How to calculate azimuth angle Phi of refelcted ray in 3d

hello! How I can identify azimuth angle Phi of refelcted angle in 3d . First initial phi angle was given, and further code has changed and now need to caclulate azimuth angle. Here is my code

Thank you in advance

Best regrads, Aknur

Answer 1

[Vishnu]

The azimuth angle, denoted by Phi, can be calculated using the given code. The calculation of Phi depends on the plane number (stored in the variable plane).

% Please note that the code assumes the angles are in degrees.
ThetaBar = Theta0;
if plane == 1
    PhiBar = 90 + solidIncidentAngle;
elseif plane == 2
    PhiBar = 90 + solidIncidentAngle;
elseif plane == 3
    PhiBar = 90 + solidIncidentAngle;
elseif plane == 4
    PhiBar = -90 + solidIncidentAngle;
elseif plane == 5
    PhiBar = 180 + solidIncidentAngle;
else
    PhiBar = 180 + solidIncidentAngle;
end

In this code snippet, based on the value of plane, the corresponding ThetaBar and PhiBar values are assigned. ThetaBar represents the polar angle, and PhiBar represents the azimuth angle.