mesh-map-docker/geohashCalc.html at main · deftdev/mesh-map-docker · GitHub

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<!DOCTYPE html>
<html lang="en">

<head>
  <title>Geohash Calculator</title>
  <link rel="stylesheet" type="text/css" href="content/forms.css" />
</head>

<body>
  <div>
    <div class="form-item">
      <label>
        Geohash:
        <input id="hashTxt">
      </label>
    </div>
    <div class="form-item">
      <label>
        Lat/Lon:
        <input id="latLonTxt">
      </label>
    </div>
  </div>

  <script type="module">
    import { geohash8, parseLocation, posFromHash } from '/content/shared.js'

    const hashTxtEl = document.getElementById("hashTxt");
    const latLonEl = document.getElementById("latLonTxt");

    hashTxtEl.addEventListener("change", e => {
      const [lat, lon] = posFromHash(e.target.value);
      latLonEl.value = `${lat.toFixed(4)}, ${lon.toFixed(4)}`;
    });

    latLonEl.addEventListener("change", e => {
      const [latTxt, lonTxt] = e.target.value.split(/,\s*/, 2);
      const [lat, lon] = parseLocation(latTxt, lonTxt, false);
      const hash = geohash8(lat, lon);
      hashTxtEl.value = hash;
    });
  </script>
</body>

</html>