private void Fix2CenterButton_Click(object sender, EventArgs e)
{
// East declination is positive; west is negative
// True (map) Heading = Mag Bearing + Declination
// Mag Hdg = True Brg - Declination
// VOR headings are always magnetic (Hdg)
if (FixListDataGridView.SelectedRows.Count > 0)
{
string FixText = string.Empty;
double[] Coords;
double Lat = Convert.ToDouble(FixListDataGridView.SelectedRows[0].Cells[1].Value);
double Lon = Convert.ToDouble(FixListDataGridView.SelectedRows[0].Cells[2].Value);
// VORs are in bearings and need no adjustment
//double MagVar = Convert.ToDouble(MagVarTextBox.Text);
if (FixOffsetCheckBox.Checked)
{
double Dist = Convert.ToDouble(FixDistTextBox.Text);
double Brg = Convert.ToDouble(FixBrgNUD.Value);
//if (FixListDataGridView.SelectedRows[0].Cells[3].Value != null)
//MagVar = Convert.ToDouble(FixListDataGridView.SelectedRows[0].Cells[3].Value);
Coords = LatLongCalc.Destination(Lat, Lon, Dist, Brg, 'N');
Lat = Coords[0]; Lon = Coords[1];
FixText = String.Format("{0:000}", FixBrgNUD.Value) +
String.Format("{0:000.0}", Convert.ToDouble(FixDistTextBox.Text));
}
CenterLatitudeTextBox.Text = Conversions.Degrees2SCT(Lat, true);
CenterLat = Lat;
CenterLongitudeTextBox.Text = Conversions.Degrees2SCT(Lon, false);
CenterLon = Lon;
//MagVarTextBox.Text = MagVar.ToString();
CenterFixTextBox.Text = FixListDataGridView.SelectedRows[0].Cells[0].Value.ToString() + FixText;
UpdateStats();
}
}
private void InsertCoordsButton_Click(object sender, EventArgs e)
{
if ((CenterLat == -1) || (CenterLon == -1))
{
SCTcommon.SendMessage("First select the center point of the arc.");
return;
}
if ((CalcDistanceTextBox.TextLength == 0) || (Convert.ToDouble(CalcDistanceTextBox.Text) < 1))
{
SCTcommon.SendMessage("Radius of arc must be at least 1 NM");
return;
}
else
{
double[] Coords;
double CenterLat = Conversions.DMS2Degrees(CenterLatitudeTextBox.Text);
double CenterLon = Conversions.DMS2Degrees(CenterLongitudeTextBox.Text);
double Dist = Convert.ToDouble(CalcDistanceTextBox.Text);
double BrgStart = Convert.ToDouble(StartRadialNUD.Value);
double BrgEnd = Convert.ToDouble(EndRadialNUD.Value);
double MagVar = Convert.ToDouble(MagVarTextBox.Text);
double Lat; double Lon;
if (CircleCheckBox.Checked)
{
Coords = LatLongCalc.Destination(CenterLat, CenterLon, Dist, 90, 'N');
Lat = Coords[0];
Lon = Coords[1];
StartLatitudeTextBox.Text = Conversions.Degrees2SCT(Lat, true);
StartLongitudeTextBox.Text = Conversions.Degrees2SCT(Lon, false);
StartLat = Lat;
StartLon = Lon;
EndLatitudeTextBox.Text = Conversions.Degrees2SCT(Lat, true);
EndLongitudeTextBox.Text = Conversions.Degrees2SCT(Lon, false);
EndLat = Lat;
EndLon = Lon;
}
else
{
if (MagBrgCheckBox.Checked == true)
{
BrgStart -= MagVar; BrgEnd -= MagVar;
}
Coords = LatLongCalc.Destination(CenterLat, CenterLon, Dist, BrgStart, 'N');
Lat = Coords[0];
Lon = Coords[1];
StartLatitudeTextBox.Text = Conversions.Degrees2SCT(Lat, true);
StartLongitudeTextBox.Text = Conversions.Degrees2SCT(Lon, false);
StartLat = Lat;
StartLon = Lon;
Coords = LatLongCalc.Destination(CenterLat, CenterLon, Dist, BrgEnd, 'N');
Lat = Coords[0];
Lon = Coords[1];
EndLatitudeTextBox.Text = Conversions.Degrees2SCT(Lat, true);
EndLongitudeTextBox.Text = Conversions.Degrees2SCT(Lon, false);
EndLat = Lat;
EndLon = Lon;
}
UpdateStats();
}
}
private void FixToEndButton_Click(object sender, EventArgs e)
{
if (FixListDataGridView.SelectedRows.Count > 0)
{
string FixText = string.Empty;
double[] Coords;
double Lat = Convert.ToDouble(FixListDataGridView.SelectedRows[0].Cells[1].Value);
double Lon = Convert.ToDouble(FixListDataGridView.SelectedRows[0].Cells[2].Value);
// VORs are in bearings and need no adjustment
//double MagVar = Convert.ToDouble(MagVarTextBox.Text);
if (FixOffsetCheckBox.Checked)
{
double Dist = Convert.ToDouble(FixDistTextBox.Text);
double Brg = Convert.ToDouble(FixBrgNUD.Value);
//if (FixListDataGridView.SelectedRows[0].Cells[3].Value != null)
//MagVar = Convert.ToDouble(FixListDataGridView.SelectedRows[0].Cells[3].Value);
Coords = LatLongCalc.Destination(Lat, Lon, Dist, Brg, 'N');
