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Append Control Points

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, Compute Control Points tool, or a point feature class.

Usage

  • If both the Z Value Field Name and the Input DEM parameters are set, then the Z value field takes priority. If neither the Z Value Field Name or Input DEM parameters are set, then the Z value is set to 0 for all ground control points (GCPs) and check points.

Syntax

AppendControlPoints_management (in_master_control_points, in_input_control_points, {in_z_field}, {in_tag_field}, {in_dem})
ParameterExplanationData 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, then the Z value field is used. If neither the Z Value Field Name nor Input DEM parameters are set, then 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, then the Z value field is used. If neither the Z Value Field Name nor Input DEM parameters are set, then the Z value is set to 0 for all ground control points and check points.

Mosaic Dataset; Mosaic Layer; Raster Dataset; Raster Layer

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 for Desktop Basic: No
  • ArcGIS for Desktop Standard: Yes
  • ArcGIS for Desktop Advanced: Yes

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