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% | Reference manual page: TriangulationCellBase_3.tex
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% | 29.3.2000   Monique Teillaud
% | Package: Triangulation3
% | 
\RCSdef{\RCSTriangulationcbRev}{$Id$}
\RCSdefDate{\RCSTriangulationcbDate}{$Date$}
% |
%%RefPage: end of header, begin of main body
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\begin{ccRefConcept}{TriangulationCellBase_3}

\ccDefinition

The cell base required by the basic triangulation does not need to store any
geometric information, so only the requirements of the triangulation data
structure apply.

However, for the Delaunay triangulation, the ability to store the circumcenter
is provided (for optimization reasons), hence an additional requirement only
in this case, and only when the dual functions are called.

\ccRefines \ccc{TriangulationDSCellBase_3}

\ccCreationVariable{c}

\ccMethod{const DelaunayTriangulationTraits_3::Point_3& circumcenter(
  const DelaunayTriangulationTraits_3&gt = DelaunayTriangulationTraits_3()) const;}
{Returns the circumcenter.}


\ccHasModels

\ccc{CGAL::Triangulation_cell_base_3}\\
\ccc{CGAL::Triangulation_cell_base_with_info_3}\\
\ccc{CGAL::Triangulation_cell_base_with_circumcenter_3}

\ccSeeAlso

\ccc{TriangulationVertexBase_3}

%% \ccExample

%% \ccIncludeExampleCode{Triangulation3/Triangulation_cb_3_prog.cpp}

\end{ccRefConcept}