In response to this thread;
http://www.cambam.co.uk/forum/index.php?topic=6737.msg54555#msg54555This plugin draws centre lines for Rectangles,
I plan to add circles soon and circles
It will appear in the 'Draw' menu as 'Centre Lines'
Just select one rectangle or circle then run the plugin.
It should work on CamBam 0.9.8. and 1.0
I had to go on a detour to get this working due to the transformations not being applied to rotated objects etc.
Edit: version 2 attached
1. works with rectangles and circles
2. translation added for message box
3. undo points added