Search Results for "curves"

Bill Bither likes the PNG format for graphics. In the start of his article, he lays out some of the nifty features that separate it from GIF and TIFF file formats. But there's more. "However, perhaps the best thing a PNG has to offer is what's called the alpha channel. An alpha channel is one byte of extra data per pixel (or palette entry for 8-bit images) that represents the transparency level of a pixel. A PNG image with alpha is capable of 256 levels of transparency. What does all this mean? For one thing, you can antialias text and images so

A quantum leap in Web graphics is happening right now.A new technology defined by the W3C called SVG (Scalable Vector Graphics) is bringing rich, compelling, interactive, high-resolution graphics to the Web. This technology is particularly attractive to GIS developers and users. Today, most mapping systems employ two approaches when delivering interactive maps on the web.The first approach is the familiar Java applet.The second approach involves generating map images on the server and delivering them to the user in either GIF or JPEG image

Perhaps the most important concept to grasp when first studying SVG is its scalability. Graphics aren't limited by fixed pixels. Like vector graphics, you can make scalable graphics larger or smaller without distorting them. This is very important for designing across resolutions. Scalable graphics adjust to the available screen resolution. This alone makes SVG attractive to Web designers, as it solves one of the most frustrating issues we face: creating designs that are as interoperable, yet as visually rich, as possible. SVG elements are based on

Introduction For years, companies, industry groups, and government organizations have used Computer Graphics Metafiles (CGMs) for storing and exchanging 2D graphics. CGM is a format defined by the International standard ISO/IEC 8632:1992 for digitally describing vector, raster, and hybrid (raster and vector) graphic pictures very compactly. It has proven to be a very good format for the technical illustrations in electronic documentation, geophysical data visualization, and other demanding 2-dimensional graphics presentation applications. About