Demonstrates switching between mapped attributes using sublayers of a CartoDB layer.
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October 30, 2015 19:01
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CartoDB sublayer switcher
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| <!DOCTYPE html> | |
| <html> | |
| <head> | |
| <title>MUG</title> | |
| <meta name="viewport" content="initial-scale=1.0, user-scalable=no" /> | |
| <meta http-equiv="content-type" content="text/html; charset=UTF-8"/> | |
| <link rel="shortcut icon" href="http://cartodb.com/assets/favicon.ico" /> | |
| <style> | |
| html, body, #map { | |
| height: 100%; | |
| padding: 0; | |
| margin: 0; | |
| } | |
| #layer-controls { | |
| position: absolute; | |
| top: 15px; | |
| right: 15px; | |
| margin: 10px 15px; | |
| z-index: 100; | |
| } | |
| </style> | |
| <link rel="stylesheet" href="http://libs.cartocdn.com/cartodb.js/v3/3.15/themes/css/cartodb.css" /> | |
| </head> | |
| <body> | |
| <div id="layer-controls"> | |
| <button id="sublayer0" class="btn">gas</button> | |
| <button id="sublayer1" class="btn">oil</button> | |
| <button id="sublayer2" class="btn">d&a</button> | |
| </div> | |
| <div id="map"></div> | |
| <script type="cartocss/html" id="wells-styles"> | |
| #ky_oil_and_gas_wells { | |
| marker-fill-opacity: 0.9; | |
| marker-line-color: #FFF; | |
| marker-line-width: .2; | |
| marker-line-opacity: 1; | |
| marker-placement: point; | |
| marker-type: ellipse; | |
| marker-width: 3; | |
| marker-allow-overlap: true; | |
| [zoom > 9]{ | |
| marker-width: 5; | |
| } | |
| [zoom > 9]{ | |
| marker-width:7; | |
| } | |
| [zoom > 9]{ | |
| marker-width:9; | |
| } | |
| } | |
| #ky_oil_and_gas_wells[org_result="D&A"] { | |
| marker-fill: #a6cee3; | |
| } | |
| #ky_oil_and_gas_wells[org_result="GAS"] { | |
| marker-fill: #FF5C00; | |
| } | |
| #ky_oil_and_gas_wells[org_result="OIL"] { | |
| marker-fill: #850200; | |
| } | |
| </script> | |
| <script src="http://libs.cartocdn.com/cartodb.js/v3/3.15/cartodb.js"></script> | |
| <script> | |
| var map = new L.Map("map", { | |
| center: [38.8369, -84.6847], | |
| zoom: 7 | |
| }); | |
| L.tileLayer('http://tile.stamen.com/toner/{z}/{x}/{y}.png', { | |
| attribution: 'Stamen' | |
| }).addTo(map); | |
| var layerSource = { | |
| user_name: 'rgdonohue', | |
| type: 'cartodb', | |
| sublayers: [{ | |
| sql: "SELECT * FROM ky_oil_and_gas_wells WHERE org_result='GAS'", | |
| cartocss: $("#wells-styles").text() | |
| }, | |
| { | |
| sql: "SELECT * FROM ky_oil_and_gas_wells WHERE org_result='OIL'", | |
| cartocss: $("#wells-styles").text() | |
| }, | |
| { | |
| sql: "SELECT * FROM ky_oil_and_gas_wells WHERE org_result='D&A'", | |
| cartocss: $("#wells-styles").text() | |
| }] | |
| } | |
| var sublayers = []; | |
| cartodb.createLayer(map, layerSource) | |
| .addTo(map) | |
| .done(function(layer) { | |
| for (var i = 0; i < layer.getSubLayerCount(); i++) { | |
| sublayers[i] = layer.getSubLayer(i); | |
| } | |
| }) | |
| .error(function(err) { | |
| console.log("An error occurred: " + err); | |
| }); | |
| $("#layer-controls button").on('click', function(e) { | |
| var currentLayer = $(e.target).attr('id'), | |
| currentIndex = currentLayer.slice(-1); | |
| sublayers[currentIndex].toggle(); | |
| }); | |
| </script> | |
| </body> | |
| </html> |
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