Glossary¶
- ESRI
- Esri (a.k.a. Environmental Systems Research Institute) is an international supplier of geographic information system (GIS) software, web GIS and geodatabase management applications. The company is headquartered in Redlands, California.
- GDAL
GDAL is a translator library for raster geospatial data formats. As a library, it presents a single abstract data model to the calling application for all supported formats. The related OGR library (which lives within the GDAL source tree) provides a similar capability for simple features vector data.
GDAL supports many popular data formats, including commonly used ones (GeoTIFF, JPEG, PNG and more) as well as the ones used in GIS and remote sensing software packages (ERDAS Imagine, ESRI Arc/Info, ENVI, PCI Geomatics). Also supported many remote sensing and scientific data distribution formats such as HDF, EOS FAST, NOAA L1B, NetCDF, FITS.
OGR library supports popular vector formats like ESRI Shapefile, TIGER data, S-57, MapInfo File, DGN, GML and more.
- GeoTIFF
GeoTIFF is a public domain metadata standard which allows georeferencing information to be embedded within a TIFF file.
The potential additional information includes map projection, coordinate systems, ellipsoids, datums, and everything else necessary to establish the exact spatial reference for the file.
- GPS
- a navigational system involving satellites and computers that can determine the latitude and longitude of a receiver on Earth by computing the time difference for signals from different satellites to reach the receiver [syn: {Global Positioning System}, {GPS}]
- JPEG
- JPEG is a commonly used method of lossy compression for digital images, particularly for those images produced by digital photography. The degree of compression can be adjusted, allowing a selectable tradeoff between storage size and image quality. JPEG typically achieves 10:1 compression with little perceptible loss in image quality. JPEG is the most widely used image compression standard on the internet.
- JSON
- In computing, JavaScript Object Notation or JSON is an open-standard file format that uses human-readable text to transmit data objects consisting of attribute–value pairs and array data types (or any other serializable value). It is a very common data format used for asynchronous browser–server communication.
- LDAP
- Lightweight Directory Access Protocol (RFC 1777, X.500, DS, AD, CORBA)
- MQTT
- Message Queuing Telemetry Transport (ISO/IEC PRF 20922) is a publish- subscribe-based messaging protocol. It works on top of the TCP/IP protocol. It is designed for connections with remote locations where a “small code footprint” is required or the network bandwidth is limited. The publish-subscribe messaging pattern requires a message broker.
- NMEA
- National Marine Electronics Association [protocol] (org., USA, GPS), http://www.nmea.org
- NOAA
- The National Oceanic and Atmospheric Administration is an American scientific agency within the United States Department of Commerce that focuses on the conditions of the oceans, major waterways, and the atmosphere.
- PNG
- Portable Network Graphics is a raster-graphics file-format that supports lossless data compression. PNG was developed as an improved, non-patented replacement for Graphics Interchange Format (GIF).
- Radar
- measuring instrument in which the echo of a pulse of microwave radiation is used to detect and locate distant objects [syn: {radar}, {microwave radar}, {radio detection and ranging}, {radiolocation}]
- S-57
- IHO S-57 / Electronic Nautical Charts (ENCs) - proprietary and often encrypted (see S-63) to prevent unauthorized distribution.
- S-63
- Encrypted versions of S-57 nautical charts
- VCS
- Version Control System, what you use for versioning your source code
- XMPP
Extensible Messaging and Presence Protocol (XMPP) is a communication protocol for message-oriented middleware based on XML (Extensible Markup Language). It enables the near-real-time exchange of structured yet extensible data between any two or more network entities.
Originally named Jabber, the protocol was developed by the Jabber open-source community in 1999 for near real-time instant messaging (IM), presence information, and contact list maintenance.
Designed to be extensible, the protocol has been used also for publish- subscribe systems, signalling for VoIP, video, file transfer, gaming, the Internet of Things (IoT) applications such as the smart grid, and social networking services.