PK_boolean_fence_t

typedef int PK_boolean_fence_t;

Used in:

PK_BODY_boolean_o_t
PK_BODY_identify_facesets_o_t
PK_FACE_boolean_o_t

PK_boolean_fence_t has three values:
    PK_boolean_fence_front_c            keep bodies in front
    PK_boolean_fence_back_c             keep bodies behind
    PK_boolean_fence_none_c             keep all bodies