
Specifying the Calibration points
Fields
Image Coordinates (X,Y)
- The x and y pixel coordinates of the map image.
Degrees & Mins
Lat
- The latitude of the specified image coordinate. See
Special Keys and Stuff
for notes on how to
enter positions in different degree formats.
Long
-
The longitude of the specified image coordinate.
Grid Coordinates
(in this case
UTM Coordinates
but the name will vary depending on the selected
Grid in the Map Projection)
Zone
- The Zone used by the coordinate, this field is not always required. UTM, British National
Grid and the Irish Grid require a zone.
N/S
-
The coordinate
N
orth or
S
outh of the Equator, this field is not always required, mainly used for
UTM
coordinates.
Easting
-
The coordinate in the east/west direction.
Northing
-
The coordinate in the North/South direction.
Notes
When using scanned maps the edges of the image can sometimes be distorted when the original map
is placed on the scanner so it is better not to place any of the calibration points near the edge of the
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