GIS系统中多维海洋数据可视化研究

Visualization of Multi-dimension Oceanographic Data in Geography Information System

提出设计混合型GIS系统解决方案,可以在同一个视图窗体中分别从海洋表面、海洋内部、海底表面和海底深部四个空间层次来可视化显示2D,2.5D和3D矢量-栅格海洋数据.Geodatabase地理数据模型有助于统一组织、管理、可视化表达多维海洋数据,是构建海洋地理数据库的有效方式.基于ArcEngine软件开发设计混合型GIS,表明混合型GIS能够真实地表达数据几何位置,不仅能够表达空间对象之间的平面关系,而且能描述和表达它们之间的垂向关系,保证用户能够对多维海洋空间对象进行空间操作.

The paper presents a solution of designing a combined geography information system （GIS） which can visualize and analyze 2D, 2. 5D and 3D vector or raster oceanographic data from the surface, inner, floor and deep of marine in the same view. The Geodatabase geographic data model is benefit to organize, manage and visualize multidimension oceanographic data, therefore it is the best way to use Geodatabase to construct oceanographic database. With the development of combined GIS based on ArcEngine, geometry position of spatial data can be exactly located, in other words, beth the planar relation of spatial data and the vertical relation of spatial data can be described, as a result, users can operate multi-dimension oceanographic data in the combined GIS.