I want to make a chart with 4 series' and show only 1 or 2 of them at the same time. The user can choose, which series he wants to see. This works fine with series.show and series.hide, but the baseSeries, set in "navigator", doesn't change.
Is there a way to change it dynamically?
Navigator series is based on first series data, as a result is not updated. In case when you would like to update navigator series, you need to use setData() on series[1] object.
http://jsfiddle.net/sbochan/HwuRr/
chart.series[1].setData([5,2,1,2,4,6,10]);
Related
What I wanna do: I have a basic line chart which is initialy load with an array of data (series: [...]) which creates me lets say x lines. I will also render x checkboxes above the chart. On click on one of the checkboxes the corresponding line should disappear or appear. Therefor I am listening to the click event and then I want to add or remove a line.
The problem: I can not figure out how to replace the whole series with a new one. What I have found is the setData() method, but that only works on an item of the data array. I also found the methods addSeries() which will add an item. And remove() which will remove a specific item. The problem is, I dont know which item is which. What I would like is to hide a line or show them, but have the full x lines in the data series all the time. I think.
I also found the method update() which will let me pass a new configuration object to the chart, but its not working if i pass the option 'series: newData (array)'.
I am either looking for an option to pass the full data array at the beginning and then hide or show a line, or, to overwrite the full series data at any given them with a new array.
Hopefully thats understandable and someone can point out what I am missing! Thanks!
I have found a solution. I would load the whole data array in the beginning and show or hide certain series for the initial display with the option visible:false.
On click of the checkboxes I need to find the right series and then there are the methods show() and hide() to manipulate that visible property on runtime.
chart.series[myIndex].show();
chart.series[myIndex].hide();
You can use setVisible method for series and bind checkboxes with the series:
var checkboxes = document.getElementById('checkboxes').children;
for (var i = 0; i < checkboxes.length; i++) {
(function(i) {
checkboxes[i].addEventListener('change', function() {
chart.series[i].setVisible(this.checked);
});
})(i);
}
Live demo: http://jsfiddle.net/BlackLabel/ur31g4j5/
API Reference: https://api.highcharts.com/class-reference/Highcharts.Series#setVisible
I have a highstock graph with flags that initially is correctly set.
See on Figure 1:
The graph's data is loaded dynamically when the vertical scroll bar is changed. The only thing that changes is the series data with the function
function afterSetExtremes(e) {
var new_data_to_be_loaded = getNewDataToBeLoaded();
chart.series[0].setData(new_data_to_be_loaded);
}
The new series data is loaded correctly but the flags is incorreclty re-arranged, se the Figure 2:
So what's wrong on the setting, since the chart.series[0].setData just set the series not the previous flags added?
Almost a solution:
I found that setdata(data, false), setting the animation/redraw to false solve the problem of wrong flag positioning.
Take a look at that: http://jsfiddle.net/b6b63nwy/10/
But this did raise another problem: the series tooltip does not appear anymore. Is this a highstocks bug?
The answer:
http://forum.highcharts.com/highstock-usage/bug-series-tooltip-doesn-t-render-when-use-series-setdata-t37593/
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If you take a look at the Series.setData section in the official API, you will find that the second argument is a Boolean property which tells if redraw the chart. Instead of setData, try to use Series.update() function.
API Reference:
http://api.highcharts.com/highcharts/Series.setData
http://api.highcharts.com/highstock/Series.update
Basically I want to do simple thing - save to user cookie chart xAxis.min and xAsis.max when user uses the Navigator, so that next time I could show him chart on the same selected period.
Is there some kind of onChange event or I have to read chart's parameters in setInterval?
You can use the xAxis.events.afterSetExtremes (API) or xAxis.events.setExtremes event. From your requirements I would assume that afterSetExtremes is sufficient.
If you want to only capture changes through the navigator you need to check
if(event.trigger == 'navigator'), otherwise you can just look at general changes.
Here is a JFiddle Highstock demo that shows the use of setExtremes event and what event.trigger values you can get.
I have a highchart displaying multiple series, each contains 100+ data points
I have a UI containing a checkbox for each series that when clicked calls the series.hide() or series.show() to toggle the hide/show of each line
My problem is that the hide and show are extremely slow such that I cant check one checkbox whilst processing from a previous is taking place
Does anyone know how to handle this?
Thanks
Rather than calling hide() for each series, call setVisible(false, false);. This second parameter is the redraw parameter, and you can avoid causing a redraw (which is slow) for each series.
Then, after you're done changing visibilities, call chart.redraw() once.
http://api.highcharts.com/highcharts#Series.setVisible
as answered in:
Hiding _groups_ of series in Highcharts and jQuery: how to get acceptable performance?
highcharts draw each time a show or hide is called;
disabling and enabling the redraw function worked for me;
var _redraw = this.chart.redraw;
this.chart.redraw = function(){};
//do work
this.chart.redraw = _redraw;
this.chart.redraw();
How about adding visible: false for the series that are hidden before calling Highcharts.chart()?
Please see references: 1. Highcharts API and 2. Demo
In my case, above approach showed the best performance comparing to the followings:
series.hide()
setVisible(false, false)
setVisible(false, true) or setVisible(false, false); redraw();
I want at the bottom of the graph, to be shown a preview, just like in this example :
I had a similar issue. It happens when you set the data after you initialised the graph. You will have to manually update the navigator.
When initialising the chart, make sure to give the navigator an id.
navigator = {
series: {
id: 'navigator'
}
}
After updating the data, get the navigator by it’s id and set the data to the navigator as well. This will update the "preview" chart.
chart.get("navigator").setData([data that you updated the chart with]);
Sadly Highcharts does not support updating data in this way. It works best if you initialise it with the data. It’s best to destroy the chart and recreate it once the data is ready. Not always the best option I know.
Hope this helps