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- By default, line segments are created (as opposed to arcs). Select each endpoint, or enter segment lengths and angles in the Inspector Bar. Note: You can choose to enter an Angle (which is absolute in relation to the world) or a Relative Angle which is the angle from the immediately previous segment (arc or line).
2. To draw arc segments, select Arc Segment from the local menu or Inspector Bar.
3. By default, each arc segment is tangent to the previous segment, but the tangency can be changed via the local menu options. Select each arc endpoint, or enter parameters in the Inspector Bar. 
4. To switch back to lines, select Line Segment from the local menu or Inspector Bar.
5. When all segments are created, select Finish (Alt+F) from the local menu or Inspector Bar, or double-click the last point. If you want to create a line or arc segment connecting the first and last points, select Close (Alt+C).
Local menu options (Arcs):
Direction: Rather than creating an arc segment tangent to the last segment, you can set the start angle of the arc segment.
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