Spectra-precision Survey Pro v4.6 Recon-Nomad Reference Manual Manuel d'utilisateur Page 55

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Job Menu
R-47
Grid Factor: is where you enter a map plane scale factor if already
known, otherwise it is the scale factor computed from the Calculate
Scale wizard.
Calculate Scale : This opens the Calculate Scale wizard (Page R-47),
which is used to calculate a combined scale factor or map plane scale
factor.
Setup Map Ground Coordinates : This will first check that a map
projection is selected and if not, prompt you to select one. Next, it
opens a wizard where after providing an origin point and ground
system offset coordinates, the entire job northing/easting database
will be updated with the ground coordinate system transformation.
Change Map Zone : Opens the Select Coordinate System wizard
where you can choose a mapping plane zone or localized site from the
coordinate system database file as described on Page R-224. You can
also cr
eate a new zone and datum with user-specified parameters.
Calculate Scale
Job Settings Surveying Setup Scale Calculate Scale.
The Calculate Scale wizard is available when Use a single combined
scale factor or Use a grid factor with sea level correction is selected in
the Scale Settings
screen and is used to compute a scale
factor. If a map zone is not currently selected, you will
first be required to set one up before continuing (Page
224).
Projection: displays th
e details about the current map
zone.
Select Point: is where you specify a reference point.
Calc Scale > : opens Screen Two if Use a single combined
scale factor was selected. If Use a grid factor with sea
level correction was selected, you will return to the Scale
Settings screen and the computed grid factor will be
entered for you.
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