| 离散点数据自动绘制等深线方法探究 |
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| 引用本文： | 周艳霞,方强飞.离散点数据自动绘制等深线方法探究[J].海洋测绘,2012(2):58-60. |
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| 作者姓名： | 周艳霞 方强飞 |
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| 作者单位： | 海军出版社,天津300450 |
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| 摘 要： | 提出用反距离插值法将多波束离散数据点插值成规则格网DEM数据,再根据海图生产规范自动绘制不等间距相对光滑的DEM。将自动绘制的等深线与一般软件生成的等深线、海底地形图成果等深线进行比较分析得出：文中方法绘制的等深线相比以前有较大改善且更符合地形,可作为人工绘制的参考线。
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| 关 键 词： | 多波束测深 空间差值 等深线 自动绘制 |
Research on Methods of Automatic Drawing DepthContour with Discrete Data Points |
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| ZHOU Yanxi,FANG Qiangfei.Research on Methods of Automatic Drawing DepthContour with Discrete Data Points[J].Hydrographic Surveying and Charting,2012(2):58-60. |
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| Authors: | ZHOU Yanxi FANG Qiangfei |
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| Institution: | (Navy Press,Tianjin 300450,China) |
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| Abstract: | We use multibeam discrete data points to construct grid DEM with the method of inverse distance interpolation.Then,we draw nonuniform relatively smooth DEM automatically under the chart production standard.At the end of this paper,we compare the contour which is drawn automatically with what is made by the general software and by the results of the undersea topographic map and analyse it,which comes to a conclusion that the depth contour which is drawn in this paper is greatly improved and can greatly accord with terrain than before.It can be used as the reference line for manual drawing. |
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| Keywords: | multibeam echosounding space differential depth contour automatic drawing |
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