Pentax R-200 Series Instruction Manual page 133

From the PowerTopoLite screen, press [F2][CALC] to view the CALCULATION screen.
Select 3. 3D SURFACE & VOLUME and press [ENT] to view POINT SELECTION FROM THE LIST
screen.
If you press [F5][PAGE], you can see another screen.
You select points, which composes the polygon in order at this screen.
If you finish point selection of a polygon, press [F1][ACCEPT] to go to RH screen.
(RH stand for the Reference Height.)
Input reference height. If you finish it, press [ENT] to calculate. The result of calculates is displayed
as follows.
Press [ENT] to go to next screen as follows.
Press [ESC] to return to POINT SELECTION FROM THE LIST screen. You change a selection, and you
can calculate it again.
68