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Map Animation in JavaScript

How to make an animated map with Plotly JS


New to Plotly?

Plotly is a free and open-source graphing library for JavaScript. We recommend you read our Getting Started guide for the latest installation or upgrade instructions, then move on to our Plotly Fundamentals tutorials or dive straight in to some Basic Charts tutorials.

Plotly.d3.csv("https://raw.githubusercontent.com/plotly/datasets/master/gapminder_with_codes.csv", function(err, rows){

  function filter_and_unpack(rows, key, year) {
  return rows.filter(row => row['year'] == year).map(row => row[key])
  }

  var frames = []
  var slider_steps = []

  var n = 11;
  var num = 1952;
  for (var i = 0; i <= n; i++) {
    var z = filter_and_unpack(rows, 'lifeExp', num)
    var locations = filter_and_unpack(rows, 'iso_alpha', num)
    frames[i] = {data: [{z: z, locations: locations, text: locations}], name: num}
    slider_steps.push ({
        label: num.toString(),
        method: "animate",
        args: [[num], {
            mode: "immediate",
            transition: {duration: 300},
            frame: {duration: 300}
          }
        ]
      })
    num = num + 5
  }

var data = [{
      type: 'choropleth',
      locationmode: 'world',
      locations: frames[0].data[0].locations,
      z: frames[0].data[0].z,
      text: frames[0].data[0].locations,
      zauto: false,
      zmin: 30,
      zmax: 90

}];
var layout = {
    title: 'World Life Expectency<br>1952 - 2007',
    geo:{
       scope: 'world',
       countrycolor: 'rgb(255, 255, 255)',
       showland: true,
       landcolor: 'rgb(217, 217, 217)',
       showlakes: true,
       lakecolor: 'rgb(255, 255, 255)',
       subunitcolor: 'rgb(255, 255, 255)',
       lonaxis: {},
       lataxis: {}
    },
    updatemenus: [{
      x: 0.1,
      y: 0,
      yanchor: "top",
      xanchor: "right",
      showactive: false,
      direction: "left",
      type: "buttons",
      pad: {"t": 87, "r": 10},
      buttons: [{
        method: "animate",
        args: [null, {
          fromcurrent: true,
          transition: {
            duration: 200,
          },
          frame: {
            duration: 500
          }
        }],
        label: "Play"
      }, {
        method: "animate",
        args: [
          [null],
          {
            mode: "immediate",
            transition: {
              duration: 0
            },
            frame: {
              duration: 0
            }
          }
        ],
        label: "Pause"
      }]
    }],
    sliders: [{
      active: 0,
      steps: slider_steps,
      x: 0.1,
      len: 0.9,
      xanchor: "left",
      y: 0,
      yanchor: "top",
      pad: {t: 50, b: 10},
      currentvalue: {
        visible: true,
        prefix: "Year:",
        xanchor: "right",
        font: {
          size: 20,
          color: "#666"
        }
      },
      transition: {
        duration: 300,
        easing: "cubic-in-out"
      }
    }]
};

Plotly.newPlot('myDiv', data, layout).then(function() {
    Plotly.addFrames('myDiv', frames);
  });
})