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21 lines
540 B
C++
21 lines
540 B
C++
#pragma once
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#include <cmath>
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inline double interpolateLinear(double min, double max, double ratio)
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{
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return min + (max - min) * ratio;
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}
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/** It is linear interpolation in logarithmic coordinates.
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* Exponential interpolation is related to linear interpolation
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* exactly in same way as geometric mean is related to arithmetic mean.
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* 'min' must be greater than zero, 'ratio' must be from 0 to 1.
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*/
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inline double interpolateExponential(double min, double max, double ratio)
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{
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return min * std::pow(max / min, ratio);
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}
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