7. Testing | Learning D3.js Mapping

Sign In Start Free Trial

Book Overview & Buying
Table Of Contents

Learning D3.js Mapping

By : Newton, Oscar Villarreal

4.3 (7)

Learning D3.js Mapping

4.3 (7)

By: Newton, Oscar Villarreal

Overview of this book

If you are interested in creating maps for the web GIS data, this book is for you. Familiarity with D3.js will be helpful but is not necessary.

Preface

Preface

What this book covers

What you need for this book

Who this book is for

Conventions

Reader feedback

Customer support

Free Chapter

1. Gather Your Cartographer's Toolbox

1. Gather Your Cartographer's Toolbox

Quick bootstrap

Step-by-step bootstrap

Optimizing geographic data files with TopoJSON

Using the web browser as a development tool

Summary

2. Creating Images from Simple Text

2. Creating Images from Simple Text

Introduction – general knowledge

Positioning elements

Line

Rectangle

Circle

Polygon

Path

Transform

Grouping

Text

Summary

3. Producing Graphics from Data – the Foundations of D3

3. Producing Graphics from Data – the Foundations of D3

Creating basic SVG elements

Enter

Update

Exit

AJAX

Summary

4. Creating a Map

4. Creating a Map

Foundation – creating your basic map

Experiment 1 – adjusting the bounding box

Experiment 2 – creating choropleths

Experiment 3 – adding click events to our visualization

Experiment 4 – using updates and transitions to enhance our visualization

Experiment 5 – adding points of interest

Experiment 6 – adding visualizations as a point of interest

Summary

5. Click-click Boom! Applying Interactivity to Your Map

5. Click-click Boom! Applying Interactivity to Your Map

Events and how they occur

Experiment 1 – hover events

Experiment 2 – tooltips with visualizations

Experiment 3 – panning and zooming

Experiment 4 – orthographic projections

Experiment 5 – rotating orthographic projections

Experiment 6 – dragging orthographic projections

Summary

6. Finding and Working with Geographic Data

6. Finding and Working with Geographic Data

GeoData file types

Summary

7. Testing

7. Testing

Code organization and reusable assets

Project structure

Writing testable code

Unit testing

Creating resilient visualization code

Summary

Index

Index

Summary

In this chapter, we described the techniques to help test your D3 code base and to keep it healthy over the lifespan of your project. We also went step-by-step through a bootstrap project to help you get started with these examples, and we took a look at a methodology for structuring your work.

Our recommendations are based on many years of experience and many projects delivered using D3. We strongly recommend that you follow good software patterns and focus on tests; this will allow you to perfect your craft. Quality is in your hands now. With this, we say goodbye, and thank you for reading!

CONTINUE READING

83

Tech Concepts

36

Programming languages

73

Tech Tools

Unlimited access to the largest independent learning library in tech of over 8,000 expert-authored tech books and videos.

Innovative learning tools, including AI book assistants, code context explainers, and text-to-speech.

50+ new titles added per month and exclusive early access to books as they are being written.

Learning D3.js Mapping

Search

Your notes and bookmarks