| Summary: | 碩士 === 大同大學 === 機械工程研究所 === 92 === This thesis uses Visual LISP programming language and the multi-page and multi-layer screen-driven method to develop of mainframe system for auto drafting under the AutoCAD drafting software. With the parameter formula, the program can create the 2D projection views of the components automatically. By this system, AutoCAD users can do their two-dimensional drafting job of mechanical standard part more accurately and efficiently.
The screen-driven regions are designed to have the functions of multi-page, multi-layer, and any （X * Y） number of driving blocks on each driving page. We use the Visual LISP programming language with the parametric approach to finish standard part automatically. The user can better the drafting speed by using it, and all they have to do is to pick the driving block.
The interface of the drafting system differs from the pull-down menu and the icons which can only provide incomplete exposition in the common Windows application software interface. This system uses the whole drawing area of AutoCAD as the screen-driven region to show the driven page with slides, which leads the user by clear figures and exposition during the drafting process.
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