Map GPS Coordinates - GPS Map Coordinates ... - Global Mapper

When rectifying new imagery, you can control the default projection used by creating a
default_rectification.prj file in your Global Mapper installation folder. If present, the default rectification
projection selected when you open the rectification dialog will be whatever projection is specified in that PRJ
file.
Ground Control Points List
This section of the dialog contains a list of all of the entered GCPs, including their name, pixel coordinates,
ground coordinates, and the estimated error (in pixels) at each GCP based on the current rectification method.
Each GCP has a checkbox next to indicating whether or not that GCP is used for the rectification. This
provided you an easy way to remove GCPs from a rectification to see how they affect it.
Double-clicking an item in this list will cause the Zoomed View to recenter on the GCP and will fill in the
Ground Control Point Entry section with the pixel and ground coordinates of the selected GCP, allowing for
easy updating of GCP locations.
You can move the selection in the GCP list up and down using the Alt+Q and Alt+Z hot keys. These can help
facilitate quickly entering lots of GCPs without having to use the mouse.
If you simply want to shift an image, all that you need to do is press the Shift All button and specify the
adjustment to apply to each entered GCP.
Completing the Rectification Process
Global Mapper User's Manual
Once you have entered all of your ground control points (GCPs), press the OK button to complete the image
rectification. Depending on how you entered the dialog, the rectified image will now be in the view, will be
saved to a new rectified file, or you will start the rectification of the next selected image.
If you are repositioning a loaded file, you can press the Apply button to re-rectify the file with the updated
GCPs and see the results of your modifications.
Map GPS Coordinates - GPS Map Coordinates - GPSCoordinates Map 108