- full presentation: public.jm3.net
- alternatively: 140proof.github.io/d3-drift
- view Bl.ock: bl.ocks.org/jm3/9768799
- view Gist: gist.github.com/jm3/9768799
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| <!DOCTYPE html> | |
| <head> | |
| <meta charset="utf-8"> | |
| <link type="text/css" href="style.css" rel="stylesheet" media="all" /> | |
| <script src="http://d3js.org/d3.v3.min.js" charset="utf-8"></script> | |
| <script src="//cdnjs.cloudflare.com/ajax/libs/topojson/1.1.0/topojson.min.js"></script> | |
| <!-- <script src="javascripts/queue.js"></script> --> | |
| <script src="//cdnjs.cloudflare.com/ajax/libs/queue-async/1.0.4/queue.min.js"></script> | |
| <script src="//cdnjs.cloudflare.com/ajax/libs/underscore.js/1.6.0/underscore-min.js" type="text/javascript" charset="utf-8"></script> | |
| <script type="text/javascript" charset="utf-8"> | |
| function geoStatJoinChart(options, d3, topojson, _, queue) { | |
| var width = options.width; | |
| var height = options.height; | |
| var latLong = options.latLong; | |
| var scale = options.scale; | |
| var geoDataUrl = options.geoDataUrl; | |
| var statDataUrl = options.statDataUrl; | |
| var lng = latLong[0]; | |
| var lat = latLong[1]; | |
| var colorScale = d3.scale.threshold() | |
| .domain([0.0039062, 0.0078125, 0.015625, 0.03125, 0.0625, 0.125, 0.25, 0.5, 1.0]) | |
| .range(["transparent", "#E0F3DB", "#CCEBC5", "#A8DDB5", "#7BCCC4", "#4EB3D3", "#2B8CBE" , "#0868AC", "#084081"]); | |
| function capitalize(s){ | |
| return s.toLowerCase().replace( /\b./g, function(a){ return a.toUpperCase(); } ); | |
| }; | |
| function longName(s) { | |
| return capitalize(s.replace("-"," ")) + ",CA,US"; | |
| }; | |
| // notice the weird way this has to be done for albers... | |
| var projection = d3.geo.albers() | |
| .translate([(width / 2), (height / 2)]) | |
| .scale(scale) | |
| .rotate([-lng,0]) | |
| .center([0,lat]); | |
| var path = d3.geo.path() | |
| .projection(projection); | |
| var dsv = d3.dsv("|", "text/plain"); | |
| queue() | |
| .defer(d3.json, geoDataUrl) | |
| .defer(dsv, statDataUrl) | |
| .await(ready); | |
| function ready(error, geoData, statData) { | |
| var domElement = document.querySelector("body"); | |
| var regions = document.querySelectorAll("#cities .region"); | |
| _.each(regions, function(region) { | |
| var name = longName(region.id); | |
| createChartWithCity({ | |
| highlightedCity: name, | |
| domElement: region, | |
| geoData: geoData, | |
| statData: statData | |
| }); | |
| }); | |
| } | |
| function createChartWithCity(options) { | |
| var highlightedCity = options.highlightedCity; | |
| var domElement = options.domElement; | |
| var geoData = options.geoData; | |
| var statData = options.statData; | |
| //console.log("createChartWithCity", highlightedCity); | |
| var svg = d3.select(domElement).append("svg") | |
| .attr("width", width) | |
| .attr("height", height); | |
| var observedInHighlightedCity = _.filter(statData, function(d) { | |
| return d.end_city == highlightedCity; | |
| }); | |
| function fillColor(d) { | |
| var ln = longName(d.id); | |
| var cityData = _.find(observedInHighlightedCity, function(d) { return d.start_city == ln } ); | |
| var color; | |
| if (cityData && cityData.prct) { | |
| color = colorScale(cityData.prct); | |
| } | |
| else { | |
| color = "transparent"; | |
| } | |
| return color; | |
| } | |
| // draw the state | |
| svg.append("path") | |
| .datum(topojson.mesh(geoData, geoData.objects.state_border)) | |
| .attr("class", "state-boundary") | |
| .attr("d", path); | |
| // fill the cities | |
| svg.selectAll(".cities-fill") | |
| .data(topojson.feature(geoData, geoData.objects.cities).features) | |
| .enter().append("path") | |
| .attr("class", function(d) { | |
| if (d.id == highlightedCity.split(",")[0]) { | |
| return "cities-fill highlighted" | |
| } | |
| else { | |
| return "cities-fill"; | |
| } | |
| }) | |
| .attr("fill", fillColor) | |
| .attr("d", path); | |
| svg.append("text") | |
| .attr("class","observed-label") | |
| .text(highlightedCity.split(",")[0]) | |
| .attr("dx",15) | |
| .attr("dy",25) | |
| } | |
| var keySvg = d3.select("#key").append("svg") | |
| .attr("class", "key") | |
| .attr("width", 1800) | |
| .attr("height", 80); | |
| var x = d3.scale.linear() | |
| .domain([0, 1]) | |
| .range([0, 1210]); | |
| var xAxis = d3.svg.axis() | |
| .scale(x) | |
| .orient("bottom") | |
| .tickSize(13) | |
| .tickValues(colorScale.domain()) | |
| .tickFormat(function(d) { return d >= 0.02 ? parseInt(d*100) : null; }); | |
| keySvg.selectAll("rect") | |
| .data(colorScale.range().map(function(d, i) { | |
| return { | |
| x0: i ? x(colorScale.domain()[i - 1]) : x.range()[0], | |
| x1: i < colorScale.domain().length ? x(colorScale.domain()[i]) : x.range()[1], | |
| z: d | |
| }; | |
| })) | |
| .enter().append("rect") | |
| .attr("height", 8) | |
| .attr("x", function(d) { return d.x0; }) | |
| .attr("width", function(d) { return d.x1 - d.x0; }) | |
| .style("fill", function(d) { return d.z; }); | |
| keySvg.call(xAxis); | |
| keySvg.append("text") | |
| .attr("class","title") | |
| .attr("dy", "60") | |
| .attr("dx", "0") | |
| .text("Percentage of People who say they are in a Stated Region who were seen in the Observed Region.") | |
| } | |
| </script> | |
| </head> | |
| <body> | |
| <div class="page"> | |
| <ul id="cities"> | |
| <li id="santa-monica" class="region"></li> | |
| <li id="los-angeles" class="region"></li> | |
| <div id="key"></div> | |
| </ul> | |
| </div> | |
| <script> | |
| geoStatJoinChart({ | |
| width: 300, | |
| height: 300, | |
| latLong: [-118.2428,34.00], | |
| scale: 18000, | |
| geoDataUrl: "./los-angeles-cities.json", | |
| statDataUrl: "./los-angeles-stats.csv" | |
| }, d3, topojson, _, queue); | |
| </script> | |
| </body> | |
| </html> | |
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