一种图形透视投影矩阵的推导及编程实现  

The Derivation of a Perspective Projection Matrix and Its Programming Implementation

作　　者：王渊[1] 龙华[1] 邵玉斌[1] 李灵玥[1] 

机构地区：[1]昆明理工大学信息工程与自动化学院,云南昆明650500

出　　处：《甘肃科学学报》2011年第4期127-129,共3页Journal of Gansu Sciences

基　　金：云南省科技厅基金项目(2009CA027)

摘　　要：透视投影为三维图形显示的基础,在此基础上提出了一种基于透视投影矩阵的数学模型.可方便地将空间三维坐标转换为透视投影坐标,并实时地在屏幕上展现出来.并以三维数据的透视投影为例,显示了经过该透视变换后的透视图,验证了该方法的有效性.Perspective projection is the foundation of the 3d graphic display.In this contest perspective projection matrix based on the mathematical model is discussed.Using this matrix,we can transform three-dimensional coordinate into perspective projection coordinate conveniently and display on the screen in real-time.Finally,with the example of 3d perspective projection data,we have shown the rendering of this perspective transformation and verified the validity of this method.

关 键 词：三维可视化 图形变换 透视投影 

分 类 号：TP34[自动化与计算机技术—计算机系统结构]