基于有向图的管线网GIS一体化数据模型

Integrated spatial data models for pipe-line-network GIS based on directed graph

针对城市管线网GIS领域特色,引入图论代数相关理论、改进GIS现有网络结构模型组织与表达,提出城市管线网GIS一体化空间数据模型,并实现该模型支持下的强大的地理计算和空间分析功能,最后在“数字城市”管线网GIS共享集成平台和专业管线GIS系统中实现了模型的功能应用。

In view of the characteristics of the GIS domain of the urban pipe-line-network, relevant graph theory is introduced and the organization and expression of GIS existing network structure models are improved. The GIS integrated spatial data models of the urban pipe-line-network are proposed. Strong geographical calculations and spatial analysis function are realized under this data models support. The function application of the data models is realized in the integrated and sharing platform and professional pipeline GIS system in oioe-line-network GIS of “digital city” finally.