fome-fw/firmware/controllers/sensors/converters/linear_func.cpp

34 lines
942 B
C++

#include "linear_func.h"
#include "interpolation.h"
void LinearFunc::configure(float in1, float out1, float in2, float out2, float minOutput, float maxOutput) {
m_minOutput = minOutput;
m_maxOutput = maxOutput;
in1 = in1 / m_divideInput;
in2 = in2 / m_divideInput;
m_a = INTERPOLATION_A(in1, out1, in2, out2);
m_b = out1 - m_a * in1;
}
SensorResult LinearFunc::convert(float inputValue) const {
float result = m_a * inputValue + m_b;
// Bounds check
bool isValid = result <= m_maxOutput && result >= m_minOutput;
if (!isValid) {
return unexpected;
}
return result;
}
void LinearFunc::showInfo(Logging* logger, float testRawValue) const {
scheduleMsg(logger, " Linear function slope: %.2f offset: %.2f min: %.1f max: %.1f", m_a, m_b, m_minOutput, m_maxOutput);
const auto [valid, value] = convert(testRawValue);
scheduleMsg(logger, " raw value %.2f converts to %.2f valid: %d", testRawValue, value, valid);
}