HTML offers various ways to display graphics in a document, including inline images, SVG, and HTML canvas. Inline images are the most commonly used and easiest to insert, while SVG is best for dynamic data. HTML5 allows for dynamic graphics using JavaScript and CSS, but can be complex and slow.
In HyperText Markup Language (HTML), there are several ways to display and create graphics in an HTML document. The most popular type of HTML graphics are images that are placed directly on the HTML page, called inline images, although there are other methods, such as using a scripting language or a compiled web application, that can be used to achieve the same results. For dynamically generated graphics for charts or graphs, you can use Scalable Vector Graphics (SVG). There are also some basic HTML graphics that are supported by the language spec and don’t require external files such as horizontal lines and bullets in a list. More complex HTML graphics can be achieved through the use of a scripting language, cascading style sheets (CSS), and the HTML canvas element, providing a native option for some effects that were previously only possible via external objects and plugins.
By far, inline HTML graphics are the most widely used and easiest way to insert an image into an HTML document. It basically involves creating an image in an image editor, saving it in a commonly used file format, and then specifying the name and location of the image file in your HTML document with the IMG tag. Aside from the simplicity of embedding an inline graphic in a document, the rendering engine in most web browsers can easily place the graphic in more complex page layouts without formatting artifacts. One complication that can occur with an inline image is that the size of the image may need to be scaled to fit displays that are exceptionally large or small when viewed, potentially reducing image quality.
Scalable vector graphics are a more complex style of HTML graphics. An SVG image is drawn by defining shapes, paths and line weights and is drawn on the fly as the user views the document. This makes SVG a good choice for displaying dynamic data such as tables or graphs, but makes them very impractical to use for other types of graphics, such as building photorealistic images. For simple HTML graphics and in situations where it is not feasible to load an external image file, SVG may be a viable option.
With the development of the HTML language standard version 5 (HTML5), it is possible to create dynamic HTML graphics within the basic HTML language. This is done by drawing directly onto a special surface known as a canvas in an HTML document. Using JavaScript® and CSS, this method can create animations or games that can respond to user input or adjust graphics depending on web browser settings or other data. However, creating an HTML5 graphic can be a complex process that might involve long blocks of script code that might run very slowly on some computers or devices.
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