cgal/Polyhedron/doc_tex/Polyhedron_ref/PolyhedronTraits_3.tex

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% | Reference manual page: PolyhedronTraits_3.tex
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% | 17.03.1999 Lutz Kettner
% | Package: Polyhedron
% |
\RCSdef{\RCSPolyhedronTraitsRev}{$Id$}
\RCSdefDate{\RCSPolyhedronTraitsDate}{$Date$}
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\ccRefPageBegin
%%RefPage: end of header, begin of main body
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\begin{ccRefConcept}{PolyhedronTraits_3}
\label{pagePolyTraitsRef}
Required types and member functions for the \ccRefName\ concept. This
geometric traits concept is used in the polyhedral surface data
structure \ccc{CGAL::Polyhedron_3<Traits>}. This concept is a subset of
the 3d kernel traits and any \cgal\ kernel model can be used directly
as template argument.
\ccRefines
\ccc{CopyConstructable}, \ccc{Assignable}.
\ccTypes
\ccNestedType{Point_3}{point type.}
\ccNestedType{Plane_3}{plane equation. Even if plane equations
are not supported with a particular polyhedral surface this
type has to be defined (some dummy type).}
\ccNestedType{Construct_opposite_plane_3}{is an unary function object
that reverses the plane orientation. Must provide \ccc{Plane_3
operator()(Plane_3 plane)} that returns the reversed plane. Required
only if plane equations are supported and the \ccc{inside_out()}
method is used to reverse the polyhedral surface orientation.}
% No longer required
%\ccNestedType{Vector_3}{normal vector. Required only if normals are
% supported in the polyhedral surface. Must be assignment
% compatible to the orthogonal vector type of \ccc{Plane}
% if plane equations are supported as well.}
%
%\ccNestedType{Construct_opposite_vector_3}{is an unary function object type
% that reverses the vector orientation. Must provide \ccc{Vector_3
% operator()(Vector_3 vector)} that returns the reversed vector. Required
% only if normal vectors are supported, plane equations are not supported,
% and the \ccc{inside_out()} method is used to reverse the polyhedral
% surface orientation.}
\ccCreation
\ccCreationVariable{traits}
\ccConstructor{PolyhedronTraits_3( const PolyhedronTraits_3& traits2);}{
copy constructor.}
\ccMethod{PolyhedronTraits_3& operator= ( const PolyhedronTraits_3& traits2);}{
assignment.}
\ccOperations
\ccSetThreeColumns{Construct_opposite_plane_3}{}{\hspace*{8.5cm}}
\ccMethod{Construct_opposite_plane_3 construct_opposite_plane_3_object();}{
returns an instance of this function object.}
%\ccMethod{Construct_opposite_vector_3 construct_opposite_vector_3_object();}{
% returns an instance of this functions object.}
\ccHasModels
\ccRefIdfierPage{CGAL::Polyhedron_traits_3<Kernel>}\\
\ccRefIdfierPage{CGAL::Polyhedron_traits_with_normals_3<Kernel>}\\
All models of the \ccc{CGAL::Kernel} concept, e.g.,
\ccc{Simple_cartesian<FieldNumberType>}.
\ccSeeAlso
\ccRefIdfierPage{CGAL::Polyhedron_3<Traits>}
\end{ccRefConcept}
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\ccRefPageEnd
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