a =b@s:ddgZddlZddlmZeddddZd dZdS) polygon_clip polygon_areaN)require matplotlibz>=3.0.3c Csddlm}m}|jt||fjdd}|||g||gg} ||  d} t | d| dkrt| dd} | dddf| dddffS) aClip a polygon to the given bounding box. Parameters ---------- rp, cp : (N,) ndarray of double Row and column coordinates of the polygon. (r0, c0), (r1, c1) : double Top-left and bottom-right coordinates of the bounding box. Returns ------- r_clipped, c_clipped : (M,) ndarray of double Coordinates of clipped polygon. Notes ----- This makes use of Sutherland-Hodgman clipping as implemented in AGG 2.4 and exposed in Matplotlib. r)path transformsT)closedNr) rrrPathnpZvstackTZBboxZ clip_to_bboxZ to_polygonsall) ZrpZcpZr0Zc0Zr1Zc1rrZpolyZ clip_rectZ poly_clippedr8lib/python3.9/site-packages/skimage/_shared/_geometry.pyrs c CsTt|}t|}dtt|dd|dd|dd|ddS)zCompute the area of a polygon. Parameters ---------- pr, pc : (N,) array of float Polygon row and column coordinates. Returns ------- a : float Area of the polygon. g?Nr r)r Zasarrayabssum)ZprZpcrrrr+s  )__all__Znumpyr Zversion_requirementsrrrrrrrs   "