deck.gl HexagonLayer demo

deck-gl-hexagonlayer-demo.markdown

deck.gl HexagonLayer demo

A Pen by vis.gl on CodePen.

License.

index.html

<div id="control-panel">
  <div>
    <label>Radius</label>
    <input id="radius" type="range" min="1000" max="20000" step="1000" value="1000"></input>
    <span id="radius-value"></span>
  </div>
  <div>
    <label>Coverage</label>
    <input id="coverage" type="range" min="0" max="1" step="0.1" value="1"></input>
    <span id="coverage-value"></span>
  </div>
  <div>
    <label>Upper Percentile</label>
    <input id="upperPercentile" type="range" min="90" max="100" step="1" value="100"></input>
    <span id="upperPercentile-value"></span>
  </div>
</div>

script.js

const {DeckGL, HexagonLayer} = deck;

const deckgl = new DeckGL({
  mapStyle: 'https://basemaps.cartocdn.com/gl/dark-matter-gl-style/style.json',
  initialViewState: {
    longitude: -1.4157,
    latitude: 52.2324,
    zoom: 6,
    minZoom: 5,
    maxZoom: 15,
    pitch: 40.5
  },
  controller: true
});

const data = d3.csv('https://raw.githubusercontent.com/uber-common/deck.gl-data/master/examples/3d-heatmap/heatmap-data.csv');

const OPTIONS = ['radius', 'coverage', 'upperPercentile'];

const COLOR_RANGE = [
  [1, 152, 189],
  [73, 227, 206],
  [216, 254, 181],
  [254, 237, 177],
  [254, 173, 84],
  [209, 55, 78]
];

OPTIONS.forEach(key => {
  document.getElementById(key).oninput = renderLayer;
});

renderLayer();

function renderLayer () {
  const options = {};
  OPTIONS.forEach(key => {
    const value = +document.getElementById(key).value;
    document.getElementById(key + '-value').innerHTML = value;
    options[key] = value;
  });

  const hexagonLayer = new HexagonLayer({
    id: 'heatmap',
    colorRange: COLOR_RANGE,
    data,
    elevationRange: [0, 1000],
    elevationScale: 250,
    extruded: true,
    getPosition: d => [Number(d.lng), Number(d.lat)],
    opacity: 1,
    ...options
  });

  deckgl.setProps({
    layers: [hexagonLayer]
  });
}

scripts

<script src="https://api.tiles.mapbox.com/mapbox-gl-js/v1.12.0/mapbox-gl.js"></script>
<script src="https://unpkg.com/deck.gl@latest/dist.min.js"></script>
<script src="https://d3js.org/d3.v6.min.js"></script>

style.css

body {
  width: 100vw;
  height: 100vh;
  margin: 0;
}

#control-panel {
  font-family: Helvetica, Arial, sans-serif;
  position: absolute;
  background: #fff;
  top: 0;
  left: 0;
  margin: 12px;
  padding: 20px;
  z-index: 1;
}

label {
  display: inline-block;
  width: 140px;
}

styles

<link href="https://api.tiles.mapbox.com/mapbox-gl-js/v0.44.1/mapbox-gl.css" rel="stylesheet" />