RandomFieldUtilityFunctions.hpp

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*/
 
#ifndef RANDOMFIELDUTILITYFUNCTIONS_HPP
#define RANDOMFIELDUTILITYFUNCTIONS_HPP
 
#include <numeric>
 
namespace random_field {
 
    namespace detail {
        inline double ReshapeAux(const double val)
        {
            double dist_from_half = 2.0 * (0.5 - std::abs(0.5 - std::abs(val)));
            double strength = (1.0 - std::abs(val)) + dist_from_half * 0.2;
            return val * (1.0 - 0.18 * strength);
        };
    }
 
    inline double Reshape(const double val) {
        using namespace detail;
        return ReshapeAux(ReshapeAux(val));
    }
}
 
#endif /* RANDOMFIELDUTILITYFUNCTIONS_HPP */