Jimco

pixelToPoint = function(point, zoom, center, bounds) {
    // 像素到坐标
    if (!point) {
        return
    }
    var zoomUnits = getZoomUnits(zoom);
    var mercatorLng = center.lng + zoomUnits * (point.x - bounds.width / 2);
    var mercatorLat = center.lat - zoomUnits * (point.y - bounds.height / 2);
    var mercatorLngLat = {lng: mercatorLng, lat: mercatorLat};
    return mercatorToLngLat(mercatorLngLat)

Jimco

Provider	Singleton	Instantiable	Configurable
Constant	Yes	No	No
Value	Yes	No	No
Service	Yes	No	No
Factory	Yes	Yes	No
Decorator	Yes	No?	No
Provider	Yes	Yes	Yes

Constant