基于Power图的高铁建设对城市空间格局研究

Research on Urban Spatial Pattern of High-speed Rail Construction Based on Power Map

Power图的生成元不再是点而是power球,即到给定两power球距离相等的面为超平面。一般图形Power图在地理信息系统及城市规划等方面有着重要应用,如行政区域的划分,边界的管辖区,资源有效利用的划分,交通道路规划、快递服务辐射范围等等。现仅以京沈高铁建设对城市空间格局分区为例,应用离散构造法生成其一般图形Power图,对其控制区域和覆盖状况进行简要分析。

The generator of a power graph is no longer a point but a power sphere,that is,a hyperplane is a plane with equal distance to a given two power spheres.General graphic power map has important application in GIS and urban planning,such as the division of administrative areas,the jurisdiction of the border,the division of effective use of resources,traffic road planning and so on.In this paper,taking the urban spatial pattern zoning of Beijing Shenyang high-speed railway as an example,the general graphic Power map is generated by using the discrete structure method,and the control area and coverage status are briefly analyzed.