栅格

The point cloud was divided twice and distributed to 3D cell grids, then ultimate space, internal space, external space were decided for each grid. With the help of each point s sphere space, K-nearest neighbors of the point can be found quickly.

首先，采用二次划分的方法将点云划分到相应的立方体小栅格中；然后，为采样点所在的立方体小栅格确定最终子空间、内子空间和外子空间，结合采样点的球空间，就能很快确定该采样点的K邻域的搜索范围。

Firstly, image is decomposed into two serials, which are predicted and updated by two-order Neville filter on rectangle and quincunx grid by turns.

首先将图像分解为两个序列，用2阶Neville滤波器构造预测和更新算子，对两个序列以矩形栅格和梅花形栅格的格式进行交替预测和更新；再以各个波段的方差作为融合的特征，进行特征级第二代小波加权融合，最后对图像进行第二代小波重构。

In this paper, the generation and organizition method of 3D raster data are deeply studied.

本文针对GIS的基本数据类型——三维栅格数据，重点在三维栅格数据的生成和组织方面进行了深入研究。

Comparing the isoline revivification, detailing, section analysis and 3-d images of the gridding result, from which indicated that the gridding project of hydrologic map is reasonable in this thesis.

6通过对栅格化成果进行等值线还原、加密、剖面分析和三维图像比较分析，结果表明，本文提出的水文等值线图栅格化方案是合理的。

Then we used "Slope" function under "Grid Analysis" to obtain slope angle of each pixel area.

栅格值大于40的，就意味着大于40度的坡度角可以使用'栅格计算'过滤。

Vector to raster: Inside point diffuse method, diffuse from internal seeds within polygon to neighbor points, as far as to the boundary of polygon; Pluralism integral arithmetic, according to the close boundary of polygon, makes uncertain point calculate pluralism integral; Radial and scanning arithmetic, from a uncertain point which located outside of the figure to draw radial, according to the junction of radial and polygon to judge the internal and outside relationship; Boundary algebra filling, a vector convert to raster arithmetic which based on integral thought, suit for polygon vector convert which recorded topological relationship.

矢量转栅格：内部点扩散法，即由多边形内部种子点向周围邻点扩散，直至到达各边界为止；复数积分算法，即由待判别点对多边形的封闭边界计算复数积分，来判断两者关系；射线算法和扫描算法，即由图外某点向待判点引射线，通过射线与多边形边界交点数来判断内外关系；边界代数算法，是一种基于积分思想的矢量转栅格算法，适合于记

According to the current status of the research of 3D spatial data model,a grid representation of 3D vector model is presented,which represents the 3D spatial structure by recording the key points couple on the 2D grid.

根据三维空间数据模型的研究现状，提出了一种三维矢量模型的栅格表示方法，该方法采用在二维栅格上记录关键点对的方法来表示三维空间结构，能够表达空间中存在复杂断层的情况。

In the key step of this method (the process of contour tracking), the paper puts forward the concept of grid right-correlation flag to determine the initial segment of tracking curve. In the tracking procedure, the trend of subsequent points are determined by the combinatorial values of neighborhood cells, and a method is designed to avoid contours crossing. In order to obtain high-quality contour line, it adopts it adopts the linear interpolative method to show a contour chart of accurate localization and better visual effect.

在该方法的关键过程中，提出栅格右关联标志的概念，并据此确定初始追踪段；追踪过程中依据邻域栅格值的组合特征确定后续点的走向，设计了避免等值线交叉的处理措施；为获得高质量的等值线图形，采用线性插值方法，得到准确定位和视觉效果较好的等值线图形。

Powergrid Usage of 'Serpentis Small Railgun Battery' is now 81000MW, lower than the powergrid usage of 'Small Railgun Battery'.

天使小型磁轨炮台的能量栅格占用量降为81000MW，低于小型磁轨炮台的能量栅格占用量。

Use a raster catalog for massive image repositories, retaining overlaps between datasets, managing time series data, and when differences among adjoining images prevent mosaicking.

需要保留了数据集之间相重叠的部分，管理时间系列数据，以及当禁止镶嵌的邻接图像之间可以存在差异时，可以使用栅格目录用来建立巨型的栅格仓库

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。