Using a text file containing ground control points as a source

If you have a text file containing the ground control point (GCP) coordinates that you need for your project, you can easily import them. The GCPs are organized in the text file according to a specific layout. For example, the string IXYE represents the layout, where I is the GCP's identification, X and Y are the GCP's geocoded x and y coordinates, and E is the GCP's elevation.

If the text file does not contain the pixel and line coordinates, follow manual GCP collection procedures.

If the text file contains the pixel and line coordinates as well as the ground coordinates, all the points corresponding to the raw image are transferred to the project. After the points are transferred, you can use the manual GCP collection procedures to add elevation values to the points or change their positions.

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