面向对象的空间数据采集

Object-Oriented Spatial Data Digitising

本文主要介绍在Turbo C++支撑下,用面向对象的方法,对地图的空间数据进行采集、分类、编辑、净化。该系统利用C++中面向对象的概念及类的继承与地图数据的层次关系相吻合的特点,使得数据的输出能满足更多的要求,并且针对地图数据量大的特点,引入了多态和动态覆盖相结合的方法,以满足内存和速度两方面的要求。

With the surport of Turbo C++ and leading into the OOP (Object-Oriented Programming), this paper introduced the realizing process of spatial date digitting,classifying,editting and cleaning.In order to make output of date content to different require, the Object-Oriented Digit System (OODS) utilized the object Oriented concept and the peculiarity that inherit of class is identical to administrative levels of spatiel data.In addition,OODS lead into the technology of polymorphism combining with VRROOM (Virtual Runtime Object-Oriented memory manager) to salve the lance between speed and memory.