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Keyhole Markup Language (KML) is an XML notation for expressing geographic annotation and visualization within two-dimensional maps and three-dimensional Earth browsers. KML was developed for use with Google Earth , which was originally named Keyhole Earth Viewer.
Google Maps will only show the last kml file on the page. If you add a business route, it must come before the mainline, otherwise Google Maps will only display the business route. By copying the <Placemark></Placemark> and everything in between, you can merge multiple segments into a single KML file.
Additionally, links may also appear at the top-right of the page. Following the link to the specified web mapping service will load that website, with the map zoomed to the linear feature from the KML file, which will be highlighted. As of September 2015, Bing Maps and Google Maps are the only linked web mapping services.
This template displays links to the popular web mapping service Google (and previously Bing) on articles, and when coupled with the content of a KML file produces a route line on those maps. If the "KML file" offer is clicked on, a file index.php will be presented for download containing the KML content; such a file will be ignored by the ...
Keyhole Markup Language (KML) – XML based open standard (by OpenGIS) for GIS data exchange; MapInfo TAB format – MapInfo's vector data format using TAB, DAT, ID and MAP files; Measure Map Pro format – XML data format to store GIS data; National Transfer Format (NTF) – National Transfer Format (mostly used by the UK Ordnance Survey)
In the same aspect, Google, one of the pioneers in web-based GIS, has developed its own language, which also uses an XML structure. Keyhole Markup Language (KML) is a file format used to display geographic data in an earth browser, such as Google Earth, Google Maps, and Google Maps for mobile browsers "Google KML definition"
Whereas GML is a language to encode geographic content for any application, by describing a spectrum of application objects and their properties (e.g. bridges, roads, buoys, vehicles etc.), KML is a language for the visualization of geographic information tailored for Google Earth. KML can be used to render GML content, and GML content can be ...
The ability to share keyhole markup language (KML) files through sites such as Google Maps means that researchers can find matches based on geographic location rather than just a place name. Family tree mapping applications