A progressive transmission scheme for vector maps in low-bandwidth environments based on device rendering

Authors:
David Cavassana Costa;Anselmo Cardoso de Paiva;Mario Meireles Teixeira;Cláudio de Souza Baptista;Elvis Rodrigues da Silva
Affiliations:
Departamento de Informática, Universidade Federal do Maranhão, São Luis, Ma, Brasil;Departamento de Informática, Universidade Federal do Maranhão, São Luis, Ma, Brasil;Departamento de Informática, Universidade Federal do Maranhão, São Luis, Ma, Brasil;Computer Science Department, University of Campina Grande, Campina Grande, PB, Brazil;Computer Science Department, University of Campina Grande, Campina Grande, PB, Brazil
Venue:
CoMoGIS'06 Proceedings of the 2006 international conference on Advances in Conceptual Modeling: theory and practice
Year:
2006

Citing 4
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Abstract

The Internet has created an interesting environment for geospatial data sharing, so that users may transfer, visualize, manipulate and interact the data sets. This environment not only provides new opportunities to geospatial data usage, but also introduces new problems that should be addressed in order to provide an efficient and effective use of these datasets. One of such problems is related to the use of these spatial datasets in a low-bandwidth environment, such as those involving mobile computing. This paper presents a progressive transmission method for vector maps on the Web. The proposed method anticipates the map rasterization process to be performed at the server side, so that the amount of information transmitted may be reduced. We combine scale-dependent transmission techniques with simplification and progressive ones, in order to maximize the overall performance of a Web GIS environment.