我目前正在测试谷歌图表,并且难以指定我自己的自定义工具提示。
我的数据声明如下
var data = new google.visualization.DataTable();
data.addColumn('number', 'X');
data.addColumn('number', 'Dogs');
data.addColumn('number', 'Cats');
data.addColumn({type: 'string', role: 'tooltip', p: {'html':true}});
data.addRows([0, 0, 0, 'hello'], [1, 10, 5, 'hello'],
[2, 23, 15, 'hello'],[3, 17, 9, 'hello'], [4, 18, 10, 'hello'],
[5, 9, 5, 'hello'],
请参阅此jsFiddle http://jsfiddle.net/SecretSquirrel/rbwyhx1q/
自定义工具提示似乎只影响第一个数据列?
我认为它非常有限,每行只允许1个工具提示,但如果这只是第一列的1个工具提示,这真的很无用。
答案 0 :(得分:2)
您必须为第二次移植添加另一个工具提示列。
google.load('visualization', '1', {packages: ['corechart']});
google.setOnLoadCallback(drawChart);
function drawChart() {
var data = new google.visualization.DataTable();
data.addColumn('number', 'X');
data.addColumn('number', 'Dogs');
data.addColumn({type: 'string', role: 'tooltip', p: {'html':true}});
data.addColumn('number', 'Cats');
data.addColumn({type: 'string', role: 'tooltip', p: {'html':true}});
data.addRows([
[0, 0,'custom', 0, 'hello'], [1, 10,'custom', 5, 'hello'], [2, 23,'custom', 15, 'hello'],
[3, 17,'custom', 9, 'hello'], [4, 18,'custom', 10, 'hello'], [5, 9,'custom', 5, 'hello'],
[6, 11,'custom', 3, 'hello'], [7, 27,'custom', 19, 'hello'], [8, 33,'custom', 25, 'hello'],
[9, 40,'custom', 32, 'hello'], [10, 32,'custom', 24, 'hello'], [11, 35,'custom', 27, 'hello'],
[12, 30,'custom', 22, 'hello'], [13, 40,'custom', 32, 'hello'], [14, 42,'custom', 34, 'hello'],
[15, 47,'custom', 39,'hello'], [16, 44,'custom', 36,'hello'], [17, 48,'custom', 40, 'hello'],
[18, 52,'custom', 44,'hello'], [19, 54,'custom', 46,'hello'], [20, 42,'custom', 34, 'hello'],
[21, 55,'custom', 47,'hello'], [22, 56,'custom', 48,'hello'], [23, 57,'custom', 49,'hello']
]);
var options = {
width: 1000,
height: 563,
hAxis: {
title: 'Time'
},
vAxis: {
title: 'Popularity'
},
series: {
1: {curveType: 'function'}
}
};
var chart = new google.visualization.LineChart(document.getElementById('ex2'));
chart.draw(data, options);
}

<script type="text/javascript" src="https://www.google.com/jsapi?autoload={'modules':[{'name':'visualization','version':'1','packages':['corechart']}]}"></script>
<div id="ex2"></div>
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