A Geo microformat, detected on the Wikipedia page for Great Barr, by Firefox's Operator extension. Users may add alternative mapping sources to those shown, which are included by default.

Geo is a microformat used for marking up WGS84 geographical coordinates (latitude;longitude) in (X)HTML. Although termed a "draft" specification, this is a formality, and the format is stable and in use; not least as a sub-set of the published hCalendar and hCard microformat specifications. Image File history File links No higher resolution available. ... Image File history File links No higher resolution available. ... Image File history File links No higher resolution available. ... This article may be confusing for some readers, and should be edited to enhance clarity. ... Great Barr is a large and loosely-defined area which straddles the boundaries of Birmingham, West Bromwich (Sandwell) and Walsall, West Midlands, England. ... Firefox may refer to: Firefox (novel), written by Craig Thomas, published in 1978 Firefox (film), the 1982 movie starring Clint Eastwood, based on the novel Firefox (arcade game), the laserdisc arcade game based on the movie Mozilla Firefox, a web browser The Red Fox or the Red Panda, based on... Microformats are mark-up that allow expression of semantics in an HTML (or XHTML) web page. ... The World Geodetic System defines a reference frame for the earth, for use in geodesy and navigation. ... This article is about the geographical term. ... Longitude is the east-west geographic coordinate measurement most commonly utilized in cartography and global navigation. ... It has been suggested that XHTML_Modularization be merged into this article or section. ... hCalendar is a Microformat standard for displaying a semantic XHTML representation of iCalendar-format calendar information on web pages. ... hCard is a microformat for publishing the contact details of people, organizations and venues, in (X)HTML, Atom, RSS, or arbitrary XML. hCard is a 1:1 representation of the vCard standard (RFC 2426). ...

Use of Geo allows parsing tools (for example other websites, or Firefox's Operator extension) to extract the locations, and display them using some other website or mapping tool, or to load them into a GPS device, index or aggregate them, or convert them into an alternative format. Firefox may refer to: Firefox (novel), written by Craig Thomas, published in 1978 Firefox (film), the 1982 movie starring Clint Eastwood, based on the novel Firefox (arcade game), the laserdisc arcade game based on the movie Mozilla Firefox, a web browser The Red Fox or the Red Panda, based on... Operator is an extension for the Mozilla Firefox web browser. ... For other uses, see Map (disambiguation). ... GPS redirects here. ...

Version 3 of the Firefox browser is expected to include native support for microformats^[1], including Geo. Firefox may refer to: Firefox (novel), written by Craig Thomas, published in 1978 Firefox (film), the 1982 movie starring Clint Eastwood, based on the novel Firefox (arcade game), the laserdisc arcade game based on the movie Mozilla Firefox, a web browser The Red Fox or the Red Panda, based on...

Usage

• If latitude is present, so MUST be longitude, and vice versa.
• The same number of decimal places SHOULD be used in each value, including trailing zeroes.

(Note - MUST and SHOULD are used per the IETF document RFC 2119). The Internet Engineering Task Force (IETF) develops and promotes Internet standards, cooperating closely with the W3C and ISO/IEC standard bodies; and dealing in particular with standards of the TCP/IP and Internet protocol suite. ...

In Wikipedia - or more generally in MediaWiki - (point) geo microformat is used as part of {{coord}} which is the preferred way to add point location information to articles and paragraphs.

There are two ways to convert ordinary (X)HTML into a geo microformat:

Three classes

Adding three classes. For example the marked-up text: HTML, short for Hypertext Markup Language, is the predominant markup language for web pages. ...

 <div>Belvide: 52.686; -2.193</div> 

becomes:

 <div class="geo">Belvide: <span class="latitude">52.686</span>; <span class="longitude">-2.193</span></div> 

by adding the class-attribute values "geo", "latitude" and "longitude".

This will display

Belvide: 52.686; -2.193

and a geo microformat for that location, Belvide Reservoir, which will be detected, on this page, by microformat parsing tools. Belvide Reservoir is a reservoir owned by British Waterways. ...

One class

In some cases, a shorthand version may be used, with just the outer class. Latitude MUST be first:

 Belvide Reservoir is at 52.686; -2.193. 

becomes:

 Belvide Reservoir is at <span class="geo">52.686; -2.193</span>. 

