| 圆点曲线的计算机图形处理 |
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| 引用本文： | 郭朝勇.圆点曲线的计算机图形处理[J].军械工程学院学报,1998(3). |
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| 作者姓名： | 郭朝勇 |
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| 作者单位： | 军械工程学院机械设计与制图教研室 石家庄 |
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| 摘 要： | 根据运动杆的4个或5个相邻位置准确设计四杆机构的关键是求解圆点曲线。根据射影几何的原理,利用几何分析的方法建立了圆点曲线的参数表达式,分析了圆点曲线的变化规律,提出了一种圆点曲线的计算机图形处理方法。该方法较之几何法精度高,较之解析法求解方便、直观性强。给出了该方法在四杆机构设计中的应用示例。
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| 关 键 词： | 圆点曲线 四杆机构 机构综合 计算机图形处理 |
A METHOD OF COMPUTER DRAWING ON CENTRE POINT CURVES |
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| Guo Chaoyong.A METHOD OF COMPUTER DRAWING ON CENTRE POINT CURVES[J].Journal of Ordnance Engineering College,1998(3). |
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| Authors: | Guo Chaoyong |
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| Institution: | Teaching and Research Section of Machinery Design and Drawing |
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| Abstract: | The key of accurate design of four - link mechanisms is to solve centre - point curves depending on kindmatic linkages four or five positions. According to prqjective geometry principle, the parameter equations of centre - point curves are built by using geometric analytical methods. The changing regular pattern of centre- point curves is discussed. A method for solving centre - point curves is introduced depending on computer drawing. The method is more precise than geometric method, easier in solving and better in visualization than analytic method. Finally, an example of computer drawing method is given in four- link mechanism design. |
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| Keywords: | centre-point curves four-link mechanism mechanism synthesis computer drawing |
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