Generating Schematic Network Maps by Simplification and Partition

LI Jiatian; JIA Chenglin; ZHANG Lan; LI Xiankai; LI Yingyun; LUO Fuli

doi:10.13203/j.whugis20150010

Volume 42 Issue 6

Jun. 2017

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Geomatics and Information Science of Wuhan University > 2017 > 42(6): 721-725. > DOI: 10.13203/j.whugis20150010

LI Jiatian, JIA Chenglin, ZHANG Lan, LI Xiankai, LI Yingyun, LUO Fuli. Generating Schematic Network Maps by Simplification and Partition[J]. Geomatics and Information Science of Wuhan University, 2017, 42(6): 721-725. DOI: 10.13203/j.whugis20150010

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Generating Schematic Network Maps by Simplification and Partition

1.
Faculty of Land Resource Engineering, Kunming University of Science and Technology, Kunming 650093, China

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The National Natural Science Foundation of China 41561082

The National Natural Science Foundation of China 41161061

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LI Jiatian, PhD, professor, specializes in numerical optimization and scene understanding for robot.ljtwcx@163.com
Received Date: August 17, 2015
Published Date: June 04, 2017

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Abstract

Abstract

The harmony of the whole and the local layout is the key to generating schematic network maps. The existing methods simply take line segments as the basic unit for schematization and easily cause global inconsistency or local deformation of schematic results when spatial distribution is not balanced. Considering the properties of connectivity and closure of network structures, this paper presents a new method to generate schematic maps by network simplification and partition. The core idea is simplifying network structures into meshes and lines. Firstly, the number of nodes are reduced and the direction and length of lines are adjusted to form a consistent simplification network. Secondly, the network structure is partitioned into a mesh set and line set. Thirdly, meshes and lines are schematized, avoiding local congestion by mesh schematization. An experiment shows the performance of our method under different constraints and makes comparisons with the classical iteration optimization method. Results indicate the advantages of our method in preserving the overall network shape and local element arrangements.
- network,
- whole and local,
- simplification and partition,
- mesh,
- schematic map

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References

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