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authorChris Kuethe <chris.kuethe@gmail.com>2008-12-29 16:06:06 +0000
committerChris Kuethe <chris.kuethe@gmail.com>2008-12-29 16:06:06 +0000
commitf18a568fe26a30c9557e4133152e642383583f47 (patch)
treec7a24cd3d6a3904e62b979041451f9fa72a5e148 /contrib/README
parent4a110dd2877bb378f8839f4922089e781e27d631 (diff)
downloadgpsd-f18a568fe26a30c9557e4133152e642383583f47.tar.gz
add and document lla2ecef
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@@ -47,3 +47,7 @@ horizon, 13 are tracking, and at least 12 are actually used in a solution.
gpsdlcdd.c is a lcdproc client for gpsd that turns your car computer
into a rudimentary GPS receiver (provided you have at least a 4x40 LCD
screen plugged in and configured to work with lcdproc).
+
+lla2ecef transforms latitude/longitude/altitude (aka north-east-up or local
+tangential plane) coordinates into the earth-centered-earth-fixed frame. If
+invoked as "ecef2lla" it will transform coordinates in the opposite manner.