Slowly fly to a location

Use flyTo with flyOptions to slowly zoom to a location.


npm install --save @maptiler/sdk

main.js

import { Map, MapStyle, config } from '@maptiler/sdk';
import '@maptiler/sdk/dist/maptiler-sdk.css';

config.apiKey = 'YOUR_MAPTILER_API_KEY_HERE';
const start = [-74.5, 40];
const end = [74.5, 40];
const map = new Map({
    container: 'map',
    style: MapStyle.STREETS, 
    center: start,
    zoom: 9
});

let isAtStart = true;

document.getElementById('fly').addEventListener('click', function () {
    // depending on whether we're currently at point a or b, aim for
    // point a or b
    const target = isAtStart ? end : start;

    // and now we're at the opposite point
    isAtStart = !isAtStart;

    map.flyTo({
        // These options control the ending camera position: centered at
        // the target, at zoom level 9, and north up.
        center: target,
        zoom: 9,
        bearing: 0,

        // These options control the flight curve, making it move
        // slowly and zoom out almost completely before starting
        // to pan.
        speed: 0.2, // make the flying slow
        curve: 1, // change the speed at which it zooms out

        // This can be any easing function: it takes a number between
        // 0 and 1 and returns another number between 0 and 1.
        easing: function (t) {
            return t;
        },

        // this animation is considered essential with respect to prefers-reduced-motion
        essential: true
    });
});

index.html

<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="robots" content="noindex">
  <title>Slowly fly to a location | NPM example</title>
  <link rel="stylesheet" href="./style.css">
</head>
<body>
  <style>
  #fly {
      display: block;
      position: relative;
      margin: 0px auto;
      width: 50%;
      height: 40px;
      padding: 10px;
      border: none;
      border-radius: 3px;
      font-size: 12px;
      text-align: center;
      color: #fff;
      background: #ee8a65;
  }
  </style>
  <div id="map"></div>
  <br />
  <button id="fly">Fly</button>
  <script type="module" src="./main.js"></script>
</body>
</html>

style.css

body {margin: 0; padding: 0;}
#map {position: absolute; top: 0; bottom: 0; width: 100%;}

<html lang="en">

<head>
  <meta charset="UTF-8">
  <meta http-equiv="X-UA-Compatible" content="IE=edge">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Slowly fly to a location</title>
  <script src="https://cdn.maptiler.com/maptiler-sdk-js/v4.1.0/maptiler-sdk.umd.min.js"></script>
  <link href="https://cdn.maptiler.com/maptiler-sdk-js/v4.1.0/maptiler-sdk.css" rel="stylesheet" />
  <style>
    body {
      margin: 0;
      padding: 0;
    }

    #map {
      position: absolute;
      top: 0;
      bottom: 0;
      width: 100%;
    }

    #fly {
      display: block;
      position: relative;
      margin: 0px auto;
      width: 50%;
      height: 40px;
      padding: 10px;
      border: none;
      border-radius: 3px;
      font-size: 12px;
      text-align: center;
      color: #fff;
      background: #ee8a65;
    }
  </style>
</head>

<body>
  <div id="map"></div>
  <br />
  <button id="fly">Fly</button>
  <script>
    maptilersdk.config.apiKey = 'YOUR_MAPTILER_API_KEY_HERE';
    const start = [-74.5, 40];
    const end = [74.5, 40];
    const map = new maptilersdk.Map({
      container: 'map',
      style: maptilersdk.MapStyle.STREETS,
      center: start,
      zoom: 9
    });

    let isAtStart = true;

    document.getElementById('fly').addEventListener('click', function () {
      // depending on whether we're currently at point a or b, aim for
      // point a or b
      const target = isAtStart ? end : start;

      // and now we're at the opposite point
      isAtStart = !isAtStart;

      map.flyTo({
        // These options control the ending camera position: centered at
        // the target, at zoom level 9, and north up.
        center: target,
        zoom: 9,
        bearing: 0,

        // These options control the flight curve, making it move
        // slowly and zoom out almost completely before starting
        // to pan.
        speed: 0.2, // make the flying slow
        curve: 1, // change the speed at which it zooms out

        // This can be any easing function: it takes a number between
        // 0 and 1 and returns another number between 0 and 1.
        easing: function (t) {
          return t;
        },

        // this animation is considered essential with respect to prefers-reduced-motion
        essential: true
      });
    });
  </script>
</body>

</html>