You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
191 lines
5.2 KiB
191 lines
5.2 KiB
/* ------------------------------------------------------------------------------ |
|
* |
|
* # D3.js - vertical bar chart |
|
* |
|
* Demo d3.js vertical bar chart setup with .tsv data source |
|
* |
|
* Version: 1.0 |
|
* Latest update: August 1, 2015 |
|
* |
|
* ---------------------------------------------------------------------------- */ |
|
|
|
$(function () { |
|
|
|
// Initialize chart |
|
barVertical('#d3-bar-vertical', 400); |
|
|
|
// Chart setup |
|
function barVertical(element, height) { |
|
|
|
|
|
// Basic setup |
|
// ------------------------------ |
|
|
|
// Define main variables |
|
var d3Container = d3.select(element), |
|
margin = {top: 5, right: 10, bottom: 20, left: 40}, |
|
width = d3Container.node().getBoundingClientRect().width - margin.left - margin.right, |
|
height = height - margin.top - margin.bottom - 5; |
|
|
|
|
|
|
|
// Construct scales |
|
// ------------------------------ |
|
|
|
// Horizontal |
|
var x = d3.scale.ordinal() |
|
.rangeRoundBands([0, width], .1, .5); |
|
|
|
// Vertical |
|
var y = d3.scale.linear() |
|
.range([height, 0]); |
|
|
|
// Color |
|
var color = d3.scale.category20c(); |
|
|
|
|
|
|
|
// Create axes |
|
// ------------------------------ |
|
|
|
// Horizontal |
|
var xAxis = d3.svg.axis() |
|
.scale(x) |
|
.orient("bottom"); |
|
|
|
// Vertical |
|
var yAxis = d3.svg.axis() |
|
.scale(y) |
|
.orient("left") |
|
.ticks(10, "%"); |
|
|
|
|
|
|
|
// Create chart |
|
// ------------------------------ |
|
|
|
// Add SVG element |
|
var container = d3Container.append("svg"); |
|
|
|
// Add SVG group |
|
var svg = container |
|
.attr("width", width + margin.left + margin.right) |
|
.attr("height", height + margin.top + margin.bottom) |
|
.append("g") |
|
.attr("transform", "translate(" + margin.left + "," + margin.top + ")"); |
|
|
|
|
|
|
|
// Load data |
|
// ------------------------------ |
|
|
|
d3.tsv("assets/demo_data/d3/bars/bars_basic.tsv", function(error, data) { |
|
|
|
// Pull out values |
|
data.forEach(function(d) { |
|
d.frequency = +d.frequency; |
|
}); |
|
|
|
|
|
// Set input domains |
|
// ------------------------------ |
|
|
|
// Horizontal |
|
x.domain(data.map(function(d) { return d.letter; })); |
|
|
|
// Vertical |
|
y.domain([0, d3.max(data, function(d) { return d.frequency; })]); |
|
|
|
|
|
// |
|
// Append chart elements |
|
// |
|
|
|
// Append axes |
|
// ------------------------------ |
|
|
|
// Horizontal |
|
svg.append("g") |
|
.attr("class", "d3-axis d3-axis-horizontal d3-axis-strong") |
|
.attr("transform", "translate(0," + height + ")") |
|
.call(xAxis); |
|
|
|
// Vertical |
|
var verticalAxis = svg.append("g") |
|
.attr("class", "d3-axis d3-axis-vertical d3-axis-strong") |
|
.call(yAxis); |
|
|
|
// Add text label |
|
verticalAxis.append("text") |
|
.attr("transform", "rotate(-90)") |
|
.attr("y", 10) |
|
.attr("dy", ".71em") |
|
.style("text-anchor", "end") |
|
.style("fill", "#999") |
|
.style("font-size", 12) |
|
.text("Frequency"); |
|
|
|
|
|
// Add bars |
|
svg.selectAll(".d3-bar") |
|
.data(data) |
|
.enter() |
|
.append("rect") |
|
.attr("class", "d3-bar") |
|
.attr("x", function(d) { return x(d.letter); }) |
|
.attr("width", x.rangeBand()) |
|
.attr("y", function(d) { return y(d.frequency); }) |
|
.attr("height", function(d) { return height - y(d.frequency); }) |
|
.style("fill", function(d) { return color(d.letter); }); |
|
}); |
|
|
|
|
|
|
|
// Resize chart |
|
// ------------------------------ |
|
|
|
// Call function on window resize |
|
$(window).on('resize', resize); |
|
|
|
// Call function on sidebar width change |
|
$('.sidebar-control').on('click', resize); |
|
|
|
// Resize function |
|
// |
|
// Since D3 doesn't support SVG resize by default, |
|
// we need to manually specify parts of the graph that need to |
|
// be updated on window resize |
|
function resize() { |
|
|
|
// Layout variables |
|
width = d3Container.node().getBoundingClientRect().width - margin.left - margin.right; |
|
|
|
|
|
// Layout |
|
// ------------------------- |
|
|
|
// Main svg width |
|
container.attr("width", width + margin.left + margin.right); |
|
|
|
// Width of appended group |
|
svg.attr("width", width + margin.left + margin.right); |
|
|
|
|
|
// Axes |
|
// ------------------------- |
|
|
|
// Horizontal range |
|
x.rangeRoundBands([0, width], .1, .5); |
|
|
|
// Horizontal axis |
|
svg.selectAll('.d3-axis-horizontal').call(xAxis); |
|
|
|
|
|
// Chart elements |
|
// ------------------------- |
|
|
|
// Line path |
|
svg.selectAll('.d3-bar').attr("x", function(d) { return x(d.letter); }).attr("width", x.rangeBand()); |
|
} |
|
} |
|
});
|
|
|