void FillRelativeTo(ChangeTrackingTextBox txtBearing, ChangeTrackingTextBox txtDistance, Point2 relativePoint)
{
double angle = ManeuveringBoard.AngleBetween(relativePoint, posDataPoint.Value);
txtBearing.Text = (angle * MathConst.RadiansToDegrees).ToString("0.##");
txtBearing.Tag = angle;
double distance = relativePoint.DistanceTo(posDataPoint.Value);
txtDistance.Text = ManeuveringBoard.GetDistanceString(distance, unitSystem);
txtDistance.Tag = distance;
txtBearing.WasChanged = txtDistance.WasChanged = false;
}
bool Validate(ChangeTrackingTextBox txtBearing, ChangeTrackingTextBox txtDistance)
{
double value;
if (txtBearing.WasChanged)
{
if (TryParseAngle(txtBearing.Text, out value))
{
txtBearing.Tag = value;
}
else
{
if (string.IsNullOrEmpty(txtBearing.Text.Trim()))
{
ShowRequiredMessage("Bearing");
}
else
{
ShowInvalidAngle(txtBearing.Text);
}
txtBearing.Focus();
return(false);
}
}
if (txtDistance.WasChanged)
{
if (TryParseLength(txtDistance.Text, unitSystem, out value))
{
txtDistance.Tag = value;
}
else
{
if (string.IsNullOrEmpty(txtDistance.Text.Trim()))
{
ShowRequiredMessage("Distance");
}
else
{
ShowInvalidLength(txtDistance.Text);
}
txtDistance.Focus();
return(false);
}
}
return(true);
}
void UpdateObservationPoint(ChangeTrackingTextBox txtBearing, ChangeTrackingTextBox txtDistance, Point2 fromPoint,
ChangeTrackingTextBox txtOtherBearing1, ChangeTrackingTextBox txtOtherDistance1, Point2?otherPoint1,
ChangeTrackingTextBox txtOtherBearing2, ChangeTrackingTextBox txtOtherDistance2, Point2?otherPoint2)
{
if (Validate(txtBearing, txtDistance))
{
double bearing = (double)txtBearing.Tag, distance = (double)txtDistance.Tag;
posDataPoint = fromPoint + new Vector2(0, distance).Rotate(-bearing);
if (otherPoint1.HasValue)
{
FillRelativeTo(txtOtherBearing1, txtOtherDistance1, otherPoint1.Value);
}
if (otherPoint2.HasValue)
{
FillRelativeTo(txtOtherBearing2, txtOtherDistance2, otherPoint2.Value);
}
txtBearing.WasChanged = txtDistance.WasChanged = false;
}
}
void FillRelativeTo(Shape relativeTo, ChangeTrackingTextBox txtBearing, ChangeTrackingTextBox txtDistance, out Point2?relativePoint)
{
FillRelativeTo(txtBearing, txtDistance, relativeTo.Position);
relativePoint = relativeTo.Position;
}
