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- quasi normal vectors 拟正规向量
- Vertex format includes a vertex normal vector. 顶点格式包括顶点法线向量。
- Returns the normal vector to the ground. 返回地面的标准矢量。
- The normal vector may not be a null vector. 法向量不能是空向量。
- Each face in a mesh has a perpendicular normal vector. 纹理中每个面都有一个垂直的法向量。
- Secondly, the initial normal vector will be improved by conicoid least square. 然后,采用最小二乘进行二次曲面拟合进行修正。
- Also we can made the edge sharp by duplicating the vertex normal vectors at any intersection of faces. 同样我们也可以通过加倍顶点法向量来锐化边界。
- Therefore, an in depth study of the numeric theory for normal vectors at discretional boundary is essential. 等参元边界法向量的数值计算方法，是基于石油套管复杂力边界法向量理论研究和工程需要提出的。
- The reflection vector is computed from the input vertex position and normal vector. 反射向量是从输入顶点位置和法线向量计算出来的。
- Consequently, we are going to calculate the normal vectors on the surface and the duplicate integrality instead of the second surface integrality. 最后对其它形式的光滑有向曲面也进行了类似研究，都可直接转化为二重积分。
- A study is given to the necessary conditions for construction of normal vector wave functions in homogeneous stratified media. 研究了在均匀分层介质中构成标准矢量波函数的必要条件。
- Secondly, introduce the angle information formed by the normal vectors of adjacent area so as to distinguish polyhedral box shaped parts, revolving parts and free-form surfaces. 引入点所在邻域法向量的夹角信息，进一步区分多面体盒形件、回转类零件或自由曲面信息。
- The necessary conditions for construction of normal vector wave functions in inhomogeneous media with graded refractive index are studied. 研究了在渐变折射率介质中构成标准矢量波函数的必要条件。
- Nor: Uses the direction of the normal vector as coordinates. This is very useful when creating certain special effects (see below). 使用法向量的方向作为坐标。这在创建某些特效时非常有用(见下文)。
- By controlling the worktable to rotate in x-y plane, the superposition between the rotary surface of the grinding wheel and the normal vector of the curve was realized. 该方法是在传统的曲线磨床的基础上，增加一个可以使工件相对于砂轮偏转的数控回转轴，实现砂轮对工件轮廓的法向跟踪磨削。
- Based on Kirov's Theorem,applying many-knot spline functions,one kind of curve or surface modeling method with tangent vectors or normal vectors,by which some local shapes of curves or surfaces can be controlled,has been introduced. 基于Kirov定理,利用多结点样条函数,研究一类带有可控参数的曲线曲面造型方法。
- Using local base surface parameterization, a parametric quadric surface approximation method is used to estimate the local surface curvature properties of scattered points based on propagating normal vector direction. 首先，计算各点的邻近点集，选取合适的局部基础曲面，把邻近点集投影到相应的局部基础曲面。
- First, the normal vector of the surface was calculated using the differential geometry based on the features of an involute and a cycloid as a reference of radius of the ball milling cutter. 由于铣刀每完成一个行程后，还要进行轮廓插补，采用一种新的渐开线轮廓插补方法，并将插补轨迹换算成球头铣刀的刀心轨迹。
- PCA model was set up based on the normal history data of the system to detect the sensor faults by comparing the projection on the residual subspace to which the real measurement vector and normal vector were projected. 主成分分析法根据系统正常的历史数据建立数理统计模型，通过传感器实际测量数据与正常数据在故障子空间投影的比较，对传感器的故障进行在线检测。
- For each potential instability mode,a critical point on the boundary of the security region was found,in which the normal vector was used to form the hyperplane to simulate the boundary of the s. 对每一种潜在的失稳模式,搜索其动态安全域边界上的一个点,根据临界点处的法向来求解用于模拟动态安全域边界的超平面。
