SimpleGrid Class Reference

Collaboration diagram for SimpleGrid:

Public Member Functions
int	NumPoints ()
std::vector< double > &	Points ()
double	operator[] (int i)
int	ReverseMap (double r)
	Returns the index of the nearest point below r. More...
double	Start ()
double	End ()
void	Init (std::vector< double > &points)
	SimpleGrid ()
	Useless constructor. More...

Private Attributes
std::vector< double >	grid

Detailed Description

Definition at line 20 of file GeneralGrid.h.

Constructor & Destructor Documentation

SimpleGrid()

SimpleGrid ( )

inline

Useless constructor.

Definition at line 71 of file GeneralGrid.h.

  { /*  Do nothing */
  }

Member Function Documentation

End()

double End ( )

inline

Definition at line 62 of file GeneralGrid.h.

References grid.

Referenced by CubSpline::operator()().

{ return grid[grid.size() - 1]; }

Init()

void Init ( std::vector< double > &  points )

inline

Definition at line 64 of file GeneralGrid.h.

References grid.

  {
    grid.resize(points.size());
    grid = points;
  }

NumPoints()

int NumPoints ( )

inline

Definition at line 26 of file GeneralGrid.h.

References grid.

Referenced by CubSpline::Deriv(), CubSpline::Deriv2(), CubSpline::Deriv3(), CubSpline::Init(), CubSpline::operator()(), and CubSpline::size().

{ return grid.size(); }

operator[]()

double operator[] ( int  i )

inline

Definition at line 30 of file GeneralGrid.h.

References grid.

{ return grid[i]; }

Points()

std::vector<double>& Points ( )

inline

Definition at line 28 of file GeneralGrid.h.

References grid.

{ return grid; }

ReverseMap()

int ReverseMap ( double  r )

inline

Returns the index of the nearest point below r.

Definition at line 33 of file GeneralGrid.h.

References BLAS::done, grid, and qmcplusplus::n.

Referenced by CubSpline::Deriv(), CubSpline::Deriv2(), CubSpline::Deriv3(), and CubSpline::operator()().

  {
    int n = grid.size();
    if (r <= grid[0])
      return (0);
    else if (r >= grid[n - 1])
      return n - 1;
    else
    {
      int hi    = n - 1;
      int lo    = 0;
      bool done = false;
      while (!done)
      {
        int i = (hi + lo) >> 1;
        if (grid[i] > r)
          hi = i;
        else
          lo = i;
        done = (hi - lo) < 2;
      }
      if (grid[lo] >= r)
        lo--;
      return (lo);
    }
  }

Start()

double Start ( )

inline

Definition at line 60 of file GeneralGrid.h.

References grid.

{ return grid[0]; }

Member Data Documentation

grid

std::vector<double> grid

private

Definition at line 23 of file GeneralGrid.h.

Referenced by End(), Init(), NumPoints(), operator[](), Points(), ReverseMap(), and Start().

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The documentation for this class was generated from the following file:

• /home/pk7/projects/qmc/for_cron_doxygen/qmcpack/src/QMCTools/ppconvert/src/GeneralGrid.h