Lat = Coords[0]; Lon = Coords[1];
FixText = String.Format("{0:000}", FixBrgNUD.Value) +
String.Format("{0:000.0}", Convert.ToDouble(FixDistTextBox.Text));
}
EndLatitudeTextBox.Text = Conversions.Degrees2SCT(Lat, true);
EndLat = Lat;
EndLongitudeTextBox.Text = Conversions.Degrees2SCT(Lon, false);
EndLon = Lon;
//MagVarTextBox.Text = MagVar.ToString();
EndFixTextBox.Text = FixListDataGridView.SelectedRows[0].Cells[0].Value.ToString() + FixText;
UpdateStats();
}
}
private void CalcEndButton_Click(object sender, EventArgs e)
{
/// Summary
/// "West is Best, East is least"
/// To calculate true bearing from compass bearing (and known deviation and variation):
/// Compass bearing +deviation = magnetic bearing
/// Magnetic bearing + variation = true bearing
/// To calculate compass bearing from true bearing(and known deviation and variation):
/// True bearing -variation = Magnetic bearing
/// West Variations are negative
/// In the US, the agonic line is roughly along the Mississippi river
/// In aviation, maps, GPS and runways use true bearings
double CalcTrueBrg = CalcBrg;
if (MagBrgCheckBox.Checked)
{
CalcTrueBrg -= CalcMag;
}
double[] CalcLocation =
LatLongCalc.Destination(StartLat, StartLon, DistanceAdjust(CalcDist, CalcType), CalcTrueBrg, CalcType);
EndLat = CalcLocation[0];
EndLon = CalcLocation[1];
EndLatitudeTextBox.Text = Conversions.Degrees2SCT(EndLat, true);
EndLongitudeTextBox.Text = Conversions.Degrees2SCT(EndLon, false);
EndFixTextBox.Text = string.Empty;
UpdateCopyButtons();
}
private void ImportFixToHold()
{
// East declination is positive; west is negative
// True (map) Heading = Mag Bearing + Declination
// Mag Hdg = True Brg - Declination
// VOR headings are always magnetic (Hdg)
if (FixListDataGridView.SelectedRows.Count > 0)
{
string FixText = string.Empty;
double[] Coords;
double Lat = Convert.ToDouble(FixListDataGridView.SelectedRows[0].Cells[1].Value);
double Lon = Convert.ToDouble(FixListDataGridView.SelectedRows[0].Cells[2].Value);
// VORs are in bearings and need no adjustment
//double MagVar = Convert.ToDouble(MagVarTextBox.Text);
if (FixOffsetCheckBox.Checked)
{
double Dist = Convert.ToDouble(FixOffsetDistTextBox.Text);
double Brg = Convert.ToDouble(FixOffsetBrgNUD.Value);
//if (FixListDataGridView.SelectedRows[0].Cells[3].Value != null)
//MagVar = Convert.ToDouble(FixListDataGridView.SelectedRows[0].Cells[3].Value);
Coords = LatLongCalc.Destination(Lat, Lon, Dist, Brg, 'N');
Lat = Coords[0]; Lon = Coords[1];
FixText = String.Format("{0:000}", FixOffsetBrgNUD.Value) +
String.Format("{0:000.0}", Convert.ToDouble(FixOffsetDistTextBox.Text));
}
HoldLatitudeTextBox.Text = Conversions.Degrees2SCT(Lat, true);
HoldLat = Lat;
HoldLongitudeTextBox.Text = Conversions.Degrees2SCT(Lon, false);
HoldLon = Lon;
//MagVarTextBox.Text = MagVar.ToString();
HoldFixTextBox.Text = FixListDataGridView.SelectedRows[0].Cells[0].Value.ToString() + FixText;
AddFixLabelCheckBox.Enabled = AddFixSymbolCheckBox.Enabled = (HoldFixTextBox.TextLength != 0);
}
}
private void FixEndCoordButton_Click(object sender, EventArgs e)
{
double[] coords =
LatLongCalc.Destination(CenterLat, CenterLon, ArcRadius, Convert.ToDouble(EndRadialNUD.Value), 'N');
EndLat = coords[0];
EndLon = coords[1];
EndLatitudeTextBox.Text = Conversions.Degrees2SCT(EndLat, true);
EndLongitudeTextBox.Text = Conversions.Degrees2SCT(EndLon, false);
UpdateStats();
}
private void RadBrgStartButton_Click(object sender, EventArgs e)
{
double[] coords = new double[2];
if ((CenterLat != -1) && (CenterLon != -1))
{
coords = LatLongCalc.Destination(CenterLat, CenterLon, ArcRadius, Convert.ToDouble(StartRadialNUD.Value), 'N');
StartLat = coords[0];
StartLon = coords[1];
StartLatitudeTextBox.Text = Conversions.Degrees2SCT(StartLat, true);
StartLongitudeTextBox.Text = Conversions.Degrees2SCT(StartLon, false);
}
}
private string BuildArcString(double StartBrg, double EndBrg, double StartLat, double StartLon)
{
string Lat0 = string.Empty; string Lon0 = string.Empty; string Lat1; string Lon1;
string output = string.Empty;
double[] Coords;
// Make sure we aren't crossing 360...
