用Arcpy将坐标值转为多边形

import arcpy

... pointsStr = 661286,472356,700000,550000,816076,472356,816076,597767,661286,472356

... coordinates = pointsStr .split(,)

... polygonPoints = arcpy.Array()

... polygonGeometryList=

... for i in range(len(coordinates)/2):

...     point = arcpy.Point()

...     point.X = coordinates[2*i]

...     point.Y = coordinates[2*i + 1]

...     print point.X

...     print point.Y

...     polygonPoints.add(point)

... polygon = arcpy.Polygon(polygonPoints) 

... polygonGeometryList.append(polygon) 

... arcpy.CopyFeatures_management(polygonGeometryList, D:/test.shp)