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scalebias.h

00001 // scalebias.h
00002 //
00003 // Copyright (C) 2003, 2004 Jason Bevins
00004 //
00005 // This library is free software; you can redistribute it and/or modify it
00006 // under the terms of the GNU Lesser General Public License as published by
00007 // the Free Software Foundation; either version 2.1 of the License, or (at
00008 // your option) any later version.
00009 //
00010 // This library is distributed in the hope that it will be useful, but WITHOUT
00011 // ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
00012 // FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public
00013 // License (COPYING.txt) for more details.
00014 //
00015 // You should have received a copy of the GNU Lesser General Public License
00016 // along with this library; if not, write to the Free Software Foundation,
00017 // Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
00018 //
00019 // The developer's email is jlbezigvins@gmzigail.com (for great email, take
00020 // off every 'zig'.)
00021 //
00022 
00023 #ifndef NOISE_MODULE_SCALEBIAS_H
00024 #define NOISE_MODULE_SCALEBIAS_H
00025 
00026 #include "modulebase.h"
00027 
00028 namespace noise
00029 {
00030 
00031   namespace module
00032   {
00033 
00036 
00039 
00042 
00044     const double DEFAULT_BIAS = 0.0;
00045 
00047     const double DEFAULT_SCALE = 1.0;
00048 
00059     class ScaleBias: public Module
00060     {
00061 
00062       public:
00063 
00069         ScaleBias ();
00070 
00079         double GetBias () const
00080         {
00081           return m_bias;
00082         }
00083 
00092         double GetScale () const
00093         {
00094           return m_scale;
00095         }
00096 
00097         virtual int GetSourceModuleCount () const
00098         {
00099           return 1;
00100         }
00101 
00102         virtual double GetValue (double x, double y, double z) const;
00103 
00112         void SetBias (double bias)
00113         {
00114           m_bias = bias;
00115         }
00116 
00125         void SetScale (double scale)
00126         {
00127           m_scale = scale;
00128         }
00129 
00130       protected:
00131 
00133         double m_bias;
00134 
00137         double m_scale;
00138 
00139     };
00140 
00142 
00144 
00146 
00147   }
00148 
00149 }
00150 
00151 #endif