How to change root initially to some other id

[harshavardhannarla]

Instead of starting the chart from the most top id, how to start from chosen node and can have a button to show one level to top of that.

[bumbeishvili]

Not easily possible, you have to manipulate the data by yourself and rerender the graph every time, I'd tell you before that it was snot possible, but I've seen some people do it, so maintain a separate hierarchy and only pass the partial hierarchy you want chart to draw

[harshavardhannarla]

I did this, now I can go to one level up but all the user interactions are lost as I am redrawing by passing hierarchy everytime. Is there a way to take the user interactions state or something like that outside?

[bumbeishvili]

Can you reproduce the issue?

You can fork this sample - https://stackblitz.com/edit/js-rvwpza?file=index.html