JavaScript Maps SDK

Filter symbols by text input

Filter symbols by icon name by typing in a text input. 


<!doctype html>
<html lang="en">
    <head>
        <meta charset="utf-8" />
        <link rel="stylesheet" href="https://maps-sdk.trimblemaps.com/v4/trimblemaps-4.2.3.css" />
        <script src="https://maps-sdk.trimblemaps.com/v4/trimblemaps-4.2.3.js"></script>
        <style>
            body { margin: 0; padding: 0; }

            html,body,#map {
                height: 100%;
            }

            .filter-ctrl {
        position: absolute;
        top: 10px;
        right: 10px;
        z-index: 1;
      }

      .filter-ctrl input[type='search'] {
        font: 12px/20px 'Helvetica Neue', Arial, Helvetica, sans-serif;
        width: 100%;
        border: 0;
        background-color: #fff;
        margin: 0;
        color: rgba(0, 0, 0, 0.5);
        padding: 10px;
        box-shadow: 0 0 0 2px rgba(0, 0, 0, 0.1);
        border-radius: 3px;
        width: 180px;
      }
        </style>
    </head>
    <body>
        <div id="map"></div>

          <div class="filter-ctrl">
      <input
        id="filter-input"
        type="search"
        name="filter"
        placeholder="Filter by name"
      />
    </div>
        <script>
        const places = {
        type: 'FeatureCollection',
        features: [
          {
            type: 'Feature',
              properties: {
              icon: 'theatre',
            },
            geometry: {
              type: 'Point',
              coordinates: [-77.038659, 38.931567],
            },
          },
          {
            type: 'Feature',
            properties: {
              icon: 'theatre',
            },
            geometry: {
              type: 'Point',
              coordinates: [-77.003168, 38.894651],
            },
          },
          {
            type: 'Feature',
            properties: {
              icon: 'bar',
            },
            geometry: {
              type: 'Point',
              coordinates: [-77.090372, 38.881189],
            },
          },
          {
            type: 'Feature',
            properties: {
              icon: 'bicycle',
            },
            geometry: {
              type: 'Point',
              coordinates: [-77.052477, 38.943951],
            },
          },
          {
            type: 'Feature',
            properties: {
              icon: 'music',
            },
            geometry: {
              type: 'Point',
              coordinates: [-77.031706, 38.914581],
            },
          },
          {
            type: 'Feature',
            properties: {
              icon: 'music',
            },
            geometry: {
              type: 'Point',
              coordinates: [-77.020945, 38.878241],
            },
          },
          {
            type: 'Feature',
            properties: {
              icon: 'music',
            },
            geometry: {
              type: 'Point',
              coordinates: [-77.007481, 38.876516],
            },
          },
        ],
      };
      const layerIDs = []; // Will contain a list used to filter against.
      const filterInput = document.getElementById('filter-input');
        TrimbleMaps.setAPIKey('YOUR_API_KEY_HERE');

      const map = new TrimbleMaps.Map({
        container: 'map',
        style: TrimbleMaps.Common.Style.TRANSPORTATION,
        center: [-77.04, 38.907],
        zoom: 11.15,
      });

      map.on('load', () => {
        // Add a GeoJSON source containing place coordinates and information.
        map.addSource('places', {
          type: 'geojson',
          data: places,
        });

        places.features.forEach((feature) => {
          const symbol = feature.properties['icon'];
          const layerID = `poi-${symbol}`;

          // Add a layer for this symbol type if it hasn't been added already.
          if (!map.getLayer(layerID)) {
            map.addLayer({
              id: layerID,
              type: 'symbol',
              source: 'places',
              layout: {
                'icon-image': `${symbol}_15`,
                'icon-overlap': 'always',
                'text-field': symbol,
                'text-font': ['Open Sans Regular', 'Noto Sans Regular'],
                'text-size': 11,
                'text-transform': 'uppercase',
                'text-letter-spacing': 0.05,
                'text-offset': [0, 1.5],
              },
              paint: {
                'text-color': '#202',
                'text-halo-color': '#fff',
                'text-halo-width': 2,
              },
              filter: ['==', 'icon', symbol],
            });

            layerIDs.push(layerID);
          }
        });

        filterInput.addEventListener('keyup', (e) => {
          // If the input value matches a layerID set
          // it's visibility to 'visible' or else hide it.
          const value = e.target.value.trim().toLowerCase();
          layerIDs.forEach((layerID) => {
            map.setLayoutProperty(
              layerID,
              'visibility',
              layerID.indexOf(value) > -1 ? 'visible' : 'none'
            );
          });
        });
      });
    </script>
  </body>
</html>
Last updated June 26, 2025.