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<!DOCTYPE html> |
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<meta charset="utf-8"> |
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<style> |
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body { background: transparent; } |
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path { stroke: #333; stroke-width: 1; } |
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path:hover { stroke-width: 3; } |
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#console { |
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font-size: 11px; |
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font-family: "Courier", "fixed-width"; |
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width: 400px; |
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height: 150px; |
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position: fixed; |
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top: 0; |
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left: 0; |
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padding: 4px; |
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overflow: auto; |
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background-color: white; |
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border: 2px solid black; |
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} |
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#console p { |
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margin-top: 1px; |
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margin-bottom: 0 |
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} |
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svg { |
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border: 5px solid red; |
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} |
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</style> |
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<body> |
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<script src="//cdnjs.cloudflare.com/ajax/libs/d3/3.5.17/d3.min.js"></script> |
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<!-- <script src="http://d3js.org/queue.v1.min.js"></script> --> |
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<script src="//d3js.org/topojson.v1.min.js"></script> |
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<div id="console"></div> |
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<svg id="zoomy-map" width="400" height="300"></svg> |
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<script> |
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d3.select('#console').append('p').text('v0.1') |
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var width = 960 |
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var height = 600 |
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var padding = 20 |
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var allData = [] |
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var color = d3.scale.threshold() |
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.domain([0.028, 0.038, 0.048, 0.058, 0.068, 0.078]) |
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.range(['#4d9221', '#a1d76a', '#e6f5d0', '#f7f7f7', '#fde0ef', '#e9a3c9', '#c51b7d']) |
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var projection = d3.geo.albers() |
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.precision(0) |
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.scale(height * 2).translate([width / 2, height / 2]) |
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var path = d3.geo.path().projection(projection) |
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var svg = d3.select('#zoomy-map') |
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//.append('svg') |
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.attr('width', width) |
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.attr('height', height) |
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d3.select('#console').append('p').text('width '+width) |
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d3.select('#console').append('p').text('height '+height) |
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/* |
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queue() |
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.defer(d3.csv, 'data.csv', function (d) { |
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return { |
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id: +(d.state + d.county), |
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state: d.state, |
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county: d.county, |
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unemployment: +d.unemployment |
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} |
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}) |
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.defer(d3.json, 'us-states.json') |
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.defer(d3.json, 'us-counties.json') |
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.awaitAll(initialize) |
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*/ |
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d3.csv('data.csv', function(error, data){ |
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d3.select('#console').append('p').text('data.csv loaded') |
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allData.push(data) |
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d3.json('us-states.json', function(error, data){ |
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d3.select('#console').append('p').text('us-states.json loaded') |
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allData.push(data) |
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d3.json('us-counties.json', function(error, data){ |
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d3.select('#console').append('p').text('us-counties.json loaded') |
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allData.push(data) |
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allData[0].forEach(function(d,i){ |
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if(i<10){ console.log('foreach d', d)} |
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allData[0][i] = { |
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'id': +(d.state + d.county), |
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'county': d.county, |
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'state': d.state, |
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'unemployment': +d.unemployment |
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} |
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}) |
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d3.select('#console').append('p').text('allData[0] length: '+allData[0].length) |
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d3.select('#console').append('p').text('allData[1] length: '+allData[1].arcs.length) |
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d3.select('#console').append('p').text('allData[2] length: '+allData[2].arcs.length) |
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console.log('======> alldata', allData) |
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initialize({},allData) |
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}) |
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}) |
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}) |
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function initialize(error, results) { |
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//if (error) { throw error } |
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d3.select('#console').append('p').text('running initialize()') |
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var data = results[0] |
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var states = topojson.feature(results[1], results[1].objects.states).features |
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var counties = topojson.feature(results[2], results[2].objects.counties).features |
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console.log('states -->', states) |
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states.forEach(function (f,i) { |
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if(i<5){ |
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//d3.select('#console').append('p').text('state data '+JSON.stringify(f)) |
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//console.log('--> f ',f, 'f.id', f.id) |
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//console.log('--> data find', data.find(function (d,i) { |
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//if(i<10){ console.log('--> find d', d)} |
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//return d.id === f.id |
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//})) |
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} |
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f.properties = data.find(function (d) { return d.id === f.id }) |
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}) |
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console.log('states after foreach ==>', states) |
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counties.forEach(function (f) { |
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f.properties = data.find(function (d) { return d.id === f.id }) || {} |
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}) |
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var statePaths = svg.selectAll('.state') |
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.data(states) |
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.enter().append('path') |
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.attr('class', 'state') |
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.attr('d', path) |
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.style('fill', function (d) { |
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//console.log(d) |
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return color(d.properties.unemployment) |
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}) |
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.on('click', function (d) { stateZoom(d.id) }) |
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function usZoom() { |
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alert("US Zoom"); |
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var t = d3.transition().duration(800) |
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projection.scale(height * 2).translate([width / 2, height / 2]) |
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statePaths.transition(t) |
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.attr('d', path) |
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.style('fill', function (d) { return color(d.properties.unemployment) }) |
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svg.selectAll('.county') |
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.data([]) |
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.exit().transition(t) |
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.attr('d', path) |
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.style('opacity', 0) |
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.remove() |
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} |
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function stateZoom(id) { |
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alert("State Zoom"); |
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var state = states.find(function (d) { return d.id === id }) |
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var stateCounties = counties.filter(function (d) { |
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return d.id > id && d.id < id + 1000 |
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}) |
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var t = d3.transition().duration(800) |
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var countyPaths = svg.selectAll('.county') |
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.data(stateCounties, function (d) { return d.id }) |
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var enterCountyPaths = countyPaths.enter().append('path') |
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.attr('class', 'county') |
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.attr('d', path) |
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.style('fill', function (d) { return color(d.properties.unemployment) }) |
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.style('opacity', 0) |
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.on('click', function () { usZoom() }) |
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projection.fitExtent( |
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[[padding, padding], [width - padding, height - padding]], |
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state |
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) |
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statePaths.transition(t) |
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.attr('d', path) |
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.style('fill', '#444') |
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enterCountyPaths.transition(t) |
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.attr('d', path) |
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.style('opacity', 1) |
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countyPaths.exit().transition(t) |
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.attr('d', path) |
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.style('opacity', 0) |
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.remove() |
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} |
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} |
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</script> |
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</body> |
