正轴测投影图直观效果优化条件的研究

正轴测投影图具有直观性好、形象逼真等优点,其立体感效果与物体相对于投影面的位置有关系,选择合适的视角可以增强图形的立体感、提高图形的可读性。通过对正轴测投影图中显示物体的可见面数、面积大小和面积变化率等参数的定量研究和数据分析,获得影响物体立体感效果的变化规律,使用CAD内嵌的VisualLISP语言和VB软件编辑人机交互系统,为用正轴测投影图更有效地表达物体提供了依据。

Optimizing axonometric projection of an object on stereoscopic effect

The axonometric drawing has the advantages of good visualization and lifelike image. The stereoscopic effects of the axonometric drawing are relative to the position of the geometric object. The stereoscopic effects and improve the readability of graphics can be enhanced with the proper angle of view. According to the number of the visible planes in the drawing, and their size and change rate in area, influence acting on the stereoscopic effects can easily be revealed. By editing a human-computer interaction system using VisualLISP language which embedded in AutoCAD Software and VB Software, a basis is finally set on which axonometric projection can more efficiently express objects.