control_element.hpp

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#pragma once
 
#include <string>
#include <vector>
 
// C++ port of the TypeScript control-theory toolkit by Torsten Brischalle
// (MIT, http://www.aaabbb.de). The original lives in
// Control/shared/ControlElement*.ts. Only the discrete-time simulation
// (Initialize/Calculate) and DE-optimization (OptimizeGetNumParameters /
// OptimizeSetParameters) paths are ported here — the GUI-only
// TransferFunction()/TimeFunctionStepResponse() (which depend on the Complex
// class) are intentionally omitted as they are not exercised by parameter
// estimation, controller optimization, or the simulation loop.
 
namespace libstp::autotune::control
{

class ControlElement
{
public:
    virtual ~ControlElement() = default;

    [[nodiscard]] virtual std::string getType() const = 0;

    [[nodiscard]] virtual double getLowestTimeConstant() const = 0;

    virtual void initialize(double dt) = 0;

    virtual double calculate(double u, double dt) = 0;

    [[nodiscard]] virtual int optimizeGetNumParameters() const = 0;

    virtual void optimizeSetParameters(const std::vector<double>& params,
                                       int                        startIdx) = 0;
};
 
} // namespace libstp::autotune::control