While browsing the web, you may have come across graphical files with an “SVG” extension. What is special about these files and how can you view them? We’ll explain. What Is an SVG File? In the context of computer graphics, SVG stands for “Scalable Vector Graphics.” An SVG file is a computer file that uses the SVG standard, defined by the World Wide Web Consortium , to display an image. Typical image formats—such as JPG, PNG, and GIF—utilize raster graphics, which means that they display an image by storing a grid of pixels, called a bitmap. Each pixel’s color and location are stored in the file. If you scale a raster image larger than intended, the image becomes jagged and blurry. In contrast, SVG images use vector graphics to define an image. In a vector graphics image, the image is stored mathematically as a series of instructions that tell a viewing program how to “draw” the image on your screen. Since the drawing can take place at any size, SVG files are … [Read more...] about What Is an SVG File, and How Do I Open One?
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There’s a good chance you’ll see a “COVID-19 Exposure Notifications Are Available” pop-up on your iPhone sometime soon—if you haven’t already seen it. Apple and Google launched this feature last year, so why are you being prompted now? Some Local Governments Are Slower Than Others If you’re wondering why you’re seeing this message now, it’s because the contact-tracing feature is dependent on apps from your local health authority that take advantage of it. In the US, this means your state government generally has to roll out its own contact-tracing app. Not all state governments have done this yet. For example, California rolled out its contact-tracing app, CA Notify , in December 2020. Oregon plans to roll out its contact-tracing app sometime before April  —“hopefully,” according to a government representative. Other states may not even plan to release apps that take advantage of this. You will see this notification when your local health authority rolls out its … [Read more...] about Why Your iPhone Says “COVID-19 Exposure Notifications Are Available”