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// ************************************************************************************************
//
// BornAgain: simulate and fit reflection and scattering
//
//! @file Fit/Param/Parameter.cpp
//! @brief Implements class Parameter.
//!
//! @homepage http://www.bornagainproject.org
//! @license GNU General Public License v3 or higher (see COPYING)
//! @copyright Forschungszentrum Jülich GmbH 2018
//! @authors Scientific Computing Group at MLZ (see CITATION, AUTHORS)
//
// ************************************************************************************************
#include "Fit/Param/Parameter.h"
#include <cmath>
#include <utility>
namespace {
const double default_step = 0.01;
const double step_factor = 0.01;
double step_for_value(double value)
{
return value == 0.0 ? default_step : std::abs(value) * step_factor;
}
} // namespace
using namespace mumufit;
Parameter::Parameter()
: m_start_value(0.0)
, m_value(0.0)
, m_step(0.0)
, m_error(0.0)
{
}
Parameter::Parameter(const std::string& name, double value, const AttLimits& limits, double step)
: m_name(name)
, m_start_value(value)
, m_value(value)
, m_step(step)
, m_error(0.0)
, m_limits(limits)
{
if (step <= 0.0)
m_step = step_for_value(value);
}
void Parameter::setValue(double value)
{
m_value = value;
}
void Parameter::setError(double value)
{
m_error = value;
}
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