Research on data organization and visualization of marine element temporal spatial process

摘要

Modeling and visualization of marine environment data are important problems to be solved in marine GIS. In this paper, according to the characteristics of marine process data, features are regarded as basic units and object-oriented technology is applied for designing of temporal-spatial attributes, functions and relationships of features. Marine environmental data organization are proposed for marine temporal-spatial process visualization; a software framework of marine processes visualization based on earth model is proposed while a series of visualization methods facing marine data are designed, including time series analysis of point pattern, line pattern, area pattern and volume pattern; visualization methods on marine area process and volume process are mainly studied, ray casting algorithm based sphere model is proposed and process visualization of marine volume data is realized.