The formula of internal boundary conditions,such as drainage outflow,barrage,slice gate and drainage pump station,with double-recursion algorithm are deduced by using the concept of virtual channel segment.
基于邻接矩阵和邻接表概念,提出了新的拓扑结构,即利用net、edge和node对象实现河网拓扑信息及河道断面和结点信息的储存;基于虚设河段法,推导出城市河网内边界即集中入流(雨水管出口)、闸堰的追赶系数,从而实现了基于GIS平台的城市河网非恒定流一维数值模拟程序的通用性和可移植性。
In order to meet the demands that managing the landscape lighting effectively in the digital city,this essay tells how to make use of the computer technology and digital lighting technology to build a landscape lighting virtual design and control system to serve for the digital city.
针对数字城市中有效管理景观照明的需求,本文提出了运用计算机技术和数字照明技术构建数字城市的景观照明虚拟设计与控制系统的构想,并对该系统的基本结构,功能模块,信息集成及运作方式进行了深入的探讨。
In order to meet the demands that manag the landscape lighting effectively in the digital city, this essay tells how to make use of the computer technology and digital lighting technology to build a landscape lighting virtual design and control system to serve for the digital city.
针对数字城市中有效管理景观照明的需求,本文提出了利用计算机技术和数字照明技术构建数字城市的景观照明虚拟设计与控制系统的构想,并对这样的系统的基本结构,内部通信协议内容及其运行方法进行了深入的探讨。