Civil 3d中求路线交点

对于scs类型的曲线，

交点坐标貌似没有直接给出，

现有api给出的是s或者c的交点，

scs交点坐标需要自己计算才能得到。

在autodesk论坛中看到了这篇>>帖子<<，

代码抄录如下：

vb.net代码：

Private Function GetSCSPI(scs As AlignmentSCS) As Point2d
            Using line1 As New Line2d(scs.SpiralIn.StartPoint, scs.SpiralIn.SPIPoint)
                Using line2 As New Line2d(scs.SpiralOut.EndPoint, scs.SpiralOut.SPIPoint)
                    Dim intersection() As Point2d = line1.IntersectWith(line2)
                    Return intersection(0)
                End Using
            End Using
End Function

转换成c#的代码：

private Point2d GetSCSPI(AlignmentSCS scs)
{
    using (Line2d line1 = new Line2d(scs.SpiralIn.StartPoint, scs.SpiralIn.SPIPoint))
    {
        using (Line2d line2 = new Line2d(scs.SpiralOut.EndPoint, scs.SpiralOut.SPIPoint))
        {
            Point2d[] intersection = line1.IntersectWith(line2);
            return intersection[0];
        }
    }
}