A portable, open-source, coherent noise-generating library for C++

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# select.h

    00001 // select.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_SELECT_H
    00024 #define NOISE_MODULE_SELECT_H
    00025
    00026 #include "modulebase.h"
    00027
    00028 namespace noise
    00029 {
    00030
    00031   namespace module
    00032   {
    00033
    00036
    00039
    00042
    00044     const double DEFAULT_SELECT_EDGE_FALLOFF = 0.0;
    00045
    00048     const double DEFAULT_SELECT_LOWER_BOUND = -1.0;
    00049
    00052     const double DEFAULT_SELECT_UPPER_BOUND = 1.0;
    00053
    00084     class Select: public Module
    00085     {
    00086
    00087       public:
    00088
    00099         Select ();
    00100
    00117         const Module& GetControlModule () const
    00118         {
    00119           if (m_pSourceModule == NULL || m_pSourceModule[2] == NULL) {
    00120             throw noise::ExceptionNoModule ();
    00121           }
    00122           return *(m_pSourceModule[2]);
    00123         }
    00124
    00135         double GetEdgeFalloff () const
    00136         {
    00137           return m_edgeFalloff;
    00138         }
    00139
    00148         double GetLowerBound () const
    00149         {
    00150           return m_lowerBound;
    00151         }
    00152
    00153         virtual int GetSourceModuleCount () const
    00154         {
    00155           return 3;
    00156         }
    00157
    00166         double GetUpperBound () const
    00167         {
    00168           return m_upperBound;
    00169         }
    00170
    00171         virtual double GetValue (double x, double y, double z) const;
    00172
    00188         void SetBounds (double lowerBound, double upperBound);
    00189
    00209         void SetControlModule (const Module& controlModule)
    00210         {
    00211           assert (m_pSourceModule != NULL);
    00212           m_pSourceModule[2] = &controlModule;
    00213         }
    00214
    00242         void SetEdgeFalloff (double edgeFalloff);
    00243
    00244       protected:
    00245
    00247         double m_edgeFalloff;
    00248
    00250         double m_lowerBound;
    00251
    00253         double m_upperBound;
    00254
    00255     };
    00256
    00258
    00260
    00262
    00263   }
    00264
    00265 }
    00266
    00267 #endif