cloudViewer::utility::random::DiscreteGenerator< T > Class Template Reference

#include <Random.h>

Public Member Functions
template<typename InputIt >
	DiscreteGenerator (InputIt first, InputIt last)
T	operator() ()
	Call this to generate a discretely distributed integer value. More...

Protected Attributes
std::discrete_distribution< T >	distribution_

Detailed Description

template<typename T>
class cloudViewer::utility::random::DiscreteGenerator< T >

Generate discretely distributed integer values according to a range of weight values. This class is globally seeded by utility::random::Seed(). This class is a wrapper around std::discrete_distribution.

Example:

#include "cloudViewer/utility/Random.h"
 
// Globally seed cloudViewer. This will affect all random functions.
utility::random::Seed(0);
 
// Weighted random choice of size_t
std::vector<double> weights{1, 2, 3, 4, 5};
utility::random::DiscreteGenerator<size_t> gen(weights.cbegin(),
weights.cend()); for (size_t i = 0; i < 10; i++) {
    std::cout << gen() << std::endl;
}

Definition at line 197 of file Random.h.

Constructor & Destructor Documentation

DiscreteGenerator()

template<typename T >

template<typename InputIt >

cloudViewer::utility::random::DiscreteGenerator< T >::DiscreteGenerator ( InputIt  first, InputIt  last  )

inline

Generate discretely distributed integer values according to a range of weight values.

Parameters

first	The iterator or pointer pointing to the first element in the range of weights.
last	The iterator or pointer pointing to one past the last element in the range of weights.

Definition at line 206 of file Random.h.

References LogError.

Member Function Documentation

operator()()

template<typename T >

T cloudViewer::utility::random::DiscreteGenerator< T >::operator() ( )

inline

Call this to generate a discretely distributed integer value.

Definition at line 214 of file Random.h.

References cloudViewer::utility::random::DiscreteGenerator< T >::distribution_, cloudViewer::utility::random::GetEngine(), and cloudViewer::utility::random::GetMutex().

Member Data Documentation

distribution_

template<typename T >

std::discrete_distribution<T> cloudViewer::utility::random::DiscreteGenerator< T >::distribution_

protected

Definition at line 220 of file Random.h.

Referenced by cloudViewer::utility::random::DiscreteGenerator< T >::operator()().

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

• /root/ACloudViewer/libs/cloudViewer/utility/Random.h