NavCom SF-2040 Rev.C - Manual (Page 152)

LAND-PAK™ User Guide – Rev. C
6-148
to surveying on t
the program to u he border between zones to force
se a particular zone.
mation: This two dimensional
mation option can either be by Plane
or dy methods. Both methods
t-f uares transformation. The
rigid body method does a
translation and rotation and
ne similarity does a
used in
nsformation).
t Alignment Azimuth: This option applies
ation when using one point in Align Local
Coordinates. Select which north to use. For this
method, the state plane coordinate is
o the local coordinate. Then the
use either the state plane grid or the
plied in this
geodetic true
d in survey calculations. In order to
S measured ellipsoid heights
ns by Carlson) referenced to
d (equal potential
g in
onal
• Transfor
transfor
Similarity
use a bes
Rigid Bo
it least sq
that the
transformation with a
without a scale. The pla
difference is
rotation, translation and scale. This option only
applies when two or more points are
Localization (tra
• One Poin
to the rot
alignment
translated t
rotation can
geodetic as north. No scale is ap
transformation. The state plane and
north diverge east and west of the state plane
zone central meridian.
• Geoid To Apply: This option will account for the
geoid undulation in determining the orthometric
heights (elevation) of the measurement.
Orthometric heights or elevation measurements
are use
convert ellipsoid heights h (He in Carlson
documentation) as measured by GPS into
orthometric elevations H (Eo in Carlson
documentation), a correction must be provided for
between the GP
(called GPS elevatio
the ellipsoid and the geoi
surface approximating global sea level). This
correction is the geoid undulation N (U
Carlson documentation). The conventi