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us-congressional-districts-2018.html
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<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>2018 US Congressional Districts Tilegrams</title>
<meta name = "viewport" content = "initial-scale=1.0, maximum-scale=1.0, width=device-width">
<meta name="description" content="Tilegrams helps you create beautiful, statistically-accurate maps scaled proportionally to a dataset. This open-source tool was created through a collaboration between Pitch Interactive and Google News Lab." />
<!-- Open Graph data -->
<meta property="og:title" content="Tilegrams" />
<meta property="og:type" content="website" />
<meta property="og:url" content="https://pitchinteractiveinc.github.io/tilegrams/us-congressional-districts-2018.html" />
<meta property="og:image" content="http://pitchinteractive.com/latest/wp-content/uploads/2016/09/tilegrams-photo-1400-soft1.jpg" />
<meta property="og:description" content="Tilegrams helps you create beautiful, statistically-accurate maps scaled proportionally to a dataset. This open-source tool was created through a collaboration between Pitch Interactive and Google News Lab." />
<link rel="stylesheet" href="https://cdn.rawgit.com/Chalarangelo/mini.css/v3.0.0/dist/mini-default.min.css">
<script src="https://unpkg.com/d3@5.4.0/dist/d3.min.js"></script>
<script src="https://unpkg.com/topojson"></script>
<style>
.state {
float: left;
border: 1px solid #ccc;
padding: 0.8em 1em 0.2em 1em;
}
a {
text-decoration: underline;
}
svg {
cursor: pointer;
}
.header {
background-color: #1a1a1a;
padding: 0.5em 1em 0.3em;
}
.states {
margin-top: 1em;
}
p {
}
.svgLink {
display: inline-block;
padding-left: 1em;
}
.quickDL {
position: absolute;
right: 1em;
top: 1em;
}
.wrapper {
position: relative;
padding: 1em;
}
.cf:before,
.cf:after {
content: " "; /* 1 */
display: table; /* 2 */
}
.cf:after {
clear: both;
}
select {
margin: 0;
}
.descr {
padding-right: 300px;
}
.link, .svgLink {
font-size: 12px;
}
</style>
</head>
<body>
<div class='header'>
<a href='./'><img src='./logo.png' alt='Tilegrams by Pitch Interactive' /></a>
</div>
<div class='wrapper'>
<div class='descr'>
Tilegrams currently offers a tilegram map of the United States 2018 Congressional districts. These might be useful if you are only looking to visualize one state of the Union rather than the entire map.
</div>
<div class='quickDL'>
Quick Download: <select class='stateList'></select>
<a class='topo' target='_blank' rel='noopener noreferrer'>Topojson</a>
<a class='svg'>SVG</a>
</div>
<div class='states cf'></div>
</div>
<script>
var inputDirectory = './tilegrams/us-individual-states-congressional-districts/';
function fipsColor(fips) {
const scaleTo = 56
let number = parseInt(fips, 10) % scaleTo
if (isNaN(number)) {
number = (
((fips.charCodeAt(fips.length - 1) || 0) + ((fips.charCodeAt(fips.length - 2) || 0) * 10))
) % scaleTo
}
const scalar = number / scaleTo
return `hsl(${360 - ((scalar * 180.0) + 180.0)}, 87%, 70%)`
}
var states = ['ak', 'al', 'ar', 'az', 'ca', 'co', 'ct', 'de', 'fl', 'ga',
'hi', 'ia', 'id', 'il', 'in', 'ks', 'ky', 'la', 'ma', 'md', 'me', 'mi',
'mn', 'mo', 'ms', 'mt', 'nc', 'nd', 'ne', 'nh', 'nj', 'nm', 'nv', 'ny',
'oh', 'ok', 'or', 'pa', 'ri', 'sc', 'sd', 'tn', 'tx', 'ut', 'va', 'vt',
'wa', 'wi', 'wv', 'wy'];
var fipsToState = {
"01": {
"name_short": "AL",
"name": "ALABAMA"
},
"02": {
"name_short": "AK",
"name": "ALASKA"
},
"04": {
"name_short": "AZ",
"name": "ARIZONA"
},
"05": {
"name_short": "AR",
"name": "ARKANSAS"
},
"06": {
"name_short": "CA",
"name": "CALIFORNIA"
},
"08": {
"name_short": "CO",
"name": "COLORADO"
},
"09": {
"name_short": "CT",
"name": "CONNECTICUT"
},
"10": {
"name_short": "DE",
"name": "DELAWARE"
},
