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【ECharts官方示例】"北京公交路线 - 线特效" bug修正版

2016-11-23 14:58 567 查看

官方Demo地址： http://echarts.baidu.com/demo.html#lines-bmap-effect

源代码地址： https://github.com/ecomfe/echarts/blob/master/test/lines-bus.html

下载下来以后不能运行。需要自己引入jquery，然后浏览器还会抛出异常

Uncaught TypeError: data.map is not a function

，解决办法官方有人提到： https://github.com/ecomfe/echarts/issues/3821

全部修复以后代码如下：

# lines-bmap-effect.html

<!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/jquery/jquery.js"></script>
<script type="text/javascript" src="http://echarts.baidu.com/gallery/vendors/echarts/echarts-all-3.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="http://api.map.baidu.com/api?v=2.0&ak=ZUONbpqGBsYGXNIYHicvbAbM"></script>
<script type="text/javascript" src="http://echarts.baidu.com/gallery/vendors/echarts/extension/bmap.min.js"></script>
<script type="text/javascript">
var dom = document.getElementById("container");
var myChart = echarts.init(dom);
var app = {};
option = null;
app.title = '北京公交路线 - 线特效';

$.getJSON('lines-bus.json', function(data) {
var hStep = 300 / (data.length - 1);
var busLines = [].concat.apply([], data.map(function (busLine, idx) {
var prevPt;
var points = [];
for (var i = 0; i < busLine.length; i += 2) {
var pt = [busLine[i], busLine[i + 1]];
if (i > 0) {
pt = [
prevPt[0] + pt[0],
prevPt[1] + pt[1]
];
}
prevPt = pt;

points.push([pt[0] / 1e4, pt[1] / 1e4]);
}
return {
coords: points,
lineStyle: {
normal: {
color: echarts.color.modifyHSL('#5A94DF', Math.round(hStep * idx))
}
}
};
}));
myChart.setOption(option = {
bmap: {
center: [116.46, 39.92],
zoom: 10,
roam: true,
mapStyle: {
'styleJson': [
{
'featureType': 'water',
'elementType': 'all',
'stylers': {
'color': '#031628'
}
},
{
'featureType': 'land',
'elementType': 'geometry',
'stylers': {
'color': '#000102'
}
},
{
'featureType': 'highway',
'elementType': 'all',
'stylers': {
'visibility': 'off'
}
},
{
'featureType': 'arterial',
'elementType': 'geometry.fill',
'stylers': {
'color': '#000000'
}
},
{
'featureType': 'arterial',
'elementType': 'geometry.stroke',
'stylers': {
'color': '#0b3d51'
}
},
{
'featureType': 'local',
'elementType': 'geometry',
'stylers': {
'color': '#000000'
}
},
{
'featureType': 'railway',
'elementType': 'geometry.fill',
'stylers': {
'color': '#000000'
}
},
{
'featureType': 'railway',
'elementType': 'geometry.stroke',
'stylers': {
'color': '#08304b'
}
},
{
'featureType': 'subway',
'elementType': 'geometry',
'stylers': {
'lightness': -70
}
},
{
'featureType': 'building',
'elementType': 'geometry.fill',
'stylers': {
'color': '#000000'
}
},
{
'featureType': 'all',
'elementType': 'labels.text.fill',
'stylers': {
'color': '#857f7f'
}
},
{
'featureType': 'all',
'elementType': 'labels.text.stroke',
'stylers': {
'color': '#000000'
}
},
{
'featureType': 'building',
'elementType': 'geometry',
'stylers': {
'color': '#022338'
}
},
{
'featureType': 'green',
'elementType': 'geometry',
'stylers': {
'color': '#062032'
}
},
{
'featureType': 'boundary',
'elementType': 'all',
'stylers': {
'color': '#465b6c'
}
},
{
'featureType': 'manmade',
'elementType': 'all',
'stylers': {
'color': '#022338'
}
},
{
'featureType': 'label',
'elementType': 'all',
'stylers': {
'visibility': 'off'
}
}
]
}
},
series: [{
type: 'lines',
coordinateSystem: 'bmap',
polyline: true,
data: busLines,
silent: true,
lineStyle: {
normal: {
// color: '#c23531',
// color: 'rgb(200, 35, 45)',
opacity: 0.2,
width: 1
}
},
progressiveThreshold: 500,
progressive: 200
}, {
type: 'lines',
coordinateSystem: 'bmap',
polyline: true,
data: busLines,
lineStyle: {
normal: {
width: 0
}
},
effect: {
constantSpeed: 20,
show: true,
trailLength: 0.1,
symbolSize: 1.5
},
zlevel: 1
}]
});
});;
if (option && typeof option === "object") {
myChart.setOption(option, true);
}
</script>
</body>
</html>

# lines-bus.json

可以在这里下载数据 : https://raw.githubusercontent.com/ecomfe/echarts/master/test/data/lines-bus.json

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