emaFilter.hpp

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/*
 * This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/.
 */
#pragma once
 
#include "okapi/api/filter/filter.hpp"
 
namespace okapi {
class EmaFilter : public Filter {
  public:
  explicit EmaFilter(double ialpha);
 
  double filter(double ireading) override;
 
  double getOutput() const override;
 
  virtual void setGains(double ialpha);
 
  protected:
  double alpha;
  double output = 0;
  double lastOutput = 0;
};
} // namespace okapi