"11": {
"name_short": "DC",
"name": "DISTRICT OF COLUMBIA"
},
"12": {
"name_short": "FL",
"name": "FLORIDA"
},
"13": {
"name_short": "GA",
"name": "GEORGIA"
},
"15": {
"name_short": "HI",
"name": "HAWAII"
},
"16": {
"name_short": "ID",
"name": "IDAHO"
},
"17": {
"name_short": "IL",
"name": "ILLINOIS"
},
"18": {
"name_short": "IN",
"name": "INDIANA"
},
"19": {
"name_short": "IA",
"name": "IOWA"
},
"20": {
"name_short": "KS",
"name": "KANSAS"
},
"21": {
"name_short": "KY",
"name": "KENTUCKY"
},
"22": {
"name_short": "LA",
"name": "LOUISIANA"
},
"23": {
"name_short": "ME",
"name": "MAINE"
},
"24": {
"name_short": "MD",
"name": "MARYLAND"
},
"25": {
"name_short": "MA",
"name": "MASSACHUSETTS"
},
"26": {
"name_short": "MI",
"name": "MICHIGAN"
},
"27": {
"name_short": "MN",
"name": "MINNESOTA"
},
"28": {
"name_short": "MS",
"name": "MISSISSIPPI"
},
"29": {
"name_short": "MO",
"name": "MISSOURI"
},
"30": {
"name_short": "MT",
"name": "MONTANA"
},
"31": {
"name_short": "NE",
"name": "NEBRASKA"
},
"32": {
"name_short": "NV",
"name": "NEVADA"
},
"33": {
"name_short": "NH",
"name": "NEW HAMPSHIRE"
},
"34": {
"name_short": "NJ",
"name": "NEW JERSEY"
},
"35": {
"name_short": "NM",
"name": "NEW MEXICO"
},
"36": {
"name_short": "NY",
"name": "NEW YORK"
},
"37": {
"name_short": "NC",
"name": "NORTH CAROLINA"
},
"38": {
"name_short": "ND",
"name": "NORTH DAKOTA"
},
"39": {
"name_short": "OH",
"name": "OHIO"
},
"40": {
"name_short": "OK",
"name": "OKLAHOMA"
},
"41": {
"name_short": "OR",
"name": "OREGON"
},
"42": {
"name_short": "PA",
"name": "PENNSYLVANIA"
},
"44": {
"name_short": "RI",
"name": "RHODE ISLAND"
},
"45": {
"name_short": "SC",
"name": "SOUTH CAROLINA"
},
"46": {
"name_short": "SD",
"name": "SOUTH DAKOTA"
},
"47": {
"name_short": "TN",
"name": "TENNESSEE"
},
"48": {
"name_short": "TX",
"name": "TEXAS"
},
"49": {
"name_short": "UT",
"name": "UTAH"
},
"50": {
"name_short": "VT",
"name": "VERMONT"
},
"51": {
"name_short": "VA",
"name": "VIRGINIA"
},
"53": {
"name_short": "WA",
"name": "WASHINGTON"
},
"54": {
"name_short": "WV",
"name": "WEST VIRGINIA"
},
"55": {
"name_short": "WI",
"name": "WISCONSIN"
},
"56": {
"name_short": "WY",
"name": "WYOMING"
}
}
function titleCase(str) {
str = str.toLowerCase().split(' ');
for (var i = 0; i < str.length; i++) {
str[i] = str[i].charAt(0).toUpperCase() + str[i].slice(1);
}
return str.join(' ');
}
var counts = [
{ fips: 1, count: 7 },
{ fips: 2, count: 1 },
{ fips: 4, count: 9 },
{ fips: 5, count: 4 },
{ fips: 6, count: 53 },
{ fips: 8, count: 7 },
{ fips: 9, count: 5 },
{ fips: 10, count: 1 },
{ fips: 12, count: 27 },
{ fips: 13, count: 14 },
{ fips: 15, count: 2 },
{ fips: 16, count: 2 },
{ fips: 17, count: 18 },
{ fips: 18, count: 9 },
{ fips: 19, count: 4 },
{ fips: 20, count: 4 },
{ fips: 21, count: 6 },
{ fips: 22, count: 6 },
{ fips: 23, count: 2 },
{ fips: 24, count: 8 },
{ fips: 25, count: 9 },
{ fips: 26, count: 14 },
{ fips: 27, count: 8 },
{ fips: 28, count: 4 },
{ fips: 29, count: 8 },
{ fips: 30, count: 1 },
{ fips: 31, count: 3 },
{ fips: 32, count: 4 },
{ fips: 33, count: 2 },
{ fips: 34, count: 12 },
{ fips: 35, count: 3 },
{ fips: 36, count: 27 },
{ fips: 37, count: 13 },
{ fips: 38, count: 1 },
{ fips: 39, count: 16 },
{ fips: 40, count: 5 },
{ fips: 41, count: 5 },
{ fips: 42, count: 18 },
{ fips: 44, count: 2 },
{ fips: 45, count: 7 },
{ fips: 46, count: 1 },
{ fips: 47, count: 9 },
{ fips: 48, count: 36 },
{ fips: 49, count: 4 },
{ fips: 50, count: 1 },
{ fips: 51, count: 11 },
{ fips: 53, count: 10 },
{ fips: 54, count: 3 },
{ fips: 55, count: 8 },
{ fips: 56, count: 1 },
]
d3.select('select').selectAll('option').data(states)
.enter()
.append('option').text(state => state.toUpperCase())
d3.select('select').on('change', () => {
quickDownload(d3.event.target.value);