if ((StartBrg + Math.Abs(EndBrg - StartBrg)) > 360)
{
for (double i = StartBrg; i < 360; i++)
{
Coords = LatLongCalc.Destination(StartLat, StartLon, ArcRadius, i, 'N');
Lat1 = Conversions.Degrees2SCT(Coords[0], true);
Lon1 = Conversions.Degrees2SCT(Coords[1], false);
output += OutputText(Lat0, Lon0, Lat1, Lon1);
Lat0 = Lat1; Lon0 = Lon1;
}
for (double i = 1; i < EndBrg; i++)
{
Coords = LatLongCalc.Destination(StartLat, StartLon, ArcRadius, i, 'N');
Lat1 = Conversions.Degrees2SCT(Coords[0], true);
Lon1 = Conversions.Degrees2SCT(Coords[1], false);
output += OutputText(Lat0, Lon0, Lat1, Lon1);
Lat0 = Lat1; Lon0 = Lon1;
}
}
else
{
for (double i = StartBrg; i < EndBrg; i++)
{
Coords = LatLongCalc.Destination(StartLat, StartLon, ArcRadius, i, 'N');
Lat1 = Conversions.Degrees2SCT(Coords[0], true);
Lon1 = Conversions.Degrees2SCT(Coords[1], false);
output += OutputText(Lat0, Lon0, Lat1, Lon1);
Lat0 = Lat1; Lon0 = Lon1;
}
}
// Draw last segment
Coords = LatLongCalc.Destination(StartLat, StartLon, ArcRadius, EndBrg, 'N');
PasteLat = Coords[0]; PasteLon = Coords[1];
Lat1 = Conversions.Degrees2SCT(Coords[0], true);
Lon1 = Conversions.Degrees2SCT(Coords[1], false);
output += OutputText(Lat0, Lon0, Lat1, Lon1);
return(output);
}
private void CenterFromChord()
{
// The center is perpendicular to the midpoint of the start/end chord
// Since I'm always turning to the right, perpendicular is always +90
double Lat0 = (StartLat + EndLat) / 2.0;
double Lon0 = (StartLon + EndLon) / 2.0;
double Brg = (LatLongCalc.Bearing(StartLat, StartLon, EndLat, EndLon) + 90) % 360;
double[] Coords = LatLongCalc.Destination(Lat0, Lon0, RadiusFromChordArc(), Brg, 'N');
CenterLat = Coords[0]; CenterLon = Coords[1];
CenterLatitudeTextBox.Text = Conversions.Degrees2SCT(CenterLat, true);
CenterLongitudeTextBox.Text = Conversions.Degrees2SCT(CenterLon, false);
CenterFixTextBox.Text = "<calculated from chord>";
StartBrg = (LatLongCalc.Bearing(CenterLat, CenterLon, StartLat, StartLon) + 90) % 360;
StartRadialNUD.Value = (int)StartBrg;
EndBrg = (LatLongCalc.Bearing(CenterLat, CenterLon, EndLat, EndLon) + 90) % 360;
EndRadialNUD.Value = (int)EndBrg;
}
private string BuildArcString()
{
string Lat0 = string.Empty; string Lon0 = string.Empty; string Lat1; string Lon1;
string output = string.Empty;
double[] Coords;
if (CircleCheckBox.Checked)
{
StartBrg = 0; EndBrg = 360;
}
// Make sure we aren't crossing 360...
if ((StartBrg + (EndBrg - StartBrg)) > 360)
{
for (double i = StartBrg; i < 360; i++)
{
Coords = LatLongCalc.Destination(StartLat, StartLon, ArcRadius, i, 'N');
Lat1 = Conversions.Degrees2SCT(Coords[0], true);
Lon1 = Conversions.Degrees2SCT(Coords[1], false);
output += OutputText(Lat0, Lon0, Lat1, Lon1);
Lat0 = Lat1; Lon0 = Lon1;
}
for (double i = 1; i < EndBrg; i++)
{
Coords = LatLongCalc.Destination(StartLat, StartLon, ArcRadius, i, 'N');
Lat1 = Conversions.Degrees2SCT(Coords[0], true);
Lon1 = Conversions.Degrees2SCT(Coords[1], false);
output += OutputText(Lat0, Lon0, Lat1, Lon1);
Lat0 = Lat1; Lon0 = Lon1;
}
}
else
{
for (double i = StartBrg; i < EndBrg; i++)
{
Coords = LatLongCalc.Destination(StartLat, StartLon, ArcRadius, i, 'N');
Lat1 = Conversions.Degrees2SCT(Coords[0], true);
Lon1 = Conversions.Degrees2SCT(Coords[1], false);
output += OutputText(Lat0, Lon0, Lat1, Lon1);
Lat0 = Lat1; Lon0 = Lon1;
}
}
return(output);
}
private string BuildRaceTrack()
{
string output = string.Empty;
// Step 1 - build leg away from hold fix
double StartLat = HoldLat;
double StartLon = HoldLon;
double StartBrg; double EndBrg;
double EndLat; double EndLon; double[] Coords;
string Lat0; string Lon0; string Lat1; string Lon1;
double OutTrack = Track;
if (InboundTrackRadioButton.Checked)
{
OutTrack = Track + 540 % 360; // Reverse track to outbnd
}
Coords = LatLongCalc.Destination(StartLat, StartLon, LegLnthDist, OutTrack, 'N');
EndLat = Coords[0]; EndLon = Coords[1];
Lat0 = Conversions.Degrees2SCT(PasteLat, true);
Lon0 = Conversions.Degrees2SCT(PasteLon, false);
Lat1 = Conversions.Degrees2SCT(EndLat, true);
Lon1 = Conversions.Degrees2SCT(EndLon, false);
output += OutputText(Lat0, Lon0, Lat1, Lon1);
// Step 2 - Enter first turn
StartLat = EndLat; StartLon = EndLon; // This is start of turn
if (TurnRight)
{
StartBrg = (OutTrack + 270) % 360;
EndBrg = (OutTrack + 90) % 360;
}
else
{
EndBrg = (OutTrack + 270) % 360;
StartBrg = (OutTrack + 90) % 360;
}
Coords = LatLongCalc.Destination(StartLat, StartLon, ArcRadius, EndBrg, 'N');
double CenterLat = Coords[0]; double CenterLon = Coords[1]; // Center of arc
output += BuildArcString(StartBrg, EndBrg, CenterLat, CenterLon); // Build Arc 1
// Step 3 - Return leg
// Need to close the end of arc with next line
Coords = LatLongCalc.Destination(StartLat, StartLon, ArcRadius * 2, EndBrg, 'N');
StartLat = Coords[0]; StartLon = Coords[1];
Lat0 = Conversions.Degrees2SCT(PasteLat, true);
Lon0 = Conversions.Degrees2SCT(PasteLon, false);
Lat1 = Conversions.Degrees2SCT(StartLat, true);
Lon1 = Conversions.Degrees2SCT(StartLon, false);
output += OutputText(Lat0, Lon0, Lat1, Lon1);
// Now draw the leg line
double InTrack = (OutTrack + 180) % 360;
Coords = LatLongCalc.Destination(StartLat, StartLon, LegLnthDist, InTrack, 'N');
EndLat = Coords[0]; EndLon = Coords[1];
Lat0 = Conversions.Degrees2SCT(StartLat, true);
Lon0 = Conversions.Degrees2SCT(StartLon, false);
Lat1 = Conversions.Degrees2SCT(EndLat, true);
Lon1 = Conversions.Degrees2SCT(EndLon, false);
output += OutputText(Lat0, Lon0, Lat1, Lon1);
// Step 4 - Return arc
if (TurnRight)
{
EndBrg = (OutTrack + 270) % 360;
StartBrg = (OutTrack + 90) % 360;
}
else
{
StartBrg = (OutTrack + 270) % 360;
EndBrg = (OutTrack + 90) % 360;
}
StartLat = EndLat; StartLon = EndLon;
Coords = LatLongCalc.Destination(StartLat, StartLon, ArcRadius, EndBrg, 'N');
CenterLat = Coords[0]; CenterLon = Coords[1];
output += BuildArcString(StartBrg, EndBrg, CenterLat, CenterLon);
if (DrawFixSymbol)
{
output += DrawFix_Symbol();
}
if (DrawFixLabel)
{
output += DrawFix_Label();
}
return(output);
}