public static Rectangle GetBounds(this IList <Point> points)
{
if (points == null || points.Count == 0)
{
throw new Exception();
}
var rect = new RECT()
{
left = points[0].X, top = points[0].Y, right = points[0].X, bottom = points[0].Y
};
foreach (var point in points)
{
if (point.X < rect.left)
{
rect.left = point.X;
}
else if (point.X > rect.right)
{
rect.right = point.X;
}
if (point.Y < rect.top)
{
rect.top = point.Y;
}
else if (point.Y > rect.bottom)
{
rect.bottom = point.Y;
}
}
return(rect.GetRectangle());
}