struct PK_EDGE_set_blend_constant_o_s
    {
    int                    o_t_version;  --- version number of option structure
    PK_EDGE_t              cliff_edge;   --- top of cliff (PK_ENTITY_null)
    PK_blend_properties_t  properties;   --- properties of blend
                                         --- (PK_blend_properties_t)
    };

typedef struct PK_EDGE_set_blend_constant_o_s PK_EDGE_set_blend_constant_o_t;



Holds optional controls for setting a constant radius blend.


The option structure defines options applicable to setting a constant radius
blend.