本文对AutoCAD中扩展图元数据（XDATA）的数据格式进行了详细分析，介绍了扩展图元数据在AutoCAD中添加、访问和使用的方法，讨论了扩展数据在地籍测量中的具体应用，对从事地籍测量工作的技术人员有一定的借鉴作用。%In this paper, the AutoCAD extended entity data (XDATA) data format is analyzed in detail. The method to add, visit and use XDATA in AutoCAD is introduced. The specific application of extended data in cadastral surveying is discussed, which provides reference for cadastral surveying workers.
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