Acta Geodaetica et Cartographica Sinica ›› 2018, Vol. 47 ›› Issue (8): 1098-1104.doi: 10.11947/j.AGCS.2018.20180104

Previous Articles     Next Articles

The Multi-level Visualization Task Model for Multi-modal Spatio-temporal Data

LIU Mingwei1, ZHU Qing1, ZHU Jun1, FENG Bin1, LI Yun1, ZHANG Junxiao1, FU Xiao1, ZHANG Pengcheng2, YANG Weijun2, NING Xinwen1,3, XU Wanyan4   

  1. 1. Faculty of Geosciences and Environmental Engineering, Southwest Jiaotong University, Chengdu 611756, China;
    2. Guangzhou Urban Planning and Design Survey Research Institute, Guangzhou 510060, China;
    3. China Railway Design Corporation, Tianjin 300251, China;
    4. The Bureau of Land and Resources of Lipu, Guilin 546600, China
  • Received:2018-01-12 Revised:2018-04-04 Online:2018-08-20 Published:2018-08-22
  • Supported by:
    The National Natural Science Foundation of China (No. 41471320);The Smart Guangzhou Spatio-temporal Information Cloud Platform Construction (No. GZIT2016-A5-147)

Abstract: The existing spatio-temporal data visualization methods are mainly targeted at low-level view-only visualization tasks,which is difficult to meet the high concurrency and multi-level visualization tasks of multi-modal spatio-temporal data.To address this challenge,it is presented that the multi-level visualization task model for multi-modal spatiotemporal data,which categorized the visualization task as view-only visualization task,analytical visualization task and explorative visualization task.The main features of this model are:①it described the main driving forces and spatio-temporal information needed in different level of tasks;②it described the requirements of task and its relationship between storage,computing and rendering.Based on the model,task-aware and adaptive spatiotemporal data visualization engine is designed.Finally taking the refinement management and decision-making applications in smart city as an example,the model is proved to be effectively meet the needs of multi-level visualization and analysis applications and could lay a solid foundation for the complex applications in smart city.

Key words: multi-modal spatio-temporal data, visualization task, task model, task-aware, adaptive visualization

CLC Number: