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% | Reference manual page: Triangulation_2::Face_base.tex
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% | 11.04.2000   Author
% | Package: Package
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\RCSdef{\RCSTriangulation::FacebaseRev}{$Id$}
\RCSdefDate{\RCSTriangulation::FacebaseDate}{$Date$}
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\begin{ccRefConcept}{TriangulationFaceBase_2}

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\ccDefinition
  
The concept \ccRefName\ describes the requirements for
the base face class of a triangulation data structure
that is itself plugged into a basic triangulation
or a Delaunay triangulation.

This concept refines the concept \ccc{TriangulationDSFaceBase_2}
and could add  geometric information. In fact, 
currently the triangulations of
CGAL do not  store any geometric information in the faces
and, thus this concept is just equal to \ccc{TriangulationDSFaceBase_2}
and only provided for symmetry with the vertex case.


\ccRefines
\ccc{TriangulationDSFaceBase_2}

\ccHasModels
\ccc{CGAL::Triangulation_face_base_2<Traits>}


\ccSeeAlso
\ccc{TriangulationVertexBase_2} \\
\ccc{CGAL::Triangulation_face_base_2<Traits>} \\
\ccc{CGAL::Triangulation_2<Traits,Tds>} \\
\ccc{CGAL::Delaunay_triangulation_2<Traits,Tds>}

\end{ccRefConcept}

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