摘要
由于距离Cartogram可以在简化和变形的地理空间上表达空间关系信息,依据网络空间信息可视化模型和网络拓扑结构设计了一种复合距离Cartogram,以基于地理空间位置信息展示网络空间要素间抽象的逻辑关系。为生成网络空间复合距离Cartogram,提出了网络社团节点的坐标转换原则和方法,并针对将其作为控制点进行空间变形产生的拓扑问题,研究了线要素拓扑问题的处理方法。实验证明,该地图可视化方法能够模拟和表达不易明确定位、难以准确度量的网络空间信息,同时利用地理空间知识提高认知网络空间中网络要素、网络结构和网络流现象的效率和效果。
Considering that the distance Cartogram can express the characteristics of spatial relational information in a simplified and deformed geographic space,a composite distance Cartogram is designed according to the cyberspace information visualization model and the topological structure of the network to display the abstract logical relationship between the elements in cyberspace based on their geospatial location information.To generate a cyberspace composite distance Cartogram,the coordinate transformation principle and method for the nodes of network communities are proposed.And with the topological problems caused by the deformation controlled by these nodes in view,the processing method of topological problems of linear elements is studied.The experiment proves that this map visualization method can simulate and express the cyberspace information which is difficult to locate precisely and measure accurately.And with the support of geospatial knowledge,the efficiency and effectiveness of cyberspace cognition about the features,structure and flow phenomena of the network can be improved.
作者
王映雪
李少梅
张鑫禄
张崇涛
王日恒
WANG Yingxue;LI Shaomei;ZHANG Xinlu;ZHANG Chongtao;WANG Riheng(Unit 61206, Beijing 100042, China;Information Engineering University, Zhengzhou 450001, China;Unit 31009, Beijing 100088, China;Unit 32023, Dalian 116021, China;Henan College of Surveying and Mapping, Zhengzhou 451450, China)
出处
《信息工程大学学报》
2020年第3期334-339,360,共7页
Journal of Information Engineering University
基金
国家自然科学基金资助项目(41771487,41571399)
河南省中原学育资助项目(202101510001)。
