private void UpdateDistBrg()
{
Distance = LatLongCalc.Distance(StartLat, StartLon, EndLat, EndLon, 'N');
DispDistTextBox.Text = decimal.Round(Convert.ToDecimal(Distance), 2, MidpointRounding.AwayFromZero).ToString();
TrueBrg = LatLongCalc.Bearing(StartLat, StartLon, EndLat, EndLon);
DispBrgTextBox.Text = decimal.Round(Convert.ToDecimal(TrueBrg), 2, MidpointRounding.AwayFromZero).ToString();
}
private void ChordStats()
{
ChordLength = LatLongCalc.Distance(EndLat, EndLon, StartLat, StartLon);
ChordArcAngle = LatLongCalc.Deg2Rad(Math.Abs(StartBrg = EndBrg));
ChordArcLength = ChordArcAngle * ArcRadius;
ChordRadius = ChordArcLength / 2;
ChordLengthTextBox.Text = ChordLength.ToString("F3");
ChordRadiusTextBox.Text = ChordRadius.ToString("F3");
ChordArcLengthTextBox.Text = ChordArcLength.ToString("F3");
}
private void UpdateStats()
{
if ((CenterLat != -1) && (CenterLon != -1))
{
if ((StartLat != -1) && (StartLon != -1))
{
StartBrg = LatLongCalc.Bearing(CenterLat, CenterLon, StartLat, StartLon);
if (StartBrg == 0)
{
StartBrg = 360;
}
StartRadialNUD.Value = Convert.ToInt32(StartBrg);
ArcRadius = LatLongCalc.Distance(CenterLat, CenterLon, StartLat, StartLon);
CalcDistanceTextBox.Text = ArcRadius.ToString("F3");
}
else
{
ArcRadius = -1;
StartBrg = -1;
StartRadialNUD.Value = 1;
CalcDistanceTextBox.Text = string.Empty;
}
if ((EndLat != -1) && (EndLon != -1))
{
EndBrg = LatLongCalc.Bearing(CenterLat, CenterLon, EndLat, EndLon);
if (EndBrg == 0)
{
EndBrg = 360;
}
EndRadialNUD.Value = Convert.ToInt32(EndBrg);
EndDistTextBox.Text = LatLongCalc.Distance(CenterLat, CenterLon, EndLat, EndLon).ToString("F3");
if (ArcRadius != -1)
{
ChordStats();
}
}
else
{
EndBrg = -1;
EndRadialNUD.Value = 1;
EndDistTextBox.Text = string.Empty;
}
}
else
{
ArcRadius = EndBrg = StartBrg - 1;
}
CheckArcButton();
}
