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(function() {
var transform = function(data) {
// Set up an object and an array to use
var religion_data = { "Unknown": 0 };
var religion_array = [];
// For each legislator, increment the key associated with their religion
for (var i = 0; i < data.length; i++) {
var d = data[i];
// Make sure they have a religion listed
if (d.bio.religion) {
// If the key already exists, increment it
if (religion_data[d.bio.religion]) {
religion_data[d.bio.religion]++;
}
// Otherwise, initialize a new key as 1
else {
religion_data[d.bio.religion] = 1;
}
}
// If they don't have a religion in their bio, we'll increment "Unknown"
else {
religion_data["Unknown"]++;
}
}
// Now convert our object to an array for use in the pie chart
for (var e in religion_data) {
religion_array.push({
name: e,
count: religion_data[e]
});
}
return religion_array;
};
var width = 900;
var barHeight = 25;
var margin = 215;
d3.json("/assets/data/legislators-current.json", function(data) {
var filtered = transform(data.legislators).filter(function(d) {
return d.name !== "Unknown";
}).sort(function(a, b) {
if (a.count < b.count) return 1;
if (a.count > b.count) return -1;
return 0;
});
var container = d3.select("div#d3religion_v0")
.append("svg")
.attr("width", width)
.attr("height", barHeight * filtered.length);
var x = d3.scale.linear()
.domain([0, d3.max(filtered.map(function(d) { return d.count; }))])
.range([0, width - margin]);
// Add the arc segments to our visualization
var bar = container.selectAll("g")
.data(filtered)
.enter()
.append("g")
.attr("transform", function(d, i) { return "translate(0, " + i * barHeight + ")"; });
bar.append("rect")
.attr("width", function(d) { return x(d.count); })
.attr("height", barHeight - 1)
.attr("transform", function(d, i) { return "translate(" + (width - margin - x(d.count)) + ", 0)"})
.style("fill", "steelblue");
bar.append("text")
.attr("x", width - margin + 5)
.attr("y", barHeight / 2)
.attr("dy", ".35em")
.style("font-size", "15px")
.style("font-family", "open_sans")
.text(function(d) { return d.name; });
bar.append("text")
.attr("x", function(d) { return width - margin - x(d.count) + 5; })
.attr("y", barHeight / 2)
.attr("dy", ".35em")
.style("font-size", "15px")
.style("font-family", "open_sans")
.style("fill", "white")
.text(function(d) { return d.count; });
});
})();
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