Ruler Tool

(Document and Medical Imaging toolkits)

The ruler annotation object is a line that can be used to measure the distance between two points of the original image.

Holding down the Shift key while drawing the ruler will draw the ruler annotation object at an angle that is a multiple of 45 degrees.

In design mode, click on the object with the right mouse button to do the following:

For information on flipping, reversing or rotating annotation objects, refer to Flipping, Reversing and Rotating Annotation Objects.

For low-level implementation details, refer to Ruler Annotation Object.

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