curveinterpolator.h

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#ifndef _CurveInterpolator_H_
#define _CurveInterpolator_H_
 
#include "transform.h"
 
namespace sensesp {
 
class CurveInterpolator : public FloatTransform {
 public:
  class Sample {
   public:
    float input;
    float output;
 
    Sample();
    Sample(float input, float output);
    Sample(JsonObject& obj);
 
    friend bool operator<(const Sample& lhs, const Sample& rhs) {
      return lhs.input < rhs.input;
    }
  };
 
 public:
  CurveInterpolator(std::set<Sample>* defaults = NULL, String config_path = "");
 
  // Set and retrieve the transformed value
  void set_input(float input, uint8_t input_channel = 0) override;
 
  // Web UI configuration methods
  CurveInterpolator* set_input_title(String input_title) {
    input_title_ = input_title;
    return this;
  }
  CurveInterpolator* set_output_title(String output_title) {
    output_title_ = output_title;
    return this;
  }
 
  // For reading and writing the configuration of this transformation
  virtual void get_configuration(JsonObject& doc) override;
  virtual bool set_configuration(const JsonObject& config) override;
  virtual String get_config_schema() override;
 
  // For manually adding sample points
  void clear_samples();
 
  void add_sample(const Sample& new_sample);
 
  const std::set<Sample>& get_samples() const { return samples_; }
 
 protected:
  std::set<Sample> samples_;
  String input_title_ = "Input";
  String output_title_ = "Output";
};
 
}  // namespace sensesp
 
#endif