Net::GPSD3::Return::TPV - Net::GPSD3 Return TPV Object
printf "Time: %s, Lat: %s, Lon: %s\n", $object->time, $object->lat, $object->lon;
Provides a Perl object interface to the Time-Velocity-Position (TVP) object returned by the GPSD daemon.
Example JSON objects:
{ "class":"TPV", "tag":"MID2", "device":"/dev/ttyUSB0", "time":1253593085.470, "ept":0.005, "lat":38.88945123, "lon":-77.03522143, "track":171.7249, "speed":0.467, "mode":2 } { "class":"TPV", "tag":"MID2", "device":"/dev/ttyUSB0", "time":1253593667.430, "ept":0.005, "lat":38.88945123, "lon":-77.03522143, "alt":146.911, "track":180.0000, "speed":0.194, "climb":-0.157, "mode":3 }
{ "class":"TPV", "tag":"0x0106", "device":"/dev/cuaU0", "time":"2011-03-20T06:51:59.12Z", "ept":0.005, "lat":37.371427205, "lon":-122.015179890, "alt":25.789, "epx":1.926, "epy":1.808, "epv":6.497, "track":0.0000, "speed":0.000, "climb":0.000, "eps":3.85, "mode":3 }
Returns the object class
Returns the JSON string
Return the parent Net::GPSD object
Name of originating device.
Type tag associated with this GPS sentence; from an NMEA device this is just the NMEA sentence type.
NMEA mode: %d, 0=no mode value yet seen, 1=no fix, 2=2D, 3=3D.
Seconds since the Unix epoch, UTC. The value may have a fractional part of up to .01sec precision.
Note: In 2.96 (protocol 3.4) the TPV->time format changed from unix epoch to W3C, but this method hides that from the user.
W3C formated timestamp value either directly from the protocol >= 3.4 or calculated < 3.4. The value may have a fractional part of up to .01sec precision.
Note: I expect that in protocol 3.5 the value will be passed directly as TPV->timestamp
Returns a DateTime object
Latitude in degrees: +/- signifies West/East
Longitude in degrees: +/- signifies North/South.
Altitude in meters.
Speed over ground, meters per second.
Course over ground, degrees from true north.
Climb (postive) or sink (negative) rate, meters per second.
Estimated timestamp error (%f, seconds, 95% confidence).
Latitude error estimate in meters, 95% confidence.
Estimated vertical error in meters, 95% confidence.
Speed error estimate in meters/sec, 95% confifdence.
Direction error estinmate in degrees, 95% confifdence.
Climb/sink error estinmate in meters/sec, 95% confifdence.
Returns a GPS::Point Object
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Michael R. Davis CPAN ID: MRDVT STOP, LLC domain=>michaelrdavis,tld=>com,account=>perl http://www.stopllc.com/
This program is free software licensed under the...
The BSD License
The full text of the license can be found in the LICENSE file included with this module.
Net::GPSD3, GPS::Point, Net::GPSD3::Return::Unknown
To install Net::GPSD3, copy and paste the appropriate command in to your terminal.
cpanm
cpanm Net::GPSD3
CPAN shell
perl -MCPAN -e shell install Net::GPSD3
For more information on module installation, please visit the detailed CPAN module installation guide.