Abstract

Creation of a GIS based corporate database of Geological and Geophysical maps is a necessity of any hydrocarbon exploration company. However, many GIS databases do not directly accept the G&G maps which are normally generated and preserved as CGM (Computer Graphics Metafile) files. A procedure has been devised to covert these CGM plot files into ASCII files for portability of the G&G maps into the GIS Database. Even after the conversion to ASCII files, another important step need to be implemented before the data can be input to the GIS since the coordinates decoded from the CGM files are