| 立体透视变换矩阵中 P.Q.R 的透视几何意义 |
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| 引用本文： | 任征. 立体透视变换矩阵中 P.Q.R 的透视几何意义[J]. 陕西理工学院学报(自然科学版), 1998, 0(2) |
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| 作者姓名： | 任征 |
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| 作者单位： | 西安公路交通大学 |
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| 摘 要： | 在计算机绘图中的立体透视变换矩阵中经常使用透视变换参数Ｐ．Ｑ．Ｒ，它们取值直接影响体的透视效果。本文对Ｐ．Ｑ．Ｒ的透视几何意义进行了分析证明，这对在选择Ｐ．Ｑ．Ｒ来绘制透视图时有一定的帮助。
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| 关 键 词： | 透视变换；视点；灭点；齐次坐标 |
The Perspective Geometry Meaning of P.Q.R in Three-Dimensional Perspective Matrix |
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| Ren Zheng. The Perspective Geometry Meaning of P.Q.R in Three-Dimensional Perspective Matrix[J]. Journal of Shananxi University of Technology(Natural Science Edition), 1998, 0(2) |
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| Authors: | Ren Zheng |
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| Affiliation: | Xi'an Highway Univercity Xi'an 710064 |
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| Abstract: | The perspective parameters P.Q.R are very often used in the matrix of perspective transformation in the Computer Graphics. Their values have direct effect on three-dimensional perspect. The paper analyises and proves the perspective geometry meaning of the P.Q.R. |
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| Keywords: | Perspective transformation Vanishing point Viewing point Homogeneous coordinate |
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