Discussion Thread
Screen Compass
Message Thread

Measure circular or polygonal areas on your screen with the digital draftsman's tool.
Posted in the Screen Compass Forum.
Compass
What is the correct way to use the compass to measure a radius, I'm interested in measuring outside radiuses??
Compass
Position the compass so that it is centered on the center of what you are measuring. Extend the slider to the radius you want to measure.
Click the button on the slider so that it shows 'Radius'.