//传递图表容器id
function downloadImpByChart(chartId){
var myChart = echarts.getInstanceByDom(document.getElementById(chartId));
var url = myChart.getConnectedDataURL({
pixelRatio: 5, //导出的图片分辨率比率,默认是1
backgroundColor: '#fff', //图表背景色
excludeComponents:[ //保存图表时忽略的工具组件,默认忽略工具栏
'toolbox'
],
type:'png' //图片类型支持png和jpeg
});
var $a = document.createElement('a');
var type = 'png';
$a.download = myChart.getOption().title[0].text + '.' + type;
$a.target = '_blank';
$a.href = url;
// Chrome and Firefox
if (typeof MouseEvent === 'function') {
var evt = new MouseEvent('click', {
view: window,
bubbles: true,
cancelable: false
});
$a.dispatchEvent(evt);
}
// IE
else {
var html = ''
+ '<body style="margin:0;">'
+ '<img src="' + url + '" style="max-width:100%;" title="' + myChart.getOption().title[0].text + '" />'
+ '</body>';
var tab = window.open();
tab.document.write(html);
}
};
http://www.wosoni.com/cnblogs-chunyangji-p-5818322.html
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