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LookFrom for Google Earth

You want to stand at:
Latitude: decimal degrees
Elevation: 0 meters (dont have the maths to offer otherwise)

You want to look:
Heading: degrees (North=0, -ve going to west (-90), +ve going to east (90))
Range: meters
Altitude: 0 degrees (horizontal, expanation)

Debug (output the values rather than KML)