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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
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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

Demonstrating acceleration

Here is a simple recipe demonstrating the physics principle of acceleration. The output looks like this:

Demonstrating acceleration

How to do it…

The recipe is as follows:

The HTML code:

<html>
<head>
<title>Demonstration of Acceleration</title>
<script src="Acceleration.js"></script>
</head>
<body onload="init();">
<canvas id="MyCanvasArea" width="600" height="200" style="border:2px solid blue;" >
   your browser does not support canvas
</canvas>
<h1>Demonstration of Acceleration</h1>
</body>
</html>

The JavaScript code:

var x =  0;
var y;
var xEnd=600;
var goRight=true;
var can;
var ctx;
var acceleration=0.006;
var time=1;
function animate() {

    reqAnimFrame = window.mozRequestAnimationFrame    ||
                window.webkitRequestAnimationFrame ||
                window.msRequestAnimationFrame     ||
                window.oRequestAnimationFrame...
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