Book Image

HTML5 Graphing and Data Visualization Cookbook

By : Ben Fhala
Book Image

HTML5 Graphing and Data Visualization Cookbook

By: Ben Fhala

Overview of this book

The HTML5 canvas tag makes creating any plot shape easy, all you have to do then is fill it with exciting visualizations written in JavaScript or using other visualization tools. "HTML5 Graphing and Data Visualization Cookbook" is the perfect break into the world of Canvas, charts, and graphs in HTML5 and JavaScript. In this book we will go through a journey of getting to know the technology by creating and planning data-driven visualizations. This cookbook is organized in a linear, progressive way so it can be read from start to finish, as well as be used as a resource for specific tasks.This book travels through the steps involved in creating a fully interactive and animated visualization in HTML5 and JavaScript. You will start from very simple "hello world"ù samples and quickly dive deeper into the world of graphs and charts in HTML5. Followed by learning how canvas works and carrying out a group of tasks geared at taking what we learned and implementing it in a variety of chart types. With each chapter the content becomes more complex and our creations become more engaging and interactive.Our goal is that by the end of this book you will have a strong foundation; knowing when to create a chart on your own from scratch and when it would be a good idea to depend on other APIs.We finish our book in our last two chapters exploring Google maps and integrating everything we learnt into a full project.
Table of Contents (17 chapters)
HTML5 Graphing and Data Visualization Cookbook
About the Author
About the Reviewer

Creating the flying brick chart (waterfall chart)

In each recipe in this chapter we've been advancing the complexity of our code and so we are going to revisit the bar chart and modernize it to fit our evolving charting platform. After we complete this mini task, we will be ready to create our first waterfall chart breaking away from the standard charts into more creative avenues.

The waterfall chart is a very useful chart to outline trends, such as monthly total changes (positive and negative) while outlining the total value of the big picture. This type of chart helps to outline total assets of a company while showing if they made profits or losses throughout the month. This type of chart is ideal for data that shifts between positive/negative values.

Getting ready

We will be taking advantage of the interface we created in the earlier recipes and as such we will be integrating the creation of bars into our library of updated functions. To do that, we will need to dig out our old createBars...