Spectra Precision Survey Pro v3.80 Recon iPAQ Reference Manual - Manual (Page 185)

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R-179
Predetermined Area
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The Predetermined Area routine will take a boundary with one open
side and compute the location of a line that will enclose the boundary
with a specified area using the Hinge Method or the Parallel Method.
The Hinge Method computes the location of the side of a boundary
that can pivot on a fixed point.
The Parallel Method computes the location of one side of a four-sided
boundary where the computed side is parallel to a stationary side of
the boundary.
The top-left field is used to enter the desired area of the specified
boundary. In the next field, select the units entered from the
dropdown list.
Hinge : solves the boundary using the Hinge Method when selected.
Parallel : solves the boundary using the Parallel Method when
selected.
7DS 3RO\OLQH« : allows you to tap an existing polyline from a map
view to define the fixed sides of the boundary.
3 2
1
4 (hinge)
?
Hinge Method
3 2
?
1
4
Parallel Method