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中文摘要：
道路边桩是用来控制道路宽度的一个道路要素，边桩分为道路征地红线边桩和实际道路设计宽度边桩。在内业处理过程中需要将这些边桩及其相关的边桩距离、中桩绘制在设计图上。为了将这些数据按照成果提交要求快速准确绘制，本文提出了一套绘制算法，并鉴于设计数据格式为AutoCAD格式，利用ObjectArx组件技术对算法编程实现，实现了批量边桩绘制和单个边桩绘制。算法在某铁路改造工程项目中得到了很好的应用，大大提高了工作效率。
英文摘要：
Roadside piles that include the land expropriation and road design piles are used to control the road width. During indoor work, these piles and other related data must he mapped in the design map. In order to draw the data conforming to some qualifieations fast and accurately, a series of mapping techniques were brought forward in the paper. Because the design data were made by AutoCAD, these mapping techniques were coded on C# and ObjectArx, which could map either a batch of piles or a single pile at a time. These mapping techniques were employed in a railroad-modified project with high efficiency.
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