How get graph name or variable name or any thing else which can give identification of that graph on clickdata of graph

Dash Python
1

Hi there. I have a scenario in which I have small buttons under the graph card which are changing graph or updating graph. they are working fine. So now i have to update the graph on the click of the graph.

I have to know graph identification or want to know what variable name its plotting or any other identification of that graph like any name.
for now i am only getting this data

{
  "points": [
    {
      "curveNumber": 1,
      "pointNumber": 1,
      "pointIndex": 1,
      "x": 2,
      "y": 4,
      "bbox": {
        "x0": 735.4,
        "x1": 755.4,
        "y0": 828.2,
        "y1": 848.2
      },
      "customdata": [
        4
      ]
    }
  ]
}

fig = px.line(df, x=xs, y=ys, render_mode='svg', labels={'value': "Bpm"}, custom_data=['beat])
2

Hi,
The curveNumber in click data gives the trace index of the point clicked, and you can find the trace doing fig.data[idx], where idx = click_data[”points"][0]["curveNumber]. In the trace you can find the info that you are looking for, for instance its name via fig.data[idx].name and so on.
Hope this helps!

1 Like
3

But the problem is how do we get fig in callback wherever we are only received clickdata.

4

Just pass the “figure” prop from dcc.Graph as State in the callback. fig will be a dictionary on this case, so you can’t access data by attribute any longer.

5

@jlfsjunior Thanks, I literally forgot about state.