Data Visualization with D3.js Cookbook

Chapter 4. Tipping the Scales

In this chapter we will cover:

• Using quantitative scales
• Using time scale
• Using ordinal scale
• Interpolating string
• Interpolating colors
• Interpolating compound object
• Implementing custom interpolator

Introduction

As a data visualization developer, one key task that you need to perform over and over is to map values from your data domain to visual domain, for example, mapping your most recent purchase of a fancy tablet of $453.00 to a 653px-long bar, and your last night's pub bill of $23.59 to a 34px-long bar, respectively. In a sense, this is what data visualization is all about—mapping data elements to their visual metaphor in an efficient and accurate manner. Because this is an absolutely essential task in data visualization ...