Open AccessAn Efficient Tile-Pyramids Building Method for Fast Visualization of Massive Geospatial Raster Datasets
Author(s) -
Ning Guo,
Wei Xiong,
Qunyong Wu,
Ning Jing
Publication year - 2016
Publication title -
advances in electrical and computer engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.254
H-Index - 23
eISSN - 1844-7600
pISSN - 1582-7445
DOI - 10.4316/aece.2016.04001
Subject(s) - geospatial analysis , tile , visualization , raster graphics , computer science , geospatial pdf , geographic information system , computer graphics (images) , database , data mining , remote sensing , geology , geography , archaeology
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