Define Z Units for a GRID


Instructions provided describe how to define Z units for a GRID.


Follow the steps below:

  1. Open Windows Explorer.
  2. Navigate to the location of the GRID.
  3. Open the folder with the name of the image.
  4. Right-click on 'prj.adf' > Open with... > select Notepad or Wordpad.
  5. Of interest is the ZUNITS parameter. It may be absent or set to a value of 'NO' or 'NONE'. Change this to FEET, METERS, or a floating point value which represents units per meter.
  6. Save the changes. The Z units are now defined.

Article ID:000008483

  • ArcMap 8 x
  • ArcMap 9 x

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