lejos.hardware.gps

Class VTGSentence

java.lang.Object

lejos.hardware.gps.NMEASentence

lejos.hardware.gps.VTGSentence

public class VTGSentence
extends NMEASentence

VTGSentence is a Class designed to manage VTG Sentences from a NMEA GPS Receiver $GPVTG Track Made Good and Ground Speed. eg1. $GPVTG,360.0,T,348.7,M,000.0,N,000.0,K*43 eg2. $GPVTG,054.7,T,034.4,M,005.5,N,010.2,K*41 054.7,T True course made good over ground, degrees 034.4,M Magnetic course made good over ground, degrees 005.5,N Ground speed, N=Knots 010.2,K Ground speed, K=Kilometers per hour eg3. for NMEA 0183 version 3.00 active the Mode indicator field is added at the end $GPVTG,054.7,T,034.4,M,005.5,N,010.2,K,A*53 A Mode indicator (A=Autonomous, D=Differential, E=Estimated, N=Data not valid)

Author:

Juan Antonio Brenha Moral

Field Summary

Fields

Modifier and Type	Field and Description
static java.lang.String	HEADER

Fields inherited from class lejos.hardware.gps.NMEASentence

LATITUDE, LONGITUDE

Constructor Summary

Constructors

Constructor and Description
VTGSentence()

Method Summary

Modifier and Type	Method and Description
java.lang.String	getHeader() Returns the NMEA header for this sentence.
float	getSpeed() Get Speed in Kilometers
float	getTrueCourse() Get true course, in degrees.
void	parse(java.lang.String sentence) Parse a RMC Sentence $GPVTG,054.7,T,034.4,M,005.5,N,010.2,K,A*53

Methods inherited from class lejos.hardware.gps.NMEASentence

degreesMinToDegrees, isNumeric

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

HEADER

public static final java.lang.String HEADER

See Also:

Constant Field Values

Constructor Detail

VTGSentence

public VTGSentence()

Method Detail

getHeader

public java.lang.String getHeader()

Returns the NMEA header for this sentence.

Specified by:

getHeader in class NMEASentence

Returns:

The NMEA header string ($GPGGA, $GPVTG, etc...)

getTrueCourse

public float getTrueCourse()

Get true course, in degrees.

Returns:

the true course in degrees 0.0 to 360.0

getSpeed

public float getSpeed()

Get Speed in Kilometers

Returns:

the speed

parse

public void parse(java.lang.String sentence)

Parse a RMC Sentence $GPVTG,054.7,T,034.4,M,005.5,N,010.2,K,A*53

Specified by:

parse in class NMEASentence