GPS与GIS集成初论

GPS的高精度定位特性使其成为GIS系统中重要的数据来源，在现实生活和科研中有广泛的应用。本文介绍用VB，VC等通用编程工具，利用DLL，DDE，OCX等计算机技术，通过串口编程，在GIS软件中实现GPS功能的几种不同实现手段。

RESEARCH OF INTEGRATING GPS INTO GIS

The Global Position System become the important data sources of Geographical information System for the precise position data it provide, and it is more broadly useful in life and scientific research. The method is implementing of serial port communication by programming in Visual basic or C + +, there are two different ways to do it, one is the method that creat a application by VB or VC receiving and processing GPS signal, then send signal to GIS to display in a DDE conversation; the other is the method that creat a DLL file can be call in GIS, or creat a software which has entire funtion to receive and display GPS signal on the base of gis control; they are only formally different. In addition, some source codes for implementing the function are also presented in this paper.