DisjointUniformSampler Class Reference

#include <Samplers.h>

Inheritance diagram for DisjointUniformSampler:

Collaboration diagram for DisjointUniformSampler:

Public Member Functions
	~DisjointUniformSampler ()
	DisjointUniformSampler (std::vector< float > ranges)
	DisjointUniformSampler (std::vector< std::pair< float, float > > ranges)
std::vector< std::pair< float, float > >	_getRanges ()
void	_setRanges ()
float	_map_unit_to_val (float x)
float	shoot ()

Public Attributes
float	m_low
float	m_high
float	m_val
TRandom	m_random

Private Attributes
std::vector< std::pair< float, float > >	m_ranges
float	m_totalwidth
std::vector< float >	m_divisions

Detailed Description

Definition at line 86 of file Samplers.h.

Constructor & Destructor Documentation

~DisjointUniformSampler()

DisjointUniformSampler::~DisjointUniformSampler ( )

inline

Definition at line 100 of file Samplers.h.

{};

DisjointUniformSampler() [1/2]

DisjointUniformSampler::DisjointUniformSampler ( std::vector< float >  ranges )

inline

Definition at line 101 of file Samplers.h.

                                                  {
    for (unsigned int i=0; i<ranges.size();) {
      std::pair<float,float> p(ranges[i],ranges[i+1]);
      i+=2;
      m_ranges.push_back(p);
    }
    _setRanges();
  };

DisjointUniformSampler() [2/2]

DisjointUniformSampler::DisjointUniformSampler ( std::vector< std::pair< float, float > >  ranges )

inline

Definition at line 109 of file Samplers.h.

{    m_ranges = ranges;   _setRanges();};

Member Function Documentation

_getRanges()

std::vector< std::pair<float,float> > DisjointUniformSampler::_getRanges ( )

inline

Definition at line 111 of file Samplers.h.

{ return m_ranges; };

_map_unit_to_val()

float DisjointUniformSampler::_map_unit_to_val ( float  x )

inline

Definition at line 129 of file Samplers.h.

                                 {
    assert(x >= 0 && x <= 1);
    unsigned int idx = -1, rem = 0;
    for (unsigned int i=0; i<m_divisions.size()-1; i++) 
      if (x >= m_divisions[i] and x < m_divisions[i+1]) {
    idx = i;
    rem = x - m_divisions[i];
    break;
      }
    float val = m_ranges[idx].first + m_totalwidth * rem;
    return val;
  };

_setRanges()

void DisjointUniformSampler::_setRanges ( )

inline

Definition at line 113 of file Samplers.h.

                    {
    for (unsigned int i=0; i<m_ranges.size(); i++) {
      m_totalwidth += m_ranges[i].second - m_ranges[i].first;
    };
    float runningwidth = 0.0;
    m_divisions.push_back(0.0);
    for (unsigned int i=0; i<m_ranges.size(); i++) {
      assert(m_ranges[i].second >= m_ranges[i].first);
      runningwidth += float(m_ranges[i].second - m_ranges[i].first);
      m_divisions.push_back(runningwidth);
    }
    m_totalwidth = runningwidth;
    for (unsigned int i=0; i<m_ranges.size(); i++) 
      m_divisions[i] = float(m_divisions[i]) / float(m_totalwidth);
  };

shoot()

float DisjointUniformSampler::shoot ( )

inlinevirtual

Reimplemented from UniformSampler.

Definition at line 142 of file Samplers.h.

               {
    float rand = m_random.Uniform();
    float val = _map_unit_to_val(rand);
    return val;
  };

Member Data Documentation

m_divisions

std::vector<float> DisjointUniformSampler::m_divisions

private

Definition at line 150 of file Samplers.h.

m_high

float UniformSampler::m_high

inherited

Definition at line 63 of file Samplers.h.

m_low

float UniformSampler::m_low

inherited

Definition at line 63 of file Samplers.h.

m_random

TRandom Sampler::m_random

inherited

Definition at line 25 of file Samplers.h.

m_ranges

std::vector< std::pair<float,float> > DisjointUniformSampler::m_ranges

private

Definition at line 148 of file Samplers.h.

m_totalwidth

float DisjointUniformSampler::m_totalwidth

private

Definition at line 149 of file Samplers.h.

m_val

float Sampler::m_val

inherited

Definition at line 24 of file Samplers.h.

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

• Samplers.h