function getVirtulData(year) {
    year = year || '2017';
    var date = +echarts.number.parseDate(year + '-01-01');
    var end = +echarts.number.parseDate((+year + 1) + '-01-01');
    var dayTime = 3600 * 24 * 1000;
    var data = [];
    for (var time = date; time < end; time += dayTime) {
        data.push([
            echarts.format.formatTime('yyyy-MM-dd', time),
            Math.floor(Math.random() * 10000)
        ]);
    }
    return data;
}

var data = getVirtulData(2016);

option = {
    backgroundColor: '#404a59',

    title: {
        top: 30,
        text: '2016年某人每天的步数',
        subtext: '数据纯属虚构',
        left: 'center',
        textStyle: {
            color: '#fff'
        }
    },
    tooltip: {
        trigger: 'item'
    },
    legend: {
        top: '30',
        left: '100',
        data: ['步数', 'Top 12'],
        textStyle: {
            color: '#fff'
        }
    },
    calendar: [{
        top: 100,
        left: 'center',
        range: ['2016-01-01', '2016-06-30'],
        splitLine: {
            show: true,
            lineStyle: {
                color: '#000',
                width: 4,
                type: 'solid'
            }
        },
        yearLabel: {
            formatter: '{start}  1st',
            textStyle: {
                color: '#fff'
            }
        },
        itemStyle: {
            color: '#323c48',
            borderWidth: 1,
            borderColor: '#111'
        }
    }, {
        top: 340,
        left: 'center',
        range: ['2016-07-01', '2016-12-31'],
        splitLine: {
            show: true,
            lineStyle: {
                color: '#000',
                width: 4,
                type: 'solid'
            }
        },
        yearLabel: {
            formatter: '{start}  2nd',
            textStyle: {
                color: '#fff'
            }
        },
        itemStyle: {
            color: '#323c48',
            borderWidth: 1,
            borderColor: '#111'
        }
    }],
    series: [
        {
            name: '步数',
            type: 'scatter',
            coordinateSystem: 'calendar',
            data: data,
            symbolSize: function (val) {
                return val[1] / 500;
            },
            itemStyle: {
                color: '#ddb926'
            }
        },
        {
            name: '步数',
            type: 'scatter',
            coordinateSystem: 'calendar',
            calendarIndex: 1,
            data: data,
            symbolSize: function (val) {
                return val[1] / 500;
            },
            itemStyle: {
                color: '#ddb926'
            }
        },
        {
            name: 'Top 12',
            type: 'effectScatter',
            coordinateSystem: 'calendar',
            calendarIndex: 1,
            data: data.sort(function (a, b) {
                return b[1] - a[1];
            }).slice(0, 12),
            symbolSize: function (val) {
                return val[1] / 500;
            },
            showEffectOn: 'render',
            rippleEffect: {
                brushType: 'stroke'
            },
            hoverAnimation: true,
            itemStyle: {
                color: '#f4e925',
                shadowBlur: 10,
                shadowColor: '#333'
            },
            zlevel: 1
        },
        {
            name: 'Top 12',
            type: 'effectScatter',
            coordinateSystem: 'calendar',
            data: data.sort(function (a, b) {
                return b[1] - a[1];
            }).slice(0, 12),
            symbolSize: function (val) {
                return val[1] / 500;
            },
            showEffectOn: 'render',
            rippleEffect: {
                brushType: 'stroke'
            },
            hoverAnimation: true,
            itemStyle: {
                color: '#f4e925',
                shadowBlur: 10,
                shadowColor: '#333'
            },
            zlevel: 1
        }
    ]
};