December 2013
Beginner
122 pages
2h 43m
English
Content preview from RaphaelJS
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.
Chapter 1. Introduction: Why Raphael is Great
Raphael is a toolkit for making beautiful things on the Web. With a few lines of code and the help of a small, free JavaScript library, you can turn the browser into a living gallery of interactive artwork and visualization. This book will teach you how to bridge the gulf between the page and your imagination.
Let’s dive straight into a complete working example.
<!DOCTYPE html><html><head><title>Red dot</title></head><body><divid="container"></div><scriptsrc="http://cdnjs.cloudflare.com/ajax/libs/raphael/2.1.0/raphael-min.js"></script><script>varpaper=Raphael("container",500,300);vardot=paper.circle(250,150,100).attr({fill:"#FF0000",stroke:"#000099","stroke-width":3});</script></body></html>
Load this code into any browser—either by hand or on a site like jsFiddle that lets you experiment with code—and with any luck, you will see this:
See this code live on jsFiddle.
If you’re not impressed yet, don’t worry. You’ve actually seen something pretty neat. Let’s go over what we just did:
-
We took a bare bones HTML page and added a single
<div>element with the idcontainer. - We loaded a small JavaScript library named raphael-min.js, which clocks in at 89Kb, hosted on CloudFlare.
- We wrote two lines of JavaScript: one that initializes Raphael, and a second that gives the command to make a dot at the coordinates 250, ...
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I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.