is the Python script doing?
Having someone els finishing the script is not something I prefer…don’t get me wrong! I can use all the help I can, but I have no clue on what it does…the logic behind the script I mean.

Looking at the script and the multiple points I get in Dynamo and Revit I think you’ve taken the coordinates from Revit and have Dynamo calculate the new coordinates via the differance between the Project Base Point and the Survey Point.
Am I correct?

But there is no node that that let’s me pick a different starting point? So I can choose between PBP or SP?