Pie chart performance

[jamesrus52]

Hello
I have pie chart with 3000 points
rendering time is 50 sec

How can I reduce rendering time ?

[Shashi Ranjan]

@jamesrus52,

We have tried the condition given above and its rendering within a few seconds at our end. Can you please create a JSFiddle reproducing the issue you’re facing so that we can look into the code, understand it better and help you out.

____
Shashi Ranjan
Team CanvasJS

[jamesrus52]

MyChart

[Shashi Ranjan]

@jamesrus52,

We looked into the JSFiddle provided by you, it’s taking time not due to dataPoints but due to rearrangement of labels in a pie chart(labels are rearranged so that they don’t overlap with each other). Once you remove labels its rendering within a few seconds.

____
Shashi Ranjan
Team CanvasJS

[jamesrus52]

Thank you, without labels chart is rendering faster,
but chart is not so pretty without it now.
May be it possible to show labels only for Top N datapoints ?

[Shashi Ranjan]

@jamesrus52,

Can you please brief me more about what do you mean by “show labels only for Top N datapoints”?
____
Shashi Ranjan
Team CanvasJS

[jamesrus52]

If I understood right, the problem is that too many labels, if we set for example show only 10 labels for first 10 datapoints or for 10 biggest datapoints in array, may be it solve the problem ?

[Shashi Ranjan]

@jamesrus52,

You can achieve the above requirement by removing the label from dataPoints which fall below a threshold value before rendering the chart as shown in this JSFiddle.

____
Shashi Ranjan
Team CanvasJS