I noticed one of the ArchiCad9 objects (the Tube in Basic Shapes 9) has a refrence to command called "HOTARC2" in the 2D script. I hadn't noticed this in the manual so I thought I would share this interesting little discovery!
Here's an extract from the script:
LINE_TYPE gs_outer_line
poly2_b 2, mask, gs_fill_pen, gs_back_pen,
0, 0, 901,
radius_1, 360, 4001
hotarc2 0,0,radius_1,0,180
hotarc2 0,0,radius_1,180,360
poly2_b 2, mask, gs_fill_pen, gs_back_pen,
0, 0, 901,
radius_1-tube_thk, 360, 4001
hotarc2 0,0,radius_1-tube_thk,0,180
hotarc2 0,0,radius_1-tube_thk,180,360
(Or am I being a dummy - is it mentioned in the manual?)