Cpa - gis use the maplnfo to manage attributable information and geography . the application program operating maplnfo and data exchange between the systems is developed through ole Cpa _ gis系统利用mapinfo管理给水管网的属性数据和图形，利用vb开发应用软件，通过ole技术实现应用软件对mapinfo操作和系统间的数据交换。
Actual applications express the usage of the procedure worked out is convenient and fast . the work efficiency can increase consumedly . and this makes the optimization result easy to manage 算例实际应用表明，开发出的程序使用方便快捷，简化了给水管网优化设计工作，能大大提高给水管网优化设计的工作效率，并使优化的结果便于管理。
This paper makes full use of the strong computation ability of visual fortran and the drawing advantages of vba tool in auto cad . it reaches the goal of optimal design of water supply networks - and drawing automatization 在本课题的完成过程中，充分利用了visualfortran的计算功能autocad中vba的绘图优势，实现了给水管网的优化设计和绘图自动化。
Firstly , the status quo , content and sense about the optimal design of water supply networks are introduced . hydraulic theory of water supply networks and the theory and flow of optimization methods - ga are discussed 本文首先介绍了给水管网优化设计的现状以及优化设计的内容与意义，论述了给水管网水力计算理论和最优化方法?遗传算法的理论及设计计算流程。
From the example we used in this paper , we can draw the conclusion that better economic effects are reached with the ipga aided design . it is proved that ipga has prosperous application in the field of optimal design of water supply networks 算例分析表明，应用ipga法对城市管网优化设计能够得到较好的效果，通过比较，证明这种方法适用于给水管网优化领域。
About energy economization , mainly introduced how new technologies and methods are used in utilizing of hydraulic head , decreasing pressure and quantity , setting of fire - fighting system , water pump , supplying of hot water etc 关于节能，主要介绍了在给水管网水头的利用方面，减压节流问题方面，生活与消防系统设置方面，水泵方面，开水供应方面的节能新方法、新技术。
After hydraulic calculation analysis , design of optimal models , and computer analysis of water supply networks , a computation program for optimal design was wrote by ipga . some improvement was made on the algorithm 通过对给水管网水力计算分析、给水管网计算机分析基础的研究，建立管网优化模型，用ipga法编制了城市给水管网优化计算程序，并对算法作了一些改进。
