Similar to shapefiles, they require a set of files to represent geographic information and attributes. MapInfo TAB files are a proprietary format for MapInfo software. Location properties including time, elevation and geoid height as tags. Because GPX is an exchange format, you can openly transfer GPS data from one program to another based on its description properties.The minimum requirements for GPX are latitude and longitude coordinates.

GPS Exchange format is an XML schema that describes waypoints, tracks, and routes captured from a GPS receiver. The vertical component (altitude) is measured in meters from the WGS84 EGM96 Geoid vertical datum. The longitude and latitude components (decimal degrees) are as defined by the World Geodetic System of 1984 (WGS84). KML/KMZ became an international standard of the Open Geospatial Consortium in 2008. KML was developed by Keyhole Inc which was later acquired by Google.KMZ (KML-Zipped) replaced KML as being the default Google Earth geospatial format because it is a compressed version of the file. This GIS format is XML-based and is primarily used for Google Earth. This is because GML results in more data for the same amount of information. There is generally more overhead when comparing GML with GeoJSON. Each feature has a list of properties, geometry (points, lines, curves, surfaces, and polygons), and a spatial reference system. Similar to GeoJSON, GML can be updated in any text editor. GML stores geographic entities (features) in the form of text. And eXtensible Markup Language (XML) is both human-readable and machine-readable. GML allows for the use of geographic coordinates extension of XML. It is one of the most common open-standard formats for online web mapping applications. GeoJSON is a format for encoding geographic data structures, such as points, lines, and polygons, using JavaScript Object Notation (JSON).

Geographic JavaScript Object Notation (GeoJSON) PRJ is the projection system metadata.XML is the associated metadata.SBN is the spatial index for optimizing queries.SBX optimizes loading times.You can optionally include these files but are not completely necessary. It’s so ubiquitous that it’s become the industry standard.īut you’ll need a complete set of three files that are mandatory to make up a shapefile. All commercial and open source accept shapefile as a GIS format. The shapefile is BY FAR the most common geospatial file type you’ll encounter.

Social tables file format