How can I dimension these points from the Coordinate System as shown in the Picture below? I have all the points on the surfaces and created a coordinate system but I'm not sure how to dimension these points as shown below.

I'm working with our VAR on this but thought I throw it out these in case someone has some ideas. Thanks!

So, you have an equation for the two points to give distance, slope & direction, then, is the question how to display them tied to two points chosen with end lines & such as typical dimensioning? ... a reaction, feed the values to fill a 3D chart popup w/labels.