基于DXF的AutoCAD点对象信息提取与数据转换
he information extraction and data transformation of AutoCAD point object based on DXF file
utoCAD图形数据是地理信息系统重要的数据源，研究AutoCAD数据向地理信息系统数据的格式转换对实现数据共享有重要意义。本文以AutoCAD数字地形图中点对象空间信息和属性信息的提取为研究重点，分析了AutoCAD的DXF文件格式以及MapInfo的MIF、MID文件格式，探讨了在AutoCAD向MapInfo的数据转换过程中高程点的高程值赋值问题，提出了基于DXF的点对象信息提取与数据转换的技术方案，最后通过编写程序，对工程项目中的CAD地形图数据进行了批量转换。实践证明，在少量人工质量控制的情况下，该方案能够实现AutoCAD图形数据向地理信息系统空间数据的高效率的自动转换。
he AutoCAD graphics data is an important GIS data source. It is very important to study the transformation from AutoCAD data to GIS data. This article focuses on the information extraction and transformation of the elevation point. With the analyses of the DXF file format and the MIF\\\\MID file format, this article discussed the problems of the evaluation of the elevation point in the AutoCAD relief map and gave a solution of the information extraction and data transformation of AutoCAD point object based on DXF file. At last, with the batch transformation program, hundreds of AutoCAD maps were transformed to the MapInfo. Practice has proved that, with a little manual quality control, this solution can achieve the automatic transformation from AutoCAD data to GIS data with high efficiency.
夏达忠、商胜波
工程设计、工程测绘计算技术、计算机技术遥感技术
XF，数据转换，信息提取，高程点赋值
XF data transformation information extraction the evaluation of elevation point
夏达忠,商胜波.基于DXF的AutoCAD点对象信息提取与数据转换[EB/OL].(2008-02-29)[2025-08-02].http://www.paper.edu.cn/releasepaper/content/200802-397.点此复制
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