After the adjustment calculation, you optionally create a network plan that displays the adjusted network, including error ellipses and reliability rectangles. The components of the network plan are stored in the Survey database. Use Display Manager to style the components, as shown in the following table. Use the attribute FID_PROJECT to set a filter on the calculation project.
|
Network Plan feature class |
Description |
|---|---|
|
TB_SUR_FIELD_POINT |
Stores all points that have been imported from the field data. This feature class stores all points that are displayed in the Coordinate dialog box.
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TB_SUR_CALC_POINT |
Stores all points that have been calculated, including coordinate, precision, and reliability. After the completion of step 7, Calculate Adjustment, this feature class stores all points that are displayed in the Results dialog box, on the Calculated Coordinates tab.
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|
TB_SUR_V_FIELD_POINT |
This view provides the points that have been imported from the field data. Use FID_PROJECT to style the points. |
|
TB_SUR_V_RELIABILITY_RECT |
This view provides the reliability parameters, and the calculation project of the calculated points. Use NA, NB, and FID_PROJECT to style the reliability rectangles. |
|
TB_SUR_V_ACCURACY_ELL |
This view provides the precision, and the calculation project of the calculated points. Use EMA, EMB, and FID_PROJECT to style the error ellipse. |
|
TB_SUR_V_NETPLAN_POINT |
This view stores the points of the network plan that indicate the type of measurement, or the session of a point. Use the TYPE_ attributes to style the points. |
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TB_SUR_V_NETPLAN_LINE |
This view stores the network lines that indicate the measurements between the points, the type of measurement, and the calculation project. Use TYPE_HZ_MEASURE, and TYPE_LINE to style the lines. |
Network lines
- The start segment runs from the start point to the middle of the line. Normally it is styled as a continuous line. The end line runs from the middle of the line to the end point. Normally it is styled as dashed line.
- TYPE_LINE—Describes the route of the line. 0=start segment; 1=end segment.
- TYPE_HZ_MEASURE—Describes the type of horizontal angle measurement. 0 = Single measurement, one direction; 1 = Double measurement, both directions; 2 = Single return measurement; 3 or NULL = No direction measurement.
- Network lines are stored in the Survey database in a feature class of type Compound.
A network line consists of line segments and network points. For example, a tachymeter network line consists of a two line segments, and three network points at the start, middle, and end.
Network points
- TYPE_POINT—Describes the location on the network line. 0 = at start point; 1 = at the end/target point; 2 = in the middle of the line.
- TYPE_HZ_MEASURE—Describes the type of horizontal angle measurement. 0 = Single measurement, one direction; 1 = Double measurement, both directions; 2 = Single return measurement; 3 or NULL = No direction measurement.
- TYPE_V_MEASURE—Describes the number of vertical angle observations. 0 = Single measurement, one direction; 1 = Double measurement, both directions; 2 = Single return measurement; 3 or NULL = No direction measurement.
- TYPE_DISTANCE—Describes the number of distance observations. 0 = Single measurement, one direction; 1 = Double measurement, both directions; 2 = Single return measurement; 3 or NULL = No direction measurement.
- TYPE_HEIGHTDIF—Describes the number of height difference measurements. 0 = Single measurement, one direction; 1 = Double measurement, both directions; 2 = Single return measurement; 3 or NULL = No direction measurement.
- TYPE_SESSION—Describes the type of the measurement. For example, 1 = Tachymeter, 2 = GPS; 5= Control Distance.
A network point describes the session, and observations that have been made to determine the point. Network points are located either on the point or in the middle of a network line.