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Rice.cpp

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 * A PARTICULAR PURPOSE.  See the GNU Lesser General Public License for more
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#include <WNS/distribution/Rice.hpp>

using namespace wns::distribution;

STATIC_FACTORY_REGISTER_WITH_CREATOR(
    Rice,
    Distribution,
    "Rice",
    wns::PyConfigViewCreator);
STATIC_FACTORY_REGISTER_WITH_CREATOR(
    Rice,
    Distribution,
    "Rice",
    wns::distribution::RNGConfigCreator);

Rice::Rice(double losFactor, double variance, wns::rng::RNGen* rng) :
    Distribution(rng),
    losFactor_(losFactor),
    variance_(variance), 
    disA_(losFactor_, variance_ * variance_, getRNG()),
    disB_(0.0, variance_ * variance_, getRNG())
{
}

Rice::Rice(const pyconfig::View& config) :
    Distribution(),
    losFactor_(config.get<double>("losFactor")), 
    variance_(config.get<double>("variance")), 
    disA_(losFactor_, variance_*variance_, getRNG()),
    disB_(0.0, variance_ * variance_, getRNG())
{
}

Rice::Rice(wns::rng::RNGen* rng, const pyconfig::View& config) :
    Distribution(rng),
    losFactor_(config.get<double>("losFactor")), 
    variance_(config.get<double>("variance")), 
    disA_(losFactor_, variance_*variance_, getRNG()),
    disB_(0.0, variance_ * variance_, getRNG())
{
}


Rice::~Rice()
{
}

double
Rice::operator()()
{
    double rnd_a    = disA_();
    double rnd_b    = disB_();

    return sqrt(rnd_a * rnd_a + rnd_b * rnd_b);
}

std::string
Rice::paramString() const
{
    std::ostringstream tmp;
    tmp << "Rice(LOS Factor=" << losFactor_ << " variance=" << variance_ << ")";
    return tmp.str();
}

/*
  Local Variables:
  mode: c++
  fill-column: 80
  c-basic-offset: 8
  c-comment-only-line-offset: 0
  c-tab-always-indent: t
  indent-tabs-mode: t
  tab-width: 8
  End:
*/

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