PICT


PICT

Infobox file format
name = PICT
icon =
extension = .pict, .pct, .pic
mime = image/x-pict
type code = PICT
uniform type = com.apple.pict
owner = Apple Computer
genre = graphics
container for =
contained by =
extended from =
extended to =
standard =

PICT is a graphics file format introduced on the original Apple Macintosh computer as its standard metafile format. It allows the interchange of graphics (both bitmapped and vector), and some limited text support, between Mac applications, and was the native graphics format of QuickDraw.

The original version, PICT 1, was designed to be as compact as possible while describing vector graphics. To this end, it featured single byte opcodes, many of which embodied operations such as "do the previous operation again". As such it was quite memory efficient, but not very expandable. With the introduction of the Macintosh II and Color QuickDraw, PICT was revised to version 2. This version featured 16-bit opcodes and numerous changes which enhanced its utility. PICT 1 opcodes were supported as a subset for backward compatibility.

Within a Mac application, any sequence of drawing operations could be simply recorded/encoded to the PICT format by opening a "Picture", then closing it after issuing the required commands. By saving the resulting byte stream as a resource, a "PICT resource" resulted, which could be loaded and played back at any time. The same stream could be saved to a data file on disk (with 512 bytes of unused header space added) as a PICT file.

With the change to Mac OS X, PICT was dropped in favour of Portable Document Format (PDF) as the native metafile format, though PICT support is retained by many applications as it is so widely supported on the Mac.

Links

* [http://developer.apple.com/documentation/mac/QuickDraw/QuickDraw-458.html Information on developer.apple.com]
* [http://www.fileformat.info/format/macpict/egff.htm Description on fileformat.info]


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Look at other dictionaries:

  • PICT — Extension .pict, .pct Type MIME image/x pict Développé par Apple Computer Type de format Image …   Wikipédia en Français

  • PICT —   [Abk. für Picture, dt. Bild], ein von Apple für Macintosh Computer entwickeltes Format für Grafikdateien. Ursprünglich war es Vektorgrafiken vorbehalten, später wurde es so erweitert, dass es auch Bitmap Grafiken codieren konnte. Auf Macintosh… …   Universal-Lexikon

  • PICT — (als Dateiendung wird auch pct benutzt) ist ein vorwiegend internes Grafikformat (metafile) der Apple Betriebssysteme bis Mac OS 9. Es gehört zur Bildschirmbeschreibungssprache QuickDraw. Es kann Pixel , Vektor und Textinformation enthalten.… …   Deutsch Wikipedia

  • Pict. — Pict., bei Tiernamen Abkürzung für François Jules Pictet (s. d. 3) …   Meyers Großes Konversations-Lexikon

  • pict — v. picto . Trimis de LauraGellner, 13.09.2007. Sursa: DN …   Dicționar Român

  • Pict — an ancient people of Great Britain, late 14c., from L.L. Picti (late 3c., probably a nickname given them by Roman soldiers), usually taken as derived from picti painted, but probably ultimately from the Celtic name of the tribe, perhaps Pehta,… …   Etymology dictionary

  • Pict — ► NOUN ▪ a member of an ancient people inhabiting northern Scotland in Roman times. ORIGIN Latin Picti, perhaps from pingere to paint or tattoo …   English terms dictionary

  • Pict — [pikt] n. [LME Pictes, pl. < LL Picti (lit. ? painted people) > OE Peohtas] a member of an ancient people of Great Britain that was driven into Scotland by the Britons and the Romans …   English World dictionary

  • pict — de·pict; pict; pict·ish; …   English syllables

  • Pict — Picts Picts, n. pl.; sing. {Pict}. [L. Picti; cf. AS. Peohtas.] (Ethnol.) A race of people of uncertain origin, who inhabited Scotland in early times. [1913 Webster] …   The Collaborative International Dictionary of English


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