我正在绘制一个图表，其中“ y”轴为数值，而“ x”轴为日期时间值。 我能够处理3000个项目的JSON对象。但是，由于我们的业务规则，我们还需要在图表的工具提示中显示时间：小时+分钟。
这改变了一切！
现在该图表大约需要15秒才能绘制2000条记录。这是无法接受的。
我可以清楚地看到，当删除Date对象的时间部分时，图表可以完美运行。只有在添加小时和分钟后，性能才会受到影响。
尝试不同的方法，我意识到您的图表应该支持我正在使用的数据量，因为它并不庞大。
我们喜欢这些图表，但是性能是我们继续使用您的产品的关键。 您能帮我解决这个问题吗？
请检查此小提琴，以便您了解我的问题。随时从DateUtc创建中删除小时和分钟变量：
https://jsfiddle.net/17a3jry9/7/
谢谢！
var pointStart = new Date();
var data = [{"date":"2017-11-08","time":"1712","perc":10},{"date":"2017-11-08","time":"1608","perc":10},{"date":"2017-11-08","time":"1506","perc":10},{"date":"2017-11-08","time":"1408","perc":10},{"date":"2017-11-08","time":"1309","perc":10},{"date":"2017-11-08","time":"1207","perc":10},{"date":"2017-11-08","time":"1110","perc":10},{"date":"2017-11-08","time":"1003","perc":10},{"date":"2017-11-08","time":"0910","perc":10},{"date":"2017-11-08","time":"0810","perc":10},{"date":"2017-11-08","time":"0708","perc":10},{"date":"2017-11-09","time":"1710","perc":10},{"date":"2017-11-09","time":"1604","perc":10},{"date":"2017-11-09","time":"1510","perc":10},{"date":"2017-11-09","time":"1406","perc":10},{"date":"2017-11-09","time":"1310","perc":10},{"date":"2017-11-09","time":"1205","perc":10},{"date":"2017-11-09","time":"1107","perc":10},{"date":"2017-11-09","time":"1010","perc":10},{"date":"2017-11-09","time":"0912","perc":10},{"date":"2017-11-09","time":"0806","perc":10}{"date":"2018-10-25","time":"0709","perc":10},{"date":"2018-10-25","time":"1009","perc":10},{"date":"2018-10-25","time":"1208","perc":10},{"date":"2018-10-25","time":"1309","perc":10},{"date":"2018-10-25","time":"1410","perc":10},{"date":"2018-10-25","time":"1510","perc":10},{"date":"2018-10-25","time":"1702","perc":10},{"date":"2018-10-26","time":"1409","perc":10},{"date":"2018-10-26","time":"0710","perc":10},{"date":"2018-10-26","time":"1505","perc":10},{"date":"2018-10-26","time":"1704","perc":10},{"date":"2018-10-29","time":"0708","perc":10},{"date":"2018-10-29","time":"1007","perc":10},{"date":"2018-10-29","time":"1208","perc":10},{"date":"2018-10-29","time":"1406","perc":10},{"date":"2018-10-29","time":"1509","perc":10},{"date":"2018-10-29","time":"1610","perc":10},{"date":"2018-10-30","time":"0710","perc":10},{"date":"2018-10-30","time":"1010","perc":10},{"date":"2018-10-30","time":"1207","perc":10},{"date":"2018-10-30","time":"1409","perc":10},{"date":"2018-10-30","time":"1510","perc":10},{"date":"2018-10-30","time":"1709","perc":10},{"date":"2018-10-31","time":"0708","perc":10},{"date":"2018-10-31","time":"1009","perc":10},{"date":"2018-10-31","time":"1206","perc":10},{"date":"2018-10-31","time":"1409","perc":10},{"date":"2018-10-31","time":"1509","perc":10},{"date":"2018-10-31","time":"1708","perc":10},{"date":"2018-11-01","time":"0707","perc":10},{"date":"2018-11-01","time":"1007","perc":10},{"date":"2018-11-01","time":"1108","perc":10},{"date":"2018-11-01","time":"1250","perc":10},{"date":"2018-11-01","time":"1509","perc":10},{"date":"2018-11-01","time":"1407","