Ensiklopedia Dunia

Technopedia Center

Faculty of Engineering and Computer Science
S1 Informatics S1 Information Systems S1 Information Technology S1 Computer Engineering S1 Electrical Engineering S1 Civil Engineering

faculty of Economics and Business
S1 Management S1 Accountancy

Faculty of Letters and Educational Sciences
S1 English literature S1 English language education S1 Mathematics education S1 Sports Education

GeoRSS - Wikipedia

From Wikipedia, the free encyclopedia

GeoRSS
Filename extension	.rss, .xml
Internet media type	`application/rss+xml` (Registration Being Prepared)^[1]
Extended from	XML

GeoRSS is a specification for encoding location as part of a Web feed. (Web feeds are used to describe feeds ("channels") of content, such as news articles, Audio blogs, video blogs and text blog entries. These web feeds are rendered by programs such as aggregators and web browsers.) The name "GeoRSS" is derived from RSS, the most known Web feed and syndication format.

In GeoRSS, location content consists of geographical points, lines, and polygons of interest and related feature descriptions. GeoRSS feeds are designed to be consumed by geographic software such as map generators. By building these encodings on a common information model, the GeoRSS collaboration is promoting interoperability and "upwards-compatibility" across encodings.

At this point, the GeoRSS collaboration has completed work on two primary encodings that are called GeoRSS Geography Markup Language (GML) and GeoRSS Simple. GeoRSS-Simple is a very lightweight format that supports basic geometries (point, line, box, polygon) and covers the typical use cases when encoding locations. GeoRSS GML is a formal Open Geospatial Consortium (OGC) GML Application Profile, and supports a greater range of features than GeoRSS Simple, notably coordinate reference systems other than WGS84 latitude/longitude. There is also a W3C GeoRSS serialization, which is older and partly deprecated but still the most widely used.

GeoRSS can be used to extend both RSS 1.0 and 2.0, as well as Atom, the IETF's latest standard for feeds.

Examples

Here's a GeoRSS Simple example using Atom.

 <?xml version="2.0" encoding="utf-8"?>
 <feed xmlns="http://www.w3.org/2005/Atom" 
       xmlns:georss="http://www.georss.org/georss">
   <title>Earthquakes</title>
   <subtitle>International earthquake observation labs</subtitle>
   <link href="http://example.org/"/>
   <updated>2005-12-13T18:30:02Z</updated>
   <author>
      <name>Dr. Thaddeus Remor</name>
      <email>tremor@quakelab.edu</email>
   </author>
   <id>urn:uuid:60a76c80-d399-11d9-b93C-0003939e0af6</id>
   <entry>
      <title>M 3.2, Mona Passage</title>
      <link href="http://example.org/2005/09/09/atom01"/>
      <id>urn:uuid:1225c695-cfb8-4ebb-aaaa-80da344efa6a</id>
      <updated>2005-08-17T07:02:32Z</updated>
      <summary>We just had a big one.</summary>
      <georss:point>45.256 -71.92</georss:point>
   </entry>
 </feed>

Here is a schema fragment for a GeoRSS GML encoding for RSS 2.0

  <?xml version="1.0" encoding="UTF-8"?>
  <rss version="2.0" 
       xmlns:georss="http://www.georss.org/georss" 
       xmlns:gml="http://www.opengis.net/gml">
    <channel>
    <link>http://maps.google.com</link>
    <title>Cambridge Neighborhoods</title>
    <description>One guy's view of Cambridge, Massachusetts</description>
    <item>
      <guid isPermaLink="true">00000111c36421c1321d3</guid>
      <pubDate>Thu, 05 Apr 2007 20:16:31 +0000</pubDate>
      <title>Central Square</title>
      <description>The heart and soul of the "new" Cambridge. Depending on where you 
               stand, you can feel like you're in the 1970s or 2020.</description>
      <author>rajrsingh</author>
      <georss:where>
        <gml:Polygon>
          <gml:exterior>
            <gml:LinearRing>
              <gml:posList>
                +71.106216 42.366661
                +71.105576 42.367104
                +71.104378 42.367134
                +71.103729 42.366249
                +71.098793 42.363331
                +71.101028 42.362541
                +71.106865 42.366123
                +71.106216 42.366661
              </gml:posList>
            </gml:LinearRing>
          </gml:exterior>
        </gml:Polygon>
      </georss:where>
    </item>
   </channel>
 </rss>

Here is example of W3C geo GeoRSS

 <?xml version="1.0"?>
 <?xml-stylesheet href="/eqcenter/catalogs/rssxsl.php?feed=eqs7day-M5.xml" type="text/xsl" 
                  media="screen"?>
 <rss version="2.0" 
      xmlns:geo="http://www.w3.org/2003/01/geo/wgs84_pos#" 
      xmlns:dc="http://purl.org/dc/elements/1.1/">
  <channel>
     <title>USGS M5+ Earthquakes</title>
     <description>Real-time, worldwide earthquake list for the past 7 days</description>
     <link>https://earthquake.usgs.gov/eqcenter/</link>
     <dc:publisher>U.S. Geological Survey</dc:publisher>
     <pubDate>Thu, 27 Dec 2007 23:56:15 PST</pubDate>
     <item>
       <pubDate>Fri, 28 Dec 2007 05:24:17 GMT</pubDate>
       <title>M 5.3, northern Sumatra, Indonesia</title>
       <description>December 28, 2007 05:24:17 GMT</description>
       <link>https://earthquake.usgs.gov/eqcenter/recenteqsww/Quakes/us2007llai.php</link>
       <geo:lat>5.5319</geo:lat>
       <geo:long>95.8972</geo:long>
     </item>
   </channel>
 </rss>

References

^ "The application/rss+xml Media Type". Network Working Group. May 22, 2006. Retrieved 2007-08-16.

External links

Georss.org (archived 2020-09-09), web site for GeoRSS specifications (describes all 3 encodings) and examples
OGC Whitepaper (pdf), Open Geospatial Consortium: An Introduction to GeoRSS.

v t e Standards of the Open Geospatial Consortium (OGC)
CSW GeoPackage GeoRSS GeoSPARQL GML KML O&M OGC Reference Model SensorML SOS SFA SLD SRID TransducerML TMS WaterML WCS WFS WMS WMTS WPS WRS

Web syndication

History: Blogging; Podcasting; Vlogging; Web syndication technology

Types

Technology

General	BitTorrent Feed URI scheme
Features	Linkback Permalink Ping Pingback Reblogging Refback Rollback Trackback
Mechanism	Thread Geotagging RSS enclosure Synchronization
Memetics	Atom feed Data feed Photofeed Product feed RDF feed Web feed
RSS	GeoRSS MRSS RSS TV
Social	Inter-process communication Mashup Referencing RSS editor RSS tracking Streaming media
Standard	OPML RSS Advisory Board Usenet World Wide Web XBEL XOXO

Form

Media

Alternative media	Carnivals Fiction Journalism Citizen Database Online diary Search engines Sideblog Software Web directory
Micromedia	Aggregation News Poll Review Search Video Atom AtomPub Broadcatching Hashtag NewsML 1 G2 Social communication Social software Web Slice
Related	Blogosphere Escribitionist Glossary of blogging Pay per click Posting style Slashdot effect Spam in blogs Uses of podcasting

Categories:

Hidden categories:

Examples

See also

References

External links