Spectra-precision Survey Pro 3.80 Recon GPS Reference Manual Uživatelský manuál Strana 45

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Survey Menu – RTK
45
Projection Key In Setup - Oblique Mercator
This page is only displayed when the
Zone type
is set to
Oblique
Mercator Angle
.
Azimuth At
: is where you enter the convention for
projection azimuth. Your choices are:
Equator
Center of Projection
Origin At
: is where you enter the convention for
projection azimuth.
Equator
Center of Projection
Projection Key In Setup - Ellipse
The following screen is only displayed when
Datum type
is
Molodensky
or
Similarity
.
Choose an ellipse for the new zone.
Ellipse
from
Data Base
: choose this option to use
the selected data base ellipsoid.
Key in
Ellipse: choose this option to enter the
values for the custom ellipsoid.
Values
: is where you enter the values for the custom
ellipse if you are not using
Ellipse from List
:
Ellipse a
: is where you enter the semi major axis of the
new ellipsoid.
Other Parm
: is where you select the other ellipse
parameter to enter. You can use one of: Semi minor axis;
Flattening; Reciprocal flattening; First eccentricity; First
eccentricity squared; Second eccentricity; Second
eccentricity squared.
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