An Algorithm for Extracting Contour Lines Based on Interval Tree from Grid DEM

1、

The accuracy of flood area is mostly dependent on the contour interval of map, accuracy of digitizing map, accuracy of DEM, and interval of GRID, detecting resolution of pixels.

对于采用本方法计算淹没区，准确性受地形图等高距大小、数字化采集精度、数字地面模型（DEM）高程精度以及格网间隔大小、像素探测分辨率等因素的影响。

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2、

Such structural features can be identified by contouring directly on either top or bottom surface of the reservoir with a contour interval of1-5m.

直接以油层顶面（或底面）为准绘制小等高线间距（1&5米）构造图，可显示出微型构造特征。

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3、

Due to these facts, the elimination of checkerboard patterns, the acceptance or rejection of intermediate elements and the contour extraction of the resultant topology are three main problems during the topology extraction process for structures and compliant mechanisms.

并指出棋盘格的消除、中间单元的取舍和拓扑图的轮廓提取是结构和柔顺机构拓扑图提取过程中的3个主要问题。

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4、

Now the main navigation means of such vehicles still adopts inertial navigation, and intermediate navigation adopts terrain contour matching method.

该类飞行器目前仍采用惯性导航为主要的导航手段，中制导采用地形匹配。

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5、

A Two-directional Linear Intermediate Contour Interpolation Algorithm

一种双向层间轮廓线线性插值方法

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6、

Intermediate Contour Interpolation for Computed Altas Surface Reconstruction of 3-D Human Brain

三维人脑计算机图谱表面重建的层间轮廓线插值

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7、

Intermediate contour interpolation algorithm for CT image

一种用于CT片层间轮廓线插值的算法

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8、

The Study on Intermediate Contour Matching in CT Tumour Image by Means of Chain Code

基于链码的肿瘤CT图象层间轮廓线最佳点匹配技术的研究

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9、

Linear Interpolation Algorithm Based on the Intermediate Contour of Intracerebral Brain Hemorrhage CT Image

基于颅内出血CT图像层间轮廓线的线性插值算法

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10、

Utilizing the model and yield mapping software, we have gotten a raw data map, grid map, contour map and histogram chart for a winter wheat yield.

利用该模型和专用产量图生成软件绘制了一块小麦产量数据点图、栅格图、等值线图。

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11、

The dissertation proposes a method of distributed jamming system against SAR based on contour curve chart, which could measure jammed scope of SAR in azimuth dimension.

利用等轮廓曲线图得到对SAR的方位向干扰范围，从而提出了对SAR分布式干扰布站的方法。

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12、

Using a cloud chart or a contour line chart to observe a space or flat data field of the FEM is one of the most valid methods.

以云图或等值线对空间或平面数据场进行可视化是有限元后处理最有效的方法之一。

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13、

Contour chart will be plotted throng the precision gradienter measure the raft plank height mark and settlement from the difference.

通过精密水准仪测量筏板标高，由变化值得到沉降，绘制等值线图。

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14、

Through sensibility analysis and objective function contour chart analysis the research of functional property of trapezoidal mechanism is further improved.

同时在灵敏度分析和对目标函数等值线图进行分析的基础上，指出了进一步提高梯形机构工作性能的研究方向。

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15、

Data files of physical reflected surface depth contour and data files of borehole in GMS are interrelated by the point positions. The high performance method of constructing virtual boreholes for models of stratigraphy under the platform of GMS was developed by this means.

物性反射层等深线数据文件与GMS中钻孔数据文件通过点的空间坐标相互关联，可高效地构建GMS中地层实体建模所需的虚拟钻孔。

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16、

The depth contour is the boundaries of regions of all points with equal depth, all contours form a collection of nested polygons, and the center of the deepest contour is called the tukey median.

深度曲线就是所有具有相同深度值的点形成区域的边界，所有的深度曲线形成了一个嵌套式的多边形集合，而最深的深度曲线的中心被称为中值。

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17、

A comparison with the drilling result shows the reliability of the depth contour map for the top surface of the granite batholith.

与钻探结果对比表明，该花岗岩基顶面深度图结果可靠。

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18、

Research on Sea Floor Three-Dimensional Vision Based on Illuminated Depth Contour and Color Gradients Shallow water mapping of estuaries

基于明暗等深线与分层设色的海底地形立体表示方法研究绘制海湾浅水深度图

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19、

Drawing River-bed's Depth Contour by the Quadrilateral Method

四边形法绘制水下河床等深线图

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20、

All three basins are enclosed by the 1900m depth contour.

三个海盆都被1900米的等深线所圈闭。

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