Created
May 28, 2012 16:35
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Layering maps and D3
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| <!DOCTYPE html> | |
| <html> | |
| <head> | |
| <script type="text/javascript" src="http://mbostock.github.com/d3/d3.js?1.29.5"></script> | |
| <script type="text/javascript" src="http://polymaps.org/polymaps.min.js?2.5.0"></script> | |
| <style type="text/css"> | |
| @import url("http://polymaps.org/style.css"); | |
| html, body { | |
| height: 100%; | |
| background: #E6E6E6; | |
| margin: 0; | |
| font: 10px sans-serif; | |
| } | |
| svg { | |
| display: block; | |
| } | |
| circle { | |
| stroke: black; | |
| fill: brown; | |
| fill-opacity: .5; | |
| } | |
| #map { | |
| width: 960px; | |
| height: 500px; | |
| } | |
| </style> | |
| </head> | |
| <body> | |
| <div id="map"></div> | |
| <script type="text/javascript"> | |
| var po = org.polymaps; | |
| // Create the map object, add it to #map… | |
| var map = po.map() | |
| .container(d3.select("#map").append("svg:svg").node()) | |
| .zoom(8) | |
| .add(po.interact()); | |
| // Add the CloudMade image tiles as a base layer… | |
| map.add(po.image() | |
| .url(po.url("http://{S}tile.cloudmade.com" | |
| + "/5b7ebc9342d84da7b27ca499a238df9d" // http://cloudmade.com/register | |
| + "/537/256/{Z}/{X}/{Y}.png") | |
| .hosts(["a.", "b.", "c.", ""]))); | |
| // Add the compass control on top. | |
| map.add(po.compass() | |
| .pan("none")); | |
| // Load the station data. When the data comes back, display it. | |
| d3.json("stations.json", function(data) { | |
| // Insert our layer beneath the compass. | |
| var layer = d3.select("#map svg").insert("svg:g", ".compass"); | |
| // Add an svg:g for each station. | |
| var marker = layer.selectAll("g") | |
| .data(d3.entries(data)) | |
| .enter().append("svg:g") | |
| .attr("transform", transform); | |
| // Add a circle. | |
| marker.append("svg:circle") | |
| .attr("r", 4.5); | |
| // Add a label. | |
| marker.append("svg:text") | |
| .attr("x", 7) | |
| .attr("dy", ".31em") | |
| .text(function(d) { return d.key; }); | |
| // Whenever the map moves, update the marker positions. | |
| map.on("move", function() { | |
| layer.selectAll("g").attr("transform", transform); | |
| }); | |
| function transform(d) { | |
| d = map.locationPoint({lon: d.value[0], lat: d.value[1]}); | |
| return "translate(" + d.x + "," + d.y + ")"; | |
| } | |
| }); | |
| </script> | |
| </body> | |
| </html> |
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| {"KMAE":[-120.12,36.98,"MADERA MUNICIPAL AIRPORT",[26,1,2,5,6,3,2,1,2,7,29,12,3]],"KSJC":[-121.92,37.37,"SAN JOSE INTERNATIONAL AIRPORT",[28,1,1,1,6,10,5,3,2,4,14,21,7]],"KMCE":[-120.50,37.28,"MERCED MUNICIPAL AIRPORT",[29,1,1,3,7,5,2,1,3,6,12,26,5]],"KMER":[-120.57,37.37,"Merced / Castle Air Force Base",[34,1,1,1,4,5,2,1,1,4,17,22,7]],"KAPC":[-122.28,38.20,"NAPA COUNTY AIRPORT",[23,2,1,6,3,3,8,18,11,13,4,3,5]],"KSUU":[-121.95,38.27,"Fairfield / Travis Air Force Base",[13,7,4,3,3,6,4,13,33,4,1,2,7]],"KSQL":[-122.25,37.52,"San Carlos Airport",[18,3,2,2,3,4,3,2,5,17,16,12,12]],"KSNS":[-121.60,36.67,"SALINAS MUNICIPAL AIRPORT",[21,1,1,6,12,3,1,2,9,21,17,5,1]],"KMOD":[-120.95,37.62,"MODESTO CITY CO SHAM FLD",[27,1,1,2,10,5,1,1,1,3,17,24,8]],"KOAK":[-122.23,37.72,"METRO OAKLAND INTERNATIONAL AIRPORT ",[16,3,3,2,4,6,3,4,9,23,20,6,2]],"KSCK":[-121.23,37.90,"STOCKTON METROPOLITAN AIRPORT ",[21,2,2,3,6,8,2,1,4,15,19,12,4]],"KCCR":[-122.05,38.00,"CONCORD BUCHANAN FIELD",[24,3,2,1,1,5,17,12,9,9,7,6,4]],"KMRY":[-121.85,36.58,"MONTEREY PENINSULA AIRPORT",[26,1,2,9,5,3,4,9,13,14,9,4,1]],"KPAO":[-122.12,37.47,"Palo Alto Airport",[31,3,1,1,2,5,1,1,1,4,10,25,14]],"KSAC":[-121.50,38.50,"SACRAMENTO EXECUTIVE AIRPORT ",[32,1,0,1,3,11,12,16,5,2,4,9,3]],"KHWD":[-122.12,37.67,"HAYWARD AIR TERMINAL",[20,2,7,2,2,6,3,3,6,23,18,6,2]],"KSTS":[-122.82,38.50,"SANTA ROSA SONOMA COUNTY",[46,1,0,1,5,13,10,4,3,3,4,6,3]],"KSMF":[-121.60,38.70,"SACRAMENTO INTERNATIONAL AIRPORT",[19,2,1,2,4,21,18,8,3,2,5,12,4]],"KNUQ":[-122.05,37.43,"MOFFETT FIELD",[35,3,1,1,4,7,2,1,2,5,6,17,15]],"KRHV":[-121.82,37.33,"San Jose / Reid / Hillv",[35,0,0,1,4,4,2,1,1,10,28,11,1]],"KWVI":[-121.78,36.93,"WATSONVILLE MUNICIPAL AIRPORT ",[44,1,2,3,4,5,7,9,8,4,6,5,2]],"KMHR":[-121.30,38.55,"Sacramento, Sacramento Mather Airport",[21,1,1,2,8,15,12,12,7,4,5,7,3]],"KVCB":[-121.95,38.38,"VACAVILLE NUT TREE AIRPORT",[36,2,1,1,2,6,10,18,10,2,2,5,6]],"KSFO":[-122.37,37.62,"SAN FRANCISCO INTERNATIONAL AIRPORT ",[13,3,3,2,3,4,4,4,7,31,20,2,3]],"KLVK":[-121.82,37.70,"LIVERMORE MUNICIPAL AIRPORT ",[32,2,7,3,1,1,2,7,9,17,16,2,1]]} |
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