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2020-11-18echarts右侧数量控制由划动改为方块

2020-11-18echarts右侧数量控制由划动改为方块

作者: 你的爱Imnot | 来源:发表于2020-11-18 17:52 被阅读0次
    香港人口改进echarts

    代码如下

    myChart.showLoading();

    $.get(ROOT_PATH +'/data/asset/geo/HK.json', function (geoJson) {

       myChart.hideLoading();

       echarts.registerMap('HK', geoJson);

       myChart.setOption(option = {

           title: {

               text: '香港18区人口密度 (2011)',

               subtext: '人口密度数据来自Wikipedia',

               sublink:'http://zh.wikipedia.org/wiki/%E9%A6%99%E6%B8%AF%E8%A1%8C%E6%94%BF%E5%8D%80%E5%8A%83#cite_note-12'

           },

           tooltip: {

               trigger: 'item',

               formatter: '{b}
    {c} (p / km2)'//气泡中的文字

           },

           toolbox: {

               show: true,

               orient: 'vertical',

               left: 'right',

               top: 'center',

               feature: {

                    dataView: {readOnly: false},

                    restore: {},

                    saveAsImage: {}

               }

           },

           visualMap: {           //右侧数量控制 

                    top: 10,

                    right: 10,

                    pieces: [{

                        gt: 0,

                        lte: 16000,

                        color: '#E0EBFF'

                    }, {

                        gt: 16000,

                        lte: 20000,

                        color: '#aac7ff'

                    }, {

                        gt: 20000,

                        lte: 100000,

                        color: '#73A5FE'

                    }],

                    outOfRange: {

                        color: '#999'

                    },

                    formatter: function (index) {  //文字格式化 

                       let text = ''

                        switch (index) {

                            case 0:

                                text = '少数区'

                                break;

                            case 16000:

                                text = '中间区'

                               break;

                            case 20000:

                                text = '多数区'

                                break;       

                            default:

                                break;

                        }

                        return text; //范围标签显示内容。

                    }

           },

           series: [

               {

                    name: '香港18区人口密度',

                    type: 'map',

                    mapType: 'HK', //自定义扩展图表类型

                    label: {

                        show: true

                    },

                    data: [

                        {name: '中西区', value: 20057.34},

                        {name: '湾仔', value: 15477.48},

                        {name: '东区', value: 31686.1},

                        {name: '南区', value: 6992.6},

                        {name: '油尖旺', value: 44045.49},

                        {name: '深水埗', value: 40689.64},

                        {name: '九龙城', value: 37659.78},

                        {name: '黄大仙', value: 45180.97},

                        {name: '观塘', value: 55204.26},

                        {name: '葵青', value: 21900.9},

                        {name: '荃湾', value: 4918.26},

                        {name: '屯门', value: 5881.84},

                        {name: '元朗', value: 4178.01},

                        {name: '北区', value: 2227.92},

                        {name: '大埔', value: 2180.98},

                        {name: '沙田', value: 9172.94},

                        {name: '西贡', value: 3368},

                        {name: '离岛', value: 806.98}

                   ],

                    //自定义名称映射

                    nameMap: {

                        'Central and Western': '中西区',

                        'Eastern': '东区',

                        'Islands': '离岛',

                        'Kowloon City': '九龙城',

                        'Kwai Tsing': '葵青',

                        'Kwun Tong': '观塘',

                        'North': '北区',

                        'Sai Kung': '西贡',

                        'Sha Tin': '沙田',

                        'Sham Shui Po': '深水埗',

                        'Southern': '南区',

                       'Tai Po': '大埔',

                        'Tsuen Wan': '荃湾',

                        'Tuen Mun': '屯门',

                        'Wan Chai': '湾仔',

                        'Wong Tai Sin': '黄大仙',

                        'Yau Tsim Mong': '油尖旺',

                        'Yuen Long': '元朗'

                    }

               }

           ]

       });

    });

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