我正在尝试从UI创建动态数量的系列。选择后，后端会更新一个条目。虽然图表在大多数时间运行良好。在某个随机时间，这两个系列在http://jsfiddle.net/cRgUr/中不同步 并在几秒钟后恢复同步。我已经提到以下链接进行解决，但仍然看到了问题。 Chart not moving fluently when adding value to two lines on interval和Updating spline chart two lines on top of eachother 以下是代码段：
function getInitialData(series){
var arrayOfValues=[];
$http({
mode:'cors',
method:'GET',
url: '/getData',
headers: { 'Content-Type':'application/json' },
cache: false,
}).success(function(data) {
arrayOfValues.push(/*populated by backend*/); // E.g values for y for number of series selected. If 2 series are to be drawn, at a time this array will contain arrayOfValue[0]= y value for series 1, arrayOfValue[1]=y value for series 2
}
drawgraph(series,arrayOfValues,newWidgetMetrics/*widget selected from UI*/);
} ).error(function(data) {
});
function drawgraph(series,arrayOfValues,newWidgetMetrics1){
var time = (new Date()).getTime();
for(let p=0;p<arrayOfValues.length;p++){
if(p<arrayOfValues.length-1){
series[p].addPoint([time,arrayOfValues[p]] ,false
, (series[0].data.length >= 20));// set false for all series but the last, with an animation where we want the line to start plotting after 20 seconds
}
else{
series[p].addPoint([time,arrayOfValues[p]] , true
, (series[0].data.length >= 20));// set true for only the last series, with an animation where we want the line to start plotting after 20 seconds
}
chart.redraw();
}
arrayOfValues=[];
}
dataSeries=function(){
for(var i=0;i<length;i++){
var obj={};
obj.type="line";
obj.data=getData();
obj.boostThreshold=60;
obj.name=newWidgetLegends[i];
tArray.push(obj);
}
return tArray;
}
func_plot();
function func_plot(){
$(document).ready(function() {
Highcharts.setOptions({
global: {
useUTC: false
}
});
chart=Highcharts.chart(divId, {
chart: {
height:'38%',
zoomType: 'x',
type: 'spline',
animation: Highcharts.svg, // don't animate in old IE
marginRight: 10,
events: {
load: function () {
maxSamples = 60,
counter = 0;
// set up the updating of the chart each second
var ser = this.series;
// setTimeout(function () {
setInterval(function (){
window['arr' + count]=[];
getInitialData(ser);
}, 1000);
}, 2000);
}
}
},
title: {
text: '',
style: {
display: 'none'
}
},
exporting: {
buttons: {
contextButton: {
y:screen.height*-0.02
}
}
},
plotOptions: {
line: {
marker: {
enabled: false
}
},
events: {
legendItemClick: function () {
return false;
}
}
},
xAxis: {
type: 'datetime',
ordinal:false,
labels: {
format: '{value:%M:%S}'
},
tickInterval: 10000,
title: {
text: newWidetXLabel,
marginBottom: 100
}
},
yAxis: {
title: {
text:newWidetYLabel,
min: 0,
max:10
},
plotLines: [{
value: 0,
width: 1,
color: '#808080'
}]
},
legend: {
title: {
text: '',
style: {
fontStyle: 'italic'
}
},
layout: 'horizontal',
align: 'right',
verticalAlign: 'top',
x: -30,
y: -17
},
boost: {
seriesThreshold:2,
useGPUTranslations: true
},
credits: {
enabled: false
},
tooltip: {
formatter: function () {
return Highcharts.dateFormat('%M:%S', this.x) + '<br/>' +
Highcharts.numberFormat(this.y, 2);
}
},
series: dataSeries()
});
});
}
$(window).resize(function() {
height = chart.height,
width = chart.width,
chart.setSize(width, height, doAnimation = false);
});
}
}
}]);
答案 0 :(得分：0)
发生此问题是因为两个系列都没有在同一时刻绘制。 addPoint函数的第二个参数是一个标志，指示是否应在添加之后立即重新绘制图表。在你的代码2中重绘而不是一次。第二个系列的更新打破了第一个系列的动画（它没有时间完成）。
此处的解决方案仅在第二次调用addPoint()之后重绘图表：
series.addPoint([x, y], false, true);
series2.addPoint([x, y2], true, true);
现场演示： http://jsfiddle.net/kkulig/5y1dacxv/
API参考： https://api.highcharts.com/class-reference/Highcharts.Series#addPoint