| 抛物样条算法在等值线平滑中的应用 |
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| 引用本文： | 于雪涛,奚砚涛,朱金灿,牛坤,于书媛. 抛物样条算法在等值线平滑中的应用[J]. 城市勘测, 2010, 0(5): 135-137 |
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| 作者姓名： | 于雪涛 奚砚涛 朱金灿 牛坤 于书媛 |
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| 作者单位： | 中国矿业大学资源与地球科学学院,江苏,徐州,221008;航天星图科技,北京,有限公司,北京,100029 |
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| 基金项目： | 中国矿业大学青年科研基金，中国矿业大学资源与地球科学学院科研基金 |
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| 摘 要： | 在深入研究分段抛物样条算法的基础之上,采用Visual Basic. NET2005开发语言,最终设计并实现了基于该算法的闭合和不闭合的平滑抛物样条曲线绘制方法。并将该算法应用到雨量等值线的平滑中,取得了较为理想的效果。并采用均匀添加型值点的方式,使最终等值线的绘制更加科学化,避免相交情况的出现。
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| 关 键 词： | 抛物样条算法 等值线 闭曲线 开曲线 |
Application of Parabola-Spline Algorithm in Smoothing Contour |
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| Yu XueTao,Xi YanTao,Zhu JinCan,Niu Kun,Yu ShuYuan. Application of Parabola-Spline Algorithm in Smoothing Contour[J]. Urban Geotechnical Investigation & Surveying, 2010, 0(5): 135-137 |
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| Authors: | Yu XueTao Xi YanTao Zhu JinCan Niu Kun Yu ShuYuan |
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| Affiliation: | 1.School of Resources and Earth Science,China University of Mining ＆ Technology,Xuzhou 221008,China;2.ImageInfo Company Limited,Beijing 100029,China) |
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| Abstract: | Based on studying the parabola-spline Algorithm fully,this paper completed designing and releasing the algorithm of drawing close and unclose parabola-spline curves,by using Visual Basic.NET2005.This Algorithm has been applied to smooth rain-contour lines,and obtained the ideal effect.Besides,it made the contour-drawing more Scientific to add data points,avoiding the phenomenon that contour lines intersect with others. |
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| Keywords: | parabola-spline algorithm contours close curve unclose curve |
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