电气化铁路接触网平面布置图参数化绘图系统
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摘要
系统是基于 AutoCAD2002 平台,在 Visual LISP 环境下,采用面向对象的编程方
    法,运用参数化设计的原理,设计开发了运行于 Windows9x~ XP 上的电气化铁路接触
    网平面布置图参数化绘图系统。
    电气化铁路接触网平面布置图的绘制是接触网整体设计中极其重要的一环,本
    文从系统的观点出发,首先对铁路接触网平面布置图的绘制工作做了详细分析,
    提出了系统的结构和功能;然后详细讨论用户菜单及对话框的定制,并列出主要的对
    话框控制程序;接着通过对初始化绘制图形过程中所涉及的数据的分析,提出并
    实现对初始化绘图数据的管理。它是针对铁路接触网平面布置图的特点来完成选
    择区间或站场绘制、图纸设定、图型设定、字符高度、图型坐标点、绘图基点
    和图型数据文件保存路径的设置以及布置图的标注栏和明细表尺寸设置;紧接
    着通过对接触网平面布置图的绘图中所涉及的各种类型数据进行分析,提出并
    实现绘图数据管理子系统,它包括建立绘图系统的数据结构,对数据进行编辑
    管理,向整个系统提供绘图数据,供其后的图形绘制使用;最后通过对参数化设
    计的相关理论进行介绍,阐述了各种参数化技术的异同点和适用范围,并结合铁路接
    触网平面布置图的特点具体分析了接触网线路的尺寸约束。该系统依赖参数化方
    法所具备的快速、简洁、参数驱动、符合设计者习惯等特性,将尺寸参数融入到数据
    结构中,利用尺寸驱动技术实现尺寸约束,实现区间单、复线和站场接触网平面
    布置图的绘制。
    该系统具有界面友好、操作简单、绘图方便和自动修改等特点,适用于铁
    路接触网平面布置图的绘制和修改。
Based on AutoCAD platform, under Visual LISP environment, adopting
    target-oriented programming method and applying parameterized design principle, the
    parameterized drawing system of the plane arrangement maps of electrified railway contact
    net is developed.
     Given that the drawing of plane arrangement maps of electrified railway contact net is
    one of the important junctures of the whole contact net design, starting from the perspective
    of system, the paper firstly analyzes the drawing task of the plane arrangement maps of
    railway contact net in details and presents the structure and function of the system, secondly
    discusses the formulation of consumer menu and dialogue frame and lists the main controlling
    program of dialogue frame, then by analyzing the involved data of originally drawing course
    gives and realizes the management of the original drawing data, which achieves the drawing
    of choosing inter-station and station, the establishment of drawing papers and drawing form,
    the setting-up of character height and the drawing form coordinate points and drawing starting
    points and the preserving routes of data documents of drawing form and the note-marking
    column and the size of subsidiary table. By analyzing all sorts of data involved in the drawing
    of plane arrangement of the contact net, the paper then presents and realizes the sub-systems
    of drawing data management, which includes setting up the data structure, programming and
    managing of the data and provides the drawing data for the whole system used for the later
    drawing, finally by introducing the concerned theories of the parameterized design explains
    the similarities and differences and their applied scope of all kinds of parameterized
    technologies, and by associating with the features of the plane arrangement maps of the
    railway contact net analyzing size restraint of contact net. The system depends on the features
    of rapidness, simplicity, driving by parameter and fitting for designers’ habits and blends the
    size parameter into data structure and by using the driving technology realizes the drawing of
    single and double track lines of inter-station and the plane arrangement maps of station
    contact net.
     The system has the features of friendly interface, simple operation, convenient drawing
    and automatic correction and can be applied for the drawing and correction of the plane
    arrangement map of railway contact net.
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