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to you under the Apache License, Version 2.0 (the
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   http://www.apache.org/licenses/LICENSE-2.0

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<html>
    <head>
        <meta charset="utf-8">
        <script src="./lib/esl.js"></script>
        <script src="./lib/config.js"></script>
        <link rel="stylesheet" href="./lib/reset.css">
    </head>
    <body>
        <style>
            body {
                background: #000;
            }
        </style>
        <div id="main"></div>

        <script>

            // Schema:
            // date,AQIindex,PM2.5,PM10,CO,NO2,SO2
            var schema = [
                {name: 'date', index: 0, text: '日'},
                {name: 'AQIindex', index: 1, text: 'AQI指数'},
                {name: 'PM25', index: 2, text: 'PM2.5'},
                {name: 'PM10', index: 3, text: 'PM10'},
                {name: 'CO', index: 4, text: '一氧化碳（CO）'},
                {name: 'NO2', index: 5, text: '二氧化氮（NO2）'},
                {name: 'SO2', index: 6, text: '二氧化硫（SO2）'}
            ];

            require([
                'data/aqi/BJdata',
                'data/aqi/GZdata',
                'data/aqi/SHdata',
                'echarts'
                // 'echarts/chart/scatter',
                // 'echarts/component/legend',
                // 'echarts/component/tooltip',
                // 'echarts/component/grid',
                // 'echarts/component/visualMapContinuous'
            ], function (dataBJ, dataGZ, dataSH, echarts) {

                var chart = echarts.init(document.getElementById('main'), null, {

                });


                var itemStyle = {
                    normal: {
                        opacity: 0.8,
                        shadowBlur: 10,
                        shadowOffsetX: 0,
                        shadowOffsetY: 0,
                        shadowColor: 'rgba(0, 0, 0, 0.5)'
                    }
                };

                chart.setOption({
                    legend: {
                        top: 'top',
                        data: ['北京', '上海', '广州'],
                        textStyle: {
                            color: '#fff',
                            fontSize: 20
                        }
                    },
                    grid: {
                        left: '10%',
                        right: 200,
                        top: '15%',
                        bottom: '10%'
                    },
                    tooltip: {
                        padding: 10,
                        backgroundColor: '#222',
                        borderColor: '#777',
                        borderWidth: 1,
                        formatter: function (obj) {
                            var value = obj.value;
                            return '<div style="border-bottom: 1px solid rgba(255,255,255,.3); font-size: 18px;padding-bottom: 7px;margin-bottom: 7px">'
                                + obj.seriesName + ' ' + value[0] + '日：'
                                + value[7]
                                + '</div>'
                                + schema[1].text + '：' + value[1] + '<br>'
                                + schema[2].text + '：' + value[2] + '<br>'
                                + schema[3].text + '：' + value[3] + '<br>'
                                + schema[4].text + '：' + value[4] + '<br>'
                                + schema[5].text + '：' + value[5] + '<br>'
                                + schema[6].text + '：' + value[6] + '<br>';
                        }
                    },
                    xAxis: {
                        type: 'value',
                        name: '日期',
                        nameGap: 16,
                        nameTextStyle: {
                            color: '#fff',
                            fontSize: 14
                        },
                        max: 31,
                        splitLine: {
                            show: false
                        },
                        axisTick: {
                            lineStyle: {
                                color: '#777'
                            }
                        },
                        axisLabel: {
                            formatter: '{value}',
                            textStyle: {
                                color: '#fff'
                            }
                        }
                    },
                    yAxis: {
                        type: 'value',
                        name: 'AQI指数',
                        nameLocation: 'end',
                        nameGap: 20,
                        nameTextStyle: {
                            color: '#fff',
                            fontSize: 20
                        },
                        axisTick: {
                            lineStyle: {
                                color: '#777'
                            }
                        },
                        splitLine: {
                            show: false
                        },
                        axisLabel: {
                            textStyle: {
                                color: '#fff'
                            }
                        }
                    },
                    visualMap: [
                        {
                            right: 0,
                            top: 'top',
                            dimension: 'value',
                            min: 0,
                            max: 250,
                            itemWidth: 30,
                            itemHeight: 130,
                            calculable: true,
                            precision: 0.1,
                            text: ['圆形大小：PM2.5'],
                            textGap: 30,
                            textStyle: {
                                color: '#fff'
                            },
                            inRange: {
                                symbolSize: [10, 70]
                            },
                            outOfRange: {
                                symbolSize: [10, 70],
                                color: ['rgba(255,255,255,.2)']
                            },
                            controller: {
                                outOfRange: {
                                    color: ['#444']
                                }
                            }
                        },
                        {
                            left: 'right',
                            top: 'bottom',
                            dimension: 6,
                            min: 0,
                            max: 50,
                            itemHeight: 130,
                            calculable: true,
                            precision: 0.1,
                            text: ['明暗：二氧化硫'],
                            textGap: 30,
                            textStyle: {
                                color: '#fff'
                            },
                            inRange: {
                                colorLightness: [1, .5]
                            },
                            outOfRange: {
                                color: ['rgba(255,255,255,.2)']
                            },
                            controller: {
                                outOfRange: {
                                    color: ['#444']
                                }
                            }
                        }
                    ],
                    series: [
                        {
                            name: '北京',
                            type: 'scatter',
                            itemStyle: itemStyle,
                            data: dataBJ
                        },
                        {
                            name: '上海',
                            type: 'scatter',
                            itemStyle: itemStyle,
                            data: dataSH
                        },
                        {
                            name: '广州',
                            type: 'scatter',
                            itemStyle: itemStyle,
                            data: dataGZ
                        }
                    ]
                });
            });

        </script>
    </body>
</html>