/// <summary>
/// Transforms the plane with a given matrix. The matrix is assumed
/// to be the inverse transpose of the transformation.
/// The returned plane also gets normalized.
/// </summary>
public Plane3d Transformed(M44d trafo)
{
var p = trafo.Transform(Coefficients);
return(new Plane3d(p.XYZ, -p.W).Normalized);
}
