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Release v4.0.0 · d3/d3. Bl.ocks.org - mbostock. Simple animated bar charts using D3 and data-attributes. Collapsible Force Layout. Force Layout with Tooltips. Force-Directed Graph. Curved Links. Force Layout with Mouseover Labels. Let's Make a Bar Chart. A few days ago I started taking a closer look at Michael Bostock's D3.js.

Let's Make a Bar Chart

D3 is an amazing JavaScript library for mapping data to HTML elements or SVG nodes. I started off making some bar charts with HTML elements and then moved onto SVG nodes and transitions. Generally, to make simple charts, all you need to do is follow these steps: Select the place you want to put your chartSelect all the chart componentsApply the data to this selectionAdd a new compononent for each piece of data that wasn't appliedPosition the new componentsApply any other attributes or styles Here's an example of a bar chart and the code that will create it below: When setting an attribute, the second argument can be a literal, variable, or a function.

D3 also lets you apply transitions to selections. Transitions are simple: append a call to transition() and set the delay and/or duration with calls to delay and duration. D3 can do so much more than just displaying bar charts or line graphs. Build Your Own Graph! Tutorials · mbostock/d3 Wiki. Wiki ▸ Tutorials Please feel free to add links to your work!

Tutorials · mbostock/d3 Wiki

Introductions & Core Concepts Specific Techniques Blogs Books. Creating Animations and Transitions With D3. For the ambitious, this is a great intro to creating your own animations and transitions in d3.js.

Creating Animations and Transitions With D3

If you get in over your head, drop by the Visually Marketplace to hire one of our talented developers. In interactive visualisation, there is the word reactive. Well, maybe not literally, but close enough. The fact is that reactivity, or the propension of a visualisation to respond to user actions, can really help engage the user in a visualisation, and help them understand its results.

Both of which are usually good things. So I’ll go ahead and state that animation, if done right, can make any interactive data visualization better. How is that? When coupled with interaction, it’s a very useful way to give feedback to the user. d3 with x3dom Demo. Ring Chart. Let’s Make a Bar Chart, III. In the previous parts of this tutorial we made a basic bar chart in HTML and then in SVG; now, we’ll improve the display by rotating the chart into columns and adding axes.

Let’s Make a Bar Chart, III

We’ll also switch to a real dataset, showing the relative frequency of letters in the English language. Source: Cryptological Mathematics, Robert Lewand. #Rotating into Columns Rotating a bar chart into a column chart largely involves swapping x with y. However, a number of smaller incidental changes are also required.

When renaming the x scale to the y scale, the range becomes [height, 0] rather than [0, width]. We previously multiplied the var barHeight by the index of each data point (0, 1, 2, …) to produce fixed-height bars. Lastly, the bar labels must be positioned differently for columns rather than bars, centered just below the top of the column. #Encoding Ordinal Data Unlike quantitative values that can be compared numerically, subtracted or divided, ordinal values are compared by rank. #Preparing Margins. Basic d3.js Animated Bar Graph.

Documentation. Everything you need to know to build great looking charts using Chart.js Getting started Include Chart.js First we need to include the Chart.js library on the page.

Documentation

The library occupies a global variable of Chart. Alternatively, if you're using an AMD loader for JavaScript modules, that is also supported in the Chart.js core. // Using requirejsrequire(['path/to/Chartjs'], function(Chart){ // Use Chart.js as normal here. // Chart.noConflict restores the Chart global variable to it's previous owner // The function returns what was previously Chart, allowing you to reassign. var Chartjs = Chart.noConflict(); }); You can also grab Chart.js using bower: