public GWire()
{
model = new GWireModel();
this.DataContext = model;
WirePath.DataContext = this;
this.InitializeComponent();
}
/// <summary>
/// Create a GWire from the xy coordinates of two GPrimitives.
/// Not really type safe, I guess. Perhaps in the future.
/// </summary>
/// <param name="x1"></param>
/// <param name="y1"></param>
/// <param name="x2"></param>
/// <param name="y2"></param>
public GWire(double x1, double y1, double x2, double y2)
{
model = new GWireModel();
this.DataContext = model;
this.InitializeComponent();
WirePath.DataContext = this;
PathData = CalculatePathSegmentsFromParentCoordinates(x1, y1, x2, y2);
}