While awaiting delivery of our Tracker data collectors, I've been familiarizing myself with the FieldGenius 2004 software using the demo installed on both a desktop computer and an iPAQ.

Mostly I've been doing COGO calculations. Using Traverse/Intersect I can compute coordinates around a traverse. Inversing point-to-point closing back onto the first point gives me the area of the traverse.

But I'm confused when the traverse boundary contains a curve.

(1) When I use the RAD inverse I can define the PC, center, and PT of the curve. But I can't see how to define the curve direction, right or left.

(2) I don't understand how to get the area of a traverse with curved boundaries. When I Inverse all the way around back to the first point (using combinations of Line & Rad Inverses) I get an incorrect area. I've tried starting at different points and going cw/ccw around the traverse. How does one compute the area?