PK_FACE_imprint_cus_isoclin_o_t

struct PK_FACE_imprint_cus_isoclin_o_s
    {
    int                  o_t_version;    --- version number of option structure
    PK_LOGICAL_t         old_iso;        --- DEPRECATED (PK_LOGICAL_false)
    PK_LOGICAL_t         all_points;     --- DEPRECATED (PK_LOGICAL_true)
    PK_LOGICAL_t         want_ret_faces; --- whether returned faces are
                                         --- required
                                         --- (PK_LOGICAL_true)
    PK_LOGICAL_t         want_is_steep;  --- whether steepness data are
                                         --- required
                                         --- (PK_LOGICAL_true)
    PK_LOGICAL_t         want_new_edges; --- whether new edges are required
                                         --- (PK_LOGICAL_true)
    PK_isocline_split_t  isocline_split; --- whether isocline curves with mixed
                                         --- draw convexity are to be split
                                         --- (PK_isocline_split_no_c)
    PK_MESH_normal_field_t
                         mesh_normal_field;
                                         --- whether isocline curves on a mesh
                                         --- are computed using vertex
                                         --- normals
                                         --- (PK_MESH_normal_field_mvertex_c)
    };
typedef struct PK_FACE_imprint_cus_isoclin_o_s PK_FACE_imprint_cus_isoclin_o_t;


Contains optional controls on isocline curve generation and on
returned arguments for function PK_FACE_imprint_cus_isoclin.

Used in:

PK_FACE_imprint_cus_isoclin

Description of fields:

'want_ret_faces'         If this option is set to PK_LOGICAL_true, the
                         default value, the returned faces are required.

'want_is_steep'          If this option is set to PK_LOGICAL_true, the
                         default value, the face steepness data will be
                         returned.

'want_new_edges'         If this option is set to PK_LOGICAL_true, the
                         default value, the new edges will be returned.

'isocline_split'         If this option is set to PK_isocline_split_no_c, the
                         default value, isocline curves will not be split.
                         If setting it to PK_isocline_split_convexity_c,
                         isocline curves will be split at the points where
                         the draw convexity changes.

'mesh_normal_field'      If this option is set to
                         PK_MESH_normal_field_mvertex_c, mesh vertex normals
                         will be used to generate isocline curves.
                         If set to PK_MESH_normal_field_mfacet_c, facet
                         normals will be used. This option is ignored on
                         classic geometry.