Select data points for a specific trace from a multi trace plot

plotly.js
1

So I have a multitrace plot say, it has 3 traces. Now I want to select data points for a region only for 1st trace. Now the problem is when I select the region it also select datapoints from 2nd and 3rd trace, if there are data points for those traces in the selected region. But I want to select points only for 1st trace , how do I do that?

1 Like
2

We don’t allow that at the moment. It would be a cool feature though.

3

Sorry to hear that, it really could have helped me in my project. In the mean time I have to implement my own function to filter out the points for other traces.

4

Its not offered natively by plotly yet, but one way of achieving this would be explicitly setting the ‘selectedpoints’ to empty array and then restyling the trace.

gd.on('plotly_selected', () => {
    // replace tn with trace number of plot from which you do not want to select points
    gd.data[tn].selectedpoints = []

    // send appropriate arguments for the restyle function below
    Plotly.restyle(arguments);
})
5

After I posted the question plotly had added an object curveNumber to the plotly_selected event data, from there we can easily get the trace information.