Have a set of two-dimensional coordinate point set, coordinate (Xn, Yn), known as shown in the figure below,

Is to detect the concentration of some points, coordinates in local coordinates description, as shown in picture,

Wants to know this a few points are detected by a global point of which a few, consult the how to match?
Thank you very much,

CodePudding user response:

Jacking, a great god to answer

CodePudding user response:

Distance, match,


Distance formula to calculate the can,