typedef int PK_BODY_topology_t; This data type specifies how bodies created by lofting and sweeping will be divided into faces. It has three values PK_BODY_topology_minimal_c Produce the minimum number of faces (default). PK_BODY_topology_columns_c Produces columns of faces corresponding to the profile edges. For sweeping, the result is a column of faces for each edge in the profile. For lofting, the result is a face for each set of corresponding edges in the profiles. PK_BODY_topology_grid_c Produces a grid of faces. For sweeping the result is a set of faces for each edge in the profile; the number of faces in the sweep direction is the number of edges in the path. For lofting the result is a set of faces for each set of corresponding edges in the profiles; the number of faces in the loft direction is one less than the number of profiles.