TDataView_ui/scripts/meteo/c/timeLine.js

/**
 * 时间轴类
 */
define([], function () {
    var time = {
        day: [],
        hour: [],
        hourPostion:[],
        max: 350,
        callbacks: [],
        init: function () {
            var it = 360 / 32;
            for(var i = 0; i <= 32; i++) {
                time.hourPostion.push(i * it);
            }
        },
        addCallbacks: function (callback) {
            time.callbacks.push(callback);
        },
        timeUpdate: function (position) {
            for(var i = 0; i < time.hourPostion.length - 1; i++) {
                if (position > time.hourPostion[i] && position < time.hourPostion[i + 1]) {
                    var day = time.day[((i / 8) >> 0)];
                    var hour = time.hour[i];
                    for (var key in time.callbacks) {
                        var callback = time.callbacks[key];
                        callback ? callback(day, hour) : null;
                    }
                    return;
                }
            }
        }

    }

    return time;
});