hacking-stanford-libraries/html/cog_map_step_05.html at main · StanfordGeospatialCenter/hacking-stanford-libraries · GitHub

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<!DOCTYPE html>
<html lang="en">
<head>
    <base target="_top">
    <meta charset="utf-8">
    <meta name="viewport" content="width=device-width, initial-scale=1">
    <title>Stanford Campus Map - Step 4: Add Popups</title>

    <link rel="stylesheet" href="https://unpkg.com/leaflet@1.9.4/dist/leaflet.css" integrity="sha256-p4NxAoJBhIIN+hmNHrzRCf9tD/miZyoHS5obTRR9BMY=" crossorigin=""/>
    <script src="https://unpkg.com/leaflet@1.9.4/dist/leaflet.js" integrity="sha256-20nQCchB9co0qIjJZRGuk2/Z9VM+kNiyxNV1lvTlZBo=" crossorigin=""></script>
    <script src="https://unpkg.com/proj4"></script>
    <script src="https://unpkg.com/georaster"></script>
    <script src="https://unpkg.com/georaster-layer-for-leaflet"></script>
    <style>
        html, body {
            height: 100%;
            margin: 0;
        }
        .leaflet-container {
            height: 600px;
            width: 800px;
            max-width: 100%;
            max-height: 100%;
        }
    </style>
</head>
<body>

<h1>Stanford Public Art Map</h1>
<p>Step 5: Add a Cloud Optimized GEOTIFF (COG)</p>

<div id="map" style="width: 800px; height: 600px;"></div>
<script>

    // Initialize map centered on Stanford campus
    const map = L.map('map').setView([37.427, -122.169], 15);

    // Add OpenStreetMap tile layer
    const tiles = L.tileLayer('https://tile.openstreetmap.org/{z}/{x}/{y}.png', {
        maxZoom: 19,
        attribution: '&copy; <a href="http://www.openstreetmap.org/copyright">OpenStreetMap</a>'
    }).addTo(map);


// add COG layer using georaster-layer-for-leaflet

    var url_to_geotiff_file = new URL("../stanford_campus_irg.tif", window.location.href).href;

parseGeoraster(url_to_geotiff_file).then(georaster => {
  console.log("georaster:", georaster);

  fetch("../stanford_campus.geojson")
    .then(r => r.json())
    .then(maskGeojson => {
      var layer = new GeoRasterLayer({
        attribution: "Planet",
        georaster: georaster,
        resolution: 128,
        mask: maskGeojson
      });

      layer.addTo(map);
      map.fitBounds(layer.getBounds());
    });
}).catch(console.error);

    // Load GeoJSON data
    fetch('../stanford_public_art.geojson')
        .then(response => response.json())
        .then(data => {
            // Add GeoJSON layer with custom circle markers and popups
            const artworkLayer = L.geoJSON(data, {
                pointToLayer: function(feature, latlng) {
                    return L.circleMarker(latlng, {
                        radius: 6,
                        color: 'white',
                        weight: 2,
                        fillColor: 'blue',
                        fillOpacity: 0.7
                    });
                },
                onEachFeature: function(feature, layer) {
                    const props = feature.properties || {};
                    const title = props.name || 'Artwork';
                    const artist = props.artist_name;
                    const type = props.artwork_type;

                    // Build popup content
                    let popupContent = '<div style="min-width:200px;">';
                    popupContent += '<b>' + title + '</b><br>';
                    if (artist) popupContent += '<b>Artist:</b> ' + artist + '<br>';
                    if (type) popupContent += '<b>Type:</b> ' + type;
                    popupContent += '</div>';

                    layer.bindPopup(popupContent);
                }
            }).addTo(map);

            // Zoom to fit all markers
            map.fitBounds(artworkLayer.getBounds());
        })
        .catch(error => console.error('Error loading GeoJSON:', error));

</script>

</body>
</html>