TerraLib is an

open-source Open source is source code that is made freely available for possible modification and redistribution. Products include permission to use the source code, design documents, or content of the product. The open-source model is a decentralized sof ...

GIS A geographic information system (GIS) is a type of database containing geographic data (that is, descriptions of phenomena for which location is relevant), combined with software tools for managing, analyzing, and visualizing those data. In a ...

software library that extends object-relational

DBMS In computing, a database is an organized collection of data stored and accessed electronically. Small databases can be stored on a file system, while large databases are hosted on computer clusters or cloud storage. The design of databases span ...

technology to handle spatiotemporal data types. The library supports different DBMS, including

MySQL MySQL () is an open-source relational database management system (RDBMS). Its name is a combination of "My", the name of co-founder Michael Widenius's daughter My, and "SQL", the acronym for Structured Query Language. A relational database ...

PostgreSQL PostgreSQL (, ), also known as Postgres, is a free and open-source relational database management system (RDBMS) emphasizing extensibility and SQL compliance. It was originally named POSTGRES, referring to its origins as a successor to the In ...

, and

Oracle An oracle is a person or agency considered to provide wise and insightful counsel or prophetic predictions, most notably including precognition of the future, inspired by deities. As such, it is a form of divination. Description The wor ...

. Its vector data model is upwards compliant with OGC standards. TerraLib supports the development of geographical applications using

spatial database A spatial database is a general-purpose database (usually a relational database) that has been enhanced to include spatial data that represents objects defined in a geometric space, along with tools for querying and analyzing such data. Most s ...

s. The design goal for TerraLib is to support large-scale applications using socioeconomic and environmental data. It handles spatiotemporal data types (events, moving objects, cell spaces, modifiable objects) and allows spatial, temporal and attribute queries on the database. TerraLib supports dynamic modelling in generalized cell spaces and has a dynamic link with the

R programming language R is a programming language for statistical computing and graphics supported by the R Core Team and the R Foundation for Statistical Computing. Created by statisticians Ross Ihaka and Robert Gentleman, R is used among data miners, bioinforma ...

for statistical analysis. It handles large image data sets. TerraLib is implemented as a library of C++ classes and functions, written in

ANSI The American National Standards Institute (ANSI ) is a private non-profit organization that oversees the development of voluntary consensus standards for products, services, processes, systems, and personnel in the United States. The organ ...

-C++, and has programming interfaces in

Java Java (; id, Jawa, ; jv, ꦗꦮ; su, ) is one of the Greater Sunda Islands in Indonesia. It is bordered by the Indian Ocean to the south and the Java Sea to the north. With a population of 151.6 million people, Java is the world's mo ...

and

Visual Basic Visual Basic is a name for a family of programming languages from Microsoft. It may refer to: * Visual Basic .NET (now simply referred to as "Visual Basic"), the current version of Visual Basic launched in 2002 which runs on .NET * Visual Basic (c ...

. TerraLib has a core development team based in

Brazil Brazil ( pt, Brasil; ), officially the Federative Republic of Brazil (Portuguese: ), is the largest country in both South America and Latin America. At and with over 217 million people, Brazil is the world's fifth-largest country by area ...

. The team includes the Image Processing Division of Brazil's National Institute for Space Research, and the Computer Graphics Technology Group of the

Pontifical Catholic University of Rio de Janeiro The Pontifical Catholic University of Rio de Janeiro ( pt, Pontifícia Universidade Católica do Rio de Janeiro, PUC-Rio) is a Jesuit, Catholic, pontifical university in Rio de Janeiro, Brazil. It is the joint responsibility of the Catholic A ...

. TerraLib is licensed as

according to the LGPL. Using TerraLib, the INPE team developed the TerraView

GIS, which provides functions for data conversion, visualization, exploratory

spatial data analysis Spatial analysis or spatial statistics includes any of the formal techniques which studies entities using their topological, geometric, or geographic properties. Spatial analysis includes a variety of techniques, many still in their early deve ...

, spatial statistical modelling and spatial and non-spatial queries. Another application is

TerraAmazon TerraAmazon is a free GIS software developed by Brazil´s National Institute for Space Research (INPE) anFUNCATE TerraAmazon is a tool designed to be a multi-user editor of geographic vectorial data. It was developed to improve the corporate p ...

, Brazil's national database for monitoring deforestation in the Amazon Rainforest. It handles more than 2 million complex

polygons In geometry, a polygon () is a plane figure that is described by a finite number of straight line segments connected to form a closed '' polygonal chain'' (or ''polygonal circuit''). The bounded plane region, the bounding circuit, or the two t ...

and 60 GB of

remote sensing Remote sensing is the acquisition of information about an object or phenomenon without making physical contact with the object, in contrast to in situ or on-site observation. The term is applied especially to acquiring information about Ear ...

images.

External links

* {{official website, http://www.terralib.org/ Free GIS software Free computer libraries

See also

Further reading

External links