Showing and hiding the rulers

You can show or hide the rulers in the Unified Modeling Language (UML) diagram editor.

You must have a diagram open and active in the diagram editor.
To show or hide the rulers, right-click an empty space in a diagram; then click View > Rulers.
Note: When you turn on the rulers, the guidelines turn on simultaneously. You can drag the vertical and horizontal guidelines, which are anchored at the upper-left corner of the diagram editor, onto diagrams and then line up diagram elements to the guidelines.
Related concepts
UML diagrams
Related tasks
Customizing default settings for the grid and rulers in new UML diagrams
Showing and hiding the grid in UML diagrams
Snapping UML diagram elements to the grid
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