Hello everybody,

A typical paint program will let you draw admirably straight lines, and
programs like MB-Ruler 0.93 on this freeware page provide a transparent
onscreen protractor and ruler:

http://www.ramlende.com/graphics.html

Haven't had so much fun since they took the scissors away from me in
grade school.

I'd be happy to host any pictures for comparison and even do the work of
drawing and measuring angles.

The chief area of debate would likely be the center of mass.

On the MB-Ruler hompage

http://www.Markus-Bader.de/MB-Ruler/index.htm

the update to MB-Ruler 1.3 (with screen loupe, RGB picker and multi
monitor support) is already available.

Bye

Markus