Some tools support showing a text that displays distance between end points of the drawing. An example is 3D Arrow tool.
Distance text settings can be found at the Distance tab of tool properties. The text can be aligned to its parent tool in different ways that are controller by TrackingType selector:
NONE - Distance text is rendered as an on-screen text. TextPosition property controls position of text on the screen, having [0,0] in the center and [1,1] in right upper corner of the screen.
SHAPE ALIGNED - Distance text is rendered as an object lying on the ground. TextPosition defines relative distance of the text, in meters, text from the center of measured distance line.
CAMERA FACING - Distance text is rendered as a 3D object standing on the pitch, rotating towards camera continuously. TextPosition defines relative distance of the text, in meters, text from the center of measured distance line.
To adjust how the distance value is presented to video, use TextFormat property. It is using float value formatting syntax similar to the one used in C or Java. For example, using formatting string %.2f meters results in displaying distance with 2-digit precision: 6.28 meters.
Use DistanceValueType to change units of distance measurement.