Code

private void diagram_DrawNode(object sender, DrawNodeEventArgs e)
{
	DiagramNode node = e.Node;
	RectangleF rect = e.Bounds;
	foreach (AnchorPoint point in node.AnchorPattern.Points)
	{
		// convert from anchorpoint percent coordinates
		float x = rect.X + point.X * rect.Width / 100;
		float y = rect.Y + point.Y * rect.Height / 100;

		StringFormat format = new StringFormat();
		format.LineAlignment = StringAlignment.Center;
		if (point.X == 100)
		{
			// point on right side of node
			format.Alignment = StringAlignment.Far;
			x -= 1;
		}
		else
		{
			// point on right side of node
			format.Alignment = StringAlignment.Near;
			x += 1;
		}

		e.Graphics.DrawString((string)point.Tag,
			node.EffectiveFont, Brushes.Black, x, y, format);
	}
}