Force Redraw

The program should generally be good about knowing when to redraw the map when you change something about the data shown, the coverage area, or the display options.

The exception will be to clear temporary features, such as the trace for a distance computation.  For this you can use:

Force redraw

If you do need to  force a redraw because you have confused the program, use the Modify menu

Last revision 12/15/2016