The Gnome Chemistry Utils 0.13.3
sphere.h
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00001 /**********************************************************************
00002   Sphere - Class for drawing spheres in OpenGL
00003 
00004   Copyright (C) 2007-2009 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 
00030 namespace gcu {
00031 
00043 class Vector;
00044 class SpherePrivate;
00045 
00046 class Sphere
00047 {
00048 private:
00049         SpherePrivate * const d;
00050 
00051 protected:
00052 
00057         inline unsigned short indexOfVertex (int strip, int column, int row);
00058 
00063         void computeVertex (int strip, int column, int row);
00064 
00065         void freeBuffers ();
00066         void initialize ();
00067 
00068 public:
00069         Sphere (int detail = 0);
00070         ~Sphere ();
00071 
00076         void setup (int detail);
00077 
00080         void draw (Vector const &center, double radius) const;
00081 };
00082 
00083 }
00084 
00085 #endif  //      GCU_SPHERE_H