Key in zone - mapping plane parameters, Key in zone – oblique mercator settings – Spectra Precision Survey Pro v4.5 Ranger Reference Manual User Manual

Page 230

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Survey Pro Reference Manual

R-222

• North/East

Grid

: is where you set the coordinates increasing

positive in the north, east direction

• South/West

Grid

: is where you set the coordinates increasing

positive in the south, west direction.

Key In Zone - Mapping Plane Parameters

The Key In Zone Mapping Plane Parameters screen is used to enter
the values for the map projection zone.
The parameters required depend on the zone

type. They will include:

• Central Longitude / Latitude: is where

you enter the geodetic origin of the map
projection.

• False Northing / Easting: is where you

enter the coordinate offsets at the

origin of the map projection.

• Scale

factor

: is where enter the scale

factor of the map projection.

• N / S Parallel: is where you enter the north and south

standard parallels of the map projection.

• Azimuth: is where you enter azimuth of the central line of the

map projection.

Key In Zone – Oblique Mercator Settings

The Key In Zone Oblique Mercator screen is

sued to set extra parameters 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

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