Research On Method For The Parsing And Conversion Of CGM

CGM is an industry standard of POSC (Petrotechnical Open Standards Consortium), is the most important output form in petroleum Exploration and Production (E&P) in the world. As an international and industry standard, CGM is adopted more and more wide in the petroleum Exploration and Production in China. However,because of the high profession, its parsing, browse and editor technique has been a key topic that we are developing the system of petroleum Exploration and Production.This text studied the ISO/ IEC 8632(Part1~4) of international standard of CGM. According to the modern module technique development principle, we discussed the development of the technique of analysis for CGM format based on the technique of Microsoft .NET and Carnac.NET. End, we provided a flexible component to parse CGM and carried out the browser of CGM.The international standard of ISO/ IEC ruled a set of standards, having nothing to do with equipments the phrasing and the phrase method chemical element of the definition sketch. It is divided into 4 parts. The first part is the function description; the other three parts is the three coding method, namely the character list code, the binary system code and clear statement code.The article point introduces the parsing of the CGM document binary system code for browse and editor method based on Carnac.NET. According to the requirement of the system of petroleum Exploration and Production, we studied the display of Chinese characters, the conversion of earth coordination, implements the conversion to bitmap. In the end, the article implements the software to browse and convert through the parsing CGM component, verifying the method of analyze and conversion.