Created
February 11, 2020 08:35
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CARTO.js v4: Change zoom level when click on geometry
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| <!DOCTYPE html> | |
| <html> | |
| <head> | |
| <meta charset="utf-8" /> | |
| <meta name="viewport" content="width=device-width"> | |
| <!-- Include Carto.js --> | |
| <script src="https://libs.cartocdn.com/carto.js/v4.2.0/carto.min.js"></script> | |
| <!-- Include Leaflet --> | |
| <script src="https://unpkg.com/leaflet@1.5.1/dist/leaflet.js"></script> | |
| <link href="https://unpkg.com/leaflet@1.5.1/dist/leaflet.css" rel="stylesheet"> | |
| <style> | |
| #map { | |
| width: 100%; | |
| height: 100vh; | |
| } | |
| </style> | |
| </head> | |
| <body> | |
| <div id="map"></div> | |
| <script> | |
| const map = L.map('map').setView([41.38, 2.18], 11); | |
| L.tileLayer('https://{s}.basemaps.cartocdn.com/rastertiles/voyager_nolabels/{z}/{x}/{y}.png', { | |
| maxZoom: 18 | |
| }).addTo(map); | |
| // define client | |
| const client = new carto.Client({ | |
| apiKey: 'default_public', | |
| username: 'oboix' | |
| }); | |
| // define source of data using a SQL query | |
| const source = new carto.source.SQL(` | |
| SELECT * FROM districtes_barcelona | |
| `); | |
| // define CartoCSS code to style data on map | |
| const style = new carto.style.CartoCSS(` | |
| #layer{ | |
| polygon-fill: tomato; | |
| } | |
| `); | |
| // create CARTO layer from source and style variables | |
| const cartoLayer = new carto.layer.Layer(source, style, { | |
| featureClickColumns: ['cartodb_id'] | |
| }); | |
| // when feature is clicked, change zoom to level 13 | |
| cartoLayer.on('featureClicked', function (featureEvent) { | |
| let polygon_selected = featureEvent.data.cartodb_id; | |
| map.setView(featureEvent.latLng, 13) | |
| }) | |
| // add CARTO layer to the client | |
| client.addLayer(cartoLayer); | |
| // get tiles from client and add them to the map object | |
| client.getLeafletLayer().addTo(map); | |
| </script> | |
| </body> | |
| </html> |
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