Automatic Generation System Based On Objectarx Figure Coordinate Table

Layout drawing in the design phase of construction drawing was studied in the Automatic Production System of Coordinates table of Layout drawing. It targets at four specified types in the AutoCAD drawing such as pipeline, railroad, road and building, sovles theirs localization coordinates, the position parameter and automatic or semiautomatic extraction of other assistance parameters in the system and automatic coordinates table in the end.Actual difficult problems in process of coordinates table production was mainly resolved in this paper. According to users'specified demand, specialized CAD system was developed on the basis of AutoCAD and object-oriented ObjectARX. Such difficult problems like management of extended data and automatic production of table in AutoCAD were resolved. Firstly, present development of CAD technologies and further development kits ObjectARX were introduced. Secondly, five modules which include system general design, the coordinates extracting system, the coordinates data management, the automatic production of tables and the system interface design were mainly introduced. While the design process and algorithm realization of each module were discussed in detail. The modular design such as the technical foundation, obtaining of the entity coordinates data, extending data's storage and management, automatic production technology of coordinates table which were based on drawing block were emphatically studied.These functions defined in design have been completely actualized in this system and the automatic production of coordinates table was successfully finished while the automatic production efficiency and quality of coordinates table was greatly enhanced in this system. All actual testing, including coding testing, software function testing, accuracy testing, reliability testing, efficiency testing, multi-user testing and pressure testing, were carried out in this system and the anticipated object has been achieved.Great practicality was one of the great characteristics of this paper. Actual difficult problems have been solved by the scientific and technological theory. This paper applies the science and technology to the production and has important practical significance.