You can measure distances between points in one Z plane or between points in many different Z planes. softWoRx supports four different methods for measuring distance:
Standard Two Point measures the distance between two points. Measurement starts over after the second point.
Single Reference measures distances from a single reference point.
Leap Frog is similar to Standard Two Point, except that the end point of each measurement serves as the start point of the subsequent measurement.
Multiple Segment measures the distance between a series of points.
You can also measure the distance and velocity of particle movement in time lapse images.