@InProceedings{CāmaraFreiCord:1994:ToAlGe,
author = "C{\^a}mara, Gilberto and Freitas, Ubirajara Moura de and
Cordeiro, Jo{\~a}o Pedro Cerveira",
affiliation = "{Divis{\~a}o de Processamento de Imagens (DPI) do Instituto
Nacional de Pesquisas Espaciais (INPE)} and {Divis{\~a}o de
Processamento de Imagens (DPI) do Instituto Nacional de Pesquisas
Espaciais (INPE)} and {Divis{\~a}o de Processamento de Imagens
(DPI) do Instituto Nacional de Pesquisas Espaciais (INPE)}",
title = "Towards an algebra of geographical fields",
booktitle = "Anais...",
year = "1994",
editor = "Freitas, Carla dal Sasso and Geus, Klaus de and Scheer,
S{\'e}rgio",
pages = "205--212",
organization = "Simp{\'o}sio Brasileiro de Computa{\c{c}}{\~a}o Gr{\'a}fica e
Processamento de Imagens, 7. (SIBGRAPI)",
publisher = "Sociedade Brasileira de Computa{\c{c}}{\~a}o",
address = "Porto Alegre",
keywords = "Geographical information systems, spatial data bases, spatial data
manipulation language.",
abstract = "This work presents a proposal for an algebra of geographical
fields. Geographical fields are the mathematical expression of
continuously-varying spatial data, such as thematic maps, digital
terrain models and satellite imagery. The paper outlines an
initial proposal for an algebra of geographical fields that
enables the definition of operations based on the properties of
geographical data, independent of their graphical representation.
This proposal is being used as a data manipulation language in
SPRING, a geographical information system developed by INPE.",
conference-location = "Curitiba, PR, Brazil",
conference-year = "9-11 Nov. 1994",
isbn = "978-85-7669-272-0",
language = "en",
ibi = "8JMKD3MGPBW34M/3DEAF2P",
url = "http://urlib.net/ibi/8JMKD3MGPBW34M/3DEAF2P",
targetfile = "27 Towards an algebra of geographical fields.pdf",
type = "Linguagens e Visualiza{\c{c}}{\~a}o",
volume = "1",
urlaccessdate = "2024, Apr. 25"
}