Design of catenary data-driven based on ObjectARX

Though ObjectARX was widely applicated in the secondary development technology of AutoCAD,the data driven technology was lack of use in program development.By using data driven technology,the data and procedures could be separated.When the data was changed,the result of program was changed too.By combining with the typical examples of engineering application for the high speed railway catenary,it was implemented the function of data driven,automatic drawing and automatic charting,discussed the methods of using data driven technology in ObjectARX program to provide a solution to the main technical difficulties in the secondary development technology of AutoCAD.Then it would provide technical reference and thought of development for the ObjectARX program.