我正在使用帶註釋的google api折線圖。我如何更改字體大小和字體格式?如何增加註釋的字體大小和大膽的谷歌api圖線圖中的註釋值?
<script type="text/javascript">
google.load("visualization", "1", {packages: ["corechart"]});
google.setOnLoadCallback(drawChart);
function drawChart() {
var data = new google.visualization.DataTable();
data.addColumn('string', '');
data.addColumn({type: 'string', role: 'annotation'});
data.addColumn('number', '');
data.addRows([['2010', '67', 67]]);
data.addRows([['2011', '69', 69]]);
data.addRows([['2012', '68', 68]]);
data.addRows([['2013', '67', 67]]);
var options = {
width: 350,
height: 250,
pointSize: 5,
legend: {position: 'none'},
chartArea: {
left: 0,
top: 60,
width: 300,
height: 75},
vAxis: {
baselineColor: '#fff',
gridlines: {color: '#fff'},
minValue: 64,
maxValue: 71
},
tooltip: {trigger: 'none'},
enableInteractivity: false,
annotation: {
1: {
style: 'default'
}
},
series: {0: {color: '#4D7AD3'}, 1: {color: '#4D7AD3'}}
};
var chart = new google.visualization.LineChart(document.getElementById('chart_div'));
chart.draw(data, options);
}
</script>
<body>
<h2>Line Charts</h2>
<div id="chart_div"></div>
</body>
的API不支持樣式的註釋。您可以提交[功能請求](https://code.google.com/p/google-visualization-api-issues/issues/list)以添加支持。 – asgallant