explicit/supports explicit/supports_4 explicit/supports_36 barycentric/barycentric barycentric/ux barycentric/ux_ca barycentric/ux_c-a barycentric/uy barycentric/uy_cab barycentric/uy_ca-b barycentric/uz barycentric/uz_c-a-b barycentric/uz_cab barycentric/Ax barycentric/Ay