Summary
Combines control points to an existing control point table.
The points to be appended are the results from either the Compute Tie Points tool, the Compute Control Points tool, or a point feature class.
Usage
If both the Z Value Field Name and the Input DEM parameters are set, the Z Value Field Name takes priority. If neither the Z Value Field Name nor the Input DEM parameter is set, the z-value is set to 0 for all ground control points (GCP) and check points.
Syntax
AppendControlPoints_management (in_master_control_points, in_input_control_points, {in_z_field}, {in_tag_field}, {in_dem}, {in_xy_accuracy}, {in_z_accuracy}, {Geoid})| Parameter | Explanation | Data Type |
in_master_control_points | The input control point table. This is usually the output from the Compute Tie Points tool. | Feature Class; Feature Layer |
in_input_control_points |
A point feature class that stores control points. It could be the control point table created from the Compute Control Points tool, the Compute Tie Points tool, or a point feature class that has ground control points. | Feature Class; Feature Layer |
in_z_field (Optional) | The field that stores the control point z-values. If both the Z Value Field Name and the Input DEM parameters are set, the Z value field is used. If neither the Z Value Field Name nor the Input DEM parameter is set, the z-value is set to 0 for all ground control points and check points. | Field |
in_tag_field (Optional) | A field in the input control point table that has a unique value. This field will be added to the target control point table, where the tag field can be used to bring in identifiers associated with ground control points. | Field |
in_dem (Optional) | A DEM to use to obtain the z-value for the control points in the input control point table. If both the Z Value Field Name and Input DEM parameters are set, the Z value field is used. If neither the Z Value Field Name nor the Input DEM parameter is set, the z-value is set to 0 for all ground control points and check points. | Mosaic Dataset; Mosaic Layer; Raster Dataset; Raster Layer |
in_xy_accuracy (Optional) | The input accuracy for the X and Y coordinates. The accuracy is in the same units as the in_input_control_points. This information should be provided by the data provider. If the accuracy information is not available, skip this optional parameter. | Double |
in_z_accuracy (Optional) | The input accuracy for the vertical coordinates. The accuracy is in the units of the in_input_control_points. This information should be provided by the data provider. If the accuracy information is not available, skip this optional parameter. | Double |
Geoid (Optional) | The geoid correction is required by rational polynomial coefficients (RPC) that reference ellipsoidal heights. Most elevation datasets are referenced to sea level orthometric heights, so this correction would be required in these cases to convert to ellipsoidal heights.
| Boolean |
Derived Output
| Name | Explanation | Data Type |
| out_master_control_points |
Code sample
AppendControlPoints example 1 (Python window)
This is a Python sample for the AppendControlPoints tool.
import arcpy
arcpy.AppendControlPoints_management(
"c:/BD/BD.gdb/tiePts", "c:/BD/BD.gdb/controlPts",
"", "c:/BD/BD.gdb/dem")
AppendControlPoints example 2 (stand-alone script)
This is a Python script sample for the AppendControlPoints tool.
#append control points
import arcpy
arcpy.env.workspace = "c:/workspace"
#append the control points and tie points
target = "BD.gdb/tiePoints"
in_controlPoints = "BD.gdb/controlPoints"
dem = "BD.gdb/dem"
arcpy.AppendControlPoints_management(target, in_controlPoints, "", dem)
Environments
Licensing information
- ArcGIS Desktop Basic: No
- ArcGIS Desktop Standard: Yes
- ArcGIS Desktop Advanced: Yes