Stream Data / Iteratively Render

• July 13, 2017 at 10:03 pm #15569
  
  Anthony

  When working with huge amounts of data points it would be nice if we could have the chart iteratively render the data. It would look similar to the line animation, but it would be fed by a stream of iterative updates. It would presumably require first setting the min and max axis values. It would be a better alternative to showing a “please wait” busy spinner as the chart was rendered and it might also avoid the browser from becoming unresponsive.

  I’m using downsampling now, but that takes time so maximizing the amount of data that canvasjs can handle is useful and also having the user see the progress unfold before them is way better than a locked up screen. It would also be nice if re-rendering (perhaps triggered during window resize) of huge amounts of data was internally done incrementally to avoid an unresponsive browser. Again, better to watch a line being drawn like an animation than a busy wait spinner.

  July 19, 2017 at 3:03 am #15588
  
  Anthony

  To clarify, streaming data over a websocket and incrementally rendering the chart would allow overlapping network wait and render wait.

  July 25, 2017 at 10:41 am #15633
  
  Bivek Singh

  Anthony,

  Thank you for the suggestion. We’ll consider this in future versions.

  —-
  Bivek Singh,
  Team CanvasJS