VoronoiCell.hpp

00001 /*
00002 
00003 Copyright (C) University of Oxford, 2005-2009
00004 
00005 University of Oxford means the Chancellor, Masters and Scholars of the
00006 University of Oxford, having an administrative office at Wellington
00007 Square, Oxford OX1 2JD, UK.
00008 
00009 This file is part of Chaste.
00010 
00011 Chaste is free software: you can redistribute it and/or modify it
00012 under the terms of the GNU Lesser General Public License as published
00013 by the Free Software Foundation, either version 2.1 of the License, or
00014 (at your option) any later version.
00015 
00016 Chaste is distributed in the hope that it will be useful, but WITHOUT
00017 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
00018 FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public
00019 License for more details. The offer of Chaste under the terms of the
00020 License is subject to the License being interpreted in accordance with
00021 English Law and subject to any action against the University of Oxford
00022 being under the jurisdiction of the English Courts.
00023 
00024 You should have received a copy of the GNU Lesser General Public License
00025 along with Chaste. If not, see <http://www.gnu.org/licenses/>.
00026 
00027 */
00028 
00029 
00030 #ifndef VORONOICELL_HPP_
00031 #define VORONOICELL_HPP_
00032 
00033 #include "UblasCustomFunctions.hpp"
00034 #include "Face.hpp"
00035 #include <cxxtest/TestSuite.h>
00036 
00037 #include <cmath>
00038 #include <vector>
00039 
00040 class VoronoiCell
00041 {
00042 public:
00044     /***
00045      * Faces of the cell, which should be distinct.
00046      */
00047     std::vector< Face<3>* > mFaces;
00048 
00049     /***
00050      * How each face is oriented.
00051      * From the perspective of the centre of the cell, the vertices of each face should be ordered clockwise.
00052      * If and only if this is false, the order of vertices in the corresponding face should be reversed.
00053      *
00054      * N.B. Most faces belong to two cells, but with opposite orientations. This allows us to reuse the face data
00055      * across the two cells.
00056      */
00057     std::vector< bool > mOrientations;
00058     c_vector<double,3> mCellCentre;
00059 
00060 private:
00061     bool EqualFaces(Face<3>& face1, bool orientation1, Face<3>& face2, bool orientation2);
00062 
00063 
00064 public:
00065 
00066     /***
00067      * Test whether two cells are equal.
00068      *
00069      * Two cells are equal if their set of faces are equal (including whether the faces have the same orientations).
00070      */
00071     bool operator==(VoronoiCell& otherCell);
00072     c_vector<double, 3>& rGetVoronoiCellCentre();
00073 };
00074 
00075 #endif /*VORONOICELL_HPP_*/

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