View source for Geo microformat extractor

Geo microformat extractor reads HTML documents and fragments, and creates topics and associations for [http://microformats.org/wiki/geo geo] structures. Geo structures are used to mark up geographical coordinates (latitude and longitude). Geo Microformat extractor starts with menu option '''File > Extract > Microformats > Geo microformat extractor...''' or selecting the extractor as the [[Drag and drop extractor]] and dropping HTML fragments directly from the WWW browser.

== Geo microformat extraction example ==

First, Wandora user selects Geo extractor as current drag and drop extractor.


[[Image:Geo_example_wandora.gif|center]]


Italian Wikipedia contains a page for Genova, a city in north Italia. Right column of the Genova page has an info box with Genova's geographical coordinates. User selects coordinate text as shown below and drags the text fragment over Wandora's drag and drop extractor.


[[Image:Geo_example_wikipedia.gif|center]]


When user drops the fragment, Wandora recognizes geo microformat structure and creates equivalent topic map structures. Recognized geo microformat structure is 

  <pre>
  <span class="latitude">44°24′40.16″N</span>
  <span class="longitude">8°55′57.58″E</span></pre>

Preceding '''Coordinate:''' in selection is interpreted as a label for the geo-location. Extracted structures can be found in Wandora with finder and '''geo''' keyword. Screenshot below views extracted association.


[[Image:Geo_example_wandora_loc.gif|center]]


Notice Wandora handles coordinates as strings. As different sites use different coordinate representations it is possible Wandora doesn't merge same coordinates. Notice also Wandora has no feature to estimate distance of coordinates at the moment.

== See also ==


* [[Adr microformat extractor]]
* [[HCalendar microformat extractor]]
* [[HCard microformat extractor]]