})
var container = d3.select('.states')
var statesGroup = container.selectAll('div.state').data(states)
.enter().append('div').attr('class',(state) => 'state ' + state)
const identity = (d) => [d]
statesGroup.selectAll('.name').data(identity)
.enter().append('div').attr('class', 'name').text((label) => label.toUpperCase())
statesGroup.selectAll('.viz').data(identity)
.enter().append('div').attr('class', 'viz')
.on('click', (state) => window.open(inputDirectory + state + '.json'))
statesGroup.selectAll('.link').data(identity)
.enter().append('a').attr('class', 'link')
.text((label) => ' Topojson')
.attr('href', (state) => inputDirectory + state + '.json')
.attr('target', '_blank')
.attr('rel', 'noopener noreferrer')
statesGroup.selectAll('.svgLink').data(identity)
.enter().append('a').attr('class', 'svgLink')
.text((label) => 'SVG')
.attr('href', '#')
states.forEach((state, stateIndex) => {
d3.json(inputDirectory + state + '.json')
.then((data) => {
var tiles = topojson.feature(data, data.objects.tiles)
var transform = d3.geoTransform({
point: function(x, y) {
this.stream.point(x, -y)
}
})
var width = 200
var height = 200
var path = d3.geoPath().projection(transform)
var svg = statesGroup.select('.state.'+ state +' .viz').append('svg')
.attr('width', width)
.attr('height', height)
var g = svg.append('g')
.attr('transform', 'translate(0,' + height + ')')
let fips = -1;
let congressCount = -1;
let fullName = state
Object.keys(fipsToState).forEach(selectedFips => {
const selectedState = fipsToState[selectedFips];
if (selectedState.name_short === state.toUpperCase()) {
fips = selectedFips;
fullName = selectedState.name;
counts.forEach(selectedCount => {
if (+selectedCount.fips === +fips) {
congressCount = selectedCount.count
}
})
}
})
var runningX = 0
var runningY = 0
var pathCount = 0
g.selectAll('.tiles')
.data(tiles.features)
.enter().append('path')
.attr('d', (feature) => {
var d = path(feature)
var numbers = d.split(/M|Z|L/)
numbers.forEach(number => {
var parts = number.split(',')
if (number === '') {
return;
}
runningX += parseFloat(parts[0])
runningY += parseFloat(parts[1])
pathCount ++;
})
return d;
})
.attr('fill', fipsColor(stateIndex))
.attr('stroke', 'black')
const avgX = runningX / pathCount;
const avgY = runningY / pathCount;
const scale = 0.42
const offsetX = width / 2 - (avgX * scale)
const offsetY = height / 2 - (avgY / 5.5 / scale)
g.attr('transform', ' translate(' + offsetX + ',' + offsetY + ') scale(' + scale + ')')
statesGroup.select('.state.' + state + ' .name')
.html('<b style="font-size: 14px">'+titleCase(fullName) + '</b> <span style="font-size: 12px">(' + state.toUpperCase() + ') - ' + congressCount + ' seat' + (congressCount === 1 ? '' : 's')+"</span>")
var serializer = new XMLSerializer()
var source = serializer.serializeToString(svg.node())
if(!source.match(/^<svg[^>]+xmlns="http\:\/\/www\.w3\.org\/2000\/svg"/)){
source = source.replace(/^<svg/, '<svg xmlns="http://www.w3.org/2000/svg"');
}
if(!source.match(/^<svg[^>]+"http\:\/\/www\.w3\.org\/1999\/xlink"/)){
source = source.replace(/^<svg/, '<svg xmlns:xlink="http://www.w3.org/1999/xlink"');
}
source = '<?xml version="1.0" standalone="no"?>\r\n' + source;
var url = "data:image/svg+xml;charset=utf-8,"+encodeURIComponent(source);
statesGroup.select('.state.' + state + ' .svgLink').attr('href', url)
.attr('download', state+'.svg')
quickDownload('AK')
})
})
function quickDownload(stateName) {
const topo = d3.select('.state.'+stateName.toLowerCase() + ' .link').attr('href')
const svg = d3.select('.state.'+stateName.toLowerCase() + ' .svgLink').attr('href')
d3.select('.quickDL .topo').attr('href', topo)
d3.select('.quickDL .svg').attr('href', svg)
.attr('download', stateName.toLowerCase()+'.svg')
}
</script>
</body>
</html>