added kappa conversion for bernina

2020-12-17 16:03:11 +01:00
parent a5f7137577
commit d408819dcd
1 changed files with 2 additions and 0 deletions
@@ -13,6 +13,7 @@ def you2kappa(eta, chi, phi, kappa_angle=60, degrees=True, bernina_kappa=True):
    
    if bernina_kappa:
        eta_k = eta_k - np.pi/2
+        kappa = - kappa
        phi_k = -phi_k + np.pi/2
    if degrees:
        eta_k, kappa, phi_k = np.rad2deg([eta_k, kappa, phi_k])
@@ -26,6 +27,7 @@ def kappa2you(eta_k, kappa, phi_k, kappa_angle=60, degrees=True, bernina_kappa=T
        )
    if bernina_kappa:    
        eta_k = eta_k + np.pi / 2 
+        kappa = - kappa
        phi_k = -phi_k + np.pi / 2 
    delta_angle = np.arctan(np.tan(kappa / 2) * np.cos(kappa_angle))
    eta = eta_k - delta_angle