 |  | Copyright © 1992, 1997 International Organization for Standardization. All rights reserved. This electronic document is for use during development and review of International Standards. Official printed copies of International Standards can be purchased from the ISO and the national standards organization of your country. | ||
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Objects are defined by applications, not by HyTime. An object can be represented by any element type, including one with a hierarchical structure.
NOTE 288 It is expected that useful sets of object types will be defined by other standards or by industry groups for public use.
An object could also be a finite coordinate space, or a complete HyTime document. It can be any form of unformatted or formatted character text (including "WYSIWYG"), a structure represented by an SGML element or document, or any other data in any data content notation.
NOTE 289 Some object types that can be useful in multimedia applications are:
Still picture: e.g., JPEG image, CAD graphic, fax page,
page described by a page description language Digital audio: e.g., MPEG audio, CD, DAT, Direct-to-disk Musical instrument control signal sequence Digital video: e.g., MPEG video Program or script isolated from system: e.g., Java Choreographic notation: e.g., Labanotation Compiled decision logic: e.g., C++ Interpreted decision logic: e.g., interactive hypermedia
scripting languages Slide projector control signals Lighting device control signals Recording studio control signals Analog or digital device control signals Handwriting: order and pressure of pen strokes
An object could be expressed using parsable character data, an unparseable notation (likely for audio and video), a parsable notation (for example, SPDL for still pictures), or an SGML structure containing a mixture of content types (compound and composite objects). Unparseable notation objects are defined as separate entities, but all entities can be included in a single SDIF data stream for interchange.
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| Copyright © 1992, 1997 International Organization for Standardization. All rights reserved. This electronic document is for use during development and review of International Standards. Official printed copies of International Standards can be purchased from the ISO and the national standards organization of your country. | |
HTML generated from the original SGML source using a DSSSL style specification and the SGML output back-end of the JADE DSSSL engine.