my task is to add multiple series dynamically and update series data dynamically. my data is loaded with ajax request.
i have used the logic given on highcharts side to update the data dynamically. but addpoint is not adding points to series dont know why, when i checked the series object, it has data but dirtyfiled is set to true (dont know the reason)
code given below is used to load data dynamically. here problem is add point, it is not adding data to graph. series object is showing isDirty :true isDirtyData:true.
i think this isDirty has something to deal with. please help me out. facing this problem for quite a long time .
from_date=new Date().getTime()-60000;
function requestData ()
{
console.log("into request data")
console.log(TypeOfParameter,sub_type,sub_type_parameter,hostname,from_date)
$.ajax({
url:serverUrl+'/api/fetch_params/',
type:'GET',
data:{'type':TypeOfParameter,'sub-type':sub_type,'hostname':hostname,'param':sub_type_parameter,'from-date':from_date},
success:function(response)
{
console.log("into success")
var id=sub_type+sub_type_parameter
var series = chart.get(id)
shift = series.data.length > 150; // shift if the series is longer than 300 (drop oldest point)
console.log(shift)
response= $.parseJSON(response)
var x=sub_type;
all_data=response.response.data[x]
itemdata=[]//
console.log(all_data.length)
//console.log(new Date(all_data[all_data.length-1][0]),'latest timestamp')
from_date=all_data[all_data.length-1][0]
// series.addPoint(all_data,false,shift);
console.log("series name:",series.data.length,series.name)
for (var i = 0; i < all_data.length; i++)
{
console.log(all_data[i][0],all_data[i][1]);
series.addPoint({ x: all_data[i][0],y: all_data[i][1],id: i},false,shift);
}
console.log(series,"object")
console.log("hey",series.data.length)
console.log("hey",series.data.length )
console.log(series.data)
console.log("out of success")
//chart.redraw();
setTimeout(requestData, 60000);
},
cache:false,
error:function()
{
console.log("err")
}
});
console.log("out of request ")
}
below functin is used to draw highchart,here onload event is used to load data dynamically.
$(function (
) {
console.log("into highcharts")
chart = new Highcharts.Chart({
chart: {
renderTo: 'container',
defaultSeriesType: 'spline',
events: {
load: requestData
}
},
title: {
text: 'cpu Usage'
},
xAxis: {
type: 'datetime',
tickPixelInterval: 150,
maxZoom: 20 * 1000
},
yAxis: {
minPadding: 0.2,
maxPadding: 0.2,
title: {
text: 'Value',
margin: 80
}
},
series: [{
id:sub_type+sub_type_parameter,
name: 'CPU',
data: []
}]
});;
console.log("out of highcharts")
});
chart = $('#container').highcharts();
this is the code to add axis dynamically.
var flag=true
if(TypeOfParameter=='cpu'&&flag)
{
console.log("entering into cpu",sub_type,flag)
// all_data = response.response.data[sub_type]
// itemdata=[]
// for(i in all_data)
// {
// itemdata.push(all_data[i][1])
// }
// console.log(itemdata[0])
// console.log("Drawing trend")
chart.addAxis({ // Primary yAxis
id:'Cpu_axis'+sub_type_parameter,
labels: {
formatter: function() {
return this.value;
},
style: {
color: '#89A54E'
}
},
title: {
text: "core "+ sub_type+ " "+sub_type_parameter,
style: {
color: '#89A54E'
}
},
lineWidth: 1,
lineColor: '#08F'
});
chart.addSeries({
id:sub_type+sub_type_parameter,
name: "core "+sub_type+" "+sub_type_parameter,
data:[],
tooltip: {
valueSuffix: ' q %'
},
yAxis:'Cpu_axis'+sub_type_parameter
})
//chart.redraw();
flag=false
console.log("returning from cpu")
}
my task is to add multiple series dynamically and update series data dynamically. my data is loaded with ajax request.
i have used the logic given on highcharts side to update the data dynamically. but addpoint is not adding points to series dont know why, when i checked the series object, it has data but dirtyfiled is set to true (dont know the reason)
code given below is used to load data dynamically. here problem is add point, it is not adding data to graph. series object is showing isDirty :true isDirtyData:true.
i think this isDirty has something to deal with. please help me out. facing this problem for quite a long time .
from_date=new Date().getTime()-60000;
function requestData ()
{
console.log("into request data")
console.log(TypeOfParameter,sub_type,sub_type_parameter,hostname,from_date)
$.ajax({
url:serverUrl+'/api/fetch_params/',
type:'GET',
data:{'type':TypeOfParameter,'sub-type':sub_type,'hostname':hostname,'param':sub_type_parameter,'from-date':from_date},
success:function(response)
{
console.log("into success")
var id=sub_type+sub_type_parameter
var series = chart.get(id)
shift = series.data.length > 150; // shift if the series is longer than 300 (drop oldest point)
console.log(shift)
response= $.parseJSON(response)
var x=sub_type;
all_data=response.response.data[x]
itemdata=[]//
console.log(all_data.length)
//console.log(new Date(all_data[all_data.length-1][0]),'latest timestamp')
from_date=all_data[all_data.length-1][0]
// series.addPoint(all_data,false,shift);
console.log("series name:",series.data.length,series.name)
for (var i = 0; i < all_data.length; i++)
{
console.log(all_data[i][0],all_data[i][1]);
series.addPoint({ x: all_data[i][0],y: all_data[i][1],id: i},false,shift);
}
console.log(series,"object")
console.log("hey",series.data.length)
console.log("hey",series.data.length )
console.log(series.data)
console.log("out of success")
//chart.redraw();
setTimeout(requestData, 60000);
},
cache:false,
error:function()
{
console.log("err")
}
});
console.log("out of request ")
}
below functin is used to draw highchart,here onload event is used to load data dynamically.
$(function (
) {
console.log("into highcharts")
chart = new Highcharts.Chart({
chart: {
renderTo: 'container',
defaultSeriesType: 'spline',
events: {
load: requestData
}
},
title: {
text: 'cpu Usage'
},
xAxis: {
type: 'datetime',
tickPixelInterval: 150,
maxZoom: 20 * 1000
},
yAxis: {
minPadding: 0.2,
maxPadding: 0.2,
title: {
text: 'Value',
margin: 80
}
},
series: [{
id:sub_type+sub_type_parameter,
name: 'CPU',
data: []
}]
});;
console.log("out of highcharts")
});
chart = $('#container').highcharts();
this is the code to add axis dynamically.
var flag=true
if(TypeOfParameter=='cpu'&&flag)
{
console.log("entering into cpu",sub_type,flag)
// all_data = response.response.data[sub_type]
// itemdata=[]
// for(i in all_data)
// {
// itemdata.push(all_data[i][1])
// }
// console.log(itemdata[0])
// console.log("Drawing trend")
chart.addAxis({ // Primary yAxis
id:'Cpu_axis'+sub_type_parameter,
labels: {
formatter: function() {
return this.value;
},
style: {
color: '#89A54E'
}
},
title: {
text: "core "+ sub_type+ " "+sub_type_parameter,
style: {
color: '#89A54E'
}
},
lineWidth: 1,
lineColor: '#08F'
});
chart.addSeries({
id:sub_type+sub_type_parameter,
name: "core "+sub_type+" "+sub_type_parameter,
data:[],
tooltip: {
valueSuffix: ' q %'
},
yAxis:'Cpu_axis'+sub_type_parameter
})
//chart.redraw();
flag=false
console.log("returning from cpu")
}
- did you found any solution ? I'm also having same issue, points are added sometimes, but most times blank candles appear. jsfiddle/nitincool4urchat/3v61f8v7/12 – coding_idiot Commented Nov 12, 2014 at 17:07
2 Answers
Reset to default 1I can see it is old question of 2013 year. But there are my thoughts for other guys that look for the answer on this question now.
There is highcharts.js bug https://github./highcharts/highcharts/issues/3452. In short the bug description is: when point is added with addPoint() method to chart series then this new point doesn't appear in someSerie.data array.
I propose following workaround for this issue "new points aren't present in someSerie.data array" :
// after adding new point with addPoint() method
let min = chart.xAxis[0].getExtremes().min;
let max = chart.xAxis[0].getExtremes().max;
chart.zoomOut();
chart.xAxis[0].setExtremes(min, max);
After that following check :
if(series.data.length) {
chart.redraw();
}
should work OK.
Well, it's about how you are using addPoint() function:
series.addPoint({ x: all_data[i][0],y: all_data[i][1],id: i},false,shift);
You have set redraw = false, so it won't redraw chart. Set it to true, and will work.
More about: http://api.highcharts./highcharts#Series.addPoint()
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