-
-
Save ryanbaumann/7a5480c20f2de3aba91bb19435403b3b to your computer and use it in GitHub Desktop.
great arc circles client side mapbox gl js
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
<!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://api.tiles.mapbox.com/mapbox-gl-js/v0.45.0/mapbox-gl.js'></script> | |
<script src='https://api.mapbox.com/mapbox.js/plugins/arc.js/v0.1.0/arc.js'></script> | |
<link href='https://api.tiles.mapbox.com/mapbox-gl-js/v0.45.0/mapbox-gl.css' rel='stylesheet' /> | |
<style> | |
body { | |
margin: 0; | |
padding: 0; | |
} | |
#map { | |
position: absolute; | |
top: 0; | |
bottom: 0; | |
width: 100%; | |
} | |
</style> | |
</head> | |
<body> | |
<div id='map'></div> | |
<script> | |
mapboxgl.accessToken = 'pk.eyJ1IjoicnNiYXVtYW5uIiwiYSI6IjdiOWEzZGIyMGNkOGY3NWQ4ZTBhN2Y5ZGU2Mzg2NDY2In0.jycgv7qwF8MMIWt4cT0RaQ'; | |
var map = new mapboxgl.Map({ | |
container: 'map', | |
style: 'mapbox://styles/mapbox/dark-v9?optimize=true', | |
center: [-122.486052, 37.830348], | |
zoom: 0 | |
}); | |
function getRandomInRange(from, to, fixed) { | |
return (Math.random() * (to - from) + from).toFixed(fixed) * 1; | |
// .toFixed() returns string, so ' * 1' is a trick to convert to number | |
} | |
var num_points = 1000 | |
var arc_geojson = { | |
"type": "FeatureCollection", | |
"features": [] | |
} | |
for (var i = 0; i < num_points; i++) { | |
let origin = { x: getRandomInRange(-122, 47, 3), y: getRandomInRange(-45, 45, 3) } | |
let destination = {x: getRandomInRange(-74, 20, 3), y: getRandomInRange(-45, 45, 3)} | |
let generator = new arc.GreatCircle(origin, destination, { metric: getRandomInRange(0, 100, 0) }); | |
let line = generator.Arc(100, { offset: 10 }); | |
arc_geojson.features.push(line.json()); | |
} | |
map.on('style.load', function() { | |
map.addSource('arcs', { | |
"type": "geojson", | |
"data": arc_geojson | |
}) | |
map.addLayer({ | |
"id": "route", | |
"type": "line", | |
"source": 'arcs', | |
"layout": { | |
"line-join": "round", | |
"line-cap": "round" | |
}, | |
"paint": { | |
"line-color": { | |
'property': 'metric', | |
'type': 'exponential', | |
'stops': [[10, '#ffeda0'], [50, '#feb24c'], [75, '#f03b20']] | |
}, | |
"line-width": { | |
"stops": [[0,0.2], [5,1]] | |
}, | |
"line-opacity": { | |
'property': 'metric', | |
'type': 'exponential', | |
'stops': [[10, 0.1], [100, 1]] | |
} | |
} | |
}, 'waterway-label'); | |
map.addLayer({ | |
"id": "points", | |
"type": "circle", | |
"source": 'arcs', | |
"paint": { | |
"circle-color": 'white', | |
"circle-radius": { | |
stops: [[0,0.5], [5,1]] | |
} | |
} | |
}, 'waterway-label'); | |
}); | |
</script> | |
</body> | |
</html> |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment