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Toggling sublayers in named maps
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| { | |
| "auth": { | |
| "method": "open" | |
| }, | |
| "layergroup": { | |
| "layers": [ | |
| { | |
| "options": { | |
| "cartocss": "#namedmap_ex_sql_multilayer{ marker-width: 10; marker-fill: #FF0000; marker-allow-overlap: true;}", | |
| "cartocss_version": "2.0.1", | |
| "interactivity": [ | |
| "cartodb_id", | |
| "adm1name", | |
| "name" | |
| ], | |
| "sql": "SELECT * FROM named_map_sql_example_table WHERE megacity != 1 AND featurecla != 'Admin-0 capital' AND <%= layer0 %> = 1" | |
| }, | |
| "type": "mapnik" | |
| }, | |
| { | |
| "options": { | |
| "cartocss": "#namedmap_ex_sql_multilayer{ marker-width: 10; marker-fill: #00FF00; marker-allow-overlap: true;}", | |
| "cartocss_version": "2.0.1", | |
| "interactivity": [ | |
| "cartodb_id", | |
| "adm1name", | |
| "name" | |
| ], | |
| "sql": "SELECT * FROM named_map_sql_example_table WHERE featurecla = 'Admin-0 capital' AND megacity != 1 AND <%= layer1 %> = 1" | |
| }, | |
| "type": "mapnik" | |
| }, | |
| { | |
| "options": { | |
| "cartocss": "#namedmap_ex_sql_multilayer{ marker-width: 10; marker-fill: #0000FF; marker-allow-overlap: true; }", | |
| "cartocss_version": "2.0.1", | |
| "interactivity": [ | |
| "cartodb_id", | |
| "adm1name", | |
| "name" | |
| ], | |
| "sql": "SELECT * FROM named_map_sql_example_table WHERE megacity = 1 AND featurecla != 'Admin-0 capital' AND <%= layer2 %> = 1" | |
| }, | |
| "type": "mapnik" | |
| } | |
| ] | |
| }, | |
| "name": "namedmap_ex_sql_multilayer", | |
| "version": "0.0.1" | |
| } |
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| <!DOCTYPE html> | |
| <html> | |
| <head> | |
| <title>Named Map with Interactivity | CartoDB.js</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; | |
| } | |
| .showhide { | |
| height: 50px; | |
| width: 100px; | |
| background: rgba(255,0,0,0.8); | |
| position: absolute; | |
| top: 20px; | |
| right: 20px; | |
| padding: 5px; | |
| border: 1px solid #FFF; | |
| border-radius: 5px; | |
| cursor: pointer; | |
| } | |
| </style> | |
| <link rel="stylesheet" href="http://libs.cartocdn.com/cartodb.js/v3/themes/css/cartodb.css" /> | |
| <!--[if lte IE 8]> | |
| <link rel="stylesheet" href="http://libs.cartocdn.com/cartodb.js/v3/themes/css/cartodb.ie.css" /> | |
| <![endif]--> | |
| </head> | |
| <body> | |
| <div id="map"></div> | |
| <div id="layer0" class="showhide" data="0">Show/hide layer 0</div> | |
| <div id="layer1" class="showhide" data="1" style="top: 102px; background: rgba(0,255,0,0.8);">Show/hide layer 1</div> | |
| <div id="layer2" class="showhide" data="2" style="top: 184px; background: rgba(0,0,255,0.8);">Show/hide layer 2</div> | |
| <!-- include cartodb.js library --> | |
| <script src="http://libs.cartocdn.com/cartodb.js/v3/cartodb.js"></script> | |
| <script> | |
| function main() { | |
| // create leaflet map | |
| var map = L.map('map', { | |
| zoomControl: false, | |
| scrollWheelZoom: false, | |
| center: [43, 0], | |
| zoomControl: true, | |
| zoom: 2 | |
| }) | |
| // add a base layer | |
| L.tileLayer('http://tile.stamen.com/toner/{z}/{x}/{y}.png', { | |
| attribution: 'Stamen' | |
| }).addTo(map); | |
| var namedLayerSource = { | |
| user_name: 'andye', | |
| type: 'namedmap', | |
| named_map: { | |
| name: "namedmap_ex_sql_multilayer", | |
| layers: [{ | |
| layer_name: "populated_places", | |
| interactivity: "cartodb_id, adm1name, name" | |
| }, | |
| { | |
| layer_name: "capitals", | |
| interactivity: "cartodb_id, adm1name, name" | |
| }, | |
| { | |
| layer_name: "megacities", | |
| interactivity: "cartodb_id, adm1name, name" | |
| }] | |
| } | |
| } | |
| // add cartodb layer with one sublayer | |
| cartodb.createLayer(map, namedLayerSource) | |
| .addTo(map) | |
| .done(function(layer) { | |
| // Enable interactions events for all sublayers | |
| for (var i = 0; i < layer.getSubLayerCount(); ++i ) { | |
| layer.getSubLayer(i).on('featureOver', function(e, pos, pixel, data) { | |
| console.log("Event #" + data.cartodb_id + ", name " + data.name); | |
| }); | |
| cdb.vis.Vis.addInfowindow(map,layer.getSubLayer(i),['cartodb_id','name']); | |
| } | |
| console.log(layer.getSubLayerCount()); | |
| var toggle = false; | |
| $(".showhide").on('click', function(e) { | |
| var layerNum = +$(e.target).attr('data'); | |
| toggle = layer.getSubLayer(layerNum).toggle(); | |
| console.log("layer " + layerNum + " toggled: " + toggle); | |
| }); | |
| }) | |
| .error(function(err) { | |
| console.log("error: " + err); | |
| }); | |
| } | |
| window.onload = main; | |
| </script> | |
| </body> | |
| </html> |
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