Center Line (2D)

General

• You can add center lines to a circle, arc or ellipse. You can also use the function to add a symmetry line by clicking to two points.
• The drawing of the centerline can be controlled with the context-sensitive menu.

  

• You can adjust the value of the center line offset. The offset can be absolute or relative to the size of the circle/arc.
• If you drag the circle's arc or location from the circle's grips, the center cross will update to the new location and size.
• You can remove the centerline associativity for the circle by selecting the centerline and the Properties function from the context-sensitive menu. Delete the constraint Center line from the list that opens.

  

Add a center line

1. Select Drawing | Lines | Smart > Centerline.
2. Edit the offset of the center line, if necessary When the symbol appears in the lower right corner of the cursor, right-click to display the context-sensitive menu.
   • Select Properties (arc’s center lines) to change the center line offset for a circle or arc. See Defining a Center Line Exceeding of an Arc.
   • Select Properties (other center lines) to change the offset of the center line of two points. See Defining an Exceeding of a Center Line.
   • If necessary, select the Direction pointsto click the direction of the center line and the start and end point of the center line separately.
3. Add a center line in one of the following ways:
   • Select a circle, ellipse or an arc, to which you add centerlines.
   • Click two points for the center line.
   • If you selected the auxiliary function Direction points, first define the direction by clicking two points, and then click the points of the center line.