Sketching a Partial Ellipse

1. Select a tool that allows for an ellipse.

   For example, click Annotate tabDetail panel (Detail Line).

2. Click Place Lines tab (or respective Place <Element> tab or Create <Element> tab)Draw panel (Partial Ellipse) or (Pick Lines).
   Note: If you select Pick Lines, you can pick the edge or face of another ellipse.
3. If you selected Pick Lines, on the Options Bar optionally specify a value for Offset.
   Note: Offset for an ellipse is only available when you select the Pick Lines option.
4. Click in the drawing area.

   Snapping is enabled for the partial ellipse, and a preview ellipse displays.

5. Move the cursor away from the first point to define the direction and extent of the major axis.
   
6. Either click when the desired value displays, or type a value and press Enter.
7. Move the cursor to get the desired partial ellipse shape and either click, or type a value and press Enter.