这里举例line的下载按钮
template
<span class="btn green pointer" @click='downLoad'>导出</span><div id="echarts" class="echarts"></div>method
download:function() {
var myChart = echarts.getInstanceById ($("#echarts").attr("_echarts_instance_"));//通过实例id获取
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);
}
},