7 + xrays source fix allong the :math:`\vec{x}` direction (1, 0, 0)
8 + 4 axes for the sample
10 + **mu** : rotation around the :math:`-\vec{y}` direction (0, -1, 0)
11 + **omega** : rotation around the :math:`\vec{z}` direction (0, 0, 1)
12 + **chi** : rotating around the :math:`\vec{x}` direction (1, 0, 0)
13 + **phi** : rotating around the :math:`\vec{z}` direction (0, 0, 1)
15 + 3 axis for the detector
17 + **mu** : rotation around the :math:`-\vec{y}` direction (0, -1, 0)
18 + **delta** : rotation around the :math:`\vec{z}` direction (0, 0, 1)
19 + **gamma** : rotation around the :math:`-\vec{y}` direction (0, -1, 0)
27 PseudoAxes provided : **h**, **k** and **l**
29 + mode **zaxis + alpha-fixed**
31 + Axes : **"omega"**, **"gamma"**, **"delta"**
32 + Parameters : No parameter
34 + mode **zaxis + beta-fixed**
36 + Axes : **"mu"**, **"omega"**, **"delta"**
37 + Parameters : No parameter
39 + mode **zaxis + alpha=beta**
41 + Axes : **"mu"**, **"omega"**, **"gamma"**, **"delta"**
42 + Parameters : No parameter
44 This mode add the ``mu = gamma`` constrain.
46 + mode **4-circles bissector_horizontal**
48 + Axes: **"omega"**, **"chi"**, **"phi"**, **"delta"**
49 + Parameters : No parameter
51 This mode add the bissector constrain ``delta = 2 * omega``. In this
52 mode the eulerian **"chi"** circle containt the vector of diffusion
53 :math:`\vec{Q}`. So it is easy to know the orientation of the hkl
56 + mode **4-circles constant_omega_horizontal**
58 + Axes: **"chi"**, **"phi"**, **"delta"**
59 + Parameters : No parameter
61 This mode do not move the **"omega"** axis.
64 + mode **4-circles constant_chi_horizontal**
66 + Axes: **"omega"**, **"phi"**, **"delta"**
67 + Parameters : No parameter
69 This mode do not move the **"chi"** axis.
71 + mode **4-circles constant_phi_horizontal**
73 + Axes: **"omega"**, **"chi"**, **"delta"**
74 + Parameters : No parameter
76 This mode do not move the **"phi"** axis.