Ejemplo n.º 1
0
void PDESolver<T,lFunc,rFunc,bFunc,tFunc,force>::generateB()
{
  m_B = Vector<T>((m_size - 1) * (m_size - 1));
  ulong index = 0;
  T hVal = (m_rightBound - m_leftBound) / ((T)m_size);
  T x,y;
  for(ulong i = 1; i < m_size; i++)
  {
    for(ulong j = 1; j < m_size; j++)
    {
      m_B.at(index) = 0;
      x = ((T)j * (m_rightBound - m_leftBound))/m_size + m_leftBound;
      y = ((T)i * (m_upperBound - m_lowerBound))/m_size + m_lowerBound;
      if(i - 1 == 0)
        m_B.at(index) += bFunc(x);
      if(i + 1 == m_size)
        m_B.at(index) += tFunc(x);
      if(j - 1 == 0)
        m_B.at(index) += lFunc(y);
      if(j + 1 == m_size)
        m_B.at(index) += rFunc(y);
      m_B.at(index) -= hVal*hVal*force(x,y);
      m_B.at(index) /= 4;
      index++;
    }
  }
}
Ejemplo n.º 2
0
 bool emit( xmlNode & node )
 {
   string name = node.name;
   pf_map::iterator pos = function_map.find(name);
   if( pos!=function_map.end() )
   {
     base_functor & rFunc = * pos->second;      
     rFunc(node);
   }
 }
Ejemplo n.º 3
0
void PDESolver<T,lFunc,rFunc,bFunc,tFunc,force>::gnuPlotify(
  const Vector<T>& sol, const string &method) const
{
  string size;
  stringstream strStream;
  strStream<<m_size;
  strStream>>size;
  
  ofstream pnts,up,down,left,right;
  pnts.open(("points"+method+size+".dat").c_str());

  up.open(("up"+method+size+".dat").c_str());
  down.open(("down"+method+size+".dat").c_str());
  left.open(("left"+method+size+".dat").c_str());
  right.open(("right"+method+size+".dat").c_str());
  
  T val = (m_upperBound-m_lowerBound)/m_size;

  for(unsigned long i = 0;i<m_size;i++)
  {
    up<<m_upperBound<<","<<val<<","<<tFunc(val)<<endl;
    down<<m_lowerBound<<","<<val<<","<<bFunc(val)<<endl;
    left<<val<<","<<m_leftBound<<","<<lFunc(val)<<endl;
    right<<val<<","<<m_rightBound<<","<<rFunc(val)<<endl;
  }

  for(unsigned long i = 0;i<(m_size-1)*(m_size-1);i++)
  {
    T y = i/(m_size-1);
    T x = i%(m_size-1);
    pnts<<x*val<<", "<<y*val<<", "<<sol[i]<<endl;
  }
  pnts.close();
  up.close();
  down.close();
  left.close();
  right.close();
}