The Design Plan And Realization Of Graphic Data Exchange

The CAD technology has been used widely in enterprises and scientific researches,and it has been the practical production capability .As an universal software of drawing,AutoCAD has been used widely in every walk of life,and during the process of using,the pictures which drawed by the AutoCAD system need to be changed with other softwares.The transferring and changing of data in different CAD systems has benn the key role in increasing the efficiency of using CAD.With the development of CAD technology,it has been a great problem faced to every walk of life in the exchange of CAD datas.First of all, this text will introduce the basic background,the existed formats and standard of data, the ways and technologies in realizing data exchange,and the requirement of JhCAD system in data exchanging.There also will be knowledge related to my research both here and abroad and the meaning of my paper.Then,there will be a deep research and exposition in the realization of data exchange. During the development of the data standard, there are several typical ones such as IGES,DXF and STEP,there will be a deep analysis and research.From the exsited problems in data exchanging and others,there will be a realization in designing the total plan of data exchanging.Based on all of them above, there will be a concrete plan in the next step.Based on the technologies of DWGdirect and Object-oriented, I will design and program the procedures, this part is the most important in my paper. From the feature and the structure of files, there will be a systemic research both in the theoretical and practical. At last, the data exchanging of graph will work successfully on the platform of JhCAD.Through the debugging and testing,it has been proved successful and practical.