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The root KML document by convention is a file named "doc.kml" at the root directory level, which is the file loaded upon opening. By convention the root KML document is at root level and referenced files are in subdirectories (e.g. images for overlay). [7] An example KML document is:
However, new file formats have continued to appear, especially with the proliferation of web mapping; formats such as the Keyhole Markup Language (KML) and GeoJSON can be more easily integrated into web development languages than traditional GIS files.
Example of KML code displayed within a browser window. If after clicking on the KML file link, a plain page full of code is displayed (see image for example): Select the entire contents of the page (Ctrl+A on Windows, ⌘ Cmd+A on Macintosh), and then copy it (Ctrl+C on Windows, ⌘ Cmd+C on Macintosh)
In each of the .shp, .shx, and .dbf files, the shapes in each file correspond to each other in sequence (i.e., the first record in the .shp file corresponds to the first record in the .shx and .dbf files, etc.). The .shp and .shx files have various fields with different endianness, so an implementer of the file formats must be very careful to ...
Keyhole Markup Language (KML/KMZ) [1] - the XML-based markup language used for exchanging geographic information for use with Google Earth. Markdown - simple plaintext markup popular as language of blog/cms posts and comments, multiple implementations. [2] Mathematical Markup Language (MathML) Scalable Vector Graphics (SVG)
Spatial Data File – high-performance geodatabase format, native to MapGuide (by Autodesk) TIGER – Topologically Integrated Geographic Encoding and Referencing Vector Product Format – National Geospatial-Intelligence Agency (NGA)'s format of vectored data for large geographic databases
Leaflet supports Web Map Service (WMS) layers, GeoJSON layers, Vector layers and Tile layers natively. Many other types of layers are supported via plugins.. Like other web map libraries, the basic display model implemented by Leaflet is one basemap, plus zero or more translucent overlays, with zero or more vector objects displayed on top.
KML, made popular by Google, complements GML. 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 ...