typedef int PK_render_planar_t;


This field can take any one of the following values.
    PK_render_planar_no_c       : no planar hatching (default)
    PK_render_planar_attrib_c   : planar hatch faces which have planar hatch
                                    attribute
    PK_render_planar_free_c     : planar hatch using vector in planar_axis
                                    in PK_TOPOL_render_line_o_t without locking
                                    plane positions to a point
    PK_render_planar_yes_c      : planar hatch using planar_axis in
                                    PK_TOPOL_render_line_o_t