/// <summary>
/// Tries to get start position and initial direction.
/// </summary>
/// <param name="X">X-coordinate.</param>
/// <param name="Y">Y-coordinate.</param>
/// <param name="Direction">Initial direction.</param>
/// <returns>If a start position was found.</returns>
public bool TryGetStart(out float X, out float Y, out float Direction)
{
int c = this.vertices.Count;
if (c<2)
{
X = Y = Direction = 0;
return false;
}
SKPoint P0 = this.vertices[0];
SKPoint P1 = this.vertices[1];
float dx = P1.X - P0.X;
float dy = P1.Y - P0.Y;
X = P0.X;
Y = P0.Y;
Direction = LayoutElement.CalcDirection(dx, dy);
return true;
}