What is SVG

What is SVG? What is SVG used for? Why use SVG? This article will introduce you to the relevant knowledge of SVG and let you understand the benefits of using SVG. Let’s take a look at the specific content.

What is SVG? What is the use?

SVG is an XML-based vector graphics format used to display a variety of graphics on the Web and other environments; it allows us to write scalable two-dimensional graphics and can be used via CSS or JavaScript Perform operations. [Related video tutorial recommendations: XML Tutorial]

SVG can best respond to the current web development requirements for scalability, responsiveness, interactivity, programmability, performance and accessibility .

Because SVG is vector-based, there will be no reduction or loss of fidelity when enlarging the graphic. They simply redraw to fit the larger size, which makes it perfect for multi-context scenarios such as responsive web design.

Why use SVG?

The true value of SVG is that it solves many of the toughest problems in modern web development. Let’s look at the benefits of using SVG, and what problems it solves.

1. Scalability and responsiveness

SVG uses shapes, numbers, and coordinates (rather than pixel grids) to render graphics in the browser, which makes It is resolution independent and infinitely scalable. If you think about it, the instructions for creating a circle are the same whether you use a pen or a tablet, only the proportions change.

Using SVG, we can combine different shapes, paths and text elements to create a variety of visual effects and ensure that they look crisp and clear at any size.

In contrast, raster-based formats such as GIF, JPG, and PNG have fixed dimensions, which causes them to pixelate when scaled. While various responsive imaging techniques have proven valuable for pixel graphics, they can never truly compete with SVG's infinite expansion (scaling) capabilities.

2. Programmability and interactivity

SVG is fully editable and scriptable, and we can add various animations and interactions through CSS or JavaScript into the drawing.

3. Accessibility

SVG files are text-based and can be searched and indexed. This makes them readable by screen readers, search engines, and other devices.

4. Performance

One of the most important aspects that affects Web performance is the size of the files used on the web page. SVG graphics are generally smaller files compared to raster graphics such as GIF, JPG, and PNG.

Common use cases for using SVG

There are a ton of practical use cases for SVG. Let’s explore some of the most important use cases.

1. Simple illustrations and diagrams

Any traditional drawing made with pen and pencil can be perfectly converted to SVG format.

2. Logos and icons

Logos and icons generally have the same need for clarity and sharpness, regardless of size, e.g. from buttons to billboards, they can be used SVG completion; and SVG icons are more accessible and easier to locate.

Example: Using a weather icon

#3. Animation

We can create attractive animations , and even special types of animations, including SVG line drawings. SVG can also interact with CSS animations, as well as having its own built-in SMIL animation capabilities. Example:

4. Interactivity (charts, infographics, maps)

SVG can be used to draw data and based on User operations or certain events dynamically update data, such as interactive SVG infographics and interactive SVG roadmaps.

5. Special effects

Using SVG you can achieve many real-time effects, including shape deformation or different viscosity effects

6. Construction Interfaces and Applications

SVG allows us to make challenging interfaces and combine them with HTML5, web-based applications and Internet applications (RIA).

Browser support

As we can see, SVG is almost everywhere and can be used in countless situations, and SVG Browser support is getting better.

Currently, most modern web browsers support the most important and basic features of SVG. Let's take a look at the browser support:

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