/// <summary>
/// repositions the polygon so the Centroid is the origin.
/// </summary>
/// <param name="vertices">The vertices of the polygon.</param>
/// <returns>The vertices of the polygon with the Centroid as the Origin.</returns>
public static Vector2D[] MakeCentroidOrigin(Vector2D[] vertices)
{
Vector2D centroid;
BoundingPolygon.GetCentroid(vertices, out centroid);
return(OperationHelper.ArrayRefOp <Vector2D, Vector2D, Vector2D>(vertices, ref centroid, Vector2D.Subtract));
}
/// <summary>
/// Calculates the Centroid of a polygon.
/// </summary>
/// <param name="vertices">The vertices of the polygon.</param>
/// <returns>The Centroid of a polygon.</returns>
/// <remarks>
/// This is Also known as Center of Gravity/Mass.
/// </remarks>
public static Vector2D GetCentroid(Vector2D[] vertices)
{
Vector2D result;
BoundingPolygon.GetCentroid(vertices, out result);
return(result);
}