old_contents: from .coordTransform_utils import wgs84togcj02, gcj02towgs84, gcj02tobd09, bd09togcj02
  
  
  def wgs84tobd09(lng, lat):
      tmp_lng, tmp_lat = wgs84togcj02(lng, lat)
      return gcj02tobd09(tmp_lng, tmp_lat)
  
  
  def bd09towgs84(lng, lat):
      tmp_lng, tmp_lat = bd09togcj02(lng, lat)
      return gcj02towgs84(tmp_lng, tmp_lat)
  
  methods = {
      "wgs2gcj": wgs84togcj02,
      "gcj2wgs": gcj02towgs84,
      "wgs2bd": wgs84tobd09,
      "bd2wgs": bd09towgs84,
      "gcj2bd": gcj02tobd09,
      "bd2gcj": bd09towgs84
  }
  
  
  def convertor(geometry, method="wgs2gcj"):
      """
      convert wgs84 to gcj
      referencing by https://github.com/wandergis/coordTransform_py
      """
      # TODO: point linestring point
      if geometry['type'] == 'MultiLineString':
          coordinates = geometry['coordinates']
          for lines in coordinates:
              for line in lines:
                  line[0], line[1] = methods[method](line[0], line[1])
  
      return geometry
  
  
  
new_contents: from .coordTransform_utils import wgs84togcj02, gcj02towgs84, gcj02tobd09, bd09togcj02
  
  
  def wgs84tobd09(lng, lat):
      tmp_lng, tmp_lat = wgs84togcj02(lng, lat)
      return gcj02tobd09(tmp_lng, tmp_lat)
  
  
  def bd09towgs84(lng, lat):
      tmp_lng, tmp_lat = bd09togcj02(lng, lat)
      return gcj02towgs84(tmp_lng, tmp_lat)
  
  methods = {
      "wgs2gcj": wgs84togcj02,
      "gcj2wgs": gcj02towgs84,
      "wgs2bd": wgs84tobd09,
      "bd2wgs": bd09towgs84,
      "gcj2bd": gcj02tobd09,
      "bd2gcj": bd09towgs84
  }
  
  
  def convertor(geometry, method="wgs2gcj"):
      """
      convert wgs84 to gcj
      referencing by https://github.com/wandergis/coordTransform_py
      """
      if geometry['type'] == 'Point':
          coords = geometry['coordinates']
          coords[0], coords[1] = methods[method](coords[0], coords[1])
      elif geometry['type'] == 'LineString' or geometry['type'] == 'MutliPoint':
          coordinates = geometry['coordinates']
          for coords in coordinates:
              coords[0], coords[1] = methods[method](coords[0], coords[1])
      elif geometry['type'] == 'Polygon' or geometry['type'] == 'MultiLineString':
          coordinates = geometry['coordinates']
          for rings in coordinates:
              for coords in rings:
                  coords[0], coords[1] = methods[method](coords[0], coords[1])
      elif geometry['type'] == 'MultiPolygon':
          coordinates = geometry['coordinates']
          for rings in coordinates:
              for lines in rings:
                  for coords in lines:
                      coords[0], coords[1] = methods[method](coords[0], coords[1])
      return geometry
  
  
  
subject: add different type support