Creating Center Lines With a Reference

1. Click Center Line with Reference in the Dress-up toolbar (Axis and Threads sub-toolbar).

   
   
   

   
   
   

   Tip: You can create center lines for several circles by multi-selecting them before starting the command.

2. Select the circle to which you want to apply the center lines.

3. Select the line that should be used as a reference.

   
   
   

   The center line created is associative with the reference line.

4. To create a pair of center lines according to a circular reference (a point or a circle), click Center Line with Reference in the Dress-up toolbar (Axis and Threads sub-toolbar).

5. Select the circle to which you want to apply the center lines.

6. Select the circle that should be used as a reference.

   The pair of center lines created is associative with the reference circle.

   
   
   

Notes:

• When creating a center line on a generative view, a message will be displayed if the center line cannot be associative to the 3D. In this case, the center line is neither linked to the 3D nor to 2D drawing elements. For example, a non-associative center line with a reference line will not be updated when the reference line is moved.
• You cannot apply this scenario to an ellipse.