Acta Geodaetica et Cartographica Sinica >

2018 , Vol. 47 >Issue 1: 123 - 132

DOI: https://doi.org/10.11947/j.AGCS.2018.20170180

A New Method of Constructing a Central Time-space Map

  • WANG Lina ,
  • LI Xiang ,
  • JIANG Nan ,
  • YANG Zhenkai ,
  • YANG Fei
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  • Institute of Surveying and Mapping, Information Engineering University, Zhengzhou 450052, China

Received date: 2017-02-23

  Revised date: 2017-10-23

  Online published: 2018-02-05

Supported by

The National Natural Science Foundation of China(No. 41401467);National Key Research and Development Program(No. 2016YFB0502300)

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Abstract

A central time-space map is an effective method for representing time distance from any positions to a given point on a map.We proposed a new method of generating a central time-space map based on moving least squares(MLS).Compared with other methods,our method solved the following 3 problems:①the law of consistency of distance was used to keep the same scale of a time-space map and its original map;②we used some constraints to adjust topological errors generated by the process of transformation;③many visualization methods were used to represent a time-space map's distortion.Finally,we took real trains' timetable data in China in 2016 as a case study to generate a time-space map with Beijing as the center.The results showed that the time distance relationship between Beijing and other cities from a different perspective and were also helpful for further discovering some knowledge and trends of the development of railway transportation in China.

Key words： time-distance visualization; time-space map; moving least squares(MLS); spatial distortion

Cite this article

WANG Lina , LI Xiang , JIANG Nan , YANG Zhenkai , YANG Fei . A New Method of Constructing a Central Time-space Map[J]. Acta Geodaetica et Cartographica Sinica, 2018 , 47(1) : 123 -132 . DOI: 10.11947/j.AGCS.2018.20170180

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