Click the map at the point where you want the origin
of the line to be, drag the mouse across the map to where you want
the end of the line to be, and then click again.
A Measures layer is added to the Map Layers pane.
Set the properties for the Measures layer in the map
style property sheet.
The following figure shows an example of a map style
property sheet for a measures layer.
Measures layer properties
For a detailed description of the properties, see Programming
with JViews Maps for Defense.