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Resection Options
To select a method of resection and to configure resection parameters.
- From the Resection Method drop-down list, select a method of the resection:
- 2D - to calculate resection adjustments in the horizontal plane. This method is useful if known points have no elevation (2D points) assuming the occupation point obtains no elevation adjustment.
Note: When at least one point in 2D resection has height, the result point is a 3D point with a 0.0 height. When measuring all points with no height, the result is a 2D point.
- 2D+H - to separately calculate horizontal resection and vertical resection;
- 3D Combined - to calculate combined resection in both, horizontal and vertical planes.
Selected resection method is shown in the Resection dialog title.
- From the Scale Factor drop-down list, select how to use the scale factor in resection calculations:
- Select None to disable the scale factor in calculation of a TS occupation.
- Select Estimate Scale Factor to determine a scale factor. In this case, the scale is shown but not applied (shown scale factor value is grayed in resection results).
- Select Use Calculated Scale Factor to determine a scale factor and use it in the calculation of a TS occupation (shown scale factor value has normal color in resection results).
- Select the User Defined value to enter the scale directly in the Resection dialog and use it in the calculation of a TS occupation (shown scale factor value has normal color in resection results).
- From the Residuals Info drop-down list, select the residuals to display in resection results:
- Select Angular to display angular residuals (Res HA, Res VA, and Res SD) in resection results.
- Select Coords to display coordinate residuals (Res N, Res E, and Res H) in resection results.
- Select All to display both, angular and coordinate residuals in resection results.
- If required, clear the Use Default Measurement Accuracy check box to change the system default values for measurement accuracy:
- Distance - error in the distance measurement.
- PPM - part per million error in the distance measurement.
- Horz Angle - error in the horizontal angle measurement.
- Vert Angle - error in the vertical angle measurement.
Click
to save the entered resection parameters, click
to return to the previous dialog without saving.
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