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Rand.hh
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1/*
2 * Copyright (C) 2012 Open Source Robotics Foundation
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 *
16*/
17#ifndef IGNITION_MATH_RAND_HH_
18#define IGNITION_MATH_RAND_HH_
19
20#include <random>
21#include <cmath>
22#include <cstdint>
24#include <ignition/math/config.hh>
25
26namespace ignition
27{
28 namespace math
29 {
30 inline namespace IGNITION_MATH_VERSION_NAMESPACE
31 {
34 typedef std::mt19937 GeneratorType;
37 typedef std::uniform_real_distribution<double> UniformRealDist;
40 typedef std::normal_distribution<double> NormalRealDist;
43 typedef std::uniform_int_distribution<int32_t> UniformIntDist;
44
47 class IGNITION_MATH_VISIBLE Rand
48 {
52 public: static void Seed(unsigned int _seed);
53
57 public: static unsigned int Seed();
58
62 public: static double DblUniform(double _min = 0, double _max = 1);
63
67 public: static double DblNormal(double _mean = 0, double _sigma = 1);
68
72 public: static int32_t IntUniform(int _min, int _max);
73
77 public: static int32_t IntNormal(int _mean, int _sigma);
78
81 private: static uint32_t &SeedMutable();
82
85 private: static GeneratorType &RandGenerator();
86 };
87 }
88 }
89}
90#endif
Random number generator class.
Definition Rand.hh:48
static void Seed(unsigned int _seed)
Set the seed value.
static double DblUniform(double _min=0, double _max=1)
Get a double from a uniform distribution.
static unsigned int Seed()
Get the seed value.
static double DblNormal(double _mean=0, double _sigma=1)
Get a double from a normal distribution.
static int32_t IntNormal(int _mean, int _sigma)
Get an integer from a normal distribution.
static int32_t IntUniform(int _min, int _max)
Get an integer from a uniform distribution.
std::uniform_int_distribution< int32_t > UniformIntDist
Definition Rand.hh:43
std::normal_distribution< double > NormalRealDist
Definition Rand.hh:40
std::uniform_real_distribution< double > UniformRealDist
Definition Rand.hh:37
std::mt19937 GeneratorType
Definition Rand.hh:34
Definition Angle.hh:40