1 | #pragma once |
2 | |
3 | #include <cmath> |
4 | |
5 | |
6 | inline double interpolateLinear(double min, double max, double ratio) |
7 | { |
8 | return min + (max - min) * ratio; |
9 | } |
10 | |
11 | |
12 | /** It is linear interpolation in logarithmic coordinates. |
13 | * Exponential interpolation is related to linear interpolation |
14 | * exactly in same way as geometric mean is related to arithmetic mean. |
15 | * 'min' must be greater than zero, 'ratio' must be from 0 to 1. |
16 | */ |
17 | inline double interpolateExponential(double min, double max, double ratio) |
18 | { |
19 | return min * std::pow(max / min, ratio); |
20 | } |
21 | |