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Last active March 30, 2020 18:56
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Map of India's Parliamentary Constitiencies, 2014
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README.md
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index.html
<!DOCTYPE html>
<html>
<head>
<meta http-equiv="content-type" content="text/html; charset=UTF-8">
<script src="http://d3js.org/d3.v3.min.js"></script>
<script src="http://d3js.org/topojson.v1.js"></script>
<script src="http://d3js.org/queue.v1.min.js"></script>
<script src='http://ajax.googleapis.com/ajax/libs/jquery/1.7.2/jquery.min.js'></script>
<style type="text/css">
body {
font-family: Arial, sans-serif;
}
.pc {
fill: #bdbdbd;
stroke: #fff;
stroke-width: 0.5px;
}
.state {
fill: none;
stroke: #636363;
stroke-width: 1px;
stroke-linejoin: round;
}
#container {
margin:2%;
padding:20px;
border:2px solid #d0d0d0;
border-radius: 5px;
}
div.tooltip {
position: absolute;
text-align: center;
padding: 0.5em;
font-size: 10px;
color: #222;
background: #FFF;
border-radius: 2px;
pointer-events: none;
box-shadow: 0px 0px 2px 0px #a6a6a6;
text-shadow:#f5f5f5 0 1px 0;
}
.legend .legend-title {
text-align: left;
margin-bottom: 5px;
font-weight: bold;
font-size: 90%;
}
.legend .legend-scale ul {
margin: 0;
margin-bottom: 5px;
padding: 0;
float: left;
list-style: none;
}
.legend .legend-scale ul li {
font-size: 80%;
list-style: none;
margin-left: 0;
line-height: 18px;
margin-bottom: 2px;
}
.legend ul.legend-labels li span {
display: block;
float: left;
height: 20px;
width: 20px;
margin-right: 5px;
margin-left: 0;
}
.legend .legend-source {
font-size: 70%;
color: #999;
clear: both;
}
</style>
</head>
<body onload="sizeChange()">
<div id="container">
<h1>Parliamentary Constituencies, 2014</h1>
<div class='legend'>
<div class='legend-title'>Reservation Status</div>
<div class='legend-scale'>
</div>
<div class='legend-source'>Source: <a href="http://projects.datameet.org/maps/">Data{Meet}</a></div>
</div>
</div>
<script type="text/javascript">
d3.select(window).on("resize", sizeChange);
//Set d3 scale
var color_domain = ['GEN','SC','ST'];
var legend_labels = ['GEN','SC','ST'];
var color = d3.scale.threshold()
.domain(color_domain)
.range(["", "#b2df8a", "#1f78b4","#a6cee3"]);
//Set tooltip
var div = d3.select("body").append("div")
.attr("class", "tooltip")
.style("opacity", 0);
//Set d3 projection, path and svg
var projection = d3.geo.mercator()
.center([78, 27])
.scale(1200);
var path = d3.geo.path()
.projection(projection);
var svg = d3.select("#container")
.append("svg")
.attr("width", "100%")
.attr("height","100%")
.append("g");
//Wait for data files to download before drawing
queue()
.defer(d3.json, "india_pc_2014_simplified.topojson")
.defer(d3.json, "india_state_2014_simplified.topojson")
.defer(d3.csv, "results.csv") //sample data
.await(ready);
function ready(error, pc, state, data) {
//Set up for visualizing sample data
var pairResultWithId = {};
var pairNameWithId = {};
data.forEach(function(d) {
pairResultWithId[d.ST_CODE + d.PC_CODE] = d.Res;
pairNameWithId[d.ST_CODE + d.PC_CODE] = d.PC_NAME;
});
//Drawing pc boundaries
var pc_geojson = topojson.feature(pc, pc.objects.india_pc_2014);
svg.selectAll(".pc")
.data(pc_geojson.features)
.enter().append("path")
.attr("class", "pc")
.attr("d", path)
.style ( "fill" , function (d) {
var result = pairResultWithId[d.properties.ST_CODE + d.properties.PC_CODE];
if (result!='') {return color(result);}
})
.style("opacity", 0.8)
.on("mouseover", function(d) {
d3.select(this).transition().duration(300).style("opacity", 1);
div.transition().duration(300)
.style("opacity", 1)
div.text(pairNameWithId[d.properties.ST_CODE + d.properties.PC_CODE] + " : " + pairResultWithId[d.properties.ST_CODE + d.properties.PC_CODE])
.style("left", (d3.event.pageX) + "px")
.style("top", (d3.event.pageY -30) + "px");
})
.on("mouseout", function() {
d3.select(this)
.transition().duration(300)
.style("opacity", 0.8);
div.transition().duration(300)
.style("opacity", 0);
})
;
//Drawing state boundaries
var state_geojson = topojson.feature(state, state.objects.india_state_2014);
svg.selectAll(".state")
.data(state_geojson.features)
.enter().append("path")
.attr("class", "state")
.attr("d", path);
}
//Set up for drawing html legend elements
var legend = d3.select('.legend-scale')
.append('ul')
.attr('class', 'legend-labels');
var keys = legend.selectAll('li')
.data(color_domain);
keys.enter().append('li')
.text(function(d, i){ return legend_labels[i];})
.append('span')
.style('background', function(d) { return color(d); })
;
//Function called when window is resized
function sizeChange() {
d3.select("g").attr("transform", "scale(" + $("#container").width()/1000 + ")");
$("svg").height($("#container").width()*0.75);
}
</script>
</body>
</html>
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@prakash741
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prakash741 commented May 23, 2016

jellyfish

@viranch
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viranch commented Mar 3, 2017 •
edited
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Hi @mukhtyar, would you also mind improving the world map in https://github.com/markmarkoh/datamaps/ with "legal" India boundaries? I think the world topojson file is https://github.com/markmarkoh/datamaps/blob/master/src/js/data/world.topo.json. Any help will be appreciated.

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