/// <summary>
/// For arrows on axises
/// </summary>
/// <param name="p"></param>
/// <param name="d"></param>
private void DrawArrow(XPoint p, Direction d)
{
XPoint la = null, ra = null;
var len = FractWidth * 0.8;
switch (d)
{
case Direction.X:
{
la = new XPoint((float)(p.FormX - len * .5), (float)(p.FormY + len));
ra = new XPoint((float)(p.FormX + len * .5), (float)(p.FormY + len));
}
break;
case Direction.Y:
{
la = new XPoint((float)(p.FormX - len), (float)(p.FormY + len * .5));
ra = new XPoint((float)(p.FormX - len), (float)(p.FormY - len * .5));
}
break;
default:
return;
}
g.DrawLines(pen, new[] { la.Point(), p.Point(), ra.Point(),
new PointF(d == Direction.Y?p.Point().X - (float)(len / 2.0):p.Point().X,
d == Direction.X ?p.Point().Y - (float)(len / 2.0):p.Point().Y)
, la.Point() });
}