用两点c＃计算角度

Question

我有一条线（DrawLine-Event）带点（a，b）（c，d），现在我想计算它的角度，但我不知道怎么做。

我试过这样：

double atan = ((d - b) / c - a)) * Math.PI / 180;
double solution = Math.Atan(atan);
int angle = Convert.ToInt32(Math.Round(solution * 180 / Math.PI));

Answer 1

您可以使用Vector.AngleBetween Method获取角度

private Double angleBetweenExample()
{
    Vector vector1 = new Vector(20, 30);
    Vector vector2 = new Vector(45, 70);
    Double angleBetween;

    // angleBetween is approximately equal to 0.9548
    angleBetween = Vector.AngleBetween(vector1, vector2);

    return angleBetween;

}