/// <summary> Builds the geodesic.
/// </summary>
public void Rebuild()
{
if ((Math.Abs(_za.D()) < EPSILON) || // za == origin
(Math.Abs(_zb.D()) < EPSILON) || // zb == origin
(Math.Abs((_za.X / _zb.X) - (_za.Y / _zb.Y)) < EPSILON)) // za == lambda.zb
{
_type = DrawType.Line;
}
else
{
_type = DrawType.Arc;
double __da = 1 + _za.X * _za.X + _za.Y * _za.Y;
double __db = 1 + _zb.X * _zb.X + _zb.Y * _zb.Y;
double __dd = 2 * (_za.X * _zb.Y - _zb.X * _za.Y);
_zo.X = (_zb.Y * __da - _za.Y * __db) / __dd;
_zo.Y = (_za.X * __db - _zb.X * __da) / __dd;
double __det = (_zb.X - _zo.X) * (_za.Y - _zo.Y) - (_za.X - _zo.X) * (_zb.Y - _zo.Y);
double __fa = _za.Y * (_za.Y - _zo.Y) - _za.X * (_zo.X - _za.X);
double __fb = _zb.Y * (_zb.Y - _zo.Y) - _zb.X * (_zo.X - _zb.X);
_zc.X = ((_za.Y - _zo.Y) * __fb - (_zb.Y - _zo.Y) * __fa) / __det;
_zc.Y = ((_zo.X - _za.X) * __fb - (_zo.X - _zb.X) * __fa) / __det;
}
}
private void UpdatePosition(object sender, EventArgs e)
{
if (_animatedNode != null)
{
_velocity.X *= 0.90;
_velocity.Y *= 0.90;
if (_velocity.D() > 0.01)
{
this.Translate(_animatedNode.OldCoordinates, _velocity);
}
else
{
_animatedNode = null;
this.EndTranslation();
_view.StartMouseListening();
}
}
}