Role: If the refinement is NULL, it will default to the refinement
created by api_initialise_faceter.
When you create a refinement and pass it to api_set_default_refinement, ACIS takes
ownership of that refinement object, including responsibility for its deletion.
Errors: Pointer to given refinement, if non-NULL, must be a REFINEMENT.
Effect: Changes model
Journal: Available
Parameters:
ref
default refinement to set.
ao
acis options.
This object is included in the file: af_api.hxx
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