[PythonCAD] dimensioning

[Ed Richley]

Art:

It seems that I can't reply to ahaas at airmail.net. 

In cany case, I've been looking at the code a lot, trying to learn. I do know
that when it fails, the "DIM_EXTENSION" has the value of the "DIM_COLOR", as if
some index was off by one. But, I really don't understand what's going on in
preferences.py. Or, why the prefs.py has what looks like a dictionary (is that
correct?) for primary dimension parameters, and then suplements these with
variable assignments like:

dim_primary_extension = 0.1

at the bottom. Maybe you can explain some of this so I can figure out
some of these problems.

Thanks for looking into it.


Ed