Number of responses by zip code from the USGS' site from the 2011-11-05 3.2 quake near Piedmont, CA, USA, via Yahoo! Pipes.
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California earthquake responses by zip code
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| <!DOCTYPE html> | |
| <html> | |
| <head> | |
| <meta http-equiv="Content-Type" content="text/html;charset=utf-8"/> | |
| <title>USGS responses by zip to the 2011-11-05 3.2 earthquake near Piedmont, CA, USA</title> | |
| <script src="http://mbostock.github.com/d3/d3.js?2.5.0"></script> | |
| <script src="http://mbostock.github.com/d3/d3.geo.js?2.5.0"></script> | |
| <script src="http://mbostock.github.com/d3/d3.csv.js?2.5.0"></script> | |
| <link href="http://mbostock.github.com/d3/talk/20111018/style.css" rel="stylesheet"/> | |
| <link href="http://mbostock.github.com/d3/talk/20111018/colorbrewer/colorbrewer.css" rel="stylesheet"/> | |
| <style type="text/css"> | |
| #states path { | |
| fill: none; | |
| stroke: #fff; | |
| stroke-width: 1.5px; | |
| } | |
| </style> | |
| </head> | |
| <body> | |
| <div id="body"> | |
| <div id="footer"> | |
| USGS Earthquake comments, 2011 | |
| <div class="hint">use the menu to change the color scale</div> | |
| <div><select> | |
| <optgroup label="Colors by Cynthia Brewer."> | |
| <option value="YlGn">YlGn</option> | |
| <option value="YlGnBu">YlGnBu</option> | |
| <option value="GnBu">GnBu</option> | |
| <option value="BuGn">BuGn</option> | |
| <option value="PuBuGn">PuBuGn</option> | |
| <option value="PuBu">PuBu</option> | |
| <option value="BuPu">BuPu</option> | |
| <option value="RdPu">RdPu</option> | |
| <option value="PuRd">PuRd</option> | |
| <option value="OrRd">OrRd</option> | |
| <option value="YlOrRd" selected>YlOrRd</option> | |
| <option value="YlOrBr">YlOrBr</option> | |
| <option value="Purples">Purples</option> | |
| <option value="Blues">Blues</option> | |
| <option value="Greens">Greens</option> | |
| <option value="Oranges">Oranges</option> | |
| <option value="Reds">Reds</option> | |
| <option value="Greys">Greys</option> | |
| </optgroup> | |
| </select></div> | |
| </div> | |
| </div> | |
| <script src="y_pipes.js"></script> | |
| <script src="index.js"></script> | |
| </body> | |
| </html> |
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| var usgs_dir = 'http://earthquake.usgs.gov/earthquakes/dyfi/events/nc/' | |
| , usgs_evt = '71676251' // 2011-11-05 3.2 quake near Piedmont, CA, USA | |
| , usgs_csv = '/us/cdi_zip.txt' | |
| , usgs_url = usgs_dir + usgs_evt + usgs_csv | |
| ; | |
| var path = d3.geo.path() | |
| .projection(d3.geo.albersUsa() | |
| .scale(1400) | |
| .translate([680, 360])); | |
| var svg = d3.select("#body").append("svg:svg") | |
| .attr("class", "YlOrRd") | |
| .attr("width", 960) | |
| .attr("height", 500) | |
| .append('svg:g') | |
| .attr("transform", "scale(1.9) translate(-100 -198)") | |
| ; | |
| var zipcodes = svg.append("svg:g") | |
| .attr("id", "ca-zipcodes"); | |
| var states = svg.append("svg:g") | |
| .attr("id", "states"); | |
| load_csv(usgs_url, show, { header_cb: parse_header, line_cb: parse_line }); | |
| function parse_header(name, n) { | |
| return ({ '# Columns: ZIP/Location': 'zip' | |
| , 'CDI': 'cdi' | |
| , 'No. of responses': 'responses' | |
| , 'Epicentral distance': 'dist' | |
| , 'Latitude': 'lat' | |
| , 'Longitude': 'lng' | |
| , 'Suspect?': 'suspect' | |
| , 'City': 'city' | |
| , 'State': 'state' | |
| })[name]; | |
| } | |
| function parse_line(val, n) { | |
| return ([ String // zip | |
| , String // cdi | |
| , Number // responses | |
| , Number // dist | |
| , Number // lat | |
| , Number // lng | |
| , Number // suspect | |
| , String // city | |
| , String // state | |
| ])[n](val); | |
| } | |
| function show(csv) { | |
| function sum(arr) { return d3.sum(arr, function(d){ return d.responses; }); } | |
| function padded_zip(d) { return pad(d.zip); } | |
| var pad = d3.format("05d") | |
| , data = d3.nest().key(padded_zip).rollup(sum).map(csv) | |
| , max = d3.max(d3.values(data)) | |
| , quantize = d3.scale.linear().domain([0, max]).rangeRound([0, 8]); | |
| window.data = data; // for ease of inspection | |
| d3.json("zips-ca.json", function(json) { | |
| zipcodes.selectAll("path") | |
| .data(json.features) | |
| .enter().append("svg:path") | |
| .attr("class", function(d) { | |
| return "q" + quantize(data[pad(d.id)] || 0) + "-9"; | |
| }) | |
| .attr("d", path) | |
