Animate adding single point

[kditraglia]

Is there currently any way to take a already existing dataset, and animate adding another point. Currently using the animation logic will redraw the entire line, is there a way to only animate drawing the new part of the line added from a single point?

[liuxuan30]

#189. it seems use Animated moveViewToX() #318

[kditraglia]

"You can also use the animation util in Charts, that can animate a number for you already, including easing and stuff."

I don't see any option to animate a single data-set only the whole chart. Am I missing something?

[liuxuan30]

I double checked, looks like it's not implemented..

This is actually a feature that I thought about already, and planning to implement.
We have a lot on our plate right now - so in the meantime if this is really important to you - you could do this:

Create a function that takes dataset A, dataset B, and a phase value between 0 and 1.
This function will:

    Define a new dataset C
    Iterate on each value in A, and set C[i] = (B[i] - A[i]) * phase + A[i]
    Return C as the new dataset

Now you should animate a simple number from 0 to 1, and pass it to the function along with the "from" dataset and "to" dataset. The result should be passed to the chart view :-)

You can also use the animation util in Charts, that can animate a number for you already, including easing and stuff.

So it's pretty much a peach of cake, and as soon as I can I'm planning on adding this to the library. But at least you have a solution for the meanwhile ;-)

[amir-skn]

Is Animate adding single point finally added to the features?