Identify the inside polygon of a set of points
+ +inside_polygon.Rd
Uses concentric mirroring onto a radius around the center point, applies an +alpha hull to that shape, and mirrors the result back.
+Arguments
+- x +
numeric vector of x positions
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+- y +
numeric vector of y positions
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+- concavity +
strictly positive parameter. Smaller values approach the +inside of the boundary +more closely. Large values concentrate on the inner center of the area
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+- center +
numeric vector of length 2, consisting of (x,y) coordinate for +centering x and y values. +If center is NULL, the half ranges of x and y are used.
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