quadric surface

The expression of a tangent cone family with one parameter about a quadric surface is discussed.

讨论了二阶曲面的单参数切锥族的表示方法,导出了单参数切锥族的包络面的方程.

Skewed symmetry detection of quadric surface solids under orthographic projection exploration of CAI in engineering drawing& to analyse the trend of intersecting lines of two stereoscopic cambers

正交投影二次曲面立体图的斜置对称面检测（英文）工程图学中计算机辅助教学探索&两曲面立体相交趋势分析

A new method is offered to extract quadric surface based measured points for reverse engineering.

为逆向工程中基于测量点的二次曲面提取提供了一种新的方法.

With the Lagrange multiplier method, the minimum distance of the center of a circle and a quadric surface was provided and the tangency condition of curve and surface was given.

利用拉格朗日乘子法求解二次曲线和二次曲面之间的最小距离，给出了曲线与曲面相切的条件。

Application of shepard fitting method based on quadric surface in GPS leveling

基于二次曲面的Shepard拟合法在GPS水准中的应用

Based on study of relationship between the average quadric error and the surface curvature, a variable resolution surface reconstruction algorithm was proposed.

在研究平均二次误差与曲面曲率关系的基础上，提出了变分辨率的曲面重建算法。

Several Properties about the Tangent Plane of the Family of Quadric Surface

一类二次曲面族的切平面的一些性质

Extracting quadric surface from measured data is an important problem in reverse engineering of mechanical parts.

在机械产品的逆向工程中,针对测量数据提取常用二次曲面是非常重要的.

Then, we introduce some basic concepts of mesh surface, mesh simplification, and we also present the surface simplification algorithm using quadric error metrics ( QEM) in detail.

然后介绍了网格曲面和网格简化的一些基本概念，并详细介绍了基于二次误差度量的边折叠网格简化算法。

An algorithm of feature surface recognition based on quadric surface fitting and geometry property was presented.

提出了基于二次曲面拟合误差分析和几何属性分析的特征曲面识别算法.