from pyproj import Transformer


class Projector:
    def __init__(self, from_epsg, to_epsg):
        self._transformer = Transformer.from_crs(from_epsg, to_epsg)

    def transform(self, y_lat, x_lon):
        transformer = self._transformer
        lat_y, lon_x = transformer.transform(y_lat, x_lon)
        return lat_y, lon_x


EPSG_WGS_84 = "epsg:4326"
EPSG_Xian_1980_105E = "epsg:4507"
EPSG_CGCS_2000_108E = "epsg:4545"
# _transformer_84_yx = Transformer.from_crs("epsg:4326", "epsg:4507")
# _transformer_yx_84 = Transformer.from_crs("epsg:4507", "epsg:4326")

# WGS 84 坐标转平面
# latitude 纬度
# longitude 经度


# def wgs_84_yx(latitude, longitude, _elevation):
#     y, x = _transformer_84_yx.transform(latitude, longitude)  # lon 和lat 可以是元组
#     return y, x
#
#
# def yx_wgs_84(y, x, _elevation):
#     latitude, longitude = _transformer_yx_84.transform(y, x)  # lon 和lat 可以是元组
#     return latitude, longitude
#
# def yx_2000_wgs_84(y, x, _elevation):