Book Image

Learn D3.js

By : Helder da Rocha
2 (1)
Book Image

Learn D3.js

2 (1)
By: Helder da Rocha

Overview of this book

This book is a practical hands-on introduction to D3 (Data-driven Documents): the most popular open-source JavaScript library for creating interactive web-based data visualizations. Based entirely on open web standards, D3 provides an integrated collection of tools for efficiently binding data to graphical elements. If you have basic knowledge of HTML, CSS and JavaScript you can use D3.js to create beautiful interactive web-based data visualizations. D3 is not a charting library. It doesn’t contain any pre-defined chart types, but can be used to create whatever visual representations of data you can imagine. The goal of this book is to introduce D3 and provide a learning path so that you obtain a solid understanding of its fundamental concepts, learn to use most of its modules and functions, and gain enough experience to create your own D3 visualizations. You will learn how to create bar, line, pie and scatter charts, trees, dendograms, treemaps, circle packs, chord/ribbon diagrams, sankey diagrams, animated network diagrams, and maps using different geographical projections. Fundamental concepts are explained in each chapter and then applied to a larger example in step-by-step tutorials, complete with full code, from hundreds of examples you can download and run. This book covers D3 version 5 and is based on ES2015 JavaScript.
Table of Contents (13 chapters)

Geographical information systems

A Geographical Information System, or GIS, is a system that stores, presents, and allows manipulation of spatial or geographic data. GIS applications are built on databases and contain a rich graphical user interface that manipulates multiple layers of geographic data in vector and raster formats.

GIS existed way before the Web was born. The first desktop GIS product was MapInfo Pro, released in 1986. One of the most popular products is ArcGIS, by Esri, the company that created the popular Shapefile format (.SHP), which is a de facto standard in the field. Free and open-source solutions include PostGIS (based on the Postgres database and used by many GIS applications), GRASS GIS and QGIS, which runs in Mac, Windows and Linux. They all support the Shapefile format as well as open web standards like GeoJSON and TopoJSON. GIS applications are also...