PK_MTOPOL_merge_t

typedef int PK_MTOPOL_merge_t;


This datatype is used to select the level of smoothness at which a mesh-mesh
or polyline-polyline interface is considered redundant. It takes the values

    PK_MTOPOL_merge_g0_c     allow merging of all topological entities with
                             facet geometry, irrespective of interface
                             smoothness
    PK_MTOPOL_merge_g1_c     allow only smooth edges/vertices on facet bodies
                             to be considered as redundant

Two polylines are considered to meet smoothly if their end tangents agree to
within the value returned by PK_SESSION_ask_mesh_angle.

Two meshes with dynamic normals are considered to meet smoothly if their
vertex normals agree along the mesh-mesh interface agree to within the value
returned by PK_SESSION_ask_mesh_angle. If either mesh has stored normals,
the angular tolerance used is, instead, the value returned by
PK_SESSION_ask_angle_precision. Edge smoothness can be tested by calling
PK_EDGE_is_smooth on the edge, using the indicated angular tolerances.

The PK_MTOPOL_merge_g1_c option does not force all smooth mesh-mesh interfaces
to be deleted, as the decision to delete depends on the collection of all
edges with the same face pair.