Skip to content

Instantly share code, notes, and snippets.

@jatorre

jatorre/README.md

Last active April 23, 2020 13:10
Show Gist options
  • Star 1 You must be signed in to star a gist
  • Fork 0 You must be signed in to fork a gist
  • Save jatorre/5fc3160551b2ece8ef708673905aec5e to your computer and use it in GitHub Desktop.
Save jatorre/5fc3160551b2ece8ef708673905aec5e to your computer and use it in GitHub Desktop.
Download ZIP
Example Mapbox + CARTO map using Vector Tiles
Raw
README.md

Example Usage of CARTO Vector Tiles with MapboxGL

This example showcase how to simply use the new capabilities of CARTO for producing Mapbox Vector Tiles from its Maps API.

Raw
index.html
<!DOCTYPE html>
<html>
<head>
<meta charset='utf-8' />
<title>MapboxGL VECTOR CartoBasemaps and Vector DATA</title>
<meta name='viewport' content='initial-scale=1,maximum-scale=1,user-scalable=no' />
<script src='https://api.tiles.mapbox.com/mapbox-gl-js/v0.43.0/mapbox-gl.js'></script>
<link href='https://api.tiles.mapbox.com/mapbox-gl-js/v0.43.0/mapbox-gl.css' rel='stylesheet' />
<script src="https://cdnjs.cloudflare.com/ajax/libs/nanoajax/0.4.3/nanoajax.min.js"></script>
<style>
body { margin:0; padding:0; }
#map { position:absolute; top:0; bottom:0; width:100%; }
</style>
</head>
<body>
<div id='map'></div>
<script>
var map = new mapboxgl.Map({
container: 'map',
style: 'http://basemaps.cartocdn.com/gl/dark-matter-gl-style/style.json',
center: [-73.99952307865874,40.720456948272926],
zoom: 13.591813153603,
pitch: 60,
bearing: 8
});
map.on('style.load', function () {
var sql = "select cartodb_id, \
st_Buffer(the_geom_webmercator,40) as the_geom_webmercator, \
numfloors from pluto15v1 \
WHERE numfloors>30";
var username = "cwhong";
//Direct call to the CARTO Maps API, now with Mapbox Vector Tiles support
//https://carto.com/docs/carto-engine/maps-api/
var mapConfig = {"layers":[{"id":"pluto15v1","options":{"sql":sql}}]};
mapConfig = encodeURIComponent(JSON.stringify(mapConfig));
nanoajax.ajax({
url:'https://'+username+'.carto.com/api/v1/map?config='+mapConfig},
function (code, resp){
cartoLayer = JSON.parse(resp);
cartoSource = {
type: 'vector',
tiles: cartoLayer.metadata.tilejson.vector.tiles,
};
map.addSource('cartoSource', cartoSource);
map.addLayer({
'id': 'pluto',
'type': 'fill-extrusion',
'source': 'cartoSource',
'source-layer': 'pluto15v1',
'paint': {
"fill-extrusion-height": {
"base": 1,
"type": "exponential",
"property": "numfloors",
"stops": [[0,5],[1,16],[2,16],[4,16],[8,32],[16,64],[32,128],[64,256],[200,512]]
},
"fill-extrusion-color": {
"base": 1,
"type": "exponential",
"property": "numfloors",
"stops": [[0,"#EEE"],[1,"#F7FCF0"],[2,"#E0F3DB"],[4,"#CCEBC5"],[8,"#A8DDB5"],
[16,"#7BCCC4"],[32,"#2B8CBE"],[64,"#0868AC"],[200,"#084081"]],
"default": "#EEE"
},
"fill-extrusion-opacity": 1,
"fill-extrusion-base": 5
}
//Labels on top of data. Using CARTO basemap, so the layer "place_town" is
//the place to make the sandwich
},'place_town');
});
});
</script>
</body>
</html>
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment