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Applanix exterior orientation file

  • Correct examples
  • Incorrect examples

The exterior orientation file, provided with the Applanix data, contains specific information about the flight and collection. The information in this file must contain the following information in a consistent order.

The EO text file must contain the following line:

(position in Meters, orientation in Degrees, lat, long in Deg)

The frame information—ID, # EVENT, TIME(s), EASTING, NORTHING, ELLIPSOID HEIGHT, OMEGA, PHI, KAPPA, LAT, LONG—must be present after the above mentioned line in this order. These fields are tab separated. Only the LAT and LONG fields are optional. The value of the ID field must be the same as the name of the image and can be specified with or without an extension.

Correct examples

Note:

The field names in these examples are aligned with the values for readability. However, in reality, they will not align, but will be positioned using a tab delimiter.

Using all fields

(position in Meters, orientation in Degrees, lat, long in Deg)

ID         # EVENT  TIME(s)    EASTING    NORTHING    ELLIPSOID HEIGHT  OMEGA  PHI   KAPPA   LAT    LONG
196493710  3        564155.65  365324.63  3096141.49  2088.37           -1.05  0.32  179.18  27.98  -82.36

Exluding the last LAT and LONG fields

(position in Meters, orientation in Degrees, lat, long in Deg)

ID         # EVENT  TIME(s)    EASTING    NORTHING    ELLIPSOID HEIGHT  OMEGA  PHI   KAPPA
196493710  3        564155.65  365324.63  3096141.49  2088.37           -1.05  0.32  179.18

Incorrect examples

Unit specification is above below the frame information

In this example, the unit specification line is below the frame information—which is incorrect. The unit specification line must be above the frame information.

ID         # EVENT  TIME(s)    EASTING    NORTHING    ELLIPSOID HEIGHT  OMEGA  PHI   KAPPA   LAT    LONG
196493710  3        564155.65  365324.63  3096141.49  2088.37           -1.05  0.32  179.18  27.98  -82.36

(position in Meters, orientation in Degrees, lat, long in Deg)

The 2nd and 3rd fields are missing

In this example, the # EVENT and TIME(s) fields are missing; therefore, the frame information will not be read correctly.

(position in Meters, orientation in Degrees, lat, long in Deg)

ID         EASTING    NORTHING    ELLIPSOID HEIGHT  OMEGA  PHI   KAPPA   LAT    LONG
196493710  365324.63  3096141.49  2088.37           -1.05  0.32  179.18  27.98  -82.36

Related Topics

  • Raster type properties
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