/// <summary>
/// 真上向きAirのGraphicsPathを返します
/// </summary>
/// <returns></returns>
protected virtual GraphicsPath GetAirPath(Point drawLocation)
{
GraphicsPath graphicsPath = new GraphicsPath();
PointF baseLocation = Location.Add(-drawLocation.X, -drawLocation.Y);
PointF topCenter = baseLocation.AddX(Width / 2f).AddY(borderWidth).Add(drawOffset);
PointF topRight = topCenter.AddX(Width / 2f - (Size - 1) * widthRatio).AddY(airHeight - airLineHeight - borderWidth);
PointF topLeft = topCenter.AddX(-(Width / 2f - (Size - 1) * widthRatio)).AddY(airHeight - airLineHeight - borderWidth);
PointF bottomCenter = topCenter.AddY(airLineHeight - borderWidth);
PointF bottomRight = topRight.AddY(airLineHeight - borderWidth);
PointF bottomLeft = topLeft.AddY(airLineHeight - borderWidth);
graphicsPath.AddLines(new PointF[] { topCenter, topRight, bottomRight, bottomCenter, bottomLeft, topLeft });
graphicsPath.CloseFigure();
return(graphicsPath);
}