/// <summary>
/// Checks if given <c>PointF</c> is contained within quadrilateral
/// defined by <c>cornerPoints</c> provided.
/// </summary>
/// <param name="point"><c>PointF</c> to check.</param>
/// <param name="cornerPoints">Array of <c>PointF</c> structures defining corners of the
/// quadrilateral.</param>
/// <returns>
/// <c>true</c> if the point is contained within the quadrilateral.
/// </returns>
/// <exception cref="System.ArgumentNullException">point or cornerPoints</exception>
public static bool Contains(PointF point, PointF[] cornerPoints)
{
point.ThrowIfNull(nameof(point));
cornerPoints.ThrowIfNull(nameof(cornerPoints));
int intersections = 0;
for (int i = 1; i < cornerPoints.Length; ++i)
{
if (DoesIntersect(point, cornerPoints[i], cornerPoints[i - 1]))
++intersections;
}
if (DoesIntersect(point, cornerPoints[cornerPoints.Length - 1], cornerPoints[0]))
++intersections;
return intersections % 2 != 0;
}
