private void ShowBluetoothStatus(object sender, BluetoothEventArgs e)
{
if (e.bolBluetoothConnected)
{
lblBluetoothConnection.Invoke((Action) delegate { lblBluetoothConnection.Text = "Verbunden mit Reach RS+"; });
picIconGrey.Invoke((Action) delegate { picIconGrey.Visible = false; });
picIconBlue.Invoke((Action) delegate { picIconBlue.Visible = true; });
}
if (e.bolDataAvailable && bytQualityOld == 0)
{
lblRealtimeAverage.Invoke((Action) delegate { lblRealtimeAverage.Text = "UTM Koordinaten: Echtzeit"; });
btnTimer.Invoke((Action) delegate { btnTimer.Enabled = true; });
}
}
public void ReceiveData()
{
// Get current path of "ReachConnectCE.exe" and check if file "mac.txt" exists (contains bluetooth MAC adress of Reach RS+)
string strCurrentDirectory = Path.GetDirectoryName(Assembly.GetExecutingAssembly().GetName().CodeBase);
if (!File.Exists(strCurrentDirectory + "\\mac.txt"))
{
MessageBox.Show("Die Datei \"mac.txt\" im Verzeichnis " + strCurrentDirectory + " wurde nicht gefunden. " +
"Bitte Datei anlegen mit folgendem Inhalt: Bluetooth MAC-Adresse des Reach RS+ Empfängers.",
"Lesefehler", MessageBoxButtons.OK, MessageBoxIcon.Hand, MessageBoxDefaultButton.Button1);
Application.Exit();
}
// Read bluetooth MAC adress from file "mac.txt" and store in strMAC
FileStream fs = new FileStream(strCurrentDirectory + "\\mac.txt", FileMode.Open);
StreamReader sr = new StreamReader(fs);
string strMAC = sr.ReadLine();
sr.Close();
DataEventArgs args = new DataEventArgs();
BluetoothEventArgs b = new BluetoothEventArgs();
// Initialize bluetooth stack
try
{
BluetoothRadio radio = BluetoothRadio.PrimaryRadio;
radio.Mode = RadioMode.Discoverable;
}
// Catch exeption if bluetooth radio not found
catch
{
MessageBox.Show("Der Bluetooth Empfänger wurde nicht gefunden. Bitte Bluetooth einschalten.", "Bluetooth Fehler", MessageBoxButtons.OK, MessageBoxIcon.Hand, MessageBoxDefaultButton.Button1);
Application.Exit();
}
// Establish bluetooth connection
BluetoothClient bcConn = new BluetoothClient();
do
{
try
{
bcConn.Connect(BluetoothAddress.Parse(strMAC), BluetoothService.SerialPort);
}
catch { }
}while (!bcConn.Connected);
// Update GUI once bluetooth connected
b.bolBluetoothConnected = true;
this.BluetoothStatus(this, b);
// Open bluetooth socket
NetworkStream stream = bcConn.GetStream();
byte[] bytReadBuffer = new byte[142];
double[] utmCoordinates = new double[4];
string strMessage, strLatitude, strLongitude, strHeight, strQuality;
double dblLatitude, dblLongitude;
while (true)
{
try
{
stream.Read(bytReadBuffer, 0, 142);
// Parse data from stream
strMessage = System.Text.Encoding.ASCII.GetString(bytReadBuffer, 0, 142);
strLatitude = strMessage.Substring(25, 13);
strLongitude = strMessage.Substring(40, 12);
strHeight = strMessage.Substring(55, 9);
strQuality = strMessage.Substring(67, 1);
if (strQuality == "1" || strQuality == "2" || strQuality == "5")
{
// Update GUI once data is received
b.bolDataAvailable = true;
this.BluetoothStatus(this, b);
dblLatitude = Convert.ToDouble(strLatitude);
dblLongitude = Convert.ToDouble(strLongitude);
args.dblHeight = Convert.ToDouble(strHeight);
args.bytQuality = Convert.ToByte(strQuality);
// Convert latitude/longitude to UTM by using UTMConverter class. UTMConverter is a static class
// which cannot be instanciated. latlontoUTM method expects two values (latitude and lontitude) and
// returns array with 4 double values: [0] = UTM east, [1] = UTM north, [2] = zone, [3] = hemisphere
utmCoordinates = UTMConverter.latlontoUTM(dblLatitude, dblLongitude);
args.dblEast = utmCoordinates[0];
args.dblNorth = utmCoordinates[1];
args.strZone = utmCoordinates[2].ToString();
if (utmCoordinates[3] == 0)
{
args.strHemisphere = "Süd";
}
else
{
args.strHemisphere = "Nord";
}
this.NewDataAvailable(this, args);
}
}
catch { }
}
}
