數據可視化大屏展示使用頻率最高的應該就是地圖了,無論是做功能性的還是做裝飾用的,都是非常實用的,放上它項目纔有了靈魂,顯得非常的炫酷。這裏分別對地圖下鑽,遷徙圖,地圖下鑽+遷徙圖的合併,記錄介紹一下:
一、地圖下鑽
先看下效果:
核心源碼(js文件):
//地圖容器
var chart = echarts.init(document.getElementById('main'));
//34個省、市、自治區的名字拼音映射數組
var provinces = {
//23個省
"臺灣": "taiwan",
"河北": "hebei",
"山西": "shanxi",
"遼寧": "liaoning",
"吉林": "jilin",
"黑龍江": "heilongjiang",
"江蘇": "jiangsu",
"浙江": "zhejiang",
"安徽": "anhui",
"福建": "fujian",
"江西": "jiangxi",
"山東": "shandong",
"河南": "henan",
"湖北": "hubei",
"湖南": "hunan",
"廣東": "guangdong",
"海南": "hainan",
"四川": "sichuan",
"貴州": "guizhou",
"雲南": "yunnan",
"陝西": "shanxi1",
"甘肅": "gansu",
"青海": "qinghai",
//5個自治區
"新疆": "xinjiang",
"廣西": "guangxi",
"內蒙古": "neimenggu",
"寧夏": "ningxia",
"西藏": "xizang",
//4個直轄市
"北京": "beijing",
"天津": "tianjin",
"上海": "shanghai",
"重慶": "chongqing",
//2個特別行政區
"香港": "xianggang",
"澳門": "aomen"
};
//直轄市和特別行政區-只有二級地圖,沒有三級地圖
var special = ["北京", "天津", "上海", "重慶", "香港", "澳門"];
var mapdata = [];
//繪製全國地圖
$.getJSON('static/map/china.json', function(data) {
d = [];
for (var i = 0; i < data.features.length; i++) {
d.push({
name: data.features[i].properties.name
})
}
mapdata = d;
//註冊地圖
echarts.registerMap('china', data);
//繪製地圖
renderMap('china', d);
});
//地圖點擊事件
chart.on('click', function(params) {
console.log(params);
if (params.name in provinces) {
//如果點擊的是34個省、市、自治區,繪製選中地區的二級地圖
$.getJSON('static/map/province/' + provinces[params.name] + '.json', function(data) {
echarts.registerMap(params.name, data);
var d = [];
for (var i = 0; i < data.features.length; i++) {
d.push({
name: data.features[i].properties.name
})
}
renderMap(params.name, d);
});
} else if (params.seriesName in provinces) {
//如果是【直轄市/特別行政區】只有二級下鑽
if (special.indexOf(params.seriesName) >= 0) {
renderMap('china', mapdata);
} else {
//顯示縣級地圖
$.getJSON('static/map/city/' + cityMap[params.name] + '.json', function(data) {
echarts.registerMap(params.name, data);
var d = [];
for (var i = 0; i < data.features.length; i++) {
d.push({
name: data.features[i].properties.name
})
}
renderMap(params.name, d);
});
}
} else {
renderMap('china', mapdata);
}
});
//初始化繪製全國地圖配置
var option = {
title: {
text: '中國地圖下鑽',
subtext: '三級下鑽',
link: 'http://www.ldsun.com',
left: 'center',
textStyle: {
color: '#fff',
fontSize: 16,
fontWeight: 'normal',
fontFamily: "Microsoft YaHei"
},
subtextStyle: {
color: '#ccc',
fontSize: 13,
fontWeight: 'normal',
fontFamily: "Microsoft YaHei"
},
},
tooltip: {
trigger: 'item',
formatter: '{b}'
},
animationDuration: 1000,
animationEasing: 'cubicOut',
animationDurationUpdate: 1000,
};
function renderMap(map, data) {
option.title.subtext = map;
option.series = [{
name: map,
type: 'map',
mapType: map,
roam: false,
zoom: 1,
nameMap: {
'china': '中國'
},
label: {
emphasis: {
show: false
}
},
roam: true,
itemStyle: {
normal: {
borderColor: 'rgba(147, 235, 248, 1)',
borderWidth: 1,
areaColor: {
type: 'radial',
x: 0.5,
y: 0.5,
r: 0.8,
colorStops: [{
offset: 0,
color: 'rgba(175,238,238, 0)' // 0% 處的顏色
}, {
offset: 1,
color: 'rgba( 47,79,79, .1)' // 100% 處的顏色
}],
globalCoord: false // 缺省爲 false
},
shadowColor: 'rgba(128, 217, 248, 1)',
shadowOffsetX: -2,
shadowOffsetY: 2,
shadowBlur: 10
},
emphasis: {
areaColor: '#389BB7',
borderWidth: 0
}
},
data: data
}];
