Multi-scale schematic representation of line networks
ISBN 978-85-88783-11-9
Authors
1Zhilin, L.; 2Peng, T.
1Hong Kong Polytechnic University, Hong Kong Email: lszlli@polyu.edu.hk
2Southwest Jiaotong University, Chengdu, China
Abstract
It has been widely recognized that maps have three basic characteristics, i.e. measurement by employing scale and map projection, intuition by employing symbolization, and abstractive overview by adopting generalization. In the past, the accuracy of measurement on a map is very emphasized for mapping practice. As a result, mapping agencies do their best to make maps as accurate as possible to meet the requirements of map specifications. However, in modern days, maps are not only utilized by professionals but also more widely used by the general public. For the latter, accuracy is not necessarily the big concern any more and thus usability is more emphasized in recently years. With such an emphasis shift, schematic maps like London Tube maps have become more and more popular. This presentation will present techniques for multi-scale representation of schematic maps for line networks. In this presentation, an overview of the development in schematic maps is given and then issues discussed; approaches for schematization are then investigated and .techniques for multi-scale representation of schematic maps are tackled. An evaluation is then carried out with real-life data.
Keywords
Schematic maps; map design; multi-scale representation