mirror of https://github.com/rusefi/rusefi.git
32 lines
804 B
C++
32 lines
804 B
C++
#include "pch.h"
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#include "linear_func.h"
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void LinearFunc::configure(float in1, float out1, float in2, float out2, float minOutput, float maxOutput) {
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m_minOutput = minOutput;
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m_maxOutput = maxOutput;
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in1 = in1 / m_divideInput;
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in2 = in2 / m_divideInput;
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m_a = INTERPOLATION_A(in1, out1, in2, out2);
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m_b = out1 - m_a * in1;
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}
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SensorResult LinearFunc::convert(float inputValue) const {
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float result = m_a * inputValue + m_b;
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// Bounds checks
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// Flipped error codes in case of m_a < 0 so that they indicate whether the input
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// voltage is high/low, instead of the output high/low
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if (result > m_maxOutput) {
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return m_a > 0 ? UnexpectedCode::High : UnexpectedCode::Low;
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}
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if (result < m_minOutput) {
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return m_a > 0 ? UnexpectedCode::Low : UnexpectedCode::High;
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}
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return result;
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}
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