【摘要】 管网信息系统作为地理信息系统(GIS)的一个部分正得到越来越广泛的应用.通过总结该领域的研究成果,探讨了管网信息系统开发中面向对象的数据模型设计、网上系统的功能扩展等问题,并针对此问题给出了开发思路,对系统的深入研究很有意义.更多还原

【Abstract】 The information system of pipe network which is the application of geographic information system (GIS) is nowadays widely applied in the urban construction. The objectoriented design of data model and the function extension of network system based on the materials in this field are discussed. And the new direction of study on the field is proposed.更多还原