【作者】 邓亚士；

【导师】 王广俊；

【作者基本信息】 西南交通大学 ， 结构工程， 2004， 硕士

【摘要】 本论文成功地研制开发了铁路路基排水用地CAD系统(YDPSCAD)，它是继铁路勘测设计一体化项目的平面设计系统、纵断面设计系统和横断面设计系统之后的又一铁路线路设计子系统。 本系统是在Windows NT 4.0操作系统上进行开发的，采用了目前最为优秀的Windows平台开发工具之一——Visual C++6.0作为系统开发平台；选用了集绘图和开发为一体的计算机辅助设计系统——AutoCAD 2000作为图形支撑环境；同时应用了AutoCAD最强有力的二次开发工具ObiectARX 2000进行系统开发。本系统可以在各种版本的Windows环境下运行。 本论文在叙述系统整个开发过程的同时，还详细地阐述了开发过程中所使用的关键技术，如：面向对象技术、线路带状地形图大地坐标系向用户自定义坐标系的转换技术、图形实体在切图线位置的自动断开技术、图数合一技术以及文字标注的动态控制技术等等。本系统的一个较为突出的特点就是具有良好的人机交互功能和比较完善的自动校验体系，从设计数据的准备到对话框数据的输入、系统命令的执行，再到最后成果的输出，系统都有相应的信息提示。 文章最后向读者展示了一个应用本系统进行铁路路基排水用地设计的具体实例。铁道部第一勘测设计研究院已经应用本系统完成了近百册路基排水用地的设计工作，实践证明了本系统的理论正确性、运行稳定性和操作简便性。更多还原

【Abstract】 This thesis has accomplished the development of a CAD system concerning the design of railway-use land & subgrade drainage (YDPSCAD) , which is a fourth subsystem used in the design of railway-line following the plane-designed system, the vertical section-designed system and the transection-designed system in the integration of survey and design of the railway.This system is developed under the operation system named Windows NT 4.0. Its developing flat roof is Visual C++ 6.0, now one of the most perfect developing flat roofs based on Windows. Its gragh-supported environment is AutoCAD 2000, a CAD system composed of ploting and developing. The programming languge is ObjectARX 2000, the most powerful one used for secondary development in the development tools of AutoCAD 2000. This system can run under all Windows conditions.This thesis also expounds the key technics in the course of development work in detail, such as the technics of OOP, integration of gragh and digital and dynamic control about the mark, etc. There exists an excellent feature obviously in the system, namely, good computer-person interaction function and perfect system of automatic inspection. From the preparation of the data to the input of the data of the dialog box, command conducting, eventually results’ output, there are corresponding prompt informations.At the end of the thesis, there is a vivid example provided. The No.l Survey and Design Academy of the Railway Department has successfully carried out about hundreds of tasks of the design of railway-use land & subgrade drainage with the help of the system, which is proved valid in theory, stable in operation and easy in conduction.更多还原