Measurement - Transformation

On the Transformation tab, select a session

• To view the coordinate observations.
• To set up the transformation type.

The Transformation tab displays the coordinates that have been imported from an instrument of type GPS.

Transformation tab	Description
Select Session/Name	Selects the session to view. By default the session name is GPS <number>.
Create Session	Creates a session. Use this function to manually add a session to the current calculation project.
Delete Selected Session	Deletes the selected session.
Detail Points area	To exclude or include detail points from the adjustment calculation. The command applies to the selected session. These commands can also be started for the whole calculation project. See also Detail Points Configuration
Activate All	Includes all detail points of the selected session by setting the Active attribute in the Measurement Data tab.
Deactivate All	Excludes all detail points of the selected session by clearing the Active attribute in the Measurement Data tab.
Session area	Displays the session measurement.
Name	Displays the session name. If you use the default name, this field is empty. The default name is GPS <number>, and it is displayed under Select Session / Name. To modify the name, enter a new name.
Number	Displays the session number. The session number is created automatically. It indicates the order in which the GPS files have been imported. Attention: The session number can be used to control the determination of the transformation parameters. For example, if you want to use one particular session to determine the transformation parameters, you use the session number to address the session. See Transformation Parameters
Instrument	Specifies the instrument.
Operator	Specifies the operator.
Parameter	Displays the transformation parameters: translation, rotation, and scaling. Click to display all options. See Transformation Parameters

The measurement is displayed on two tabs, Measurement Data tab, and Results tab.

Transformation Measurement Data Tab

Measurement Data tab	Description
identifier	Unique identifier, such as a point number. Imported from the field data.
FC	Field Code that specifies the feature class of the point. Imported from the field data.
Point Type	Specifies whether the point is a Base Point Detail Point. See also Measurement - Point Types.
Active	Specifies, whether a point is used for approximation or adjustment calculation.
E	Easting. Displays the measured coordinate in east-west direction.
Std. E	Displays the standard deviation for easting. Imported from the instrument settings.
N	Displays the measured coordinate in north-south direction.
Std. N	Displays the standard deviation for northing. Imported from the instrument settings.
H	Displays the measured height.
Std. H	Displays the standard deviation of the height. Imported from the instrument settings.

Transformation Results Tab

The Results tab displays the residuals and indicators for each observation.

Results tab	Description
Identifier	Unique identifier, such as a point number. Imported from the field data.
FC	Field Code that specifies the feature class of the point. Imported from the field data.
Vi	Specifies the residual error of the observation.
Zi	Specifies the local reliability. See also Local Reliability Zi.
Nabla	Specifies the largest undetectable error of the observation
Wi	Displays the normalized residual error of the observation. See also Normalized Residual Error Wi.
Gi	Specifies the estimated size of an error in the observation. See also Normalized Residual Error Wi.