PK_SURF_create_blend

PK_ERROR_code_t                 PK_SURF_create_blend
(
--- received arguments ---
PK_GEOM_t                       geom1,      --- first underlying geometry
double                          range1,     --- offset from 'geom1'
PK_GEOM_t                       geom2,      --- first underlying geometry
double                          range2,     --- offset from 'geom2'
PK_VECTOR_t                     start,      --- help point for start
PK_VECTOR_t                     end,        --- help point for end
const PK_SURF_create_blend_o_t *options,

--- returned arguments ---
PK_SURF_t                *const blend_surf  --- blend surface
)


This function creates a surface, representing a constant radius rolling ball
blend upon the supplied geometry

This function does not support facet geometry [NF]


Specific Errors:
    PK_ERROR_bad_blend_param       magnitudes of 'range1' and 'range2'
                                   different
    PK_ERROR_bad_shared_entity     'geom1' and 'geom2' not owned by same part
    PK_ERROR_su_self_intersect     self intersecting blend surface


'range1' is the offset from the surface 'geom1' to the blend spine.
'range2' is the offset from the surface 'geom2' to the blend spine.
'range1' and 'range2' must have the same magnitude (the radius of the rolling
ball).
'range1' and 'range2' are measured in the direction of the surface normal as
returned by PK_SURF_eval_with_normal.

'start' and 'end' are help points near the blend spine indicating roughly the
extent of the surface.  The offset surfaces may have several intersections
and these points are used to choose the required one.