autocad里，可以批量把同一类型的点数据提取并写入到dat数据文件里，文本也可以，对于cad 里非标准的高程数据可以标准化处理，以作为三维分析的基础数据使用-in autocad , you can batch the same type of point data extraction and data written to the dat file, text can be, for the cad elevation in non-standard data can be standardized, as the basis of three-dimensional analysis of the use of data