Javad TRIUMPH-LS, User Manual

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133
Localization
Now the center columns are populated with values for delta
North, delta East, delta Up. These values reflect the error
between our Design Points and Survey Points after applying
the localization. Because we have no redundancy in this
localization, there is no error to note, and so each field
reveals 0 residual. If I had three or more Design/Survey pairs
this screen would reflect meaningful residuals between the
pairs.
Pressing “Setup” I can see the details of the localization. I
began my base from an autonomous 10 second position
average. Now that I am tied to a known value, I see that my
autonomous position for the base was off by -5.182 feet
in Northing and 3.4717 feet in Easting, and 9.8297 feet in
Elevation. Because I am working with a known projection,
there is no rotation to apply and because I have only one
point, there is no scale to apply to the Survey points in order
to best match the Design points as there would be had I
surveyed two or more points. There is also no North and
East Inclination to best match elevations between Survey
and Design points as there would be had I surveyed two or
more points.
Returning to the Localize Screen after reviewing the
localization parameters, it is time to save the localization.
In this example, my primary objective was to determine
the position of the base, so I’ve pressed “Save” and selected
“Adjust Base Position”. J-Field automatically translates
all points previously observed with the base at the same
time the base coordinate is being translated. In this case,
surveyed point “S104”is the only point to be moved. I
changed the Target CS to my State Plane system and
pressed “Save Adjusted Base Point”