三角点

The spacing triangulation was achieved by restricting the angle between two adjacent triangle's normals, which can decrease or increase the data efficiently, varying with the surface's curvatures, added to the optimizing local triangulation, and uniform and smooth triangulation are obtained.

该方法从插值曲面的形状变化来考虑，根据空间离散点曲面的曲率变化有效地剔除或增加离散点，实现了离散点曲面的疏密三角网格划分。

Besides, Delaunay triangulation and the deletion of some edges help identify the topology of the scattered point set.

此外，该算法通过删除数据点集的Delaunay三角化网格中长度大于采样密度的边，自动识别出数据点集的拓扑结构。

Then using a feasible triangulation method to build up the topology of one set of scan data.

利用射线交点记数法将重叠处的点从另一视的数据集中分离出来，提出了将多值数据点自适应滤除的新方法，最后基于外接圆规则重新三角化。

Delaunay triangulation has been used to partition the selected extrema, then replaces the pixels that not contained in the Delaunay polygon through symmetry principle, which can restrain the variance phenomenon that appeared in the cubic spline interpolation.

利用Delaunay三角剖分方法对选取的极值点进行分划，对不包含在Delaunay多边形内的边界像素采用对称处理，抑制了3次样条插值过程中边界点变异现象。

The method is based on the principle of triangle inequality with the use of the third side and both sides of the ratio of the size to determine the Corner to feature point and its two adjacent feature points formed by the angle between two tangent linear and the third triangle on both sides and edges with another feature of the ratio as a variable.

该方法根据三角不等式原理利用第三边与另外两边之和的比值大小来确定角点，以特征点和它相邻的两个特征点所形成的两条直线的夹角正切值以及三角形第三边与另两边和的比值作为特征不变量。

At the same time, when we generate TIN, we must project the spatial points to the plane and every point can't overlap each other. So we also must generate TIN dividually then merge them into the whole skull's DSM.

同时由于在构建三角网的时候，需要将空间点投影到二维平面上进行构网，这就必须保证空间点投影到平面上的位置彼此是不重叠的，因而也需要将颅骨模型进行分块构网。

The triangular mesh is defined by points cloud and topologic relation among the points.

离散三角网格是由离散点云以及点之间的拓扑关系定义的。

The forming process of triangulated HP model is presented in this paper.

针对HP的正方格点模型存在能量计算缺陷，本文给出一种模型上的修正，引入了三角化的HP格点模型。

In addition, the Chinese CRT TV screen points of light, depending on the magnetic field changes in the tilt, So with the need to control the current ramp, triangle wave, This is the same square wave can not ignore the role of function generator is generally automatically generate square wave, sine wave, saw tooth wave and triangular wave, etc. ladder circuit voltage waveform or equipment.

此外，如在电视机中显像管荧光屏上的光点，是靠磁场变化进行偏转的，所以需要要用锯齿波电流来控制，对于三角波，方波同样有这不可忽视的作用而函数发生器是指一般能自动产生方波、正弦波、三角波以及锯齿波阶梯波等电压波形的电路或仪器。

During the TIN generating, it puts emphasis on analysis and treatment discrete data using Delaunay triangular net.

在不规则三角网TIN的生成中，重点采用Delaunay三角网分析和处理离散点的数据。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。