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Decription of UF_SF_COMPOSITE_parameters_s:

1. auto_create_comp_edges: This logical parameter indicates whether composite
edges should be created automatically during the
creation of composite faces. For example, during
the manual creation of a composite face, if, by
compositing the faces together 2 of the bounding
edge meet at a vertex that is only used by those 2
edges, these 2 edges will be candidates to be
composited into a composite edge. If
auto_create_comp_edges == FALSE, no composite edges
will be created. If auto_create_comp_edges == TRUE,
the edgew will be composited together if they meet
the min_edge_int_angle criteria below.
2. min_edge_int_angle: This angle (input in degrees) is the criteria by
which it is decided whether to composite 2 edges
together or not. If 2 edges share a common vertex,
and that vertex is used by only 2 edges, then the
angle (beta) between the 2 edges is computed. If
beta > min_edge_int_angle, the edges will be
composited together. If beta <= min_edge_int_angle,
the edges will not be composited together.