“大数据” - 天津市echarts scatter配置项内容和展示

      var uploadedDataURL = "/asset/get/s/data-1525844720391-Skugj-g0f.json";
myChart.showLoading();
$.getJSON(uploadedDataURL, function(geoJson) {
    echarts.registerMap('tianjin', geoJson);
    myChart.hideLoading();
    var geoCoordMap = {
        '和平':[117.2,39.12],
        '河东':[117.22,39.12],
        '河西':[117.22,39.12],
        '南开':[117.15,39.13],
        '河北':[117.18,39.15],
        '红桥':[117.15,39.17],
        '塘沽':[117.65,39.02],
        '汉沽':[117.8,39.25],
        '大港':[117.45,38.83],
        '东丽':[117.3,39.08],
        '西青':[117,39.13],
        '津南':[117.38,38.98],
        '北辰':[117.13,39.22],
        '武清':[117.03,39.38],
        '宝坻':[117.3,39.72],
        '宁河':[117.82,39.33],
        '静海':[116.92,38.93],
        '蓟县':[117.4,40.05],
    }
    var data = [
        {name:'和平', value: 199},
        {name:'河东', value: 39},
        {name:'河西', value: 152},
        {name:'南开', value: 299},
        {name:'河北', value: 89},
        {name:'红桥', value: 52},
        {name:'塘沽', value: 9},
        {name:'汉沽', value: 352},
        {name:'大港', value: 99},
        {name:'东丽', value: 39},
        {name:'西青', value: 480},
        {name:'津南', value: 481},
        {name:'北辰', value: 482},
        {name:'武清', value: 483},
        {name:'宝坻', value: 484},
        {name:'宁河', value: 485},
        {name:'静海', value: 486},
        {name:'蓟县', value: 487},
    ];
    var max = 480, min = 9; // todo 
    var maxSize4Pin = 100, minSize4Pin = 20;

  var convertData = function (data) {
    var res = [];
    for (var i = 0; i < data.length; i++) {
        var geoCoord = geoCoordMap[data[i].name];
        if (geoCoord) {
            res.push({
                name: data[i].name,
                value: geoCoord.concat(data[i].value)
            });
        }
    }
    return res;
};


    option = {
        title: {
            text: '“大数据” - 天津市',
            subtext: '',
            x: 'center',
            textStyle: {
                color: '#ccc'
            }
        },
        tooltip: {
            trigger: 'item',
            formatter: function (params) {
              if(typeof(params.value)[2] == "undefined"){
              	return params.name + ' : ' + params.value;
              }else{
              	return params.name + ' : ' + params.value[2];
              }
            }
        },
        legend: {
            orient: 'vertical',
            y: 'bottom',
            x: 'right',
            data: ['credit_pm2.5'],
            textStyle: {
                color: '#fff'
            }
        },
        visualMap: {
            show: false,
            min: 0,
            max: 500,
            left: 'left',
            top: 'bottom',
            text: ['高', '低'], // 文本，默认为数值文本
            calculable: true,
            seriesIndex: [1],
            inRange: {
                // color: ['#3B5077', '#031525'] // 蓝黑
                // color: ['#ffc0cb', '#800080'] // 红紫
                // color: ['#3C3B3F', '#605C3C'] // 黑绿
                color: ['#0f0c29', '#302b63', '#24243e'] // 黑紫黑
                // color: ['#23074d', '#cc5333'] // 紫红
                // color: ['#00467F', '#A5CC82'] // 蓝绿
                // color: ['#1488CC', '#2B32B2'] // 浅蓝
                // color: ['#00467F', '#A5CC82'] // 蓝绿
                // color: ['#00467F', '#A5CC82'] // 蓝绿
                // color: ['#00467F', '#A5CC82'] // 蓝绿
                // color: ['#00467F', '#A5CC82'] // 蓝绿

            }
        },
        // toolbox: {
        //     show: true,
        //     orient: 'vertical',
        //     left: 'right',
        //     top: 'center',
        //     feature: {
        //             dataView: {readOnly: false},
        //             restore: {},
        //             saveAsImage: {}
        //             }
        // },
        geo: {
            show: true,
            map: 'tianjin',
            label: {
                normal: {
                    show: false
                },
                emphasis: {
                    show: false,
                }
            },
            roam: true,
            itemStyle: {
                normal: {
                    areaColor: '#031525',
                    borderColor: '#3B5077',
                },
                emphasis: {
                    areaColor: '#2B91B7',
                }
            }
        },
        series : [
      {
            name: 'credit_pm2.5',
            type: 'scatter',
            coordinateSystem: 'geo',
            data: convertData(data),
            symbolSize: function (val) {
                return val[2] / 10;
            },
            label: {
                normal: {
                    formatter: '{b}',
                    position: 'right',
                    show: true
                },
                emphasis: {
                    show: true
                }
            },
            itemStyle: {
                normal: {
                    color: '#05C3F9'
                }
            }
        },
         {
            type: 'map',
            map: 'tianjin',
            geoIndex: 0,
            aspectScale: 0.75, //长宽比
            showLegendSymbol: false, // 存在legend时显示
            label: {
                normal: {
                    show: false
                },
                emphasis: {
                    show: false,
                    textStyle: {
                        color: '#fff'
                    }
                }
            },
            roam: true,
            itemStyle: {
                normal: {
                    areaColor: '#031525',
                    borderColor: '#3B5077',
                },
                emphasis: {
                    areaColor: '#2B91B7'
                }
            },
            animation: false,
            data: data
        },
        {
            name: '点',
            type: 'scatter',
            coordinateSystem: 'geo',
            symbol: 'pin',
            symbolSize: function (val) {
                var a = (maxSize4Pin - minSize4Pin) / (max - min);
                var b = minSize4Pin - a*min;
                b = maxSize4Pin - a*max;
                return a*val[2]+b;
            },
            label: {
                normal: {
                    show: true,
                    textStyle: {
                        color: '#fff',
                        fontSize: 9,
                    }
                }
            },
            itemStyle: {
                normal: {
                    color: '#F62157', //标志颜色
                }
            },
            zlevel: 6,
            data: convertData(data),
        },
        {
            name: 'Top 5',
            type: 'effectScatter',
            coordinateSystem: 'geo',
            data: convertData(data.sort(function (a, b) {
                return b.value - a.value;
            }).slice(0, 5)),
            symbolSize: function (val) {
                return val[2] / 10;
            },
            showEffectOn: 'render',
            rippleEffect: {
                brushType: 'stroke'
            },
            hoverAnimation: true,
            label: {
                normal: {
                    formatter: '{b}',
                    position: 'right',
                    show: true
                }
            },
            itemStyle: {
                normal: {
                    color: '#05C3F9',
                    shadowBlur: 10,
                    shadowColor: '#05C3F9'
                }
            },
            zlevel: 1
        },
         
    ]
    };
    myChart.setOption(option);
});