Directrix

Based on the geometry characteristics of Bertrand surfaces , the complicated surface conjugation issue can be discussed with their directrix line .

基于白川德曲面的几何特征，将复杂的曲面共轭问题归结到准线上来讨论。

The pity is that the first auxiliary directrix after modification is generally expressed in an algebraic form , because of the complexity of the vectorial expression .

遗憾的是，由于其矩阵表达式有些复杂，一般都将修改后的第一辅助准线表示为代数形式。

A Method Based on Machine Vision to Obtain a Guidance Directrix

基于机器视觉技术获取导航基准线的方法

A Curve Guidance Directrix Algorithm Based on Least Squares Method

基于最小二乘法的曲线导航线提取算法

A Guidance Directrix Approach to Agriculture AGV Based on Feature Point Selection

基于特征点选择的农用AGV导航线提取算法

Visually directed reaching The guidance signal of vision guidance system consists of the lateral deviation and the orientation deviation between the guidance directrix and the vehicle axis .

视觉引导伸向视觉引导伸向视觉导航系统的导航信息是指导航线与车辆轴线的侧向位移偏差和角度偏著。

Let α be a cone with vertex M and directrix c. We denote the integral of the vertex angle of x by ω _M ( c ) .

令α是一个以M为顶点、以c为准线的一个锥面，我们用ωM（c）表示α的顶点整角。

In order to examine the consistency of the conjugate conditions , the structure conditions reflecting transmission forms and the characteristics of the directrix are presented , and the differential expression of Bertrand conjugation is also set up .

为了研究共轭条件的相容性，给出了反映各类共轭传动形式与准线特征的结构条件，并在此基础上建立共轭的微分关系式。

Impact Analysis of Soft Ground Incline Displacement on the Dates of Settlement Field Monitoring The guidance signal of vision guidance system consists of the lateral deviation and the orientation deviation between the guidance directrix and the vehicle axis .

软土地基侧向位移对现场沉降监测值的影响分析视觉导航系统的导航信息是指导航线与车辆轴线的侧向位移偏差和角度偏著。

The offset of the blade section is taken as the directrix and the ruled driven surface for the rough machining of the blade of the integral impeller is constructed . With the ruled surface , the rough machining tool path can be gained .

以叶片截面偏置线为准线，得到整体叶轮叶片粗加工刀轨直纹驱动面，最终计算得到整体叶轮叶片粗加工刀轨。