== OrientGens ==

To get a current list of available orientation generators, please run '''''e2help.py orientgens''''' or for more detail, '''''e2help.py orientgens -v 2'''''.

A typical orientation generator looks like this:

 * ''eman:delta=2.0:inc_mirror=0''

Note that the ''perturb'' option is on by default in the eman orientation generator, to reduce noise bias problems.

To get a RANDOM ORIENTATION __within a python script__ with three random values (one for each EULER ANGLE, from positions on "the sphere"), do the following:

{{{
rand_orient = OrientGens.get("rand",{"n":1})    #Fetches the orientation generator

c1_sym = Symmetries.get("c1")                   #Generates the asymmetric unit from which you wish 
                                                #to generate a random orientation

rt = rand_orient.gen_orientations(c1_sym)[0]    #Generates a random orientation (a Transform object) 
                                                #using the generator and asymmetric unit specified 


}}}