基于GIS的地下水模拟可视化系统开发的初步探讨

系统开发的目的是克服GIS时空分析能力的不足，实现地下水模型与MAPGIS的耦合集成，在集成的基础上构建系统的可视化功能，在GIS平台上为地下水模拟的全过程提供一个统一高效的计算机环境。系统开发采用面向对象的软件开发方法，对各种地下水模型进行分解、抽象，建立基本的C＋＋类类型，每个模型都是基本类及其派生类对象的聚集类。系统实现的技术途径是以MAPGIS的二次开发函数作为“后台”支持，以VC＋＋作为编程工具，在充分利用MAPGIS的可视化功能的基础上，借助于OpenGL并应用科学可视化技术开发更能满足地下水模拟需要的可视化功能。

A PRELIMINARY STUDY ON GROUNDWATER MODELING VISUALIZATION SYSTEM BASED ON GIS INTEGRATION

The purpose of the developing system is to couple groundwater models to MAPGIS, to set up visualizing functions of the system on the basis of the integration and to provide a high efficient computer circumstance for the full process of groundwater modeling on GIS. The developing system adopts the object oriented method. It analyzes and abstracts various groundwater models into basic C++ class types. Every model is a aggregation class of the objects belonging to the basic and derived classes. The technical approach of the development is to take VC++ as programming tool to develop the visualizing function with the help of MAPGIS's API, OpenGL and the technique of scientific visualization to meet the need for the groundwater modeling.