perc":10},{"date":"2018-11-01","time":"1709","perc":10},{"date":"2018-11-02","time":"0708","perc":10},{"date":"2018-11-02","time":"1007","perc":10},{"date":"2018-11-02","time":"1108","perc":10},{"date":"2018-11-02","time":"1210","perc":10},{"date":"2018-11-02","time":"1407","perc":10},{"date":"2018-11-02","time":"1509","perc":10},{"date":"2018-11-02","time":"1608","perc":10},{"date":"2018-11-02","time":"1715","perc":10},{"date":"2018-11-05","time":"0707","perc":10},{"date":"2018-11-05","time":"1007","perc":10},{"date":"2018-11-05","time":"1209","perc":10},{"date":"2018-11-05","time":"1408","perc":10},{"date":"2018-11-05","time":"1509","perc":10},{"date":"2018-11-05","time":"1611","perc":10},{"date":"2018-11-05","time":"1715","perc":10},{"date":"2018-11-06","time":"0708","perc":10},{"date":"2018-11-06","time":"1007","perc":10},{"date":"2018-11-06","time":"1201","perc":10},{"date":"2018-11-06","time":"1410","perc":10},{"date":"2018-11-06","time":"1510","perc":10},{"date":"2018-11-06","time":"1709","perc":10},{"date":"2018-11-07","time":"0708","perc":10},{"date":"2018-11-07","time":"1007","perc":10},{"date":"2018-11-07","time":"1209","perc":10},{"date":"2018-11-07","time":"1307","perc":10},{"date":"2018-11-07","time":"1410","perc":10},{"date":"2018-11-07","time":"1506","perc":10},{"date":"2018-11-07","time":"1708","perc":10},{"date":"2018-11-08","time":"0707","perc":10},{"date":"2018-11-08","time":"1009","perc":10},{"date":"2018-11-08","time":"1207","perc":10},{"date":"2018-11-08","time":"1309","perc":10},{"date":"2018-11-08","time":"1412","perc":10},{"date":"2018-11-08","time":"1508","perc":10}];
var newSeries = data.map(function (key) {
var utilDate = new Date(key.date);
var hours = parseInt(key.time.slice(0, 2));
var minutes = parseInt(key.time.slice(2, 4));
return { x: Date.UTC(utilDate.getFullYear(), utilDate.getMonth(), utilDate.getDate(), hours, minutes), y: key.perc, key: key.id };
});
Highcharts.stockChart('container', {
xAxis: {
type: 'datetime',
title: {
text: 'Date'
}
},
yAxis: {
title: {
text: 'Util (%)'
},
min: 0
},
tooltip: {
headerFormat: '<b>{point.x: %A, %b %e, %I:%M %p}</b><br>'
//pointFormat: '{point.x:%e. %b}: {point.y:.2f} m'
},
colors: ['teal', 'red'],
// Define the data points. All series have a dummy year
// of 1970/71 in order to be compared on the same x axis. Note
// that in JavaScript, months start at 0 for January, 1 for February etc.
series: [{
name: "Util",
data: newSeries
}],
title: {
text: 'Util Movement'
},
subtitle: {
text: ""
},
plotOptions: {
series: {
cursor: 'pointer',
turboThreshold: 10000,
point: {
events: {
}
},
label: {
connectorAllowed: false
},
pointStart: pointStart.getFullYear()
}
},
responsive: {
rules: [{
condition: {
maxWidth: 200
},
chartOptions: {
legend: {
layout: 'horizontal',
align: 'center',
verticalAlign: 'bottom'
}
}
}]
}
});
答案 0 :(得分：0)
请查看浏览器控制台，那里有错误信息：user.commented。
这意味着您具有未排序的数据，因此需要对它们进行排序：
Highcharts error #15: www.highcharts.com/errors/15