Using d3.carto.layer with d3.carto.map.
Each d3.carto.layer is defined and then added to the map using map.addCartoLayer. You can access the added layers using map.layers(). Each layer fires a "load" event once successfully added to the map.
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| <html xmlns="http://www.w3.org/1999/xhtml"> | |
| <head> | |
| <title>d3.carto.map - d3.carto.layer</title> | |
| <meta charset="utf-8" /> | |
| <link type="text/css" rel="stylesheet" href="https://raw.githubusercontent.com/emeeks/d3-carto-map/master/d3map.css" /> | |
| <link type="text/css" rel="stylesheet" href="https://raw.githubusercontent.com/emeeks/d3-carto-map/master/examples/example.css" /> | |
| </head> | |
| <style> | |
| html,body { | |
| height: 100%; | |
| width: 100%; | |
| margin: 0; | |
| } | |
| #map { | |
| height: 100%; | |
| width: 100%; | |
| position: absolute; | |
| } | |
| </style> | |
| <script> | |
| function makeSomeMaps() { | |
| map = d3.carto.map(); | |
| d3.select("#map").call(map); | |
| tileLayer = d3.carto.layer(); | |
| tileLayer | |
| .type("tile") | |
| .path("examples.map-zgrqqx0w") | |
| .label("Base") | |
| .on("load", recenter); | |
| geojsonLayer = d3.carto.layer(); | |
| geojsonLayer | |
| .type("geojson") | |
| .path("http://bl.ocks.org/emeeks/raw/c970c9ee3e242e90004b/world.geojson") | |
| .label("GeoBorders") | |
| .cssClass("countryborders") | |
| .renderMode("canvas") | |
| .on("load", createFeatureLayer); | |
| topojsonLayer = d3.carto.layer(); | |
| topojsonLayer | |
| .type("topojson") | |
| .path("http://bl.ocks.org/emeeks/raw/c970c9ee3e242e90004b/sample_routes.topojson") | |
| .label("TopoRoutes") | |
| .cssClass("roads") | |
| .renderMode("canvas") | |
| .on("load", function() {console.log("load topojson")}); | |
| csvLayer = d3.carto.layer(); | |
| csvLayer | |
| .type("csv") | |
| .path("http://bl.ocks.org/emeeks/raw/c970c9ee3e242e90004b/sample_points.csv") | |
| .label("CSV Points") | |
| .cssClass("pinkcircle") | |
| .renderMode("svg") | |
| .markerSize(3) | |
| .x("x") | |
| .y("y") | |
| .on("load", changeMarkers); | |
| xyLayer = d3.carto.layer(); | |
| xyLayer | |
| .type("xyarray") | |
| .features([{x: 5, y: 40},{x: 5, y: 50}]) | |
| .label("XY Array") | |
| .cssClass("greencircle") | |
| .renderMode("svg") | |
| .markerSize(30) | |
| .x("x") | |
| .y("y") | |
| .on("load", function(){console.log("load xyarray")}); | |
| map.addCartoLayer(tileLayer); | |
| map.addCartoLayer(topojsonLayer); | |
| map.addCartoLayer(geojsonLayer); | |
| map.addCartoLayer(csvLayer); | |
| map.addCartoLayer(xyLayer); | |
| function recenter() { | |
| map.centerOn([-0.1275,51.507],"latlong",5000); | |
| } | |
| function changeMarkers() { | |
| d3.selectAll("g.pinkcircle").select("circle").remove(); | |
| d3.selectAll("g.pinkcircle").datum({e: 0}).append("rect").attr("class", "bluesquare").attr("height", 5).attr("width",5).attr("x",-2.5).attr("y",-2.5) | |
| // To get the graphical elements to scale you need to do this | |
| map.refresh(); | |
| } | |
| function createFeatureLayer() { | |
| var featuresArray = []; | |
| var mapLayers = map.layers(); | |
| mapLayers.forEach(function (layer) { | |
| if (layer.label() == "GeoBorders") { | |
| featuresArray = layer.features(); | |
| } | |
| }) | |
| shortNameCountries = featuresArray.filter(function(d) {return d.properties.name.length < 7}) | |
| featureLayer = d3.carto.layer(); | |
| featureLayer | |
| .type("featurearray") | |
| .features(shortNameCountries) | |
| .label("Feature Array") | |
| .cssClass("halffilledcountries") | |
| .renderMode("svg") | |
| .on("load", function(){console.log("load featurearray")}); | |
| map.addCartoLayer(featureLayer); | |
| } | |
| } | |
| </script> | |
| <body onload="makeSomeMaps()"> | |
| <div id="map"></div> | |
| <footer> | |
| <script src="https://rawgit.com/emeeks/d3-carto-map/master/resources/d3.v3.min.js" type="text/javascript"></script> | |
| <script src="https://rawgit.com/emeeks/d3-carto-map/master/resources/topojson.js" type="text/javascript"> | |
| </script> | |
| <script src="https://rawgit.com/emeeks/d3-carto-map/master/resources/d3.geo.projection.min.js" type="text/javascript"> | |
| </script> | |
| <script src="https://rawgit.com/emeeks/d3-carto-map/master/resources/tile.js" type="text/javascript"> | |
| </script> | |
| <script src="https://rawgit.com/emeeks/d3-carto-map/master/resources/d3.quadtiles.js" type="text/javascript"> | |
| </script> | |
| <script src="https://rawgit.com/emeeks/d3-carto-map/master/resources/d3.geo.raster.js" type="text/javascript"> | |
| </script> | |
| <script src="https://rawgit.com/emeeks/d3-carto-map/master/d3.carto.map.js" type="text/javascript"> | |
| </script> | |
| </footer> | |
| </body> | |
| </html> |
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