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places.html
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places.html
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<html>
<head>
<title>Overture Places</title>
<meta charset="utf-8"/>
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<link rel="stylesheet" href="https://unpkg.com/[email protected]/dist/maplibre-gl.css" crossorigin="anonymous">
<script src="https://unpkg.com/[email protected]/dist/maplibre-gl.js" crossorigin="anonymous"></script>
<script src="https://unpkg.com/[email protected]/dist/index.js"></script>
<script src="https://unpkg.com/[email protected]/dist/index.js"></script>
<style>
body {
margin: 0;
}
#map {
height:100%; width:100%;
}
#scroller {
z-index:999999;
position:absolute;
top:0px;
right:0px;
color:white;
padding:.5rem;
background-color:#444;
}
</style>
</head>
<body>
<div id="map"></div>
<div id="scroller">
<select id="releases">
<option value="2024-05-16-beta.0">2024-05-16-beta.0</option>
</select>
Filter by confidence >= <span id="confidence">0.0</span>
<input type="range" min="0" max="100" step="1" value="0" onInput="rangeChanged(this.value)"></input>
</div>
<script type="text/javascript">
let protocol = new pmtiles.Protocol();
maplibregl.setRTLTextPlugin('https://unpkg.com/@mapbox/[email protected]/mapbox-gl-rtl-text.js');
maplibregl.addProtocol("pmtiles",protocol.tile);
function throttle (callback, limit) {
var waiting = false; // Initially, we're not waiting
return function () { // We return a throttled function
if (!waiting) { // If we're not waiting
callback.apply(this, arguments); // Execute users function
waiting = true; // Prevent future invocations
setTimeout(function () { // After a period of time
waiting = false; // And allow future invocations
}, limit);
}
}
}
const map = new maplibregl.Map({
hash: true,
container: 'map',
style: {
version:8,
glyphs:'https://cdn.protomaps.com/fonts/pbf/{fontstack}/{range}.pbf',
sources: {
"overture-places": {
type: "vector",
url: "pmtiles://https://data.source.coop/protomaps/overture/2024-05-16-beta.0/places.pmtiles",
attribution: '© <a href="https://overturemaps.org">Overture Maps Foundation</a>'
},
"protomaps": {
type: "vector",
url: "https://api.protomaps.com/tiles/v3.json?key=1003762824b9687f",
attribution: 'Basemap © <a href="https://openstreetmap.org">OpenStreetMap</a>',
maxzoom: 14
}
},
layers: [...protomaps_themes_base.noLabels("protomaps","black"),
{
'id':'places',
'type':'circle',
'source':'overture-places',
'source-layer':'place',
'filter':[">=",["get","confidence"], 0.0],
'paint': {
'circle-color':
['case',
['==',['get','@category'],'beauty_salon'],'#fb9a99',
['==',['get','@category'],'hotel'],'#33a02c',
['==',['get','@category'],'landmark_and_historical_building'],'#a6cee3',
['==',['get','@category'],'professional_services'],'#fdbf6f',
['==',['get','@category'],'shopping'],'#e31a1c',
['==',['get','@category'],'restaurant'],'#1f78b4',
['==',['get','@category'],'school'],'#ff7f00',
['==',['get','@category'],'accommodation'],'#b2df8a',
'#cab2d6'
],
'circle-radius': [
'interpolate',
['exponential',2],
['zoom'],
0, 1,
19, 8
],
'circle-stroke-width': [
'interpolate',
['exponential',2],
['zoom'],
12, 0,
14, 2
],
'circle-stroke-color':'black'
}
},
{
'id':'places-text',
'type':'symbol',
'source':'overture-places',
'source-layer':'place',
'filter':[">",["get","confidence"], 0.0],
'minzoom':14,
'layout': {
'text-field':"{@name}",
'text-font':["Barlow Regular"],
'text-size': [
'interpolate',
['exponential',2],
['zoom'],
13, 11,
16, 14
],
'text-offset':[0,1.2]
},
'paint': {
'text-color':
['case',
['==',['get','@category'],'beauty_salon'],'#fb9a99',
['==',['get','@category'],'hotel'],'#33a02c',
['==',['get','@category'],'landmark_and_historical_building'],'#a6cee3',
['==',['get','@category'],'professional_services'],'#fdbf6f',
['==',['get','@category'],'shopping'],'#e31a1c',
['==',['get','@category'],'restaurant'],'#1f78b4',
['==',['get','@category'],'school'],'#ff7f00',
['==',['get','@category'],'accommodation'],'#b2df8a',
'#cab2d6'
],
'text-halo-width':2,
'text-halo-color':'black'
}
}, ...protomaps_themes_base.labels("protomaps","black")
]
}
});
function rangeChangedUnthrottled(target) {
map.setFilter("places", [">=",["get","confidence"], target / 100.0]);
map.setFilter("places-text", [">=",["get","confidence"], target / 100.0]);
document.getElementById("confidence").innerText = target / 100.0;
}
let rangeChanged = throttle(rangeChangedUnthrottled, 16);
const popup = new maplibregl.Popup({
closeButton: true,
closeOnClick: false,
maxWidth: "none",
});
map.on('click', 'places-text', (e) => {
if (e.features.length > 0) {
const feature = e.features[0];
popup.setHTML(
`
<table style="font-size:12px">
<tr>
<td>name:</td>
<td>${feature.properties['@name']}</td>
</tr>
<tr>
<td>confidence:</td>
<td>${feature.properties['confidence']}</td>
</tr>
<tr>
<td>category_main:</td>
<td>${feature.properties['@category']}</td>
</tr>
</table>
`);
popup.setLngLat(e.lngLat);
popup.addTo(map);
}
});
document.getElementById('releases').addEventListener('change', function(e) {
console.log(map.getSource("overture-places").setUrl(`pmtiles://https://data.source.coop/protomaps/overture/${e.target.value}/places.pmtiles`));
});
</script>
</body>
</html>