echarts中百度地图使用百度自定义的主题色、mapStyle
六月初echarts百度地图使用百度地图内置的主题色样式方法！
在echarts中调用百度地图内置的主题色，实现代码：
效果预览：
主要实现代码：
mapStyle: {
style: 'dark',//百度地图定义的主题色名称
}由上图可以看出，百度地图的主题色已经由默认的主题色变换为百度提供的“黑夜风格”！
示例完整代码：
<!DOCTYPE html>
<html style="height: 100%">
<head>
<meta charset="utf-8">
</head>
<body style="height: 100%; margin: 0">
<div id="container" style="height: 100%"></div>
<script type="text/javascript" src="http://echarts.baidu.com/gallery/vendors/echarts/echarts.min.js"></script>
<script type="text/javascript" src="http://echarts.baidu.com/gallery/vendors/echarts-gl/echarts-gl.min.js"></script>
<script type="text/javascript" src="http://echarts.baidu.com/gallery/vendors/echarts-stat/ecStat.min.js"></script>
<script type="text/javascript" src="http://echarts.baidu.com/gallery/vendors/echarts/extension/dataTool.min.js"></script>
<script type="text/javascript" src="http://echarts.baidu.com/gallery/vendors/echarts/map/js/china.js"></script>
<script type="text/javascript" src="http://echarts.baidu.com/gallery/vendors/echarts/map/js/world.js"></script>
<script type="text/javascript" src="https://api.map.baidu.com/api?v=2.0&ak=这里需自己去百度地图控制台申请ak"></script>
<script type="text/javascript" src="http://echarts.baidu.com/gallery/vendors/echarts/extension/bmap.min.js"></script>
<script type="text/javascript" src="http://echarts.baidu.com/gallery/vendors/simplex.js"></script>
<script type="text/javascript">
var dom = document.getElementById("container");
var myChart = echarts.init(dom);
var app = {};
option = null;
var data = [{
name: '海门',
value: 9
},
{
name: '鄂尔多斯',
value: 12
},
{
name: '招远',
value: 12
},
{
name: '舟山',
value: 12
},
{
name: '齐齐哈尔',
value: 14
},
{
name: '盐城',
value: 15
},
{
name: '赤峰',
value: 16
},
];
var geoCoordMap = {
'海门': [121.15, 31.89],
'鄂尔多斯': [109.781327, 39.608266],
'招远': [120.38, 37.35],
'舟山': [122.207216, 29.985295],
'齐齐哈尔': [123.97, 47.33],
'盐城': [120.13, 33.38],
};
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;
};
function renderItem(params, api) {
var coords = [
[116.7, 39.53],
[103.73, 36.03],
[112.91, 27.87],
[120.65, 28.01],
[119.57, 39.95]
];
var points = [];
for (var i = 0; i < coords.length; i++) {
points.push(api.coord(coords[i]));
}
var color = api.visual('color');
return {
type: 'polygon',
shape: {
points: echarts.graphic.clipPointsByRect(points, {
x: params.coordSys.x,
y: params.coordSys.y,
width: params.coordSys.width,
height: params.coordSys.height
})
},
style: api.style({
fill: color,
stroke: echarts.color.lift(color)
})
};
}
option = {
// backgroundColor: '#404a59',
title: {
text: '全国主要城市空气质量',
subtext: 'data from PM25.in',
sublink: 'http://www.pm25.in',
left: 'center',
textStyle: {
color: '#fff'
}
},
tooltip: {
trigger: 'item'
},
bmap: {
center: [104.114129, 37.550339],
zoom: 5,
roam: true,
mapStyle: {
style: 'dark'
}
},
series: [{
name: 'pm2.5',
type: 'scatter',
coordinateSystem: 'bmap',
data: convertData(data),
symbolSize: function(val) {
return val[2] / 10;
},
label: {
normal: {
formatter: '{b}',
position: 'right',
show: false
},
emphasis: {
show: true
}
},
itemStyle: {
normal: {
color: '#ddb926'
}
}
},
{
name: 'Top 5',
type: 'effectScatter',
coordinateSystem: 'bmap',
data: convertData(data.sort(function(a, b) {
return b.value - a.value;
}).slice(0, 6)),
symbolSize: function(val) {
return val[2] / 10;
},
showEffectOn: 'emphasis',
rippleEffect: {
brushType: 'stroke'
},
hoverAnimation: true,
label: {
normal: {
formatter: '{b}',
position: 'right',
show: true
}
},
itemStyle: {
normal: {
color: '#f4e925',
shadowBlur: 10,
shadowColor: '#333'
}
},
zlevel: 1
},
{
type: 'custom',
coordinateSystem: 'bmap',
renderItem: renderItem,
itemStyle: {
normal: {
opacity: 0.5
}
},
animation: false,
silent: true,
data: [0],
z: -10
}
]
};;
if (option && typeof option === "object") {
myChart.setOption(option, true);
}
</script>
</body>
</html>以上便是示例的完整代码，可以直接复制到本地进行浏览。
注：百度地图的ak值需要自己去注册百度地图的控制台申请！
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