In my highchart plots I need to change some attributes of a yAxis. I can do it using update or redraw. But when I use update, it gives me error: "object# has no method 'update'".
Here is the screenshot:[http://tinypic.com/view.php?pic=2hmfoug&s=5]
And when I use chart redraw, it does not adjust ticks properly when there are multiple yAxis.
I have tried to create an example of the problem I am facing, Here is the example: [
http://jsfiddle.net/3MB5n/]
In the above link, In button1, I am using a chart.redraw method and chart axis update method in button2.
With the button 1, gap between yAxis[0] ticks is changing, but it does not adjust the remaining yAxis, like it does in button 2.
So, I have two questions:
Is there a way to solve the above mentioned error if I use chart.redraw
Why I am getting error, when I use chart.yAis update in my code, and the error does not show on jsfiddle? How can I solve it in my code.
Related
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
I'm trying to display a dynamic stockchart with push-data, but unfortunately for some reason the chart only displays the open-values of the data-array, which is problematic for push-values since only the close-values are pushed. Is there a way to avoid that?
You have your chart series set as type 'line'.
A line is only going to show you one value.
Change the type to 'ohlc'
http://jsfiddle.net/jlbriggs/LaKBQ/2/
type: 'ohlc',
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();
How do I create a simple chart with a single horizontal bar. Xaxis is time and yaxis is one category named execution. I want to show a chart that shows a bar during the times when I have state executing and for states in between I want to display a blank in the same horizontal bar.
What you are looking for, I think, is a Gantt chart. Check out this example: http://jsfiddle.net/highcharts/KNGba/. It is a basic chart with just one element. Now check out this one: http://jsfiddle.net/highcharts/r6emu/. This shows you events during a time line.
I originally asked this question on the Highcharts forum a few days ago but received no answer so let me ask it here:
I want to have a chart where I can toggle the 'reversed' property of the Y-axis after the chart has been initialized and then see the chart redrawn. My first thought was to put something like the following code inside of an event handler (say in response to a button click), but it doesn't seem to do anything.
chart.yAxis[0].reversed = !chart.yAxis[0].reversed;
chart.redraw();
I don't think it's possible (see this forum post).
In particular, the last response on that post concludes with this:
I would suggest a workflow for your gui that updates a structure that keeps the options and then creates a new chart based on the options. The api we have has more of a focus on changing the data that is displayed than changing how the data is displayed.
So you might have to create two charts (one for each axis direction), only display one of them at a time, and toggle between them at runtime.
Update:
The accepted answer on this duplicate question suggests it is possible by doing this:
chart.yAxis[0].update({
reversed: !reversed
});