The calculation method of reverse NURBS node vector is improved.
改进了反算nurbs节点矢量的计算方法。
But surface generation requests through a series of curves, and it finally produces control vertex and node vector satisfied with surface request.
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。
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.
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。
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.
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。
You create a pure vector-based drawing here and render a line here from source node to destination node.
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。
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.
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。
Construct the skeleton tree′s adjacency matrix, then define a Topology Signature Vector and compute the distance of matching node pair by the difference of the TSV.
构造骨架树邻接矩阵并给出拓扑标记向量的定义，用拓扑标记向量之差的二范数作为两个骨架树匹配节点对的距离；
The second is that different node has different time-delay vector, and elements of each node also have different time delays.
第二种是不同的结点有不同的时延向量且每个结点的分量也有不同的时延。
The image is converted into vector and sketch node coordinate is withdrawn automatically by computer, two dimension the point gather the matrix is formed.
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 full transformation method deals with each boundary constraint node, and for stiff matrices and displacement vector, using operator transformation, relative operator calculation is performed.
全变换方法用于处理每一边界约束点，对刚度矩阵和位移矢量作相应的算子运算。
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。
Objective To put forward an improved gradient vector flow (GVF) snake model based on the edge flow for segmentation of medical ultrasonic images of the lymph node.
目的提出一种基于边缘流的梯度矢量流（gradientvectorflow，GVF）形变模型的图像分割方法，并用于淋巴结超声图像的分割。
Objective To put forward an improved gradient vector flow (GVF) snake model based on the edge flow for segmentation of medical ultrasonic images of the lymph node.
目的提出一种基于边缘流的梯度矢量流（gradientvectorflow，GVF）形变模型的图像分割方法，并用于淋巴结超声图像的分割。
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