Adding and removing data in v2

As per #1609, we now can replace the entire data object and call update().

However, I’m not able to replicate this behavior, which in v1 was possible by using addData and removeData.

Is there a way to have this behavior in v2? https://www.dropbox.com/s/eovva6wfagq5vg8/moving-chart.mov?dl=0

[cmorriss]

Hi, I’m pretty new to chart.js and we’re looking to use it in our product. This feature was very nice in 1.0 and I think it’s a pretty big regression to not support it in 2.0.

I’ve tried putting in the moveChart() function, but it really isn’t the same. It redraws the entire chart which makes it look like it’s all new data instead of just new data coming in at the end.

I hope this can be looked into further for the 2.0 stream as it really is a great feature.

[simonbrunel]

I’m experimenting some changes in the dataset controller to get notified when data array(s) change and so cleanup meta data and get better animations when values are inserted or removed, and this without adding extra chart APIs. This allows many kind of animations, not only from right to left or left to right. I don’t know if it’s what you guys are looking for but I hope it should make real time charts experience better (see these examples: http://playground.abysscorp.org/chartjs/livecharts/).