Computer Graphics Metafile (CGM) is an ISO standard, defined by ISO/IEC
8632:1999, for the interchange of 2D vector and mixed vector/raster graphics.
WebCGM is a profile of CGM, which adds Web linking and is optimized for Web
applications in technical illustration, electronic documentation, geophysical
data visualization, and similar fields. First published (1.0) in 1999, WebCGM
unifies potentially diverse approaches to CGM utilization in Web document
applications. It therefore represents a significant interoperability
agreement amongst major users and implementers of the ISO CGM standard.
The design criteria for WebCGM aim to balance graphical expressive power
on the one hand, versus simplicity and implementability on the other. A small
but powerful set of standardized metadata elements supports the
functionalities of hyperlinking and document navigation, picture structuring
and layering, and enabling search and query of WebCGM picture content.
The present version, WebCGM 2.1, refines and completes the features of the
major WebCGM 2.0 release. WebCGM 2.0 added a DOM (API) specification for
programmatic access to WebCGM objects, a specification of an XML Companion
File (XCF) architecture, and extended the graphical and intelligent content
of WebCGM 1.0.
This section describes the status of this document at the time of its
publication. Other documents may supersede this document. A list of current
W3C publications and the latest revision of this technical report can be
found in the W3C technical reports index
at http://www.w3.org/TR/.
This is a second Last Call
Working Draft of "WebCGM 2.1".
This document was developed by the WebCGM Working Group, part
of the Graphics Activity.
The Working Group expects to advance this Working Draft to Recommendation
Status.
WebCGM 2.1 is related to the previous W3C work on WebCGM 1.0 and 2.0. WebCGM 2.0 was
simultaneously published by W3C as a Recommendation and by OASIS as an OASIS
Standard. The two versions are identical in technical content, differing only
in the formatting and presentation conventions of the two organizations. It
is agreed that WebCGM 2.1 will be progressed by the same collaborative
process and will result in technically a identical Recommendation and OASIS
Standard.
This WebCGM 2.1 specification was initially based on a work by the same
name, WebCGM 2.1 an OASIS
Committee Specification. This W3C Working Draft version of the WebCGM 2.1
specification incorporates requests for changes from comments sent during the
first Last
Call Review, as agreed with the commenters (see Disposition
of Last Call comments for WebCGM 2.1) and changes following
implementation experiences from the Working Group. The Working Group wishes
to have these changes reviewed before proceeding to Candidate
Recommendation.
The W3C Membership and other interested parties are therefore invited to
review the document and send comments through 02 July 2009. For convenience,
the differences between this second Last Call Working Draft and the First Public and Last
Call Working Draft are listed in Appendix D, "Change Log",
and are highlighted in the text itself. Comments must be sent to the [email protected]
mailing list (public
archive). Use "[2nd LC Review]" in the subject line of your email.
Publication as a Working Draft does not imply endorsement by the W3C
Membership. This is a draft document and may be updated, replaced or
obsoleted by other documents at any time. It is inappropriate to cite this
document as other than work in progress.
This document was produced by a group operating under the 5 February 2004
W3C Patent Policy. W3C maintains a public list of any
patent disclosures made in connection with the deliverables of the group;
that page also includes instructions for disclosing a patent. An individual
who has actual knowledge of a patent which the individual believes contains
Essential
Claim(s) must disclose the information in accordance with section
6 of the W3C Patent Policy.
