//求得电场的垂直分量
//调用方法：thisEfield.GetVerticalE(k,l)
public Plural GetVerticalE(SpectVector k, SpectVector l) //k为射线传播方向，l为反射中的反射面的法向量或绕射中的与棱平行的向量
{
SpectVector n = k.CrossMultiplied(l).GetNormalizationVector();
Plural p = n.DotMultiplied(this);
return(p);
}
//求得电场的水平分量
//调用方法：thisEfield.GetVerticalE(k,l)
public Plural GetHorizonalE(SpectVector k, SpectVector l)
{
SpectVector n = k.CrossMultiplied(l); //入射面的法向量
SpectVector m = k.CrossMultiplied(n).GetNormalizationVector();
Plural p = m.DotMultiplied(this);
return(p);
}
/// <summary>
///获得直线与无限平面的交点
/// </summary>
/// <param viewFace="p">平面</param>
/// <returns>直线与三角面的交点</returns>
public Point GetCrossPointBetweenStraightLineAndInfiniteFace(Face viewFace)
{
SpectVector vector = viewFace.NormalVector.GetNormalizationVector();//归一化
SpectVector rayVector = this.RayVector.GetNormalizationVector();
double temp = rayVector.DotMultiplied(vector);
if (Math.Abs(temp) < 0.0000001)//如果向量和平面平行则返回null
{
return(null);
}
else
{
double TriD = vector.a * viewFace.Vertices[0].X + vector.b * viewFace.Vertices[0].Y + vector.c * viewFace.Vertices[0].Z;
double temp1 = vector.a * this.Origin.X + vector.b * this.Origin.Y + vector.c * this.Origin.Z - TriD;
double t = -temp1 / temp;
Point tempPoint = new Point(rayVector.a * t + this.Origin.X, rayVector.b * t + this.Origin.Y, rayVector.c * t + this.Origin.Z);
return(tempPoint);
}
}