src/misc.c


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#include "misc.h"

double linearConversion(double min_from, double max_from, double value,
                        double min_to, double max_to, bool clip) {
    // prevent division by zero
    if (max_from == min_from) {
        return min_to;
    }

    // main formula
    double result = min_to + (value - min_from) * (max_to - min_to) / (max_from - min_from);

    // check clipping
    if (clip) {
        if (result < min_to) {
            result = min_to;
        } else if (result > max_to) {
            result = max_to;
        }
    }

    return result;
}