I can get radius dimensions in a simple model, make a circle, add radii anywhere, works perfectly.
But when I try in the attached model, it acts unpredictably, putting the start and end wildly out of position.
Metro Workstation fixture model code.
This problem showed to be a problem caused by the previous trimming of the arc used for the rdim. I have
corrected the trimming code (again) and the rdim now works as it should. Using the endpoint of #19 though,
is not a perfect choice in my opinion since it produces an arrow that is nearly tangent to the arc. I suggest you
select a better "break" position or "end" position... The correct code is in SVN# 118.