ExponentialFunction.hh

#ifndef GRAIL_EXPONENTIAL_FUNCTION_H
#define GRAIL_EXPONENTIAL_FUNCTION_H
 
#include <cmath>
#include "Curve.hh"
 
namespace grail
{
    namespace curves
    {
        template <typename ContextType>
        class ExponentialFunction final : public Curve<ContextType>
        {
        public:
            ExponentialFunction(std::shared_ptr<utility::Evaluator<ContextType>> childEvaluator, float base)
                : Curve<ContextType>{childEvaluator}, base{base}
            {
            }
 
            virtual float Sample(float argument) const override final
            {
                return std::pow(base, argument);
            }
 
            float GetBase() const { return base; }
            virtual EvaluatorType GetEvaluatorType() const override final { return EvaluatorType::CURVE_EXPONENTIAL; }
 
        private:
            float base = 0.0f;
        };
    }
}
 
#endif // GRAIL_EXPONENTIAL_FUNCTION_H