Keyhole Markup language: Difference between revisions
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According to [http://en.wikipedia.org/wiki/Keyhole_Markup_Language Wikipedia] (retrieved April 10, 2011), {{quotation|Keyhole Markup Language (KML) is an XML schema for expressing geographic annotation and visualization within Internet-based, two-dimensional maps and three-dimensional Earth browsers. KML was developed for use with Google Earth, which was originally named Keyhole Earth Viewer. It was created by Keyhole, Inc, which was acquired by Google in 2004. The name "Keyhole" is an homage to the KH reconnaissance satellites, the original eye-in-the-sky military reconnaissance system first launched in 1976. KML is an international standard of the Open Geospatial Consortium.}} | According to [http://en.wikipedia.org/wiki/Keyhole_Markup_Language Wikipedia] (retrieved April 10, 2011), {{quotation|Keyhole Markup Language (KML) is an XML schema for expressing geographic annotation and visualization within Internet-based, two-dimensional maps and three-dimensional Earth browsers. KML was developed for use with Google Earth, which was originally named Keyhole Earth Viewer. It was created by Keyhole, Inc, which was acquired by Google in 2004. The name "Keyhole" is an homage to the KH reconnaissance satellites, the original eye-in-the-sky military reconnaissance system first launched in 1976. KML is an international standard of the Open Geospatial Consortium.}} | ||
KML version 2.2 is one of the many [http://www.opengeospatial.org/ogc Open Geospatial Consortium] (OGC) standards. OGC is {{quotation|is an international industry consortium of 420 companies, government agencies and universities participating in a consensus process to develop publicly available interface standards. OGC® Standards support interoperable solutions that "geo-enable" the Web, wireless and location-based services and mainstream IT.}} (retrieved April 10 2011). | |||
See also: [[Google Sketchup tutorial]] | See also: [[Google Sketchup tutorial]] | ||
Revision as of 13:30, 9 April 2011
Introduction
According to Wikipedia (retrieved April 10, 2011), “Keyhole Markup Language (KML) is an XML schema for expressing geographic annotation and visualization within Internet-based, two-dimensional maps and three-dimensional Earth browsers. KML was developed for use with Google Earth, which was originally named Keyhole Earth Viewer. It was created by Keyhole, Inc, which was acquired by Google in 2004. The name "Keyhole" is an homage to the KH reconnaissance satellites, the original eye-in-the-sky military reconnaissance system first launched in 1976. KML is an international standard of the Open Geospatial Consortium.”
KML version 2.2 is one of the many Open Geospatial Consortium (OGC) standards. OGC is “is an international industry consortium of 420 companies, government agencies and universities participating in a consensus process to develop publicly available interface standards. OGC® Standards support interoperable solutions that "geo-enable" the Web, wireless and location-based services and mainstream IT.” (retrieved April 10 2011).
See also: Google Sketchup tutorial
KMZ integration and software
Google Earth files are Zip 2.0 archives that use the *.kmz extensions. At its root, the doc.kml specifying contents for display.
KML in Google KMZ files
A KMZ archive includes at least:
- A doc.kml file that defining the features for display in a a 3D Earth browser like Google Earth
- Subdirectories that includes assets, typically a Collada file representing a 3D model. For example, Sketchup creates a models directory with a Collada model and a texture subdirectory.
KML software
- kmleditor/ (win). A free KML editor (needs installation of Microsoft .Net 4
- KML Validator (online service)
Links
- At Google
- Other introductions
- Websites
- Examples