view.py 文件源码

def __init__(self, **kwargs):
        from kivy.base import EventLoop
        EventLoop.ensure_window()
        self._invalid_scale = True
        self._tiles = []
        self._tiles_bg = []
        self._tilemap = {}
        self._layers = []
        self._default_marker_layer = None
        self._need_redraw_all = False
        self._transform_lock = False
        self.trigger_update(True)
        self.canvas = Canvas()
        self._scatter = MapViewScatter()
        self.add_widget(self._scatter)
        with self._scatter.canvas:
            self.canvas_map = Canvas()
            self.canvas_layers = Canvas()
        with self.canvas:
            self.canvas_layers_out = Canvas()
        self._scale_target_anim = False
        self._scale_target = 1.
        self._touch_count = 0
        Clock.schedule_interval(self._animate_color, 1 / 60.)
        self.lat = kwargs.get("lat", self.lat)
        self.lon = kwargs.get("lon", self.lon)
        super(MapView, self).__init__(**kwargs)