改进了反算nurbs节点矢量的计算方法。
The calculation method of reverse NURBS node vector is improved.
文中根据曲线曲面型值点，分别用四种参数化方法构造节点矢量，利用NURBS方法反算控制点。
In this paper, the control points are calculated based on the curve or surface's data points and the knot vector which is calculated with four kinds of parameterization by the method of NURBS.
而蒙面曲面的生成则要求生成的曲面通过一系列的曲线，它最终生成曲面所需要的控制顶点和相应的节点矢量。
But surface generation requests through a series of curves, and it finally produces control vertex and node vector satisfied with surface request.
矢量数据要求的存储要比栅格数据少得多，因为弧节点列表简化并减少了表示地图中包含的特征所需的数据。
Vector data require far less storage than raster data because arc node lists simplify and reduce the data required to make sense of the features contained in the map.
您创建了一个纯粹基于矢量的绘图，并且显示了一条从源节点到目标节点的连线。
You create a pure vector-based drawing here and render a line here from source node to destination node.
这个清单的核心是defnode宏，它获取一个节点类型和一个字段名矢量，并创建一个构造函数来创建该类型的映射。
The core of the listing is the defnode macro that takes a node type and a vector of field names, and creates a constructor function for creating maps of that type.
计算量采用修正标量位，这样在同样的节点数下相对于矢量位它可以减少联立方程的阶数。
The modified scalar potential is used to reduce the order of the coupled equations in the comparison with the vector potential under the same node number.
将图像转换为矢量图形，由计算机提取图形节点坐标形成二维点集矩阵。
The image is converted into vector and sketch node coordinate is withdrawn automatically by computer, two dimension the point gather the matrix is formed.
利用计算几何的相关算法，把矢量数据的节点和边界线作为TIN网三角形的端点和边，对TIN网的局部进行三角化。
Utilizing related algorithms of computational geometry to triangulate TIN partly to make node and line as vertex and side of triangles.
文中针对表示波浪面的数据集的特性，采用了一种简单的节点法矢量算法。
According to the characteristic of the wave field data, a simple algorithm is used to calculate the normal vector at the nodes.
并通过建立数理模型，数值求解，得到各个离散节点上的速度矢量。
The mathematical model was established and it was calculated by numerical method, the speed vectors on each dispersed point was obtained.
矢量积节点计算两个向量的数目积。
The Vector Product node computes the Dot Product of two vectors.
矢量积节点计算两个向量的数目积。
The Vector Product node computes the Dot Product of two vectors.
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