我有以下代码:
$(function () {
$('#container').highcharts({
chart: {
type: 'spline',
zoomType: 'xy',
borderRadius: 20,
borderWidth: 2,
},
credits: {
enabled: false
},
title: {
text: 'CO2 (Latest 7-days)'
},
exporting: {
enabled: false
},
xAxis: {
type: 'datetime',
labels: {
overflow: 'justify'
},
startOnTick: true,
showFirstLabel: true,
endOnTick: true,
showLastLabel: true,
categories: dateAndTimeArray,
tickInterval: 10,
labels: {
formatter: function() {
return this.value.toString().substring(0, 6);
},
rotation: 0.1,
align: 'left',
step: 20,
enabled: true
},
style: {
fontSize: '8px'
}
},
yAxis: {
title: {
text: 'CO2'
},
labels: {
formatter: function() {
return this.value +'°'
}
}
},
legend: {
enabled: false
},
tooltip: {
// crosshairs: true,
shared: true,
},
plotOptions: {
spline: {
marker: {
radius: 4,
lineColor: '#666666',
lineWidth: 1
}
}
},
series: [{
name: "CR3000Tower",
data: chartData,
marker: {
enabled: false
}
} ]
});
});
它产生以下输出:
我想在小数点后2处截断工具箱值。这样工具提示值将是414.26而不是长值。请帮忙。感谢。