You can delete the Ruler via the Ruler tool ( ) arrow (context menu) or via the Ruler context menu in the scene. You can replace the Ruler via the Ruler tool context menu or by using the keyboard shortcut.
Since you can only have one Ruler in the scene, you need to either replace or delete the Ruler before you can create another Ruler.
To delete the Ruler:
- Do either of the following:
- In the Viewer window Camera View Display toolbar options (), left-click the Ruler tool ( ) arrow (context menu) and choose Delete Ruler.
- In the scene, right-click the Ruler measurement units and choose Delete from the context menu.
To replace the Ruler:
- Do either of the following:
- In the Viewer window Camera View Display toolbar options (), left-click the Ruler tool ( ) arrow (context menu) and choose Replace Ruler.
- Press Ctrl-Shift-R.
The cursor changes to a 2D cursor ( ).
- Hover over an object or element and click or click-hold to snap the Ruler "object" start point to the object or element.
- Hover over the second object or element and click or click-hold to snap the Ruler "object" end point to the object or element.
See also Saving the measured distance between two objects in the scene.