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
About the Author
About the Reviewer
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Projecting the US map

In this recipe we are going to start with projecting the US map using D3 GEO API, while also getting familiar with a few different JSON data formats for describing geographic data. Let's first take a look at how geographic data are typically presented and consumed in JavaScript.


The first standard JavaScript geographic data format we are going to touch upon is called GeoJSON. GeoJSON format was originally written and maintained by an Internet working group of developers. Later it was standardized by the Internet Engineering Task Force (IETF) with RFC 7946 and published in August 2016.

GeoJSON is a format for encoding a variety of geographic data structures. GeoJSON supports the following geometry types: Point, LineString, Polygon, MultiPoint, MultiLineString, and MultiPolygon. Geometric objects with additional properties are Feature objects. Sets of features are contained by FeatureCollection objects.

GeoJSON format is a very...