initFromEuler
Initializes a #graphene_euler_t using the angles and order of another #graphene_euler_t.
If the #graphene_euler_t @src is null, this function is equivalent to calling graphene_euler_init() with all angles set to 0.
Return
the initialized #graphene_euler_t
Since
1.2
Parameters
src
a #graphene_euler_t