About Measurement Functions
The Measure menu provides advanced measurement options. Measurements are applied to the current slice, as well as one slice before and after.
Distance, circle and angle measurements are visible in Viewer only. Distance and circle measurement functions are not available on non-calibrated images.
Distance: Measure distance between any two points.
Circle: Measure the diameter of a circle overlaying the image.
Angle: Measure the angle of any three points on the same plane.
Open Angle: Measure the angle between two open planes.
Point: Place text labels in the image.
See Next: When there is more than one measurement in the selected data, jumps to the slice where the next measurement occurs.
Delete: Delete measurement objects.
Calibrate: Calibrate the measurement functions in relation to a marker with known dimensions.