本文介绍了HighCharts 3.0中有两个不同的阈值的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
使用HighCharts 3.0,现在可以指示高于和低于一个阈值的颜色。像这样的例子:With HighCharts 3.0, it is now possible to indicate to colors above and below one threshold. Like this example :
http://jsfiddle.net/highcharts/YWVHx/
Following code :
$(function () {
$.getJSON('http://www.highcharts.com/samples/data/jsonp.php?filename=range.json&callback=?', function(data) {
$('#container').highcharts({
chart: {
type: 'arearange'
},
title: {
text: 'Temperature variation by day'
},
xAxis: {
type: 'datetime'
},
yAxis: {
title: {
text: null
}
},
tooltip: {
crosshairs: true,
shared: true,
valueSuffix: '°C'
},
legend: {
enabled: false
},
series: [{
name: 'Temperatures',
data: data,
color: '#FF0000',
negativeColor: '#0088FF'
}]
});
});
});
Is it possible to have another threshold with a third color, like this for example :
Thanks in advance for your help.
解决方案
It actually is possible if you don't mind plotting the data twice.
$('#container').highcharts({
chart: {
type: 'arearange'
},
title: {
text: 'Temperature variation by day'
},
xAxis: {
type: 'datetime'
},
yAxis: {
title: {
text: null
}
},
tooltip: {
crosshairs: true,
shared: true,
valueSuffix: '°C'
},
legend: {
enabled: false
},
series: [{
name: 'Temperatures',
threshold : 0,
data: data,
color: 'orange',
negativeColor: 'blue'
},
{
name: 'Temperatures',
threshold : 10,
data: data,
color: 'red',
negativeColor: 'transparent'
}]
});
});
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