random_util.cpp
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00001 // -*- mode: c++ -*-
00002 /*********************************************************************
00003  * Software License Agreement (BSD License)
00004  *
00005  *  Copyright (c) 2015, JSK Lab
00006  *  All rights reserved.
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00008  *  Redistribution and use in source and binary forms, with or without
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00011  *
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00035 
00036 #include "jsk_recognition_utils/random_util.h"
00037 #include <iostream>
00038 
00039 namespace jsk_recognition_utils
00040 {
00041   double randomGaussian(double mean, double var, boost::mt19937& gen)
00042   {
00043     if (var == 0.0) {
00044       return mean;
00045     }
00046     else {  
00047       boost::normal_distribution<> dst(mean, sqrt(var));
00048       boost::variate_generator<
00049         boost::mt19937&,
00050         boost::normal_distribution<> > rand(gen, dst);
00051       return rand();
00052     }
00053   }
00054   
00055   double randomUniform(double min, double max, boost::mt19937& gen)
00056   {
00057     // Ensure min < max
00058     double amin = std::min(min, max);
00059     double amax = std::max(min, max);
00060     boost::uniform_real<> dst(amin, amax);
00061     boost::variate_generator<
00062       boost::mt19937&,
00063       boost::uniform_real<> > rand(gen, dst);
00064     return rand();
00065   }
00066 }


jsk_recognition_utils
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autogenerated on Wed Sep 16 2015 04:36:01