三维辅助的CAD管线入库与检查系统的实现  

3D assisted CAD Pipelines Input and Check System

作　　者：付海龙[1] 周奎[1] 王光昇 曲超[1] 廉光伟 赵虎川 

机构地区：[1]天津市测绘院,天津300381

出　　处：《城市勘测》2014年第6期91-95,共5页Urban Geotechnical Investigation & Surveying

摘　　要：在传统的测绘工作中,管线的数据入库与检查是在二维图形系统中完成的。随着技术的发展,这种模式已经显示出了在空间关系表达上的弊端,因此本文探讨了在三维空间中对管线进行辅助质量检查的模式。文中的系统采用了二三维结合的方法,即在二维CAD模块中进行管线的绘制及属性录入工作,并在三维视图中同步显示三维管线。同时开发了管线碰撞检测功能,可以迅速发现数据库中的空间逻辑错误,并通过三维的方式直观的提醒用户。该系统通过实际运用,三维显示速度快,检查结果准确,为管线数据质量的提高提供了有效的工具。In the traditional surveying task,the pipelines input and check was done in the 2D graphics system. But with the development of technology,the drawback of such mode has arise with respect to the pipelines＇ spatial relations.Therefore this paper did research in a new mode where the check of pipelines was also done in 3D. The system in this paper has combined the 2D and 3D modules. The pipelines＇ drawing and information input was done in the CAD,and the pipeline models were shown in the 3D module synchronously. The pipelines＇ collision check was also introduced to find the spatial errors in the database quickly and intuitively. In the practical use of this system,the speed of the 3D pipe rendering was fast and the check results were accurate,which helped to improve the quality of the pipelines database.

关 键 词：CAD管线 三维管线模型 动态建模 同步编辑 碰撞检测 

分 类 号：P208.1[天文地球—地图制图学与地理信息工程]