Height Measurement (Depth Interpolation)
Function Description: This tool is applicable to point cloud data which calculates the relative height difference between two points in PlanarImage window.
Steps
1.Click Height(image) 
button via Planar Measurement mode.
2.Select the reference point of height measurement by left-clicking in PlanarImage window.
3.Double-click the left mouse button to select the end point of the height measurement to complete the measurement. The interface pop-up box will display the height information.
4.Right-click to go back to the previous point during the measurement.