struct PK_TOPOL_eval_mass_props_o_s
    {
    int                 o_t_version;    --- version number of option structure
    PK_mass_t           mass;           --- required mass properties
                                        --- (PK_mass_m_of_i_c)
    PK_mass_periphery_t periphery;      --- periphery required
                                        --- (PK_mass_periphery_yes_c)
    PK_mass_bound_t     bound;          --- bounds on results required
                                        --- (PK_mass_bound_no_c)
    PK_LOGICAL_t        single;         --- whether to treat topols as
                                        --- single solid (PK_LOGICAL_false)
    PK_LOGICAL_t        use_facets;     --- whether to use alternative facetted
                                        --- method (PK_LOGICAL_false)
    double              facet_tol;      --- chordal tolerance to use for facets
                                        --- 0.0 requests the internal default
    };

typedef struct PK_TOPOL_eval_mass_props_o_s PK_TOPOL_eval_mass_props_o_t;



Holds optional controls for evaluating the mass properties of a given set of
topological entities.


The option structure defines options applicable to evaluating the mass
properties of a given set of topological entities.