Book Image

Mastering SVG

By : Rob Larsen
Book Image

Mastering SVG

By: Rob Larsen

Overview of this book

SVG is the most powerful image format in use on the web. In addition to producing resolution-independent images for today's multi-device world, SVG allows you to create animations and visualizations to add to your sites and applications. The simplicity of cross-platform markup, mixed with familiar modern web languages, such as CSS and JavaScript, creates a winning combination for designers and developers alike. In this book, you will learn how to author an SVG document using common SVG features, such as elements and attributes, and serve SVG on the web using simple configuration tips for common web servers. You will also use SVG elements and images in HTML documents. Further, you will use SVG images for a variety of common tasks, such as manipulating SVG elements, adding animations using CSS, mastering the basic JavaScript SVG (API) using Document Object Model (DOM) methods, and interfacing SVG with common libraries and frameworks, such as React, jQuery, and Angular. You will then build an understanding of the Snap.svg and SVG.js APIs, along with the basics of D3, and take a look at how to implement interesting visualizations using the library. By the end of the book, you will have mastered creating animations with SVG.
Table of Contents (17 chapters)
Title Page

Using SVG as a content image

In this section, you'll learn about the single most basic usage of an SVG image, using it the same way you would use a JPG, PNG, or GIF, as the src of an img element. If you've done any work with HTML at all then you will know how to do this since it's just an image element, but you should start to think about all the different ways you can use SVG, and this is a big one.

Looking at the following code sample, there's nothing special at all about the img element. There's an src pointing to the SVG image, height and width to define the image's dimensions, and an alt attribute to provide a textual representation of the image for screen readers and other cases where the image may not display:

<!doctype html>
<html lang="en">
        <meta charset="utf-8">
        <title>Mastering SVG - Inserting an SVG Image into an HTML
      <img src="1-2-circles.svg" width="250" height="250" alt="an image
        showing four circles lined up diagonally across the screen">

Running the preceding code in a browser renders the following:


One thing that might be a slight problem is that not all web servers, by default, set the correct MIME type for SVG. If the MIME type is set incorrectly, some browsers will not display the SVG image correctly. As one common example, Microsoft's IIS may need a specific configuration setting changed ( to properly serve SVG images. The correct MIME type is image/svg+xml.