Hi Simon,
Thanks for the images.
You are correct. RH-45814 was a bug fixed to make Rhino 6 sr12 work like Rhino 5 sr14.
Now it works like Rhino 5 and does not draw the line.
With ISO, ANSI, JIS, DOD, CES and more, there are too many standards to make the decision to draw the line or not when arrows are place on the outside of the extension line. Also there are those that don’t follow a standard and have their own style that we want to support.
I have logged bug RH-50656 to ask for control of the dimension line. I am not sure if it will be addressed in the next version of Rhino or sooner. But the Rhino 6 sr12 behavior is back to match Rhino 5.
Thanks for alerting us to this issue.
Sincerely,
Mary Ann Fugier
McNeel Technical Support and Training
Seattle, WA
(BTW AutoCAD has had the DIMODFL variable and control for as long as I can remember. They have it right - do not make the decision, but give control.)