| 一道画法几何题的解答 |
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| 引用本文： | 谢强. 一道画法几何题的解答[J]. 南昌高专学报, 1995, 0(3): 6-8 |
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| 作者姓名： | 谢强 |
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| 作者单位： | 南昌高等专科学校工程系，南昌330009 |
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| 摘 要： | 本文首先给出了一道画法几何题，在根据题意进行空间分析的基础上，运用轨迹、直角三角形法求线段实长、直线与平面垂直性质以及投影变换等知识，确定作图步骤，对这道题作出解答。
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| 关 键 词： | 画法几何题 空间分析 轨迹法 直角三角形 投影变换 作图步骤 |
The Key to a Problem in Projective Geometry |
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| Xie Qiang Enginerring Department,Nanchang Junior College,Nanchang. The Key to a Problem in Projective Geometry[J]. Journal of Nanchang Junior College, 1995, 0(3): 6-8 |
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| Authors: | Xie Qiang Enginerring Department Nanchang Junior College Nanchang |
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| Affiliation: | Xie Qiang Enginerring Department,Nanchang Junior College,Nanchang 33009 |
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| Abstract: | The thesis first came up with a problem in projective geometry.Based onmaking space analyses in the light of the subject meaning,applying such knowledge as locus,evaluation of exact length of line segment by the means of right triangle algorithm,characteristics of straight line and plane meeting at right angles,and projective variation,theauthor ascertained the steps to make the geometric figure and solved the problem. |
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| Keywords: | a problem in projective geometry locus projective variation space analyses |
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