Tripod Data Systems SURVEY PRO User Manual page 30

Survey Pro GPS User's Manual
that point and then: tap the H and/or V column beside that point;
press H and/or V on the keyboard.
Note: If your base was set up on a known point, that point is an
eligible control point. If your base was set up on a new point, then it
is not visible on the control point list.
8. If you wish to hold the scale of the GPS
measurements, but you want the localization
adjustment to correct for a rotation, check the Solve
Rotation Only control in the Fix H Scale to 1.0 box.
9. Double check the selection of control points and tap
Solve >. The localization parameters are computed
using the selected control points, and the next
screen is opened with solution RMS values.
10. For both horizontal and vertical, the solution type
and RMS value from the control points are
displayed. The solution type will be one of:
•
Unique: the solution was calculated using the
minimum number of control points or fewer. In
this case, there is no least squares solution to
provide residuals, so the numbers in the N Err, E
Err, and/or V Err columns are misclosures
calculated from the control points that are not
used in the solution.
• LSQ: the solution was calculated with more
than the minimum number of control points. In
this case, the least squares solution can produce
residuals, and the N Err, E Err, and/or V Err
columns show residuals for the points that are
used in the solution.
11. If you are not happy with the solution residual or
misclosure values for any point, you can change the
control points used by tapping in the H and/or V columns. This
30