RandomColorMap.ih

/**
 *  This program is free software: you can redistribute it and/or modify
 *  it under the terms of the GNU Lesser General Public License as
 *  published by the Free Software Foundation, either version 3 of the
 *  License, or  (at your option) any later version.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 **/
 
/**
 * @file RandomColorMap.ih
 * @author Bertrand Kerautret (\c kerautre@loria.fr )
 * LORIA (CNRS, UMR 7503), University of Nancy, France
 *
 * @date 2011/07/18
 *
 * Implementation of inline methods defined in RandomColorMap.h
 *
 * This file is part of the DGtal library.
 */
 
///////////////////////////////////////////////////////////////////////////////
// IMPLEMENTATION of inline methods.
///////////////////////////////////////////////////////////////////////////////
 
//////////////////////////////////////////////////////////////////////////////
#include <cstdlib>
//////////////////////////////////////////////////////////////////////////////
 
 
 
///////////////////////////////////////////////////////////////////////////////
// Implementation of inline methods                                          //
 
 
 
 
 
inline 
DGtal::RandomColorMap::RandomColorMap(const unsigned int &aFirstIndex, const unsigned int & aLastIndex, 
              const Color &aFirstColor, const Color &aLastColor)
{
  myMin = aFirstIndex;
  myMax  = aLastIndex;
  ASSERT_MSG(myMin < myMax, "Max should be strictly greather than Min in a colormap.");
  myGradientMap = new GradientColorMap<unsigned int> (aFirstIndex, aLastIndex);
  myGradientMap->addColor(aFirstColor);
  myGradientMap->addColor(aLastColor);
  associateRandomIndexColor();  
}
 
 
 
inline
void
DGtal::RandomColorMap::associateRandomIndexColor(){
  for(unsigned int i=myMin; i<=myMax; i++){
    myColorIndex.push_back(myMax+1);
    myFreeColorIndex.push_back(i);
  }
  unsigned int i=0;
  while(myFreeColorIndex.size()!=0){
    unsigned int pos = rand()%myFreeColorIndex.size();
    myColorIndex[i]=myFreeColorIndex.at(pos);
    myFreeColorIndex.erase(myFreeColorIndex.begin()+pos);
    i++;
  }
  
}
 
inline
DGtal::RandomColorMap::~RandomColorMap()
{
  delete myGradientMap;
}
 
 
 
inline
void
DGtal::RandomColorMap::addColor( const Color &aColor) 
{
  myGradientMap->addColor(aColor);
  associateRandomIndexColor();
}
 
inline
void
DGtal::RandomColorMap::selfDisplay ( std::ostream & out ) const
{
    out << "[RandomColorMap]";
}
 
 
inline 
bool
DGtal::RandomColorMap::isValid() const
{
    return true;
}
 
 
inline
DGtal::RandomColorMap &
DGtal::RandomColorMap::operator=(const DGtal::RandomColorMap & anOther)
{
if ( &anOther != this ) {
    myMin = anOther.myMin;
    myMax = anOther.myMax;
    ASSERT_MSG(myMin < myMax, "Max should be strictly greather than Min in a colormap.");
    myColorIndex = anOther.myColorIndex;
    myFreeColorIndex= anOther.myFreeColorIndex;
    myGradientMap = new GradientColorMap<unsigned int> (myMin, myMax);
 }
  return *this;
}
 
inline
DGtal::Color 
DGtal::RandomColorMap::operator()( const unsigned int & aValue ) const
{
  return (*myGradientMap)(myColorIndex.at(aValue));    
}
 
 
inline
const unsigned int &
DGtal::RandomColorMap::min() const
{
  return myMin;
}
 
inline
const unsigned int &
DGtal::RandomColorMap::max() const
{
  return myMax;
}
 
 
///////////////////////////////////////////////////////////////////////////////
// Implementation of inline functions and external operators                 //
 
/**
 * Overloads 'operator<<' for displaying objects of class 'RandomColorMap'.
 * @param out the output stream where the object is written.
 * @param object the object of class 'RandomColorMap' to write.
 * @return the output stream after the writing.
 */
inline
std::ostream&
DGtal::operator<< ( std::ostream & out,
                  const RandomColorMap & object )
{
    object.selfDisplay ( out );
    return out;
}
 
//                                                                           //
///////////////////////////////////////////////////////////////////////////////