Surfer网格文件到GOCAD面文件转换方法研究

Research on the Conversion Method of Surfer Grid File to GOCAD Surface File

工程地球物理勘探的成果图件常以Surfer网格文件的形式保存,而常用的地质建模软件GOCAD没有导入Surfer网格文件的接口,需研究出配套的文件转换方法。本文基于GOCAD平台,深入研究了Surfer网格文件和GOCAD面文件的数据格式,分析了其数据存储的特点,将Surfer网格文件转换为GOCAD软件可读取的面文件,通过C#语言编程开发了专用转换程序,实现了Surfer网格文件向GOCAD面文件的便捷转换,通过GOCAD软件读取面文件实现了Surfer网格文件的快速三维显示。结果表明,提出的网格文件向面文件的转换方法,实现了基于GOCAD的三维地质建模环境的快速地球物理勘探成果数据导入,提高了三维地质建模的效率。因此,将网格文件转换为GOCAD面文件的方式是一种高效实现既有地球物理勘探成果在GOCAD中显示的方法。

The maps of engineering geophysical exploration results are usually saved in the form of Surfer grid files,but the commonly used geological modeling software GOCAD has no interface to import Surfer grid files,so it is necessary to study the corresponding file conversion method.Based on GOCAD platform,this paper probes detailedly into the data format of Surfer grid file and GOCAD surface file.Upon a systematic analyisis of the characteristics of data storage,this paper converts Surfer grid file into surface file accessible by GOCAD software,and develops a special conversion program in C#programming language,realizing the convenient conversion of Surfer grid files to GOCAD surface files and the rapid 3D display of Surfer grid files by GOCAD software.The conversion method of grid file to plane file proposed in this paper realizes the rapid data import of geophysical exploration results in GOCAD based 3D geological modeling environment,and improves the efficiency of 3D geological modeling.This paper shows that the method of converting grid files into GOCAD surface files is efficient in displaying existing geophysical exploration results in GOCAD.