我正在检查这个图表库 highcharts .. 我想知道它如何在这个例子http://jsfiddle.net/wvT85/工具提示选项中的 stackTotal 中显示,是否有可能得到一个差异而不是总数:
$(function () {
var chart;
$(document).ready(function() {
chart = new Highcharts.Chart({
chart: {
renderTo: 'container',
type: 'column'
},
title: {
text: 'Total fruit consumtion, grouped by gender'
},
xAxis: {
categories: ['Apples', 'Oranges', 'Pears', 'Grapes', 'Bananas']
},
yAxis: {
allowDecimals: false,
min: 0,
title: {
text: 'Number of fruits'
}
},
tooltip: {
formatter: function() {
return '<b>'+ this.x +'</b><br/>'+
this.series.name +': '+ this.y +'<br/>'+
'Total: '+ this.point.stackTotal;
}
},
plotOptions: {
column: {
stacking: 'normal'
}
},
series: [{
name: 'John',
data: [5, 3, 4, 7, 2],
stack: 'male'
}, {
name: 'Joe',
data: [3, 4, 4, 2, 5],
stack: 'male'
}, {
name: 'John',
data: [2, 5, 6, 2, 1],
stack: 'male2'
}, {
name: 'Joe',
data: [3, 0, 4, 4, 3],
stack: 'male2'
}]
});
});
});