Now that we have a good handle on transformations with the HTML5 canvas API, we're now in a position to further explore the canvas state stack and see what it can do for us with respect to transformations. In Chapter 2, Shape Drawing and Composites, we covered the state stack, a very powerful yet sometimes overlooked property of the canvas API. Although the canvas state stack can help with managing styling, it's most common usage is to save and restore transformation states. In this recipe, we'll perform multiple transformations while saving the canvas state between each transformation, and then draw a sequence of rectangles after restoring each state to see the effects.
HTML5 Canvas Cookbook
By :
HTML5 Canvas Cookbook
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Overview of this book
The HTML5 canvas is revolutionizing graphics and visualizations on the Web. Powered by JavaScript, the HTML5 Canvas API enables web developers to create visualizations and animations right in the browser without Flash. Although the HTML5 Canvas is quickly becoming the standard for online graphics and interactivity, many developers fail to exercise all of the features that this powerful technology has to offer.The HTML5 Canvas Cookbook begins by covering the basics of the HTML5 Canvas API and then progresses by providing advanced techniques for handling features not directly supported by the API such as animation and canvas interactivity. It winds up by providing detailed templates for a few of the most common HTML5 canvas applications—data visualization, game development, and 3D modeling. It will acquaint you with interesting topics such as fractals, animation, physics, color models, and matrix mathematics.
By the end of this book, you will have a solid understanding of the HTML5 Canvas API and a toolbox of techniques for creating any type of HTML5 Canvas application, limited only by the extent of your imagination.
Table of Contents (19 chapters)
HTML5 Canvas Cookbook
Credits
About the Author
About the Reviewers
www.PacktPub.com
Preface
Free Chapter
Getting Started withPaths and Text
Shape Drawing and Composites
Working with Images and Videos
Mastering Transformations
Bringing the Canvas to Life with Animation
Interacting with the Canvas: Attaching Event Listeners to Shapes and Regions
Creating Graphs and Charts
Saving the World with Game Development
Introducing WebGL
Detecting Canvas Support
Canvas Security
Additional Topics
Index
Customer Reviews