Book Image

Data Visualization with D3 4.x Cookbook - Second Edition

By : Nick Zhu
Book Image

Data Visualization with D3 4.x Cookbook - Second Edition

By: Nick Zhu

Overview of this book

Master D3.js and create amazing visualizations with the Data Visualization with D3 4.x Cookbook. Written by professional data engineer Nick Zhu, this D3.js cookbook features over 65 recipes. ? Solve real-world visualization problems using D3.js practical recipes ? Understand D3 fundamentals ? Includes illustrations, ready-to-go code samples and pre-built chart recipes
Table of Contents (21 chapters)
Data Visualization with D3 4.x Cookbook - Second Edition
Credits
About the Author
About the Reviewer
www.PacktPub.com
Customer Feedback
Preface

Using an area generator


Using D3 line generator, we can technically generate an outline of any shape; however, even with a different curve support, directly drawing an area using line (as in an area chart) is not an easy task. This is why D3 also provides a separate shape generator function specifically designed for drawing area.

Getting ready

Open your local copy of the following file in your web browser:

https://github.com/NickQiZhu/d3-cookbook-v2/blob/master/src/chapter7/area.html

How to do it...

In this recipe, we will add a filled area to a pseudo line chart, effectively turning it into an

area chart:

<script type="text/javascript"> 
    var width = 500, 
        height = 500, 
        margin = 30, 
        duration = 500, 
        x = d3.scaleLinear() // <-A 
            .domain([0, 10]) 
            .range([margin, width - margin]), 
        y = d3.scaleLinear() 
            .domain([0, 10]) 
            .range([height - margin...