我正在尝试使用可以向下钻取几个级别的高图生成折线图。Highchart 具有柱形图的此功能，但我找不到折线图的任何内容。如果我尝试将图表类型从列更改为行，那么我会得到一条线作为图表，无法进一步深入研究。有什么方法可以将向下钻取功能应用于高图表中的折线图。这是我拥有的代码：
$(function () {
var chart;
$(document).ready(function() {
var colors = Highcharts.getOptions().colors,
categories = ['MSIE', 'Firefox', 'Chrome', 'Safari', 'Opera'],
name = 'Browser brands',
data = [{
y: 55.11,
color: colors[0],
drilldown: {
name: 'MSIE versions',
categories: ['MSIE 6.0', 'MSIE 7.0', 'MSIE 8.0', 'MSIE 9.0'],
data: [10.85, 7.35, 33.06, 2.81],
color: colors[0]
}
}, {
y: 21.63,
color: colors[1],
drilldown: {
name: 'Firefox versions',
categories: ['Firefox 2.0', 'Firefox 3.0', 'Firefox 3.5', 'Firefox 3.6', 'Firefox 4.0'],
data: [0.20, 0.83, 1.58, 13.12, 5.43],
color: colors[1]
}
}, {
y: 11.94,
color: colors[2],
drilldown: {
name: 'Chrome versions',
categories: ['Chrome 5.0', 'Chrome 6.0', 'Chrome 7.0', 'Chrome 8.0', 'Chrome 9.0',
'Chrome 10.0', 'Chrome 11.0', 'Chrome 12.0'],
data: [0.12, 0.19, 0.12, 0.36, 0.32, 9.91, 0.50, 0.22],
color: colors[2]
}
}, {
y: 7.15,
color: colors[3],
drilldown: {
name: 'Safari versions',
categories: ['Safari 5.0', 'Safari 4.0', 'Safari Win 5.0', 'Safari 4.1', 'Safari/Maxthon',
'Safari 3.1', 'Safari 4.1'],
data: [4.55, 1.42, 0.23, 0.21, 0.20, 0.19, 0.14],
color: colors[3]
}
}, {
y: 2.14,
color: colors[4],
drilldown: {
name: 'Opera versions',
categories: ['Opera 9.x', 'Opera 10.x', 'Opera 11.x'],
data: [ 0.12, 0.37, 1.65],
color: colors[4]
}
}];
function setChart(name, categories, data, color) {
chart.xAxis[0].setCategories(categories, false);
chart.series[0].remove(false);
chart.addSeries({
name: name,
data: data,
color: color || 'white'
}, false);
chart.redraw();
}
chart = new Highcharts.Chart({
chart: {
renderTo: 'container',
type: 'line'
},
title: {
text: 'Browser market share, April, 2011'
},
subtitle: {
text: 'Click the columns to view versions. Click again to view brands.'
},
xAxis: {
categories: categories
},
yAxis: {
title: {
text: 'Total percent market share'
}
},
plotOptions: {
column: {
cursor: 'pointer',
point: {
events: {
click: function() {
var drilldown = this.drilldown;
if (drilldown) { // drill down
setChart(drilldown.name, drilldown.categories, drilldown.data, drilldown.color);
} else { // restore
setChart(name, categories, data);
}
}
}
},
dataLabels: {
enabled: true,
color: colors[0],
style: {
fontWeight: 'bold'
},
formatter: function() {
return this.y +'%';
}
}
}
},
tooltip: {
formatter: function() {
var point = this.point,
s = this.x +':<b>'+ this.y +'% market share</b><br/>';
if (point.drilldown) {
s += 'Click to view '+ point.category +' versions';
} else {
s += 'Click to return to browser brands';
}
return s;
}
},
series: [{
name: name,
data: data,
color: 'white'
}],
exporting: {
enabled: false
}
});
});
});
</script>
</head>
<body>
请让我知道是否有可能的解决方法。