Edit Level Values¶
Use this dialog to specify the estimated standard deviation for the level instrument. This data is used for weighting measured leveling.
Where to Find the Dialog¶
Select the icon for Gemini Terrain Settings..., then choose Land Surveying: Instruments under Common Settings.
Number¶
Internal numbering system for the instrument.
If you need to enter the level instrument number using the Replace function in the list window, use the format 7/1, 7/2, ..., 7/9.
Name¶
Designation of the instrument.
Standard Deviation¶
The estimated observation accuracy when using the level instrument. The standard deviation is specified with a fixed value and a value that depends on the leveled distance.
- Constant part: Distance-independent standard deviation, specified in meters.
- Distance-dependent part: Distance-dependent standard deviation, specified in meters/km.
Example
Values for standard deviation calculation:
| Observation Type | Constant Part | Distance-Dependent Part |
|---|---|---|
| Height Measurement | 0.001 m | 0.001 m/km |