| 曲面斜截体椭圆投影成圆的几何条件及其应用 |
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| 引用本文： | 杨忠贤,武荣,王凯.曲面斜截体椭圆投影成圆的几何条件及其应用[J].杨凌职业技术学院学报,2003,2(4):22-24. |
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| 作者姓名： | 杨忠贤 武荣 王凯 |
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| 作者单位： | 杨凌职业技术学院,陕西,杨凌,712100 |
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| 摘 要： | 鉴于曲面回转体斜截后生成的椭圆交线，不利于作图和应用，提出转化其投影成圆的几何条件，从而为求诸如贯穿点和相贯线等，从方法上提供新的尝试。
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| 关 键 词： | 曲面斜截体 椭圆投影 圆 几何条件 作图方法 圆柱 圆锥 |
| 文章编号： | 1671-9131(2003)04-0022-03 |
Specific Geometrical Conditions and Application on the Projected Circle of an Oblique Elliptic Intersection Line on a Surface of Body-tilted Cut |
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| Abstract: | Because it is disadvantageous to draw and apply the elliptic intersectional line formed by obliquely cut in a rotating surface, the paper established geometrical conditions by which the projected line of the elliptic intersection can be transformed into a specific circle and provided a new method to find out the intersectional line and intersection point etc. |
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| Keywords: | surface body-tilted cut ellipse circle |
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