Hi Brian,

re:
> Does MoI have any ways to determine CW vs CCW for the circles?, or arcs?

If you get 3 distinct points on the arc (on a circle don't get start/mid/end because start and end are the same), you can then calculate the signed area of the 2D triangle which will be negative for clockwise order, positive for counter-clockwise.

Script code for calculating this is here:
http://moi3d.com/forum/index.php?webtag=MOI&msg=11521.42

- Michael