PK_section_fence_t

typedef int PK_section_fence_t;

Used in:

PK_BODY_section_o_t
PK_FACE_section_o_t

PK_section_fence_t has three values:
    PK_section_fence_front_c            return bodies in front
    PK_section_fence_back_c             return bodies behind
    PK_section_fence_both_c             return all bodies