红外谱图DXF数据文件的压缩和修改

将红外光谱图输入计算机可便于谱图的分析，建库和检索，该文提出，在ＡｕｔｏＣＡＤ软件支持下，用数字化仪将红外谱图输入计算机，谱图以ＤＷＧ图形压缩文件存储，将ＤＷＧ文件转换为ＤＸＦ数据文件能使用户程序直接调用谱图以实现ＤＯＳ下的显示，为减少ＤＸＦ文件的内存占用，该文分析了ＤＸＦ文件的结构，并编制程序对ＤＸＦ文件进行压缩和修改，提高了数据处理的效率和效果，为类似谱图的处理提供了新方法。

DXF Data File Processing in Infrared Spectrogram

It is convenient for infrar spectrograms to input the computer to analyze, build up database, and index. In this paper, infrared spectrograms are input with digitizer and AutoCAD software, and become DWG files. The user program can use the files directly to display under DOS, if the DWG files are changed into DXF files. To reduce the memory, the structures of the files are analyzed. The program is compiled to abstract and modify the files, thus improving the effect and efficiency of data processing. A new method is provided for similar drawings in this paper.