方案选定后，重新确定样条函数的参数值，通过参数值的变化，准确表达线形中的直线段、圆弧段、缓和曲线段等。

Then selecting parameters again, we can express the alignment's line, arc, transition curves through the variations of parameters.

youdao

方案选定后，重新确定样条函数的参数值，通过参数值的变化，准确表达线形中的直线段、圆弧段、缓和曲线段等。

Then selecting parameters again, we can express the alignment's line, arc, transition curves through the variations of parameters.

youdao