Javad TRIUMPH-LS User Manual page 125

CoGo Tools
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3-Points Arc
This function is used to calculate
all arc parameters given the arc
starting point (P ), any point on
1
the arc (P ) and the arc ending
2
point (P ).
3
Accuracy
In the Accuracy tool, the typical
Angular and Distance accuracies
of measurements are set. These
are used to calculate the Est.
Error shown in some of the CoGo
functions.
Combined Factor
Š
Grid-to-Ground Factor (reciprocal of Combined Factor)
Š
Elevation Factor
Š
Geo-to-Ground Factor (reciprocal of Elevation Factor)
Š
Grid-to-Geo Factor
Š
Grid Scale Factor (reciprocal of Grid-to-Geo Factor)
Š
It also calculates the Grid Convergence and Magnetic
Declination.
The units shown for the factors are ppm or shown as a
ratio. This is determined by the Units settings in Advanced
Settings found in the Advanced menu of Setup.
Using CoGo
Factors
Factors is used to calculate the
following scale factors from a
chosen point or the average
factors from a list of points:
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