| .append("svg:title") | |
| .text(function(d) { | |
| var no = data[pad(d.id)] || 0; | |
| return d.id + ": " + no + " responses"; | |
| }); | |
| }); | |
| } | |
| d3.json("us-ca.json", function(json) { | |
| states.selectAll("path") | |
| .data(json.features) | |
| .enter().append("svg:path") | |
| .attr("d", path); | |
| }); | |
| d3.select("select").on("change", function() { | |
| d3.selectAll("svg").attr("class", this.value); | |
| }); |
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| {"type":"FeatureCollection","features": | |
| [{"type":"Feature","id":"06","properties":{"name":"California"},"geometry":{"type":"Polygon","coordinates":[[[-123.233256,42.006186],[-122.378853,42.011663],[-121.037003,41.995232],[-120.001861,41.995232],[-119.996384,40.264519],[-120.001861,38.999346],[-118.71478,38.101128],[-117.498899,37.21934],[-116.540435,36.501861],[-115.85034,35.970598],[-114.634459,35.00118],[-114.634459,34.87521],[-114.470151,34.710902],[-114.333228,34.448009],[-114.136058,34.305608],[-114.256551,34.174162],[-114.415382,34.108438],[-114.535874,33.933176],[-114.497536,33.697668],[-114.524921,33.54979],[-114.727567,33.40739],[-114.661844,33.034958],[-114.524921,33.029481],[-114.470151,32.843265],[-114.524921,32.755634],[-114.72209,32.717295],[-116.04751,32.624187],[-117.126467,32.536556],[-117.24696,32.668003],[-117.252437,32.876127],[-117.329114,33.122589],[-117.471515,33.297851],[-117.7837,33.538836],[-118.183517,33.763391],[-118.260194,33.703145],[-118.413548,33.741483],[-118.391641,33.840068],[-118.566903,34.042715],[-118.802411,33.998899],[-119.218659,34.146777],[-119.278905,34.26727],[-119.558229,34.415147],[-119.875891,34.40967],[-120.138784,34.475393],[-120.472878,34.448009],[-120.64814,34.579455],[-120.609801,34.858779],[-120.670048,34.902595],[-120.631709,35.099764],[-120.894602,35.247642],[-120.905556,35.450289],[-121.004141,35.461243],[-121.168449,35.636505],[-121.283465,35.674843],[-121.332757,35.784382],[-121.716143,36.195153],[-121.896882,36.315645],[-121.935221,36.638785],[-121.858544,36.6114],[-121.787344,36.803093],[-121.929744,36.978355],[-122.105006,36.956447],[-122.335038,37.115279],[-122.417192,37.241248],[-122.400761,37.361741],[-122.515777,37.520572],[-122.515777,37.783465],[-122.329561,37.783465],[-122.406238,38.15042],[-122.488392,38.112082],[-122.504823,37.931343],[-122.701993,37.893004],[-122.937501,38.029928],[-122.97584,38.265436],[-123.129194,38.451652],[-123.331841,38.566668],[-123.44138,38.698114],[-123.737134,38.95553],[-123.687842,39.032208],[-123.824765,39.366301],[-123.764519,39.552517],[-123.85215,39.831841],[-124.109566,40.105688],[-124.361506,40.259042],[-124.410798,40.439781],[-124.158859,40.877937],[-124.109566,41.025814],[-124.158859,41.14083],[-124.065751,41.442061],[-124.147905,41.715908],[-124.257444,41.781632],[-124.213628,42.000709],[-123.233256,42.006186]]]}} | |
| ] | |
| } |
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| // Loads a csv file cross-domain from anywhere via Yahoo! Pipes | |
| function load_csv(url, cb, opts) { | |
| function format(raw) { | |
| // Y| rows are listed as objects with col_1, ... col_n properties; arrayify | |
| function rollup(row) { | |
| for (var c = 1, col, arr = []; row.hasOwnProperty(col = 'col_'+ c); c++) | |
| arr.push(row[col]); | |
| return col_cb ? arr.map(col_cb) : arr; | |
| } | |
| function object(arr) { | |
| function stow(val, idx) { data[headers[idx]] = val; } | |
| var data = {}; | |
| arr.forEach(stow); | |
| return data; | |
| } | |
| var col_cb = opts.header_cb | |
| , headers = rollup(raw.value.items[0]); | |
| col_cb = opts.line_cb; | |
| return raw.value.items.slice(1).map(rollup).map(object); | |
| } | |
| var pipe = 'a1aa6137151bc86851b7b65373f95bce' | |
| , nth = load_csv.nth = (load_csv.nth || 0) + 1 | |
| , name = 'cb' + nth.toString(36) | |
| , skip = encodeURIComponent(opts.skip_lines || 0) | |
| , head = encodeURIComponent(opts.hdr_line_no || 0) | |
| , purl = 'http://pipes.yahoo.com/pipes/pipe.run?_id='+ pipe | |
| + '&_render=json&_callback=load_csv.' + name | |
| + '&u=' + encodeURIComponent(url) +'&x='+ skip +'&c='+ head | |
| , load = document.createElement('script'); | |
| load_csv[name] = function(json) { | |
| delete load_csv[name]; | |
| document.head.removeChild(load); | |
| cb(format(json)); | |
| }; | |
| load.src = purl; | |
| document.head.appendChild(load); | |
| } | |
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