The Specialized Drawing Library Of Engineering Design On The Basis Of AutoCAD

The basic mentality of designing and method , under which AutoCAD can be developed secondarily byAutoLisp language , are analysed ,combined the technological question met in the course in the specializeddrawing library development . The specialized key technology main points , which are found in the course ofdrawing library system development , are explained in detail through in a large amount of the instances . Withpredecessors' summary , my own views and solutions are put forward creatively . The parameter design inAutoCAD is strengthen , which reflects " Computer Aid Design " function instead of " Computer AidDrawing " function of CAD fully . In order to making the project designer not to fear CAD , the humanizedmutual design of interface has been strengthened . This function has used DCL (Dialogue control languages)inlaid inside in AutoCAD, and made the design rder and the parameter modification in the dialogues followthe real procedure of engineering design totally . All operations ,which includes data saving , seaching ,changing , maintain , ect , are coped with through utilize ready-made DBMS (data base managementsystem ) , in common use , and the data conection with CAD . The Specialized Engineering Drawing Libraryis really set up in the in the engineering design practice and is used flexibly by designers .