由三维模型到二维投影  

New Discussion about Two Dimensional Projection Drawings Coming from Three Dimensional Model

作　　者：邱荣茂[1] 王大鸣[1] 

机构地区：[1]石家庄铁道学院机械工程分院,河北石家庄050043

出　　处：《河北工业科技》2003年第5期20-23,49,共5页Hebei Journal of Industrial Science and Technology

摘　　要：利用AutoCAD的三维模型,在AutoCAD的图纸布局中设置浮动视口,将三维模型向不同的投影面进行投影,然后使用Solprof,Solview,Soldraw命令提取三维模型的投影轮廓线并做适当的编辑操作,可以生成三维模型的二维投影图———视图与剖视图。用这种方法获得的二维投影图与三维模型之间存在着内在的联系,所以投影正确,避免了直接作二维投影图时容易产生多余或遗漏图线的现象,具有作图效率高、不易产生投影错误的优点。Making use of three dimensional model created by means of AutoCAD, setting float viewports in paper layout of AutoCAD, projecting three dimensional model onto different projective planes,picking up the projective outlines of the three dimensional model by means of command 'solprof','solview','soldraw',and then making certain modification to the outlines, we can create the two dimensional projection drawings of three dimensional model--views and section views.The two dimensional projection drawings we get in this way are of inherent connection with three dimension model of entity, so the projection is right.It avoids the phenomenon of the occurrence of unwanted lines or the missing of drawing lings due to drafting directly two dimensional drawings.This method possesses the advantage of higher drafting efficiency and fewer errors in views.

关 键 词：图纸布局 视口 三维模型 视图 剖视图 二维投影图 AUTOCAD 

分 类 号：TP391.72[自动化与计算机技术—计算机应用技术]