private void renderAxisLabel(Graphics graphics, int index, string label)
{
var measure = graphics.MeasureString(label, _style.AxisCaptionFont);
var origin = getPointOnLine(index, _style.AxisCaptionDistance + 1F);
var point = origin;
var rect = new RectangleF(point, measure);
var mid = chartMiddle;
var pen = new Pen(Color.Red, 1F);
// get corner of rectangle which would move the rect furtest away from the axis
if (point.X == mid.X && point.Y < mid.Y)
{
point = rect.BottomCenter();
}
else if (point.X > mid.X && point.Y < mid.Y)
{
point = rect.BottomLeft();
}
else if (point.X > mid.X && point.Y == mid.Y)
{
point = rect.CenterLeft();
}
else if (point.X > mid.X && point.Y > mid.Y)
{
point = rect.TopLeft();
}
else if (point.X == mid.X && point.Y > mid.Y)
{
point = rect.TopCenter();
}
else if (point.X < mid.X && point.Y > mid.Y)
{
point = rect.TopRight();
}
else if (point.X < mid.X && point.Y == mid.Y)
{
point = rect.CenterRight();
}
else if (point.X < mid.X && point.Y < mid.Y)
{
point = rect.BottomRight();
}
// translate the rectangle to the new location
rect.X += origin.X - point.X;
rect.Y += origin.Y - point.Y;
//graphics.DrawRectangle(pen, rect.X, rect.Y, rect.Width, rect.Height);
//graphics.DrawCircle(pen, rect.TopCenter(), 3);
//graphics.DrawCircle(pen, rect.TopRight(), 3);
//graphics.DrawCircle(pen, rect.CenterRight(), 3);
//graphics.DrawCircle(pen, rect.BottomRight(), 3);
//graphics.DrawCircle(pen, rect.BottomCenter(), 3);
//graphics.DrawCircle(pen, rect.BottomLeft(), 3);
//graphics.DrawCircle(pen, rect.CenterLeft(), 3);
//graphics.DrawCircle(pen, rect.TopLeft(), 3);
graphics.DrawString(label, _style.AxisCaptionFont, new SolidBrush(_style.TextColor), rect);
}