| 地质建模中的B样条曲面拟合 |
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| 引用本文： | 陈效奕,张彝.地质建模中的B样条曲面拟合[J].宁波大学学报(理工版),2007,20(2):147-150. |
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| 作者姓名： | 陈效奕 张彝 |
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| 作者单位： | 1. 宁波大学,信息科学与工程学院,浙江,宁波,315211
2. 宁波大学,图书馆,浙江,宁波,315211 |
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| 摘 要： | Pigel和Tiller提出了简明、灵活的B样条曲面拟合方法.本文在Pigel和Tiller的方法的基础上,提出了适用于地质建模的基于重采样的B样条曲面拟合方法.该方法首先用重心坐标对原始的数据点进行重采样,然后对重采样得到的数据点进行拟合.拟合的误差可以通过修改控制顶点的个数来控制.结果表明:拟合得到的B样条曲面是光顺的.
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| 关 键 词： | B样条曲面 参数化 重心坐标 重采样 拟合 地质建模 曲面拟合 Modeling 样条曲面 结果 控制顶点 修改 误差 数据 重心坐标 重采样 面拟合方法 |
| 文章编号： | 1001-5132（2007）02-0147-04 |
| 修稿时间： | 2006-12-18 |
B-spline Surface Fitting in Geological Modeling |
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| CHEN Xiao-yi,ZHANG Yi.B-spline Surface Fitting in Geological Modeling[J].Journal of Ningbo University(Natural Science and Engineering Edition),2007,20(2):147-150. |
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| Authors: | CHEN Xiao-yi ZHANG Yi |
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| Institution: | 1.Faculty of Information Science and Engineering, Ningbo University, Ningbo 315211, China; 2.Library of Ningbo University, Ningbo 315211, China |
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| Abstract: | A concise and intuitive B-spline surface fitting method has been proposed by Pigel and Tiller. A new B-spline surface fitting method is proposed based on geological method. At first the original data points are resampled using barycentric coordinates, followed by fitting the resampled data points. The error of fitting can be manipulated by modifying the number of control points. The experimental results demonstrate that the resulting B-spline surface is adequately smooth. |
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| Keywords: | b-spline surface parameterization barycentric coordinates resample fit |
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