org.placelab.demo.virtualgps
Class NMEAFactory

java.lang.Object
  org.placelab.demo.virtualgps.NMEAFactory

public class NMEAFactory

extends java.lang.Object

Builds NMEA Sentences. We only need to support one sentence (GGA) to fool MS MapPoint. More sentences may come...

Field Summary

static java.lang.String

prefix

Constructor Summary

NMEAFactory()

Method Summary

static java.lang.String	GGA(java.lang.String hhmmss, java.lang.String lat, java.lang.String latDir, java.lang.String lon, java.lang.String lonDir, int fixQuality, int numSats, java.lang.String hdop, java.lang.String altitude, java.lang.String altitudeUnit, java.lang.String heightOfGeoid, java.lang.String heightOfGeoidUnit)
static java.lang.String	GLL(java.lang.String lat, java.lang.String latDir, java.lang.String lon, java.lang.String lonDir, java.lang.String hhmmss, java.lang.String active)
static void	main(java.lang.String[] args) TESTS
static java.lang.String	RMC(java.lang.String hhmmss, java.lang.String validity, java.lang.String lat, java.lang.String latDir, java.lang.String lon, java.lang.String lonDir, java.lang.String knots, java.lang.String trueCourse, java.lang.String ddmmyy, java.lang.String variation, java.lang.String dir) Return something reasonable but in no way accurate.
static java.lang.String	toLatNMEA(double n)
static java.lang.String	toLonNMEA(double n)
static java.lang.String	twoDigitFormat(int n)

Methods inherited from class java.lang.Object

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

Field Detail

prefix

public static java.lang.String prefix

Constructor Detail

NMEAFactory

public NMEAFactory()

Method Detail

GGA

public static java.lang.String GGA(java.lang.String hhmmss,
                                   java.lang.String lat,
                                   java.lang.String latDir,
                                   java.lang.String lon,
                                   java.lang.String lonDir,
                                   int fixQuality,
                                   int numSats,
                                   java.lang.String hdop,
                                   java.lang.String altitude,
                                   java.lang.String altitudeUnit,
                                   java.lang.String heightOfGeoid,
                                   java.lang.String heightOfGeoidUnit)

Parameters:

hhmmss - seconds UTC of position: HHMMSS.ss

lat - latitude

latDir - N or S

lon - longitude

lonDir - E or W

fixQuality - 0 (invalid), 1 (gps fix), 2 (dgps fix)

numSats - number of satellites

hdop - horizontal dilution of precision

altitude - meters above mean sea level

altitudeUnit - should be M

heightOfGeoid - height of geoid above WGS84 ellipsoid

heightOfGeoidUnit - should be M

GLL

public static java.lang.String GLL(java.lang.String lat,
                                   java.lang.String latDir,
                                   java.lang.String lon,
                                   java.lang.String lonDir,
                                   java.lang.String hhmmss,
                                   java.lang.String active)

RMC

public static java.lang.String RMC(java.lang.String hhmmss,
                                   java.lang.String validity,
                                   java.lang.String lat,
                                   java.lang.String latDir,
                                   java.lang.String lon,
                                   java.lang.String lonDir,
                                   java.lang.String knots,
                                   java.lang.String trueCourse,
                                   java.lang.String ddmmyy,
                                   java.lang.String variation,
                                   java.lang.String dir)

Return something reasonable but in no way accurate.

Returns:

sensible GSV string

toLatNMEA

public static java.lang.String toLatNMEA(double n)

toLonNMEA

public static java.lang.String toLonNMEA(double n)

twoDigitFormat

public static java.lang.String twoDigitFormat(int n)

main

public static void main(java.lang.String[] args)

TESTS