Extract Familis Locations from Specific Point

Dear all,
I am new in the community and i am a dynamo primer user :slight_smile: .

I have a question: is it possible extract the family location (XYZ coordinates) from an origin point that i define? (not the Origin point of the project) I don’t want to change project base point or survey point to do this.

For example i define with “origin point” the intersection of two grids or the center of a column.

Anyone have suggestions?