Data/hora: 12/06/2024 09:28:41

Biblioteca(s): 	Embrapa Agricultura Digital.	
Data corrente: 	22/08/1996	
Data da última atualização: 	19/12/2007	
Autoria: 	MEDIANO, M. R.; CASANOVA, M. A.; DREUX, M.	
Título: 	A family of storage methods for geographic data.	
Ano de publicação: 	1994	
Fonte/Imprenta: 	In: SIMPÓSIO BRASILEIRO DE BANCO DE DADOS, 9., 1994, São Carlos. Anais... São Carlos: USP-ICMSC, 1994.	
Páginas: 	p.310-323.	
Idioma: 	Inglês	
Notas: 	SBBD'94. Editado por Caetano Traina Júnior.	
Conteúdo: 	The paper first introduces a new data structure, called V-trees, designed to store long sequences of points in 2D space. They operate in much the same way as positional B-trees do in context of long fields, but they are better understood as a variant of R-trees. Then, the paper introduces a second data structure, called VR-trees, that extends V-trees to store sets of sequences of points. Finally, the paper discusses how to use VR-trees to store thematic maps, that is, sets of non-overlapping polygons. The design of these structures was motivated by the problem of storing and retrieving geographic objects that are fairly long, such as river margins or political boundaries, and the fact geographic queries typically access just fragments of such objects,  frequently using a smaller scale.	
Categoria do assunto: 	--	
Registro original: 	Embrapa Agricultura Digital (CNPTIA)	
Exemplares: 	CNPTIA - (3907-1) - ADD - PL - -- - 005.74 - SIM - 1996.00004 - DIS