Public Comment Invited on OpenGIS Web Coverage Service Extensions
Linde, A.E.
ael13 at leicester.ac.uk
Tue Jul 1 01:55:43 PDT 2008
>From Robin Cover's XML newsletter:
Public Comment Invited on OpenGIS Web Coverage Service Extensions
Staff, Open Geospatial Consortium Announcement
The Open Geospatial Consortium, Inc. (OGC) membership approved a 30-day
public comment period for a revision to the OpenGIS Web Coverage Service
(WCS) Interface Standard. The revision includes two extensions to WCS:
the WCS 1.1 Transaction Extension and the Web Coverage Processing
Service Processing (WCPS) Extension. The WCS Interface Standard
specifies an application programming interface (API) for requesting
coverage data, such as imagery, from one or more distributed sources.
A WCS provides access to potentially detailed and rich sets of
geospatial information, in forms that are useful for client-side
rendering and input into scientific models and other clients. A WCS
provides access to potentially detailed and rich sets of geospatial
information, in forms that are useful for client-side rendering,
multi-valued coverages, and input into scientific models and other
clients. The WCS may be compared to the OGC Web Map Service (WMS) and
the Web Feature Service (WFS); like them it allows clients to choose
portions of a server's information holdings based on spatial constraints
and other criteria. The WCS 1.1 Transaction Extension defines how WCS
clients can request that a WCS server import one or more new coverages
into that server, update existing coverages, and/or delete existing
coverages. The WCPS Extension adds a raster expression language to
WCS which allows analysis and processing of multi-dimensional grid
coverage data over the World Wide Web. Resulting coverages can be
transmitted directly or made available for download by URLs communicated
to the client.
http://xml.coverpages.org/OGC-WCS-Extensions.html
See also Geography Markup Language (GML): http://xml.coverpages.org/geographyML.html
t.
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