lCircularity ratio: the ratio of the area of the shape to the area of a circle (the most compact shape) having the same perimeter. (area-perimeter ratio)

M = ( 4 * Pi * Area of Polygon) / (Perimeter of Polygon)^2

For a circle, the ratio is one; for a square, it is ð / 4; for an infinitely long and narrow shape, it is zero.

M = ( 4 * Pi * Area of Polygon) / (Perimeter of Polygon)^2

For a circle, the ratio is one; for a square, it is ð / 4; for an infinitely long and narrow shape, it is zero.

I found it at: http://ce.sharif.edu/~alamgir/

Further searches indicate that this method of classification may be relatively unknown. Does anyone have knowledge in this area?

regards,

Larry Becker