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Evangelism/Firefox3.5/35Days/Articles/geolocationDemo: Difference between revisions
Evangelism/Firefox3.5/35Days/Articles/geolocationDemo (view source)
Revision as of 12:50, 12 June 2009
, 12 June 2009→Geolocation API and free data providers
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These informations are displayed as a set of layers. | These informations are displayed as a set of layers. | ||
* The first one, the base layer is the map itself, provided by OpenStreetMap. It's a project to create and provide free geographic data, such as street maps, to anyone who wants them. | * The first one, the base layer is the map itself, provided by '''OpenStreetMap'''. It's a project to create and provide free geographic data, such as street maps, to anyone who wants them. | ||
* The next one is wikipedia's articles. In some articles, like [http://en.wikipedia.org/wiki/Mountain_View,_California Mountain View] or [http://en.wikipedia.org/wiki/Montpellier Montpellier], you can find coordinates. GeoNames provides a web-service to query wikipedia's articles from the geo-localised parameters. In the demo, you can discover wikipedia's article around you. | * The next one is '''wikipedia's articles'''. In some articles, like [http://en.wikipedia.org/wiki/Mountain_View,_California Mountain View] or [http://en.wikipedia.org/wiki/Montpellier Montpellier], you can find coordinates. GeoNames provides a web-service to query wikipedia's articles from the geo-localised parameters. In the demo, you can discover wikipedia's article around you. | ||
* The last one is directly GeoNames' information. GeoNames is a geographical database covering all countries and containing over eight million placenames. In the demo you can discover (around you) some information provides by GeoNames like cities, village, lake, parks, hotels which you can find around you. | * The last one is directly '''GeoNames' information'''. GeoNames is a geographical database covering all countries and containing over eight million placenames. In the demo you can discover (around you) some information provides by GeoNames like cities, village, lake, parks, hotels which you can find around you. | ||
All the map and layer mechanism is powered by OpenLayers, a free Javascript library constructs to put a dynamic map in any web page. | All the map and layer mechanism is powered by OpenLayers, a free Javascript library constructs to put a dynamic map in any web page. | ||