The Center Mark command adds a center mark to any circle, arc, ellipse, or in free space. You also can use a center mark to mark keypoints on an element, such as the endpoints and midpoints of a rectangle.

1. Choose Home tab→Annotation group→Center Mark .

2. On the Center Mark command bar, select the settings you want to use, and then click to place a center mark on one or more elements.

   Example:

   • To place a center mark on a single curved element, click the element (A).

     The center mark appears at the center point of the element (B).

     

   • To place center marks on a group of curved elements, click+drag to select the elements (C).

     

   • To place a center mark on a curve (D), do all of the following:

     

     1. Select the By 2 Points option from the Orientation list.

     2. Specify the center point by clicking the end of the centerline (1).

        

     3. To specify the location point, locate the arc and press C on the keyboard to select its center point (2).

        

     See the Help topic, Example: Dimension a Curved Slot.

   • To place a center mark in free space:

     1. Create a point with the Point command.

     2. Locate the point when you place the center mark.

        

   • To place a center mark that is associative to any keypoint honored by IntelliSketch, such as midpoints and endpoints of arcs and lines:

     1. Click the Keypoint Attachment option on the command bar.

     2. Click the elements at the locations where you want to add the marks.

        

   • To place a center mark at an angle:

     1. Select Use Dimension Axis from the Orientation list.

     2. Click the Dimension Axis option on the command bar.

     3. Click a linear element to identify the desired orientation angle of the center mark.

     4. Click the element to which you want to add the mark.