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January 20, 2021 08:28
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One million markers
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<!DOCTYPE html> | |
<html> | |
<head> | |
<meta charset='utf-8' /> | |
<title></title> | |
<meta name='viewport' content='initial-scale=1,maximum-scale=1,user-scalable=no' /> | |
<script src='https://unpkg.com/mapillary-js@3.1.0/dist/mapillary.min.js'></script> | |
<link href='https://unpkg.com/mapillary-js@3.1.0/dist/mapillary.min.css' rel='stylesheet' /> | |
<style> | |
html, body { margin: 0; padding: 0; height: 100%; } | |
#mly { height: 100%; } | |
</style> | |
</head> | |
<body> | |
<div id='mly'></div> | |
<script> | |
var mly = new Mapillary.Viewer({ | |
apiClient: 'QjI1NnU0aG5FZFZISE56U3R5aWN4Zzo3NTM1MjI5MmRjODZlMzc0', | |
component: { | |
cover: false, | |
marker: true, | |
}, | |
container: 'mly', | |
}); | |
var createRandomMarkers = function(start, count, latLon) { | |
// Create markers in a bounding box with center at latLon | |
var getRandomUniform = function(min, max) { | |
return Math.random() * (max - min) + min; | |
}; | |
var boxWidth = 0.1; | |
var minLat = latLon.lat - boxWidth / 2; | |
var maxLat = latLon.lat + boxWidth / 2; | |
var minLon = latLon.lon - boxWidth / 2; | |
var maxLon = latLon.lon + boxWidth / 2; | |
var markers = []; | |
for (var i = start; i < start + count; i++) { | |
var lat = getRandomUniform(minLat, maxLat); | |
var lon = getRandomUniform(minLon, maxLon); | |
// Create interactive simple markers to make them draggable | |
var marker = new Mapillary.MarkerComponent.SimpleMarker( | |
i.toString(), { lat: lat, lon: lon, }, { interactive: true }); | |
markers.push(marker); | |
} | |
return markers; | |
}; | |
var batchSize = 1000; | |
var markerCount = 0; | |
var markerComponent = mly.getComponent("marker"); | |
// Start creating and adding markers when node has been set | |
mly.moveToKey('6Zhtztzt67fWmdd4OYH44w') | |
.then( | |
function(n) { | |
var intervalId = window.setInterval(function() { | |
var markers = createRandomMarkers(markerCount, batchSize, n.latLon); | |
markerComponent.add(markers); | |
markerCount += batchSize; | |
if (markerCount >= 1e6) { | |
window.clearInterval(intervalId); | |
console.log("Done adding:", markerCount) | |
} | |
}, | |
5); | |
}, | |
function(e) { console.error(e); }); | |
// Viewer size is dynamic so resize should be called every time the window size changes | |
window.addEventListener("resize", function() { mly.resize(); }); | |
</script> | |
</body> | |
</html> |
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