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TwoCircles
Measure distance of two circle.
Perpendicular
Measure length of perpendicular
Concentric
Measure radius of two circles.
Text
Annotation
Draw text annotation on the image.
Option
Change stroke width and color of rulers, and the size and color
of the text.
export
Export the image with measurement rulers.
Delete
Delete the selected ruler
Delete
Delete all
5.3 Measure with line ruler
Choose an calibration, the selected item will show with white background and black text.
Choose line ruler from right side bar. There will be an line ruler show on the image.