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Tgif (program)
Tgif (pronounced t-g-i-f) is an Xlib-based interactive 2-D drawing tool (using vector graphics) under X11 on Linux and most UNIX platforms (including Mac OS X and cygwin on Windows). It was developed since 1990 and is free software released under the QPL license. Quirks Because Tgif was developed long before a standard way for drawing programs to work, one might find it unfamiliar to use in a number of ways: *Although Tgif mention point sizes, it uses a unit that is 1/128 of an inch for point sizes. *While there is an option to display font sizes in points, the sizes are still subject to rounding to the nearest 1/128". *Unlike modern drawing programs, Tgif uses spline curves instead of Bézier curves. *Also unlike modern drawing programs, Tgif does not allow the user to select a colour from a color wheel or through controls that allow the user to adjust colour values. Instead, Tgif provides a list with a short list of colours. If the user wishes to use a colour that is not in t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
C (programming Language)
C (''pronounced like the letter c'') is a General-purpose language, general-purpose computer programming language. It was created in the 1970s by Dennis Ritchie, and remains very widely used and influential. By design, C's features cleanly reflect the capabilities of the targeted CPUs. It has found lasting use in operating systems, device drivers, protocol stacks, though decreasingly for application software. C is commonly used on computer architectures that range from the largest supercomputers to the smallest microcontrollers and embedded systems. A successor to the programming language B (programming language), B, C was originally developed at Bell Labs by Ritchie between 1972 and 1973 to construct utilities running on Unix. It was applied to re-implementing the kernel of the Unix operating system. During the 1980s, C gradually gained popularity. It has become one of the measuring programming language popularity, most widely used programming languages, with C compilers avail ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bézier Curve
A Bézier curve ( ) is a parametric curve used in computer graphics and related fields. A set of discrete "control points" defines a smooth, continuous curve by means of a formula. Usually the curve is intended to approximate a real-world shape that otherwise has no mathematical representation or whose representation is unknown or too complicated. The Bézier curve is named after French engineer Pierre Bézier (1910–1999), who used it in the 1960s for designing curves for the bodywork of Renault cars. Other uses include the design of computer fonts and animation. Bézier curves can be combined to form a Bézier spline, or generalized to higher dimensions to form Bézier surfaces. The Bézier triangle is a special case of the latter. In vector graphics, Bézier curves are used to model smooth curves that can be scaled indefinitely. "Paths", as they are commonly referred to in image manipulation programs, are combinations of linked Bézier curves. Paths are not bound by the limi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Courier (typeface)
Courier is a monospaced slab serif typeface. The typeface was designed by Howard "Bud" Kettler (1919–1999). Initially created for IBM's typewriters, it has been adapted for use as a computer font, and versions of it are installed on most desktop computers. History IBM did not trademark the name Courier, so the typeface design concept and its name are now public domain. According to some sources, a later version for IBM's Selectric typewriters was developed with input from Adrian Frutiger, although Paul Shaw writes that this is a confusion with Frutiger's adaptation of his Univers typeface for the Selectric system. Sources differ on whether the design was published in 1955 or 1956. As a monospaced font, in the 1990s Courier found renewed use in the electronic world in situations where columns of characters must be consistently aligned, for instance, in coding. It has also become an industry standard for all screenplays to be written in 12-point Courier or a close variant. Tw ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Helvetica
Helvetica (originally Neue Haas Grotesk) is a widely used sans-serif typeface developed in 1957 by Swiss typeface designer Max Miedinger and Eduard Hoffmann. Helvetica is a neo-grotesque design, one influenced by the famous 19th century (1890s) typeface Akzidenz-Grotesk and other German and Swiss designs. Its use became a hallmark of the International Typographic Style that emerged from the work of Swiss designers in the 1950s and '60s, becoming one of the most popular typefaces of the mid-20th century. Over the years, a wide range of variants have been released in different weights, widths, and sizes, as well as matching designs for a range of non-Latin alphabets. Notable features of Helvetica as originally designed include a high x-height, the termination of strokes on horizontal or vertical lines and an unusually tight spacing between letters, which combine to give it a dense, solid appearance. Developed by the ''Haas'sche Schriftgiesserei'' (Haas Type Foundry) of Münchenst ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Times Roman
Times New Roman is a serif typeface. It was commissioned by the British newspaper ''The Times'' in 1931 and conceived by Stanley Morison, the artistic adviser to the British branch of the printing equipment company Monotype Imaging, Monotype, in collaboration with Victor Lardent, a lettering artist in ''The Times's'' advertising department. It has become one of the most popular typefaces of all time and is installed on most desktop computers. Asked to advise on a redesign, Morison recommended that ''The Times'' change their text typeface from a spindly nineteenth-century face to a more robust, solid design, returning to traditions of printing from the eighteenth century and before. This matched a common trend in printing tastes of the period. Morison proposed an older Monotype typeface named Plantin (typeface), Plantin as a basis for the design, and Times New Roman mostly matches Plantin's dimensions. The main change was that the contrast between strokes was enhanced to give a cr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Batch Mode
