Discovering the Power of Scalable Vector Graphics (SVG) Animation

By Ronald Smith

Have you ever wondered how those beautiful graphics in magazines and newspapers are created? They are made using something called vector graphics. And guess what? You can use vector graphics on websites too! All you need is SVG, also known as Scalable Vector Graphics.

According to the experts at W3.org, SVG is a special language that uses XML to describe graphics. It’s like a secret code that tells your computer how to draw pictures. With SVG, you can create all kinds of cool stuff like shapes, images, and even text!

Believe it or not, SVG has been around since way back in 1999. But it wasn’t until 2011 that it officially became a W3C Recommendation. Even though it’s been around for a while, a lot of people still don’t know about SVG. That’s a shame because using vector graphics instead of regular images has many advantages, especially for websites.

The Benefits of Using SVG

When it comes to displaying graphics on websites, SVG has some advantages over Bitmap. Here are a few:

Resolution Independent

Bitmap or raster graphics are dependent on resolution, which means they’re made up of pixels. When you resize a bitmap image, it can look pixelated at certain zoom levels. Vector graphics, on the other hand, are resolution independent. They’re expressed using mathematical equations, which means they can be scaled at any zoom level while maintaining quality. This is especially important for high-resolution displays like Retina Displays.

Reduced HTTP Requests

SVG graphics can be embedded directly into an HTML document using the “ tag. This means the browser doesn’t have to make an additional request to serve the graphic. Not only does this simplify the code, but it also improves the loading performance of the website.

Styling and Scripting

I can embed SVG directly using the svg tag, which makes it easy to style the graphic using CSS. Just like with regular HTML, I can change object properties such as background color, opacity, borders, and more. I can also manipulate the graphic using JavaScript.

Animation and Editing

I can animate SVG objects using the animation element or JavaScript libraries like jQuery. And if I want to make edits, I can use any text code editor or graphic software like Inkscape (which is free) or Adobe Illustrator.

Smaller File Size

SVG files have a smaller size compared to Bitmap files while still offering a similar graphic presentation.

Drawing Basic Shapes with SVG

Line

When creating a line in SVG, we can use the <line> element. This special element is specifically designed to draw a straight line, which means it only requires two points: a start and an end.

Take a look at the example above. The x-coordinates for the starting point are specified as x1 and x2, while the y-coordinates for the ending point are declared as y1 and y2.

Additionally, we have two other attributes to consider: stroke and stroke-width. These control the color and width of the line’s border, respectively. Alternatively, we can define these attributes using inline styles like this:

style=”stroke-width:1; stroke:rgb(0,0,0);”

Essentially, both methods achieve the same result.

Discovering the Power of Scalable Vector Graphics (SVG) Animation

  • Check out the “Line” demo
Polyline

It’s a lot like the element, but the element lets us draw multiple lines instead of just one. Take a look at this example:

The element has an attribute called “points” that holds all the coordinates that make up the lines.

Discovering the Power of Scalable Vector Graphics (SVG) Animation

Hey there! Let me show you how to draw shapes using HTML. First up, we have the <polyline> element. This one is really cool because it allows you to draw multiple connected straight lines. If you want to see an example in action, just click on “View Demo “Polyline”” down below.

Rectangle

Now, let’s move on to drawing a rectangle. It’s super easy with HTML. All you need to do is specify the width and height, like this:

Discovering the Power of Scalable Vector Graphics (SVG) Animation

  • Check out the “Rectangle” demo

Circle

You can also make a circle using the element. Take a look at this example, where we’ll create a circle with a radius of 100, defined with the r attribute:

To define the circle’s center coordinate, we use the cx and cy attributes. In the example above, we set both the x and y coordinate to 102. If these attributes aren’t specified, the default value will be 0.

Discovering the Power of Scalable Vector Graphics (SVG) Animation

  • Check out the “Circle” Demo

Ellipse

Now let’s talk about ellipses. They’re similar to circles, but this time we have more control. We can specify the x line radius with the rx attribute and the y line radius with the ry attribute.

Discovering the Power of Scalable Vector Graphics (SVG) Animation

  • Check out the “Ellipse” Demo

Create Shapes

Did you know that you can easily create shapes using HTML? It’s true! With the <canvas> element, you can draw shapes with multiple sides, like a triangle, hexagon, or even a rectangle. Let me show you an example:

Discovering the Power of Scalable Vector Graphics (SVG) Animation

  • Check out the “Polygon” Demo

Using a Vector Graphic Editor

As you can see, creating simple objects with SVG in HTML is pretty straightforward. However, when the object becomes more complex, this approach becomes less ideal and can become overwhelming.

Thankfully, as mentioned earlier, we have the option to use a vector graphic editor like Adobe Illustrator or Inkscape. If you’re already familiar with these programs, it’s much easier to draw objects using their graphical user interface rather than manually coding the graphic in HTML.

If you’re using Inkscape, you can save your vector graphic as a plain SVG file, and then open it in a text code editor. You’ll find the SVG codes in the file. Simply copy and paste these codes into your HTML document.

Okay, folks, here’s another way you can showcase an .svg file on your website—through the magic of code! There are a few different elements you can use to get the job done. For instance, you’ve got your embed, iframe, and object. They all work their own special way, but in the end, the results are pretty much the same.

In this particular example, I’m gonna show you how to embed an .svg file using the embed element. Cool, right? I’m using this awesome Apple iPod from OpenClipArt.org as our guinea pig. Ready? Let’s dive in!

Discovering the Power of Scalable Vector Graphics (SVG) Animation

  • Check out the “iPod” Demo

The Compatibility Question

When it comes to browser compatibility, SVG enjoys strong support from all major browsers, with one glaring exception – Internet Explorer 8 and earlier versions. However, fear not! There is a handy JavaScript Library called Raphael.js that can help with this issue. To simplify matters even further, we can utilize the convenient tool, ReadySetRaphael.com, to effortlessly convert our SVG code into a format that is supported by Raphael.js. Let me show you how.

Discovering the Power of Scalable Vector Graphics (SVG) Animation

First things first, you need to download and add the Raphael.js library to your HTML document. After that, upload the .svg file to your site and copy and paste the code that is generated into the following load function:

“`javascript

window.onload = function() {

//the Raphael code goes here

}

“`

“`html

“`

That’s it! You’re all set. You can check out an example from the link below.

Now, let’s talk about SVG. It’s a great way to optimize your website for any screen resolution, including Retina displays. It’s simple to use and provides crisp and clear graphics.

If you want to learn more about SVG, we have some additional resources and discussions for you to explore:

– “An Introduction to SVG” from W3 Schools

Hey there! Thanks for taking the time to read this post. I hope you found it interesting!

So, what did you think about it? Did you learn something new? I sure hope so!

If you have any questions or if there’s anything you’d like to discuss further, please feel free to leave a comment below. I’d love to hear your thoughts and opinions!

By the way, if you enjoyed this post, why not share it with your friends? They might find it interesting too!

Thanks again for reading, and I hope to see you back here soon for more awesome content. Stay curious!