how to know face size from FaceEncoding Object?

[LeeBaeng]

namespace FaceRecognitionDotNet.FaceEncoding

how to know face size from FaceEncoding Object?
or want know location information for find who close from cam.

This doesn't have to be exact. then, it will be decided through the Width and Height of the face.
but I don't know what the face size or location information.

when FaceRecognition class encode the data from image, that receive location. but encoding data has no location.