GTCO QuikRuler - Users Guide - Manual (Page 20)

QuikRuler 20
Area Shortcut
If the area you are measuring contains straight edges, you can use a shortcut when
calculating the size of the area:
 Trace the curved portion of the area by pressing the stylus tip down and following
the area’s perimeter.
 When you reach a straight edge, lift the stylus tip at one end of the edge and press it
back down at the other end.
Adding or Subtracting Areas
After calculating the size of an area, you can add or subtract another area from it. For
example, suppose you are estimating the amount of paving material that will be needed for
a parking lot. You would first measure the size of the entire lot, and then subtract the sizes
of the areas within the lot that will not be paved.