maplib.py 文件源码

def cover_region_simple(self, location1, location2):  # lat values must be between -90 and +90, lng values must be between -180 and 180
        l_lat1 = location1[0]
        l_lat2 = location2[0]
        l_lng1 = location1[1]
        l_lng2 = location2[1]

        ind_lat_f = 0
        while l_lat1 > self.grid[ind_lat_f][0]:
            ind_lat_f += 1

        ind_lat_t = ind_lat_f + 1
        while ind_lat_t < len(self.grid) and l_lat2 >= self.grid[ind_lat_t][0]:
            ind_lat_t += 1
        points = []
        for ind_lat in range(ind_lat_f, ind_lat_t):
            d_lng = 360.0 / self.grid[ind_lat][1]
            if self.grid[ind_lat][2]:
                c_lng = 0.0
            else:
                c_lng = 0.5

            ind_lng_f = int(ceil(l_lng1 / d_lng - c_lng))
            ind_lng_t = int(floor(l_lng2 / d_lng - c_lng))
            for ind_lng in range(ind_lng_f, ind_lng_t + 1):
                points.append([self.grid[ind_lat][0], d_lng * (ind_lng + c_lng)])

        return points