在Google 核心图表中,API图例属性可以正常工作,但是当我在材料图表上尝试使用它时,该属性无法正常工作。
var data = new google.visualization.DataTable();
function drawChart() {
data.addColumn('string', '');
data.addColumn('number', '');
data.addColumn({type:'string', role: 'style' });
data.addRows([
['Initiated', 5,'#3366cc'],
['Started', 3,'109618'],
['Completed', 1,'#dc3912'],
['Ongoing', 6,'#ff9900']
]);
var options = {
title: '',
bars: 'vertical',
legend: { position: "top" },
bar: {groupWidth: "40%"},
};
chartGlobal = new google.charts.Bar(document.getElementById('myDiv'));
chartGlobal.draw(data, google.charts.Bar.convertOptions(options));
}