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150 lines
7.4 KiB
150 lines
7.4 KiB
<?xml version="1.0" encoding="iso-8859-1" ?>
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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
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"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
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<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
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<head>
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<meta http-equiv="Content-Type" content="text/html" />
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<title>WebCGM 1.0 Second Release</title>
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<meta name="RCS-Id"
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content="$Id: Overview.html,v 1.2 2001/12/18 19:47:18 dom Exp $"
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/>
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<link rel="stylesheet" type="text/css" media="screen"
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href="http://www.w3.org/StyleSheets/TR/W3C-REC.css" />
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</head>
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<body bgcolor="#ffffff">
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<div class="head">
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<p align="right"><a href="http://www.w3.org/"><img align="left" alt="W3C"
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border="0" height="48" src="http://www.w3.org/Icons/w3c_home" width="72"
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/>
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</a></p>
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<br clear="all" />
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<h1 style="text-align: center; margin-top: 1em">WebCGM 1.0 Second Release</h1>
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<h2 style="text-align: center">W3C Recommendation, 17 December 2001</h2>
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<dl>
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<dt>This Version:</dt>
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<dd><a href="http://www.w3.org/TR/2001/REC-WebCGM-20011217">
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http://www.w3.org/TR/2001/REC-WebCGM-20011217</a></dd>
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<dd>
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(Also available as <a href="http://www.w3.org/TR/2001/REC-WebCGM-20011217/REC-WebCGM-20011217.zip">
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ZIP archive</a>)</dd>
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<dt>Latest Version:</dt>
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<dd><a href="http://www.w3.org/TR/REC-WebCGM">http://www.w3.org/TR/REC-WebCGM</a></dd>
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<dt>Previous Version:</dt>
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<dd><a
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href="http://www.w3.org/TR/1999/REC-WebCGM-19990121">http://www.w3.org/TR/1999/REC-WebCGM-19990121</a></dd>
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<dt><a id="Authors" name="Authors">Authors:</a></dt>
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<dd>David Cruikshank, The Boeing Company<br />
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John Gebhardt, Intercap Graphics Systems<br />
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Lofton Henderson, Inso Corporation<br />
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Roy Platon, CCLRC<br />
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Dieter Weidenbrueck, ITEDO/IsoDraw</dd>
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<dt><a id="Contributors" name="Contributors">Contributors</a></dt>
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<dd>Ty Bartosh, Jeppesen Inc.<br />
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Forrest Carpenter, System Development Inc.<br />
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Maryse Da-Ponte, Aerospatiale<br />
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Bruce Garner, Analyst/Consultant<br />
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Alan Hester, Xerox Corporation<br />
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Bob Hopgood, CCLRC<br />
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Chris Lilley, W3C<br />
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Don Larson, Larson Software Technology<br />
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Kevin O'Kane, Auto-trol Technologies<br />
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Brad Powell, Zeh Graphic Systems<br />
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Dave Rahnis, Bentley Systems<br />
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Lynne Rosenthal, NIST</dd>
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</dl>
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<p class="copyright"><a href="http://www.w3.org/Consortium/Legal/ipr-notice-20000612#Copyright"> Copyright</a> ©2001 <a
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href="http://www.w3.org/"><abbr title="World Wide Web Consortium">W3C</abbr></a><sup>®</sup> (<a href="http://www.lcs.mit.edu/"><abbr
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title="Massachusetts Institute of Technology">MIT</abbr></a>, <a href="http://www.inria.fr/"><abbr xml:lang="fr" lang="fr" title="Institut
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National de Recherche en Informatique et Automatique">INRIA</abbr></a>, <a href="http://www.keio.ac.jp/">Keio</a>), All Rights Reserved. W3C <a
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href="http://www.w3.org/Consortium/Legal/ipr-notice-20000612#Legal_Disclaimer">liability</a>, <a
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href="http://www.w3.org/Consortium/Legal/ipr-notice-20000612#W3C_Trademarks">trademark</a>, <a
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href="http://www.w3.org/Consortium/Legal/copyright-documents-19990405">document use</a> and <a
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href="http://www.w3.org/Consortium/Legal/copyright-software-19980720">software licensing</a> rules apply.<br />
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Copyright 1998-2001 <a href="http://www.cgmopen.org">CGM Open Consortium Inc.</a></p>
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</div>
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<hr />
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<h2><a id="Abstract" name="Abstract">Abstract</a></h2>
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<p>CGM (Computer Graphics Metafile) has been an ISO standard for vector and
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composite vector/raster picture definition since 1987. It has been a
