GeoJSON JS判断某一点是否在某一区域范围之内 算法: function isInPolygon(checkPoint, polygonPoints) { var counter = 0; var i; var xinters; var p1, p2; var pointCount = polygonPoints.length; p1 = polygonPoints[0]; for (i = 1; i <= pointCount; i++) { p2 = polygonPoints[i %…
class Point: lng = '' lat = '' def __init__(self, lng, lat): self.lng = lng self.lat = lat # 求外包矩形 def get_polygon_bounds(points): length = len(points) top = down = left = right = points[0] for i in range(1, length): if points[i].lng > top.lng: top =…