//The method called to retrieve data.
public void retrieveData()
{
//Telementary update declared.
TelementryUpdate telementryUpdate = new TelementryUpdate();
//Data is starting to be recieved.
startRetrievingData = true;
//Loop until recieving data is true.
while (startRetrievingData)
{
//create a character buffer.
//find the number of bites being read.
byte[] buffer = new byte[256];
int num_bytes = stream.Read(buffer, 0, 256);
//Get the ASCII data into a string variable.
string ToBeDeSerialized = Encoding.ASCII.GetString(buffer, 0, num_bytes);
//create a new serializer.
JavaScriptSerializer serialize = new JavaScriptSerializer();
//set the telementry update object's variables the the deserialized data.
telementryUpdate = serialize.Deserialize <TelementryUpdate>(ToBeDeSerialized);
//Invoked the recieving event is the null contitional operator allows it (?)
Recieving?.Invoke(telementryUpdate);
}
}
private void getControlUpdates(TelementryUpdate telementryUpdate)
{
//Will need to be involked if it is required
//This recalles the function
if (this.InvokeRequired)
{
this.Invoke(new RecievedDataHandler(getControlUpdates), new object[] { telementryUpdate });
}
else
{
//Updates the text boxes describing the current conditions of the plane
//Math.round is used to round up the doubles to a whole number to make it easier
//to enterperate.
txtAltitude.Text = Math.Round(telementryUpdate.altitude).ToString() + " ft";
txtAirspeed.Text = Math.Round(telementryUpdate.speed).ToString() + " Knts";
txtVerticalSpeed.Text = Math.Round(telementryUpdate.verticalSpeed).ToString() + " Fpm";
txtThrottle.Text = telementryUpdate.throttle.ToString() + "%";
txtPitchAngle.Text = Math.Round(telementryUpdate.pitch).ToString() + "°";
txtElevatorPitch.Text = telementryUpdate.elevatorPitch.ToString() + "°";
//Updates the data grid's cellswith the same values
DataGridViewRow row = (DataGridViewRow)dgvDataRecieved.Rows[0].Clone();
row.Cells[0].Value = telementryUpdate.speed.ToString();
row.Cells[1].Value = telementryUpdate.verticalSpeed.ToString();
row.Cells[2].Value = telementryUpdate.pitch.ToString();
row.Cells[3].Value = telementryUpdate.altitude.ToString();
row.Cells[4].Value = telementryUpdate.throttle.ToString();
row.Cells[5].Value = telementryUpdate.elevatorPitch.ToString();
row.Cells[6].Value = telementryUpdate.warningCode.ToString();
dgvDataRecieved.Rows.Insert(0, row);
if (dgvDataRecieved.Rows.Count > 10)
{
dgvDataRecieved.Rows.RemoveAt(9);
}
//Performs warning checks
//depending on what kidn of warning code it is
//different text warnings are given
if (telementryUpdate.warningCode == 1)
{
lblWarning.Text = "Warning: Too low terrain";
}
else if (telementryUpdate.warningCode == 2)
{
lblWarning.Text = "Warning: Stall risk";
}
else
{
lblWarning.Text = "No warning";
}
}
}