公路卵形曲线任意点坐标和切线方位角的计算方法

Computing Method of Coordinate and Tangent Orientation Angle of Arbitrary Points on Highway Oval Curve

针对公路卵形曲线段上任意点坐标和过该点的切线方位角的计算、测设问题,结合工程实例,将卵形曲线转化为完整缓和曲线的一部分,进而推导了简洁、实用、易懂的计算公式.此种计算公式在应用计算机编程计算方面也比较实用.

It is difficult and complex to survey and calculate the coordinate and tangent orientation angle of arbitrary points on highway oval curve. Contacting with the engineering example, this text translates the oval curve to part of the transition curve and derivates the simple and applied computing expressions to solve this question consequently. The computing expressions can be also used in the computer programme.