| 用局部拟合法自动绘制等值线图 |
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| 引用本文： | 彭宣茂.用局部拟合法自动绘制等值线图[J].河海大学学报(自然科学版),1989,17(2):72-78. |
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| 作者姓名： | 彭宣茂 |
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| 作者单位： | 河海大学工程力学系 |
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| 摘 要： | 本文介绍了在任意四边形或三角形单元内自动绘制等值线图的局部拟合法。该方法利用各单元节点上已知的物理量值直接构造局部分片曲面。全方位搜索等值点集合。根据等值点处导数值的正负号控制等值线在网格内的游动。
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| 关 键 词： | 拟合法 等值线图 自动绘制 |
Automatic Contour Plotting by Local Approximation |
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| Peng Xuanmao.Automatic Contour Plotting by Local Approximation[J].Journal of Hohai University (Natural Sciences ),1989,17(2):72-78. |
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| Authors: | Peng Xuanmao |
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| Institution: | Peng Xuanmao |
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| Abstract: | A method of contour plotting on both 4-node quadrilateral elements and 3-node triangular elements is presented.The intersection points of contour on the element boundary are determined by element node 2-dimensional interpolation.The problem of multi-connexion between intersection points on the quadrilateral element boundary is solved by observing the sign of derivative at these points.This method is proved to be effective by several practical applications. |
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| Keywords: | approximation surface element contour |
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