public void ReadGPVTG(string[] strGPS, GPVTG gpvtg)
{
gpvtg.TNGroundAzimuth = string.IsNullOrEmpty(strGPS[1]) ? 0 : Convert.ToDouble(strGPS[1]);
gpvtg.MNGroundAzimuth = string.IsNullOrEmpty(strGPS[3]) ? 0 : Convert.ToDouble(strGPS[3]);
gpvtg.GroundSpeed = string.IsNullOrEmpty(strGPS[5]) ? 0 : Convert.ToDouble(strGPS[5]);
gpvtg.GroundSpeedKilometer = string.IsNullOrEmpty(strGPS[7]) ? 0 : Convert.ToDouble(strGPS[7]);
gpvtg.ModeIndication = string.IsNullOrEmpty(strGPS[9]) ? ' ' : Convert.ToChar(strGPS[9]);
}
//private static GpsTranslation;
private void DataReceived(object sender, SerialDataReceivedEventArgs e)
{
string strRecv;
string[] strGPS;
strRecv = serialPort.ReadLine();
int index = strRecv.IndexOf('$');
if (index == -1)
{
return;
}
else
{
strRecv.Remove(0, index);
}
strGPS = strRecv.Replace('*', ',').Split(',');
GpsProcess gpsProcess = new GpsProcess();
switch (strGPS[0])
{
case "$GPGGA": { //GPS定位信息
if (strGPS.Length < 13)
{
return;
}
GPGGA gpgga = new GPGGA();
gpsProcess.ReadGPGGA(strGPS, gpgga);
BeginInvoke(new MethodInvoker(delegate()
{
gpsProcess.WriteGPGGA(gpgga);
xy = GpsTranslation.wgs2bd(gpsProcess.Latitude, gpsProcess.Longitude);
Jd.Text = "经度：" + xy[0].ToString(); //lon
Wd.Text = "纬度：" + xy[1].ToString(); //lat
}));
break;
}
case "$GPVTG": { //地面速度信息
if (strGPS.Length < 10)
{
return;
}
GPVTG gpvtg = new GPVTG();
gpsProcess.ReadGPVTG(strGPS, gpvtg);
BeginInvoke(new MethodInvoker(delegate() { speed.Text = "速度：" + gpsProcess.WriteGPVTG(gpvtg); }));
break;
}
default: break;
}
}
/*
* public void WriteGPRMC(GPRMC gprmc)
* {
* label_wd.Text = gprmc.Longitude.ToString() + gprmc.LongitudeEW;
* label_jd.Text = gprmc.Latitude.ToString() + gprmc.LatitudeNS;
*
* label_dmhx.Text = gprmc.GroundAzimuth.ToString();
* label_dmsl.Text = gprmc.GroundSpeed.ToString();
* label_cpj.Text = gprmc.DeclinationAngle.ToString();
* label_utcrq.Text = gprmc.UTCDate.ToLongDateString();
* label_mszs.Text = gprmc.ModeIndication.ToString();
*
* if (gprmc.DeclinationDirection.ToString() == "E")//E（东）或W（西）
* label_cpjfx.Text = "东";
* else if (gprmc.DeclinationDirection.ToString() == "W")
* label_cpjfx.Text = "西";
* else
* label_cpjfx.Text = "";
*
* if (gprmc.ModeIndication.ToString() == "A")//（仅NMEA0183 3.00版本输出，A=自主定位，D=差分，E=估算，N=数据无效）
* label_mszs.Text = "自主定位";
* else if (gprmc.ModeIndication.ToString() == "D")
* label_mszs.Text = "差分";
* else if (gprmc.ModeIndication.ToString() == "E")
* label_mszs.Text = "估算";
* else if (gprmc.ModeIndication.ToString() == "N")
* label_mszs.Text = "数据无效";
* else
* label_mszs.Text = "";
*
* if (gprmc.LocationStatus.ToString() == "A")//A=有效定位，V=无效定位
* label_dwzt.Text = "有效定位";
* else if (gprmc.LocationStatus.ToString() == "V")
* label_dwzt.Text = "无效定位";
* else
* label_dwzt.Text = "";
* }
* public void WriteGPGSA(GPGSA gpgsa)
* {
*
* label_sywxbh.Text = gpgsa.PRN1.ToString() + "|" + gpgsa.PRN2.ToString() + "|" +
* gpgsa.PRN3.ToString() + "|" + gpgsa.PRN4.ToString() + "|" +
* gpgsa.PRN5.ToString() + "|" + gpgsa.PRN6.ToString() + "|" +
* gpgsa.PRN7.ToString() + "|" + gpgsa.PRN8.ToString() + "|" +
* gpgsa.PRN9.ToString() + "|" + gpgsa.PRN10.ToString() + "|" +
* gpgsa.PRN11.ToString() + "|" + gpgsa.PRN12.ToString();
*
* label_vdop_yz.Text = gpgsa.VDOP.ToString();
* label_hdop_yz.Text = gpgsa.HDOP.ToString();
* label_pdop_yz.Text = gpgsa.PDOP.ToString();
* //label_sywxbh.Text = gpgsa;
*
* if (gpgsa.Location == '1')
* labe_dwxs.Text = "未定位";
* else if (gpgsa.Location == '2')
* labe_dwxs.Text = "二维定位";
* else if (gpgsa.Location == '3')
* labe_dwxs.Text = "三维定位";
* else
* labe_dwxs.Text = "";
*
* if (gpgsa.Mode == 'M')
* label_ms.Text = "手动";
* else if (gpgsa.Mode == 'M')
* label_ms.Text = "自动";
* else
* label_ms.Text = "";
*
* }*/
public string WriteGPVTG(GPVTG gpvtg)
{/*
* if (gpvtg.ModeIndication.ToString() == "A")
* label_mszs1.Text = "自主定位";
* else if (gpvtg.ModeIndication.ToString() == "D")
* label_mszs1.Text = "差分";
* else if (gpvtg.ModeIndication.ToString() == "E")
* label_mszs1.Text = "估算";
* else if (gpvtg.ModeIndication.ToString() == "N")
* label_mszs1.Text = "数据无效";
* else
* label_mszs1.Text = "";
*
* label_dmsl2.Text = gpvtg.GroundSpeedKilometer.ToString();
* label_dmsl1.Text = gpvtg.GroundSpeed.ToString();
* label_dmhx2.Text = gpvtg.MNGroundAzimuth.ToString();
* label_dmhx1.Text = gpvtg.TNGroundAzimuth.ToString();
*/
return(gpvtg.GroundSpeed.ToString());
}/*