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registered MIME type since 1995. CGM has a significant following in technical
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illustration, electronic documentation, geophysical data visualization,
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amongst other application areas. WebCGM is a profile for the effective
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application of CGM in Web electronic documents. WebCGM has been a joint
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effort of the CGM Open Consortium, in collaboration with W3C staff and
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supported by the European Commission Esprit project. It represents an
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important interoperability agreement amongst major users and implementors of
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CGM, and thereby unifies current diverse approaches to CGM utilization in Web
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document applications. WebCGM's clear and unambiguous conformance
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requirements will enhance interoperability of implementations, and it should
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be possible to leverage existing CGM validation tools, test suites, and the
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product certification testing services for application to <abbr>WebCGM</abbr>
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. While WebCGM is a binary file format and is not "stylable", nevertheless
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WebCGM follows published W3C requirements for a scalable graphics format
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where such are applicable. The design criteria for the graphical content of
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WebCGM aimed at a balance between graphical expressive power on the one hand,
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and simplicity and implementability on the other. A small but powerful set of
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metadata elements is standardized in WebCGM, to support the functionalities
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of: hyperlinking and document navigation; picture structuring and layering;
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and, search and query on WebCGM picture content.</p>
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<h2><a id="Status" name="Status">Status of This Document</a></h2>
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<p>This document has been reviewed by W3C Members and other interested
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parties and has been endorsed by the Director as a W3C Recommendation. It is
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a stable document and may be used as reference material or cited as a
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normative reference from another document. W3C's role in making the
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Recommendation is to draw attention to the specification and to promote its
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widespread deployment. This enhances the functionality and interoperability
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of the Web.</p>
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<p>This second release is not a new version of WebCGM (first published 21
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January 1999); it merely incorporates the changes dictated by the first
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release errata (available at <a href="http://www.w3.org/Graphics/WebCGM-19990121-errata">
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http://www.w3.org/Graphics/WebCGM-19990121-errata</a>) as a convenience to the
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readers. The errata list for this second release is available
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at <a href="http://www.w3.org/Graphics/WebCGM-20011217-errata">
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http://www.w3.org/Graphics/WebCGM-20011217-errata</a>. Please report errors in
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this specification to the <a href="mailto:info@cgmopen.org">WebCGM document editor</a>.</p>
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<p>A list of current W3C Recommendations and other technical documents can be
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found at <a href="http://www.w3.org/TR">http://www.w3.org/TR</a>.</p>
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<p>This document was produced as part of the <a
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href="http://www.w3.org/Graphics/Activity">W3C Graphics Activity</a>.</p>
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<p>The English version of this specification is the only normative version.
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There are no known translations, and none are known to be in
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progress.</p>
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<hr />
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<h2><a id="Contents" name="Contents">Contents</a></h2>
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<p><a href="REC-WebCGM-TOC.html">Detailed Table of Contents</a></p>
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<ul>
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<li><a href="REC-01-CGM-Intro.html">1. Introduction to WebCGM</a></li>
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<li><a href="REC-02-CGM-Concepts.html">2. WebCGM Concepts</a></li>
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<li><a href="REC-03-CGM-IC.html">3. WebCGM Intelligent Content</a></li>
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<li><a href="REC-04-CGM-Profile.html">4. WebCGM Profile</a></li>
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</ul>
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<p></p>
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<hr />
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<p><a href="http://validator.w3.org/check/referer"><img
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src="http://www.w3.org/Icons/valid-xhtml10"
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alt="Valid XHTML 1.0!" height="31" width="88" /></a> <a
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href="http://www.w3.org/Style/CSS/Buttons"><img alt="Made with CSS"
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border="0" width="88" height="31"
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</body>
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</html>
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