View- and scale-based progressive transmission of vector data

Authors:
Padraig Corcoran;Peter Mooney;Michela Bertolotto;Adam Winstanley
Affiliations:
Department of Computer Science, National University of Ireland Maynooth;Department of Computer Science, National University of Ireland Maynooth;School of Computer Science and Informatics, University College Dublin;Department of Computer Science, National University of Ireland Maynooth
Venue:
ICCSA'11 Proceedings of the 2011 international conference on Computational science and its applications - Volume Part II
Year:
2011

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Abstract

Progressive transmission represents an effective means for the transmission of spatial data over the web. We classify current implementations of this paradigm as either view- or scale-based, which transmit data in a manner which is a function of the required map region or scale respectively. Although many such approaches exist, the concept of one which is both view- and scale-based has received little attention. This can be attributed to the difficulty in maintaining topological equivalence between the transmitted and original map. In this paper we propose a novel methodology for progressive transmission which overcomes this difficulty. Results demonstrate that significant reductions in the amount of data transmitted are achieved when compared to view- and scale-based approaches.