Sketching an Arc from the Center and End Points

Use this sketching option to create an arc up to 180 degrees. If you move the cursor so the arc exceeds 180 degrees, the arc flips to the other side.

1. Select a tool that allows for an arc.

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

2. Click Modify | Place Lines tab (or respective Modify | Place <Element> tab or Modify | Create <Element> tab)Draw panel (Center-ends Arc), and place the cursor in the drawing area.
3. Click in the drawing area to specify the center of the arc.
4. Move the cursor and click to define the arc radius and the start point of the arc.
   
   Note: You can also use listening dimensions to specify the radius of the arc. Type a value for the radius and press Enter.
5. Move the cursor and click to specify the end point of the arc.
   
   Note: You can also use listening dimensions to specify the angle of the arc. Type a value for the angle and press Enter.