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HTML 

              
                <!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <title>Plotly.js Animation</title>
  <!-- Include the Plotly.js library -->
  <script src="https://cdn.plot.ly/plotly-latest.min.js"></script>
</head>
<body>
  <!-- Create a container div for the plot -->
  <div id="plotContainer"></div></body>
</html>
!

CSS
!

JS 

              
                    // Line plot data
    const numPoints = 100;
    const diff = 2 * Math.PI / (numPoints - 1);
    const theta = Plotly.d3.range(0, 2 * Math.PI + diff, diff);
    const y1 = theta.map(t => Math.cos(t));
    const y2 = theta.map(t => Math.sin(t));
    
    const trigData = [
        { x: theta, y: y1, name: 'Cosine / x-coordinate', mode: 'lines', line: { color: 'blue' } },
        { x: theta, y: y2, name: 'Sine / y-coordinate', mode: 'lines', line: { color: 'red' } },
    ];

    const r = theta.map(t => 1);

    // Circle data
    const circData = [
        {
            x: y1,
            y: y2,
            mode: 'lines',
            name: 'Unit Circle',
            xaxis: 'x2',
            yaxis: 'y2',
            line: {color: 'green' },
        },

        {
            x: [0, 1],
            y: [0, 0],
            mode: 'lines',
            name: 'Radius',
            xaxis: 'x2',
            yaxis: 'y2',
            line: {color: 'black' },
        },
    ];

    // Create the layout with subplots
    const layout = {
        grid: { rows: 1, columns: 2, pattern: 'independent' },
        yaxis2: {scaleanchor: "x2"}

    };
    const data = [...trigData, ...circData];
    Plotly.newPlot('plotContainer', data, layout);


    // Add markers for animation
    const markerShared = {marker:{color: 'black', size: 10},  showlegend: false, mode: 'markers'};
    const markerData = [
        { x: [0], y: [Math.cos(0)],  ...markerShared},
        { x: [0], y: [Math.sin(0)],  ...markerShared},
        { x: [1], y: [0], xaxis: 'x2', yaxis: 'y2',  ...markerShared}
    ];

    Plotly.addTraces('plotContainer', markerData);

    // Create animation frames
    const frames = theta.map(
        (i, idx) => {
            let cosX = Math.cos(i);
            let sinX = Math.sin(i);
            return {
                name: idx,
                data: [
                    { x: [0, cosX], y: [0, sinX] },
                    { x: [i], y: [cosX] },
                    { x: [i], y: [sinX] },
                    { x: [cosX], y: [sinX] },
                ],
                traces: [3, 4, 5, 6],
            }
        }
    )

    Plotly.addFrames('plotContainer', frames);

    // Add buttons for control
    const updatemenus = [
        {
          buttons: [{
          method: 'animate',
          args: [null, {
            mode: 'immediate',
            fromcurrent: true,
            transition: {duration: 0},
            frame: {duration: 100, redraw: false}
          }],
          label: 'Play'
        }, {
          method: 'animate',
          args: [[null], {
            mode: 'immediate',
            transition: {duration: 0},
            frame: {duration: 0, redraw: false}
          }],
          label: 'Pause'
        },{
          method: 'animate',
          args: [[frames[0].name], {
            mode: 'immediate',
            transition: {duration: 0},
            frame: {duration: 0, redraw: false}
          }],
          label: 'Reset'
        }],
          type: 'buttons',
          pad: {t: -50, r: 100},
          x: 0.1,
          y: 1.1,
        },
      ]

    Plotly.update('plotContainer', {}, { updatemenus: updatemenus });

    // Add a slider for control
    const sliderSteps = frames.map((frame, idx) => {
        return {
            method: 'animate',
            label: (theta[idx] * 180 / Math.PI).toFixed() + '°',
            args: [[frame.name], { frame: { duration: 50, redraw: false }, transition: { duration: 0 } }],
        }
    })

    const slider = [
    {
        pad: { t: 30 },
        steps: sliderSteps,
    },
    ];

    Plotly.update('plotContainer', {}, { sliders: slider });
!
999px

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