Note that the separator MUST be a semi-colon (;). If the display of some other separator is desired, then the abbr element can be used, with the value to be interpreted placed in its title attribute: A semicolon ( ; ) is a punctuation mark. ...

 Belvide Reservoir is at <abbr class="geo" title="52.686;-2.193">52.686, -2.193</abbr>. 

This can also be used to display the location using some other schema:

 Belvide Reservoir is at <abbr class="geo" title="52.686;-2.193">Grid reference SJ870099</abbr>. 

However, it is considered bad practice to use abbr to hide the location completely:

 Belvide Reservoir is <abbr class="geo" title="52.686;-2.193">nice to visit</abbr>. 

Accessibility concerns

Concerns have been expressed ^[2] that the use of the abbr element (using the so-called abbr-design-pattern) in the above manner causes accessibility problems, not least for users of screen readers and aural browsers. Work is underway to find an alternative method of presenting coordinates ^[3].

hCard

Each Geo microformat may be wrapped in an hCard microformat, allowing for the inclusion of personal, organisational or venue names, postal addresses, telephone contacts, URLs, pictures, etc. hCard is a microformat for publishing the contact details of people, organizations and venues, in (X)HTML, Atom, RSS, or arbitrary XML. hCard is a 1:1 representation of the vCard standard (RFC 2426). ... A Uniform Resource Locator, URL (spelled out as an acronym, not pronounced as earl), or Web address, is a standardized address name layout for resources (such as documents or images) on the Internet (or elsewhere). ...

Extensions

There are three active proposals, none mutually-exclusive, to extend the geo microformat:

• geo-extension - for representing coordinates on other planets, moons etc., and with non-WSG84 schema
• geo-elevation - for representing altitude
• geo-waypoint - for representing routes and boundaries, using waypoints

Users

Organisations and other websites using Geo include:

• Flickr - on over 3 million photo pages
• Geograph British Isles - on 350,000+ photo pages
• Multimap - all map pages
• Photrax - all photo pages
• MyMap - example: [1] (Taiwanese language site)
• OpenStreetMap - wiki pages about places, GPS traces and diary entries
• The West Midland Bird Club
• Wikipedia - embedded in geo templates of map-link pages
  • German Wikipedia - ditto
  • Dutch Wikipedia - ditto
  • Italian Wikipedia
• Wikitravel

Many of the organisations publishing hCard include a geo as part of that. Flickr is a photo sharing website and web services suite, and an online community platform, which is generally considered an early example of a Web 2. ... The map browsing interface, showing thumbnail photos for each completed geograph Coverage of the Bristol area in December 2005 Geograph British Isles is a web-based project initiated in March 2005 to create a freely accessible archive of geographically located photographs of the British Isles. ... Multimap. ... OpenStreetMap of Chester OpenStreetMap is a collaborative, project create Free maps using data from portable GPS devices. ... The West Midland Bird Club is the UKs largest regional ornithological society. ... Wikipedia (IPA: , or ( ) is a multilingual, web-based, free content encyclopedia project, operated by the Wikimedia Foundation, a non-profit organization. ... The German Wikipedia is the German-language edition of Wikipedia, a free and publicly editable online encyclopedia. ... The Dutch Wikipedia is a Dutch edition of Wikipedia. ... Italian Wikipedia is the Italian-language edition of Wikipedia. ... Wikitravel is a project to create an open content, complete, up-to-date, and reliable world-wide travel guide. ...

References

• See external links

1. ^ Resig, John (2007-02-01). Microformats in Firefox 3. Retrieved on 2007-03-25.
2. ^ Web Standards Project, hAccessibility: Abbreviations in Microformats
3. ^ Microformats Wiki: Assistive Technology

Year 2007 (MMVII) is the current year, a common year starting on Monday of the Gregorian calendar and the AD/CE era in the 21st century. ... is the 32nd day of the year in the Gregorian calendar. ... Year 2007 (MMVII) is the current year, a common year starting on Monday of the Gregorian calendar and the AD/CE era in the 21st century. ... is the 84th day of the year (85th in leap years) in the Gregorian calendar. ...

External links

• Geo spec with notes and examples
• Geo cheat-sheet a quick reference
• Photrax Project: geocoded photo pages with geo-microformat (e.g. for Firefox Operator Extension)