# _*_ coding:utf-8 _*_

class GPS:
    def _init_(self,lon = 'Null', lat = 'Null'):
        self.Lat = lat
        self.Lon = lon

    def getLat(self):
        return self.Lat

    def getLon(self):
        return self.Lon

    def setLat(self,lat):
        self.Lat = lat

    def setLon(self,lon):
        self.Lon = lon

    def toString(self):
        return str(self.Lon) + ',' + str(self.Lat)


class GPSConverterUtils:
    def pi(self):
        return float(3.1415926535897932384626)

    def a(self):
        return float(6378245.0)

    def ee(self):
        return float(0.00669342162296594323)

    def is_out_of_china(self,lon,lat):
        if (lon < 72.004 or lat > 137.8347):
            print('Your coordinate is out of China, please check and retry again!!!')
            return True
        elif (lat < 0.8293 or lat > 55.8271):
            print('Your coordinate is out of China, please check and retry again!!!')
            return True
        else:
            return False

    def transformLat(self,x:float,y:float):
        import math
        ret = -100.0 + 2.0 * x + 3.0 * y + 0.2 * y * y + 0.1 * x * y + 0.2 * math.sqrt(math.fabs(x))
        ret += ((20.0 * (math.sin(6.0 * x * (self.pi()))) + 20.0 * math.sin(2.0 * x * (self.pi())))) * 2.0 / 3.0)
        ret += (20.0 * math.sin(y * self.pi()) + 40.0 * math.sin(y / 3.0 * self.pi())) * 2.0 / 3.0
        ret += (160.0 * math.sin(y / 12.0 * self.pi()) + 320 * math.sin(y * self.pi() / 30.0)) * 2.0 / 3.0
        return ret