How can users create on-click buttons to activate zoom in and zoom out features in a Plotly chart?

I am currently working on an Angular application where I need to implement zoom in and zoom out functionality for a Plotly chart. While the default hoverable mode bar provides this feature, it is not suitable for our specific use case. We require user-created on-click buttons to control the zooming of the chart. Is there a way to simulate the actions of the hoverable mode bar's zoom in and zoom out functions through custom on-click buttons? If not, what alternative solutions can be explored? Any suggestions would be greatly appreciated.

Sample code snippet from .ts file:

basicChart() {

    var trace1 = {
        x: ['2020-10-04', '2021-11-04', '2023-12-04'],
        y: [90, 40, 60],
        type: 'scatter'
    };

    var data = [trace1];

    var layout = {
        title: 'Chart',
        showlegend: false
    };

    Plotly.newPlot('myDiv', data, layout);
}

Answer №1

I encountered a similar issue and decided to utilize the DOM to interact with the modebar.

zoom-functions-example.js

const plot = Plotly.newPlot('myDiv', data, layout)
let zoomIn = function(plot){
  plot.querySelector('a[data-attr="zoom"][data-val="in"]').click()
},
let zoomOut = function(plot){
  plot.querySelector('a[data-attr="zoom"][data-val="out"]').click()
},
let resetView = function(plot){
  plot.querySelector('a[data-attr="zoom"][data-val="reset"]').click()
},

CSS to hide modebar:

.modebar-container{
  display: none;
}

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