add trace option to make some data not selectable in order to speed up slow box select

Hi,

When there are a lot of data traces displayed in the plot (>10,000), box select is slow and laggy when you click and drag to select data traces. I notice it is even slower in version plotly.js@2.27.1 than it is in plotly.js@2.5.1. A hypothetical solution for me would be if you added a feature to exclude some traces from being selectable, as in the example below.

Example of proposed feature:

import React from 'react';
import Plot from 'react-plotly.js';

class MyPlot extends React.Component {
  render() {
    return (
      <Plot
        data={[
          {
            x: [1, 2, 3, 4],
            y: [10, 15, 13, 17],
            type: 'scattergl',
            mode: 'lines+markers',
            name: 'Selectable Trace'
          },
          {
            x: [1, 2, 3, 4],
            y: [16, 5, 11, 9],
            type: 'scattergl',
            mode: 'lines+markers',
            name: 'Non-selectable Trace',
            selectable: false   //  <------ THIS IS THE NEW FEATURE THAT IS BEING REQUESTED
          }
        ]}
        layout={{ 
          title: 'Selectable vs Non-selectable Traces'
        }}
      />
    );
  }
}

I have a temporary fix to speed up selection. When I tested this naive change, box select's click and drag is no longer laggy:

// Change in file: plotly.js/src/traces/scattergl/select.js
 module.exports = function select(searchInfo, selectionTester) {
  return [];  // Changed to always return no selected traces, because my own onSelected handler can do all the work using only the selected x, y range coordinates.
 }

If you can tell me how to monkey patch this in, that would be very helpful!

Thanks!

Commencez par src/traces/scattergl/select.js et examinez la façon dont la sélection par cadre traite actuellement les traces, en utilisant l’exemple scattergl signalé comme référence du comportement. Déterminez comment une option selectable au niveau d’une trace devrait affecter la sélection tout en préservant la sélection des autres traces. C’est terminé lorsque les traces non sélectionnables sont exclues et que la sélection par cadre reste réactive avec de grands ensembles de données.