空间数据可视化的研究与发展

随着3S技术的融合和空间信息处理技术的发展和广泛应用,空间数据的可视化以及基于可视化技术的空间分析、空间数据挖掘和知识发现已经发展成为空间信息处理的重要手段和关键技术。可视化方法已由数据的空间展现逐步发展成为可以表现数据的内在复杂结构、关系和规律的技术。由静态空间关系的可视化发展到表示系统演变过程的可视化。可视化方法不仅用于数据的理解,而且用于空间知识的呈现。可视化技术充分利用了人对于色彩和空间的敏锐的感知能力使人机有机地融合,在空间信息和知识的发现过程中发挥着重要作用。该文总结了空间分析中可视化技术的研究成果,分析了可视化技术的发展现状,给出了可视化方法的分类。从认知和空间数据所表征的客观对象的复杂性及非线性动力学特征分析了其发展演化规律的可视化方法,并对空间数据可视化技术的现状及发展趋势进行探讨。

Research and Development of Spatial Data Visualization

With the integration of3S and developing of spatial information processing technology and wide application of them,spatial data visualization technology and the techniques of spatial analysis,spatial data mining and spatial knowledge discovery have developed into the key technique and a important measure for spatial data processing.Based on displaying the data,the visualization can be used to illustrate the evaluation and development process of a system.The visualization is useful for data exploring and understanding,but also plays an important role in knowledge discovery in spatial data base.The visualization techniques combing the capability of human and computer is a effective tool for knowledge discovery and acquiring.In the paper,the development of visualization techniques in spatial data analysis issummarized and categorized.According to the complex science and nonlinear dynamics' theory,the visualization of complex system are studied,and the trend of visualization in the spatial data analysis are discoursed.