Research on free-form surface reconstruction based on quadric surface and self-organized system;
基于二次曲面和自组织系统的自由曲面重构研究
Auto Drawing of quadric surface and its length calculation;
在AutoCAD中实现二次曲面交线的自动绘制及其长度的计算
The study on circle section of quadric surface by the characteristic root;
利用特征根研究二次曲面的圆截面问题
Virtual Experimental Design of the Quadratic Surface Base on Computer;
二次曲面绘制的计算机虚拟实验设计
Determine line of intersection of quadratic surface revolution and surface of revolution;
二次曲面间交线极限点的确定
The circle line of several kinds of common quadratic surfaces;
几种常见二次曲面的圆截线
The cross iteration method on the intersection of two conicoids in CAD/CAM system;
CAD/CAM中二次曲面求交的交叉迭代法
Study on resolving anaberrational points of conicoid;
求解二次曲面消像差点的研究
We use least squre method to form conicoid mathematic model and fit the point cloud which has been grouped by octree subdivision method.
应用最小二乘法建立二次曲面的数学模型,对于已用八叉树分组的点云数据实现隐函数拟合。
Inner point and exterior point of a quadric and its plane of the type of contact plane;
二次曲面的内、外点及切平面型平面
The article gives a way by which a quadratic curve is processed by a linkage,and then a quadric can be formed by revolving the quadratic curve as a generatrix around the axis.
提出一种利用能够生成二次曲线的连杆机构作辅助装置 ,将生成的二次曲线作为母线绕轴线旋转而形成旋转二次曲面的方法 ,从理论上进行了推导 ,并通过实例说明了该方法的应用 。
All quadrilateral mesh automatic generation for regular quadric surfaces based on Auto CAD AME;
基于Auto CAD AME的规则二次曲面壳的全四边形网格自动剖分
Represent Quadric Surfaces Using NURBS and Calculate the Control Vertecs and Weights;
二次曲面的NURBS表示及控制顶点和权因子的计算
Through study,the property is found out that planes cutting edgewise quadric curve and quadric intersections from the quadric surfaces become the harmonic division.
文中采用了射影几何的方法 ,证明了画法几何中关于两个二次曲面相交的著名的复切定理和蒙日定理 ,通过研究得出了周切线平面和交线平面成调和分割的性质 ,同时还得出了处于复切的二次曲面必存在相公切的二次曲面的性
This paper investigated 3D representation characteristic of superquadrics and the analysis of fitting superquadric parametric model using L-M algorithm.
针对在三维重构过程中用L-M(Levenberg-Marquardt)方法求解超二次曲面参数拟合问题的不足,提出了用粒子群优化算法来进行超二次曲面参数拟合的新方法。
tangent-cone of a qualric
二次曲面的切线锥面
conjugate diametral plane
共轭径面 -二次曲面的
conjugate diametral planes of a quadric
二次曲面的共轭径面
conjugate lines in a quadric
二次曲面的共轭直线
bifocal chord of a quadric
二次曲面的两焦点弦
We call this surface the stress quadric.
我们称这个曲面为应力二次曲面。
the curve structure and projective structure of the normal quadric surface;
常态二次曲面的曲线结构和射影结构
Inner point and exterior point of a quadric and its plane of the type of contact plane;
二次曲面的内、外点及切平面型平面
Geometric construction of the tangent plane at a poin on the quadratic surface;
二次曲面上一点处切平面的几何画法
The Elementary Method to Common Quadric Surface Equation;
一般二次曲面切平面方程的初等求法
The Existence of Plane of a Circular Section of the Second Order Surface;
与二次曲面有交线圆的平面的存在性
Research and Realization of Smooth Blending of Two Quadratic Surfaces with Quadratic Surfaces;
用二次曲面光滑拼接两个二次曲面的研究与实现
Impossibility of Quadric Surfaces as C Mesh Interpolating Surfaces;
二次曲面作为网格插值曲面的不可能性
The Classification of Quadratic Surfaces in Three-Dimensional Minkowski Space;
三维Minkowski空间中二次曲面的分类
Virtual Experimental Design of the Quadratic Surface Base on Computer;
二次曲面绘制的计算机虚拟实验设计
The Standardization of Quadric Surface Equation and Its Graphic Essence;
二次曲面方程的标准化及其图形实质
Analysis of OpenGL Texture Mapping Onto Quadric Surfaces and Its Application
OpenGL二次曲面纹理映射技术分析与应用
Reconstruction of Superquadric 3D Models Based on Superquadric Projection Rim
基于投影边缘的超二次曲面三维建模