\begin{ccRefClass}{Triangulation_face} \ccDefinition A \ccRefName\ is a model of the concept \ccc{TriangulationFace}. \ccParameters Parameter \ccc{TriangulationDataStructure} must be a {\em very loose} model of the concept \ccc{TriangulationDataStructure} in that it must only provide the types\begin{itemize} \item \ccc{Full_cell_handle}, \item \ccc{Vertex_handle} and \item \ccc{Ambient_dimension}\end{itemize} defined in that concept. % FUTURE: Do we create a \ccc{ProtoComplex} concept? \ccIsModel \ccc{TriangulationFace}. \ccSeeAlso \ccc{TriangulationFace},\\ \ccc{TriangulationDataStructure}. \end{ccRefClass}