mirror of https://github.com/CGAL/cgal
101 lines
2.9 KiB
TeX
101 lines
2.9 KiB
TeX
% +------------------------------------------------------------------------+
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% | Reference manual page: Constrained_face_base.tex
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% +------------------------------------------------------------------------+
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% | 12.04.2000 Author
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% | Package: Package
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% |
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\RCSdef{\RCSConstrainedfacebaseRev}{$Id$}
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\RCSdefDate{\RCSConstrainedfacebaseDate}{$Date$}
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% |
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%%RefPage: end of header, begin of main body
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% +------------------------------------------------------------------------+
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\begin{ccRefConcept}{ConstrainedTriangulationFaceBase_2}
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%% \ccHtmlCrossLink{} %% add further rules for cross referencing links
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%% \ccHtmlIndexC[concept]{} %% add further index entries
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\ccDefinition
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In a constrained triangulation,
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the information about constrained edges is stored in the
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faces of the triangulation.
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The base face of a constrained triangulation
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has to be a model of the concept
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\ccRefName\ which refines the concept
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\ccc{TriangulationFaceBase_2}
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providing functionalities to deal with
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constraints.
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\ccRefines
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\ccc{TriangulationFaceBase_2}
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\ccTypes
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Defines the same types as the \ccc{TriangulationFaceBase_2} concept
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\ccCreationVariable{f} %% choose variable name
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\ccThree{bool}{f.is_constrained(int i)}{}
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\ccHeading{Access Functions}
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\ccMethod{bool is_constrained(int i);}
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{returns true if the edge between \ccVar\ and its neighbor
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\ccVar .\ccc{neighbor(i)} is constrained.
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\ccPrecond $0\leq i \leq 2$.}
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\begin{ccAdvanced}
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\ccModifiers
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\ccMethod{void set_constraint(int i, bool b);}
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{sets the edge between \ccVar\ and its neighbor \ccVar .\ccc{neighbor(i)}
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as a constrained or unconstrained edge according to \ccc{b}.}
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\ccMethod{void set_constraints(bool c0, bool c1, bool c2);}
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{sets the status (constrained or unconstrained) of the three
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edges of \ccVar.}
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\ccMethod{void reorient();}
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{Changes the orientation of \ccVar\ by exchanging \ccc{vertex(0)}
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with \ccc{vertex(1)} and \ccc{neighbor(0)} with \ccc{neighbor(1)}
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and the corresponding constrained status.}
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\ccMethod{void ccw_permute();}
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{performs a counterclockwise permutation of the
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vertices, neighbors and constrained status of \ccVar.}
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\ccMethod{ void cw_permute();}
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{performs a clockwise permutation of the
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vertices and neighbors and constrained status of \ccVar.}
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\ccHeading{Miscellaneous}
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\ccMethod{bool is_valid();}
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{tests the validity of face \ccVar\
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as a face of a plain triangulation
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and additionally checks
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if the edges of \ccVar\ are consistently marked
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as constrained or unconstrained edges
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in face \ccVar and its neighbors.}
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\end{ccAdvanced}
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\ccHasModels
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\ccc{CGAL::Constrained_triangulation_face_base_2<Traits>}
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\ccSeeAlso
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\ccc{TriangulationFaceBase_2} \\
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\ccc{CGAL::Constrained_triangulation_2<Traits,Tds>} \\
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\ccc{CGAL::Constrained_triangulation_face_base_2<Traits>}
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\end{ccRefConcept}
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% +------------------------------------------------------------------------+
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%%RefPage: end of main body, begin of footer
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% EOF
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% +------------------------------------------------------------------------+
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