Computerized batch processing is a method of running software programs called jobs in batches automatically. While users are required to submit the jobs, no other interaction by the user is required to process the batch. Batches may automatically be run at scheduled times as well as being run contingent on the availability of computer resources. History The term "batch processing" originates in the traditional classification of methods of production as job production (one-off production), batch production (production of a "batch" of multiple items at once, one stage at a time), and flow production (mass production, all stages in process at once). Early history Early computers were capable of running only one program at a time. Each user had sole control of the machine for a scheduled period of time. They would arrive at the computer with program and data, often on punched paper cards and magnetic or paper tape, and would load their program, run and debug it, and carry off their ou ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
PostScript
PostScript (PS) is a page description language in the electronic publishing and desktop publishing realm. It is a dynamically typed, concatenative programming language. It was created at Adobe Systems by John Warnock, Charles Geschke, Doug Brotz, Ed Taft and Bill Paxton from 1982 to 1984. History The concepts of the PostScript language were seeded in 1976 by John Gaffney at Evans & Sutherland, a computer graphics company. At that time Gaffney and John Warnock were developing an interpreter for a large three-dimensional graphics database of New York Harbor. Concurrently, researchers at Xerox PARC had developed the first laser printer and had recognized the need for a standard means of defining page images. In 1975-76 Bob Sproull and William Newman developed the Press format, which was eventually used in the Xerox Star system to drive laser printers. But Press, a data format rather than a language, lacked flexibility, and PARC mounted the Interpress effort to create a succ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Plain Text
In computing, plain text is a loose term for data (e.g. file contents) that represent only characters of readable material but not its graphical representation nor other objects (floating-point numbers, images, etc.). It may also include a limited number of "whitespace" characters that affect simple arrangement of text, such as spaces, line breaks, or tabulation characters (although tab characters can "mean" many different things, so are hardly "plain"). Plain text is different from formatted text, where style information is included; from structured text, where structural parts of the document such as paragraphs, sections, and the like are identified; and from binary files in which some portions must be interpreted as binary objects (encoded integers, real numbers, images, etc.). The term is sometimes used quite loosely, to mean files that contain ''only'' "readable" content (or just files with nothing that the speaker doesn't prefer). For example, that could exclude any indic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Prolog
Prolog is a logic programming language associated with artificial intelligence and computational linguistics. Prolog has its roots in first-order logic, a formal logic, and unlike many other programming languages, Prolog is intended primarily as a declarative programming language: the program logic is expressed in terms of relations, represented as facts and rules. A computation is initiated by running a ''query'' over these relations. The language was developed and implemented in Marseille, France, in 1972 by Alain Colmerauer with Philippe Roussel, based on Robert Kowalski's procedural interpretation of Horn clauses at University of Edinburgh. Prolog was one of the first logic programming languages and remains the most popular such language today, with several free and commercial implementations available. The language has been used for theorem proving, expert systems, term rewriting, type systems, and automated planning, as well as its original intended field of use, nat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Unicode
Unicode, formally The Unicode Standard,The formal version reference is is an information technology Technical standard, standard for the consistent character encoding, encoding, representation, and handling of Character (computing), text expressed in most of the world's writing systems. The standard, which is maintained by the Unicode Consortium, defines as of the current version (15.0) 149,186 characters covering 161 modern and historic script (Unicode), scripts, as well as symbols, emoji (including in colors), and non-visual control and formatting codes. Unicode's success at unifying character sets has led to its widespread and predominant use in the internationalization and localization of computer software. The standard has been implemented in many recent technologies, including modern operating systems, XML, and most modern programming languages. The Unicode character repertoire is synchronized with Universal Coded Character Set, ISO/IEC 10646, each being code-for-code id ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dingbat
In typography, a dingbat (sometimes more formally known as a printer's ornament or printer's character) is an ornament, specifically, a glyph used in typesetting, often employed to create box frames, (similar to box-drawing characters) or as a dinkus (section divider). Some of the dingbat symbols have been used as signature marks, used in bookbinding to order sections. In the computer industry, a Dingbat font was a computer font that has symbols and shapes that reused the code points designated for alphabetical or numeric characters. This practice was necessitated by the limited number of code points available in 20th century operating systems. Most modern fonts are based on Unicode, which has unique code points for dingbat glyphs. Examples Examples of characters included in Unicode (ITC Zapf Dingbats series 100 and others): Dingbats Unicode block Unicode provides code points for many commonly used dingbats, as listed below. Prior to widespread adoption of Unicode i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Symbol (typeface)
Symbol is one of the four standard fonts available on all PostScript-based printers, starting with Apple's original LaserWriter (1985). It contains a complete unaccented Greek alphabet (upper and lower case) and a selection of commonly used mathematical symbols. Insofar as it fits into any standard classification, it is a serif font designed in the style of Times New Roman. Due to its non-standard character set, lack of diacritical characters, and type design inappropriate for continuous text, Symbol cannot easily be used for setting Greek language text, though it has been used for that purpose in the absence of proper Greek fonts. Its primary purpose is to typeset mathematical expressions. There was also an earlier ''Symbol'' designed in 1933 by Carl Albert Fahrenwaldt for Schriftguss Type Foundry. It was a font of decorative initials based on his roman font '' Minister''. Encoding The font was created by Adobe and has its own character encoding, with the Greek letters arrang ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
