Spectra-precision Survey Pro v3.80 Recon GPS User Manual User Manual Page 29

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RTK Data Collection
25
Use the Key In Parameters button to open the Projection Key In
Setup screen where you can configure a custom map projection
and datum.
Projection Key In Setup
Use the Projection Key In Setup screen to create a custom map
projection and a custom datum transformation to use as the selected
mapping plane zone:
1.
Tap Select Zone… on the Horizontal
card of the Projection screen
to open the Mapping Plane Setup screen.
2.
Tap Key In Parameters > on the Mapping Plane Setup
screen to
open the Projection Key In Setup screen.
3.
Pick the
Zone Type
for the new map projection zone. Supported
zone types are:
Transverse Mercator
Lambert 1 parallel
Lambert 2 parallel
Stereographic
(oblique and polar)
Oblique Mercator Angle
4.
Pick the
Datum Type
for the new map projection zone. Choices for
datum are:
Pick from Data Base
. Select this choice to use a datum
from the coordinate system database.
Custom Molodensky
. Select this choice to enter a custom
three-parameter datum transformation.
Custom Similarity
. Select this choice to enter a custom
seven-parameter datum transformation.
5.
Select the
Azimuth
type for the new map projection zone. Choices
are:
North Azimuth
. Select this choice to have a north azimuth
grid.
South Azimuth
. This choice to have a south azimuth grid.
6.
Select the
Grid
direction for positive coordinates in the new map
projection zone. Choices for grid direction are:
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