顶点

Map-building, there are several plans to choose, you can choose to graph traversal method, which the storage structure of the plan is based on vertex adjacency matrix of the array and stored the.

详细说明：图的建立，有多种的图可以选择，也可以选择图的遍历方法，里面的图的存储结构是以顶点数组和邻接矩阵的方式存储的。

We study a polygon representation composed by the vertex angles and ratios of adjacent edge lengths, which is invariant to geometric transformations such as translation, rotation and scaling. The polygon is globally represented by a scale-invariant intrinsic matrix.

提出了由顶点转角和相邻边长比例构成的多边形伸缩内在量表示的方法，多边形从整体上由一个伸缩内在矩阵来表示，该表示方法具有平移、旋转和伸缩等几何不变性。

The adjacent matrix is a matrix, which, if and only if vertex and adjacent.

的邻接矩阵是一个的矩阵，其中，当且仅当顶点和邻接。

If every vertex of V is adjacent to some vertex in S.

如果V的每个顶点都和S中某点相邻。

A nondegenerate simplex is one for which the set of edges adjacent to any vertex in the simplex forms a basis for the space.

一个非退化的单纯形是与任意顶点相连的边集组成空间的基。

Nelder and Mead also resolved the question of what to do if none of the steps tried bring acceptable improvement by adding a shrink step: when all else fails, reduce the lengths of the edges adjacent to the current best vertex by half, as is also illustrated in Fig.

Nelder 和 Mead同时也解决了如果增加一个缩小步长没有一个尝试步长是可接受的改进怎么办的问题：如果都失败，将与当前最好顶点相连的边减半，正如图3所示。

Then we used Kriging interpolation technique in geological statistics to establish geological graphics model,and presented the method of searching known sample points in the region to be interpolated adjacent to triangle mesh vertex with"polygon"expanding,and the method of dealing with the impact of boundary and faultage on interpolated results by distance revolving.

首先给出限制条件下的区域Delaunay剖分原理；其次采用了地质统计学中的克里金插值技术建立图件模型，提出了"多边形"扩张法搜索待插值三角网格顶点邻域内的已知采样点，以"距离环绕法"处理了断层和边界对插值结果造成的影响；结合地质图件自动建立过程；最后给出了一个具体的应用实例。

At last,we use these feature regions to construct affine invariant s,based on affine geometry invariant property.

利用仿射区域划分获取一组扩展质心集合作为图像特征点集；求解特征点集的凸包，根据扩展质心的性质将凸包顶点均匀组合成若干特征区域；利用仿射几何性质构造了有效的仿射不变量。

This paper first summarizes recent researches on this topic, and then proposes some methods for curve modeling with cubic algebraic curve based on pure geometric constraints that involve control points, tangent directions and curvatures.

然后提出了一种基于几何约束的三次代数曲线的插值方法，该方法完全通过几何量如控制顶点、切线和曲率来控制三次代数曲线的形状，使得对三次代数曲线的编辑与对三次 B-样条曲线的编辑一样灵活方便。

And the induced normal curvature along the normal of contact line between the worm and the planet is obtained. The algebraic expression of the induced normal curvature at the top point of the ball-tooth is given.

另外，对行星轮与环面蜗杆沿接触线法线方向的诱导法曲率进行了求解和分析，给出了诱导法曲率在球齿齿面顶点时的代数式显式表达。

In the United States, chronic alcoholism and hepatitis C are the most common ones.

在美国，慢性酒精中毒，肝炎是最常见的。

If you have any questions, you can contact me anytime.

如果有任何问题，你可以随时联系我。