random_numbers.h
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00034 
00035 /* Author: Ioan Sucan */
00036 
00037 #ifndef RANDOM_NUMBERS_RANDOM_NUMBERS_
00038 #define RANDOM_NUMBERS_RANDOM_NUMBERS_
00039 
00040 #include <boost/random/mersenne_twister.hpp>
00041 #include <boost/random/uniform_real.hpp>
00042 #include <boost/random/uniform_int.hpp>
00043 #include <boost/random/variate_generator.hpp>
00044 #include <boost/random/normal_distribution.hpp>
00045 
00046 namespace random_numbers
00047 {
00054 class RandomNumberGenerator
00055 {
00056 public:
00057   
00059   RandomNumberGenerator(void);
00060 
00062   RandomNumberGenerator(boost::uint32_t seed);
00063   
00065   double uniform01(void)
00066   {
00067     return uni_();
00068   }
00069   
00075   double uniformReal(double lower_bound, double upper_bound)
00076   {
00077     return (upper_bound - lower_bound) * uni_() + lower_bound;
00078   }
00079 
00081   double gaussian01(void)
00082   {
00083     return normal_();
00084   }
00085   
00087   double gaussian(double mean, double stddev)
00088   {
00089     return normal_() * stddev + mean;
00090   }
00091   
00095   void quaternion(double value[4]);
00096   
00098   int uniformInteger(int min, int max)
00099   {
00100     boost::uniform_int<> dis(min, max);  
00101     return dis(generator_);
00102   }
00103 
00107   boost::uint32_t getFirstSeed();
00108   
00109 private:
00110   
00111   boost::mt19937                                                           generator_;
00112   boost::uniform_real<>                                                    uniDist_; 
00113   boost::normal_distribution<>                                             normalDist_;
00114   boost::variate_generator<boost::mt19937&, boost::uniform_real<> >        uni_;  
00115   boost::variate_generator<boost::mt19937&, boost::normal_distribution<> > normal_;
00116 };
00117 
00118 }
00119 
00120 #endif


random_numbers
Author(s): Ioan Sucan
autogenerated on Sat Mar 3 2018 04:02:50