我想画一个简单的柱形图 in HTML-JavaScript using google chart。我用过Google materiel chart CDN绘制柱形图有 4 行 4 种不同颜色.
我尝试了很多选择，但没有一个能正常工作。当我使用过colors: ['#b0120a', '#004411', '#ffab91', '#004411']所有 4 列中仅显示第一种颜色。我也尝试过{role:'style'}但仍然不工作。
<html>
<head>
<script type="text/javascript" src="https://www.gstatic.com/charts/loader.js"></script>
<script type="text/javascript">
//google.charts.load('current', {'packages':['bar']});
google.charts.load('visualization', '1', {packages: ['corechart', 'bar']});
google.charts.setOnLoadCallback(drawChart);
function drawChart() {
/*var data = google.visualization.arrayToDataTable([
['Class', 'Total',{role: 'style'}],
['A', 10,'color: #b0120a'],
['B', 30,'color: #004411'],
['C', 20,'color: #ffab91'],
['D', 30,'color: #004411']
]);*/
var data = google.visualization.arrayToDataTable([
['Class', 'Total'],
['A', 10],
['B', 30],
['C', 20],
['D', 30]
]);
var options = {
isStacked: true,
title: 'Class wise total students',
colors: ['#b0120a', '#004411', '#ffab91', '#004411'],
};
var chart = new google.charts.Bar(document.getElementById('columnchart_material'));
chart.draw(data, google.charts.Bar.convertOptions(options));
}
</script>
</head>
<body>
<div id="columnchart_material" style="width: 100%; height: 100%;"></div>
</body>
</html>
The chart is like:
但我想要 4 列有 4 种不同的颜色。 提前致谢。
是的，我终于把这个改成了正确的，而且正是我想要的。如果您需要的话，请参阅下面的代码。
<html>
<head>
<script type="text/javascript" src="https://www.gstatic.com/charts/loader.js"></script>
<script type="text/javascript">
google.charts.load('visualization', '1.1', {packages: ['corechart']});
google.charts.setOnLoadCallback(drawChart);
function drawChart() {
var data = google.visualization.arrayToDataTable([
['Class', 'Total',{role: 'style'}],
['A', 10,'color: #b0120a'],
['B', 30,'color: #004411'],
['C', 20,'color: #ffab91'],
['D', 30,'color: #004411']
]);
var options = {
isStacked: false,
title: 'Class wise total students',
};
var chart = new google.visualization.ColumnChart(document.getElementById('columnchart_material'));
chart.draw(data, options);
}
</script>
</head>
<body>
<div id="columnchart_material" style="width: 100%; height: 100%;"></div>
</body>
</html>
I need to changed the definition of chart here. From var chart = new google.charts.Bar(document.getElementById('columnchart_material')); to the modified one as var chart = new google.visualization.ColumnChart(document.getElementById('columnchart_material'));. It's working now.
The chart is like ....
