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Canvas Cookbook

You're reading from   Canvas Cookbook Over 80 simple but creative and structured recipes to explore the capabilities of HTML5 Canvas

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Product type Paperback
Published in May 2019
Publisher
ISBN-13 9781785284892
Length 254 pages
Edition 1st Edition
Languages
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Concepts
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Toc

Table of Contents (11) Chapters Close

Preface 1. Paths and Text FREE CHAPTER 2. Shapes and Composites 3. Animation 4. Images and Videos 5. Interactivity through Events 6. Creating Graphs and Charts 7. 3D Modeling 8. Game Development 9. Interoperability and Deployment Index

Animating text


It gives immense pleasure when you see your name on a screen. And it looks much better when animated. After learning this recipe, try your name.

You have seen the animation of a shape. The new recipe shows the animation of some text. The output is shown here:

How to do it…

This recipe is very similar to the code shown in the first recipe.

The HTML code:

<html>
<head>
<title>Animated Text</title>
<script src="TextAnim.js"></script>
</head>
<body onload="init();">
<canvas id="MyCanvasArea" width="400" height="400" style="border:2px solid blue;" >
   your browser does not support canvas
</canvas>
<h1>An Animated Text</h1>
</body>
</html>

The JavaScript code:

var can;
var ctx;
var alpha=0.0;
var goUp=true;

function animate() {
  reqAnimFrame = window.mozRequestAnimationFrame    ||
                window.webkitRequestAnimationFrame ||
                window.msRequestAnimationFrame     ||
            ...
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