| 波尔克定理的计算机化 |
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| 引用本文： | 袁长东.波尔克定理的计算机化[J].工程图学学报,1992(2):56-60. |
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| 作者姓名： | 袁长东 |
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| 作者单位： | 北京动力经济学院 |
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| 摘 要： | 计算机图学中轴测变换的典型算法是旋转加投影。方法可行,但有旋转角与轴测效果关系不够简明和正、斜轴测得分开讨论的两点不足。本文用图解法推出波尔克定理及轴测投射方向的表达式,使计算机图学中的轴测变换及自动消隐获得一种直观、简洁的算法,并给出本算法的BASIC子程序。
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| 关 键 词： | 波尔克定理 轴测 电子计算机 |
COMPUTERIZATION OF POHILK THEOREM |
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| Yuan Changdong Beijing Power Engineering & Economics Institute.COMPUTERIZATION OF POHILK THEOREM[J].Journal of Engineering Graphics,1992(2):56-60. |
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| Authors: | Yuan Changdong Beijing Power Engineering & Economics Institute |
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| Affiliation: | Yuan Changdong Beijing Power Engineering & Economics Institute |
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| Abstract: | In CG,the typical algorithm of axonometric transformation is rotation and projection.This
method has two faults,one is that the relation between rotation angle and axonometric result is
not simple enough,and the other that orthographic and oblique axonometric has to discussed
separately.
In this aiticle,with the help of Graphical method,the expressions of Pohlke principle and the
projection direction of axonometrie are derived,and a straightforward and simple algorithm is ob-
tained for axonometric transformation and autoremoval of hidden lines in CG.BASIC subprogram
of the algorithm was given as well. |
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| Keywords: | Pohlke principle axonometric axis projection direction of axonometric cellection property |
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