common tangent

A new method to draw conical curves by the common tangent circle

圆锥曲线的公切圆作图法

On this basis, a practical simple way to construct by the conical curves the common tangent circle is presented.

在此基础上，提出了简便、实用的圆锥曲线公切圆作图法。

On regular highway reconnaissance work, the tangent offset method is the most common one on highway route center stake layout, but this method is limited because of route tangent as baseline for offset.

在公路常规勘测设计工作中，切线支距法是一种常用的中桩放样方法，但该方法以路线切线为基线，使用条件受到限制。

We put forward in this article the method of applying common tangent circle drawing to ellipses.

提出应用公切圆法画椭圆,可不必推平行线和多次加长圆规,只需用直线尺作图,且理论上误差为零.

Calculation of leaf spring of varying stiffness with common tangent method

渐变刚度钢板弹簧的共切线计算法

In order to calculate the intensity of general-stress in tri-axis test in geotechnical investigation, the author uses cartesian geometry principle to derivate calculation functions of common tangent points coordinates of every circle by the common tangent line. Especially, the slope tangent line is calculated directly.

工程勘察三轴试验的总应力强度指标的计算，运用解析几何原理导出任意两个应力圆公切线切点坐标计算公式，尤其是直接计算切线斜率。

An optimal algorithm for finding the internal common tangent of two simple planar polygons is proposed.

提出了一种确定两简单平面多边形内公切线的最优算法.

Finding the common tangent of two circular cone curves with the communal axis of symmetry

求具有公共对称轴线的二圆锥曲线的公切线

The system not only makes data processing and data sampling entirely automatic but also succeeds in a series of difficult problems, such as calculation of the area of hysteresis loop and other irregular cure, and common tangent of Mohrs circle.

改造后的系统不仅使数据采集、处理过程全部自动化，且成功地完成了对实验数据后续处理；滞回圈等非规则曲线面积及莫尔圆公切线求解等一系列复杂计算。

Enlarged Drawing of Elliptical Head by Common Tangent Circle Drawing

椭圆形冲头放大图的公切圆作图法

Calculation of common tangent method to varying stiffness leaf spring system with bending cover supporting

曲面支承形式变刚度板簧系统的共切线计算法