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Correct Base
This dialog allows to perform correction of the existing Base coordinates, or to assign new coordinates for the Base if it was installed at an imprecise position.
Warning: We advise you to experiment with the correction procedure before using it for work. This will allow you to understand whether the exported results and generated reports meet your requirements.
The Correct Base procedure can be performed without a connection to the Rover: for example, after the survey.
Note: Base correction cannot be performed if the Known Point with the existing Base coordinates has local coordinates (offsets have 'N/A' values).
The Base correction can be applied in two ways: 1 - to horizontal and vertical coordinates of the existing Base or 2 - to vertical coordinate only.
- To perform the correction of horizontal and vertical coordinates of the existing Base:
- In the Known Point field, leave the Correct Height Only check box cleared.
- In the Known Point field, select a known point with existing Base coordinates. Enter point name to the corresponding field manually, or select from the map
or from the list
of job points.
- In the Measured Point field, select a topo point which coordinates will be used for correction of the existing Base coordinates. Enter point name to the corresponding field manually, or select from the map
or from the list
of job points. Clicking the
button opens the Topo dialog to measure and save the point to the current job and instantly enter this point to the corresponding field.
- To perform the correction of vertical coordinate of the existing Base:
- In the Known Point field, check the Correct Height Only box to apply correction only to the vertical coordinate of existing Base. Horizontal coordinates remain non-corrected.
- In the Known Point field, use the switching button to choose how to enter the known vertical coordinate:
- Switch the button to Point to enter the known point with existing Base vertical coordinate. Enter point name to the corresponding field manually, or select from the map
or from the list
of job points.
- Switch the button to Height to enter the corrected vertical coordinate manually. If you also check the Create Design Point box, the Add Point dialog will open later to add a new point with entered vertical coordinate to the current job.
- In the Measured Point field, select a topo point which coordinates will be used for correction of the existing Base coordinates. Enter point name to the corresponding field manually, or select from the map
or from the list
of job points. Clicking the
button opens the Topo dialog to measure and save the point to the current job and instantly enter this point to the corresponding field.
Click
to recompute the coordinates for all points measured using this Base in the current job.
The existing coordinates of the known point are not replaced by the coordinates of the measured point (Topo Pt); the measured point's coordinates are used to recalculate coordinates of topo points saved before correction and to calculate the current coordinates of the Base station. After base correction, the Raw Data dialog displays the base station coordinates as Ph. Center Coords (Corrected).
Note: The Correct Base procedure can be repeated. Old corrections will be replaced with new corrections, and all dependent coordinates will be updated in the job. Correct Base dialog allows you to return to previous corrections at any moment.
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