Importing tie points

You can import tie points (TP) from a text file created from another OrthoEngine project. The file must include the estimated errors for the pixel coordinates, line coordinates, and elevations; otherwise, OrthoEngine will use default values.

Note: TP descriptors must be unique. That is, two or more TPs cannot share the same descriptor (ID) in a project. Should more than one TP have the same descriptor, OrthoEngine will prompt you to replace the existing TPs with the imported ones, or skip the duplicates. Therefore, TPs with duplicate descriptors will not be imported. You can avoid this difficulty by adding a prefix to the IDs of the TPs when you import them.

To import TPs

  1. In the Tie point file box, type the path and file name of the file that you want to import or, to select a file, click Browse.
  2. In the File format list, select a format.
  3. To add a prefix to the TP ID number, if necessary, select the Add prefix to TP_ID check box, and then in the Prefix to add box, type the prefix you want.
  4. Click Import.
Parent topic: Importing and exporting tie points
Previous topic: Opening the Import Tie Points window
Next topic: Opening the Export Tie Points window

© PCI Geomatics Enterprises, Inc.®, 2026. All rights reserved.