An Efficient Tile-Pyramids Building Method for Fast Visualization of Massive Geospatial Raster Datasets

Autor:	GUO, N., XIONG, W., WU, Q., JING, N.
Jazyk:	angličtina
Rok vydání:	2016
Předmět:	geographic information systems indexing parallel algorithms spatial resolution tiles Electrical engineering. Electronics. Nuclear engineering TK1-9971 Computer engineering. Computer hardware TK7885-7895
Zdroj:	Advances in Electrical and Computer Engineering, Vol 16, Iss 4, Pp 3-8 (2016)
Druh dokumentu:	article
ISSN:	1582-7445 1844-7600
DOI:	10.4316/AECE.2016.04001
Popis:	Building tile-pyramids is an effective way for publishing and accessing the map visualization service of large-scale geospatial data in the web. But it is a time-consuming task in Geographic Information System (GIS) to build tile-pyramids using traditional methods. In this article, an adaptive multilevel tiles generation method is proposed, which first builds grid index for the geospatial raster dataset, and then generates tiles according to different hierarchy level numbers in the tile-pyramid. With the optimized map rendering engine implemented, a parallel tiles pyramid generation method for large-scale geospatial raster dataset is integrated into a high performance GIS platform. Proved by experiments, the new method shows acceptable applicability, stability and scalability besides its high efficiency.
Databáze:	Directory of Open Access Journals
Externí odkaz:	https://doaj.org/article/820e48270e48448590da74c59e4cba69 Zobrazit plný text záznamu View record in DOAJ