水平体视图图幅分析及计算作图法

Analysis of mappable unit in horizontal stereogram and its studies on calculating drawing method

通过分析体视视野在水平画面上的视野椭圆半轴a、b与视距Sz及主视线偏角θ之间的关系,研究水平体视图最大图幅。同时,依据体视投影原理,推导出水平体视图图形位似系数K_T及右体视投影坐标(x_(al),y_(al))与左体视投影坐标(x_(ar),y_(ar)),并编写出水平体视图计算作图法框图,为计算机绘制水平体现图提供了计算方法。

By the analysis of relation between half axis a, b of view ellipse of stereoscopic vision on horizontal drawing and viewing distance Sz, deflection angle of main line of vision 9 , we can study maximum mappable unit of horizontal stereogram. At the same time, according to the principle of stereoprojection, we deduce homothetic coefficient KT of horizontal stereogram and right coordinate of stereoprojection (xal,yal) and left of that (xar,yar). We compile skeleton of calculating drawing method of horizontal stereogram providing calculating method of computer drawing of horizontal stereogram.