//渲染地圖
chart.setOption(option);
}
二、地圖遷徙線
先看下效果:
核心源碼(js文件):
$(function () {
echart_map();
// echart_map中國地圖
function echart_map() {
// 基於準備好的dom,初始化echarts實例
var myChart = echarts.init(document.getElementById('chart_map'));
var mapName = 'china'
var data = []
var toolTipData = [];
/*獲取地圖數據*/
myChart.showLoading();
var mapFeatures = echarts.getMap(mapName).geoJson.features;
myChart.hideLoading();
var geoCoordMap = {
'福州': [119.4543, 25.9222],
'長春': [125.8154, 44.2584],
'重慶': [107.7539, 30.1904],
'西安': [109.1162, 34.2004],
'成都': [103.9526, 30.7617],
'常州': [119.4543, 31.5582],
'北京': [116.4551, 40.2539],
'北海': [109.314, 21.6211],
'海口': [110.3893, 19.8516],
'長沙': [113.019455, 28.200103],
'上海': [121.40, 31.73],
'內蒙古': [106.82, 39.67]
};
var GZData = [
[{
name: '長沙'
}, {
name: '福州',
value: 95
}],
[{
name: '長沙'
}, {
name: '長春',
value: 80
}],
[{
name: '長沙'
}, {
name: '重慶',
value: 70
}],
[{
name: '長沙'
}, {
name: '西安',
value: 60
}],
[{
name: '長沙'
}, {
name: '成都',
value: 50
}],
[{
name: '長沙'
}, {
name: '常州',
value: 40
}],
[{
name: '長沙'
}, {
name: '北京',
value: 30
}],
[{
name: '長沙'
}, {
name: '北海',
value: 20
}],
[{
name: '長沙'
}, {
name: '海口',
value: 10
}],
[{
name: '長沙'
}, {
name: '上海',
value: 80
}],
[{
name: '長沙'
}, {
name: '內蒙古',
value: 80
}]
];
var convertData = function (data) {
var res = [];
for (var i = 0; i < data.length; i++) {
var dataItem = data[i];
var fromCoord = geoCoordMap[dataItem[0].name];
var toCoord = geoCoordMap[dataItem[1].name];
if (fromCoord && toCoord) {
res.push({
fromName: dataItem[0].name,
toName: dataItem[1].name,
coords: [fromCoord, toCoord]
});
}
}
return res;
};
var color = ['#c5f80e'];
var series = [];
[
['石家莊', GZData]
].forEach(function (item, i) {
series.push({
name: item[0],
type: 'lines',
zlevel: 2,
symbol: ['none', 'arrow'],
symbolSize: 10,
effect: {
show: true,
period: 6,
trailLength: 0,
symbol: 'arrow',
symbolSize: 5
},
lineStyle: {
normal: {
color: color[i],
width: 1,
opacity: 0.6,
curveness: 0.2
}
},
data: convertData(item[1])
}, {
name: item[0],
type: 'effectScatter',
coordinateSystem: 'geo',
zlevel: 2,
rippleEffect: {
brushType: 'stroke'
},
label: {
normal: {
show: true,
position: 'right',
formatter: '{b}'
}
},
symbolSize: function (val) {
return val[2] / 8;
},
itemStyle: {
normal: {
color: color[i]
}
},
data: item[1].map(function (dataItem) {
return {
name: dataItem[1].name,
value: geoCoordMap[dataItem[1].name].concat([dataItem[1].value])
};
})
});
});
option = {
tooltip: {
trigger: 'item'
},
geo: {
map: 'china',
label: {
emphasis: {
show: false
}
},
roam: true,
itemStyle: {
normal: {
// color: '#ddd',
borderColor: 'rgba(147, 235, 248, 1)',
borderWidth: 1,
areaColor: {
type: 'radial',
x: 0.5,
y: 0.5,
r: 0.8,
colorStops: [{
offset: 0,
color: 'rgba(175,238,238, 0)' // 0% 處的顏色
}, {
offset: 1,
color: 'rgba( 47,79,79, .1)' // 100% 處的顏色
}],
globalCoord: false // 缺省爲 false
},
shadowColor: 'rgba(128, 217, 248, 1)',
// shadowColor: 'rgba(255, 255, 255, 1)',
shadowOffsetX: -2,
shadowOffsetY: 2,
shadowBlur: 10
},
emphasis: {
areaColor: '#389BB7',
borderWidth: 0
}
}
},
series: series
};
// 使用剛指定的配置項和數據顯示圖表。
myChart.setOption(option);
window.addEventListener("resize", function () {
myChart.resize();
});
}
});
三、兩者進行合併(地圖下鑽+遷徙圖)
效果: