sphere.h

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00001 /**********************************************************************
00002   Sphere - Class for drawing spheres in OpenGL
00003 
00004   Copyright (C) 2007-2008 Jean Brefort <jean.brefort@normalesup.org>
00005   Copyright (C) 2006,2007 Benoit Jacob <jacob@math.jussieu.fr>
00006 
00007   This file is part of the Avogadro molecular editor project.
00008   For more information, see <http://avogadro.sourceforge.net/>
00009 
00010   Avogadro is free software; you can redistribute it and/or modify 
00011   it under the terms of the GNU General Public License as published by 
00012   the Free Software Foundation; either version 2 of the License, or 
00013   (at your option) any later version.
00014 
00015   Avogadro is distributed in the hope that it will be useful,
00016   but WITHOUT ANY WARRANTY; without even the implied warranty of
00017   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00018   GNU General Public License for more details.
00019 
00020   You should have received a copy of the GNU General Public License
00021   along with this program; if not, write to the Free Software
00022   Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
00023   02110-1301, USA.
00024  **********************************************************************/
00025 
00026 #ifndef GCU_SPHERE_H
00027 #define GCU_SPHERE_H
00028 
00029 namespace OpenBabel {
00030         class vector3;
00031 }
00032 
00034 namespace gcu {
00035 
00047 class SpherePrivate;
00048 
00049 class Sphere
00050 {
00051 private:
00052         SpherePrivate * const d;
00053 
00054 protected:
00055 
00060         inline unsigned short indexOfVertex (int strip, int column, int row);
00061 
00066         void computeVertex (int strip, int column, int row);
00067 
00068         void freeBuffers ();
00069         void initialize ();
00070 
00071 public:
00072         Sphere (int detail = 0);
00073         ~Sphere ();
00074 
00079         void setup (int detail);
00080 
00083         void draw (OpenBabel::vector3 const &center, double radius) const;
00084 };
00085 
00086 }
00087 
00088 #endif  //      GCU_SPHERE_H

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