Book Image

D3.js By Example

By : Michael Heydt
Book Image

D3.js By Example

By: Michael Heydt

Overview of this book

<p>This book will take you through all the concepts of D3.js starting with the most basic ones and progressively building on them in each chapter to expand your knowledge of D3.js.</p> <p>Starting with obtaining D3.js and creating simple data bindings to non-graphical HTML elements, you will then master the creation of graphical elements from data. You’ll discover how to combine those elements into simple visualizations such as bar, line, and scatter charts, as well as more elaborate visualizations such as network diagrams, Sankey diagrams, maps, and choreopleths.</p> <p>Using practical examples provided, you will quickly get to grips with the features of D3.js and use this learning to create your own spectacular data visualizations with D3.js.</p>
Table of Contents (20 chapters)
D3.js By Example
Credits
About the Author
About the Reviewers
www.PacktPub.com
Preface
5
Using Data and Scales
Index

Adding a detail view and interactivity


The next example adds a details directive to the page and also interactivity such that when a bar is clicked, the details directive will display the appropriate data for the selected bar.

To achieve this interactivity, the bar graph directive is modified so that it produces an action that can be monitored by other parts of the AngularJS application. This action will be to set a selectedItem property on the model, which other controllers or directives can watch for changes and then take action.

The web page

The web page for this example is contained in 03_with_detail.html. The content included differs slightly, in that we will include a new implementation of our <bars-view> directive in directives/bars_with_click.js and the controller in controllers/enhanced_controller.js and a reference to a new directive representing the detail view in directives/detail.js. Take a look at the following:

<script src="app.js"></script>
<script src="directives...