Surface Area Calculation - Sokkia 130R Series Operator's Manual

19. SURFACE AREA CALCULATION

You can calculate the area of land enclosed by three or more known points on a
line by inputting the coordinates of the points.
Input
Coordinates : P1 (N1, E1)
P2 (N1, E2)
P3 (N3, E3)
• Number of specified coordinate points: 3 or more, 30 or less
• Surface area is calculated by observing the points on a line enclosing an area
in order or reading in the previously registered coordinates in order.
• If two or less points are used to measure an area, an error will occur.
• Be sure to observe (or recall) points on an enclosed area in a clockwise or
counterclockwise direction. For example, the area specified by entering (or
recalling) point numbers 1, 2, 3, 4, 5 or 5, 4, 3, 2, 1 implies the same shape.
However, if points are not entered in numerical order, the surface area will not
be calculated correctly.
PROCEDURE Surface area calculation by observing points
1. In the second Meas mode screen,
press [MENU], then select "Area
calculation".
Output
Surface area: S
REM
Resection
Area calculation
Set-out line
Point projection
85