interpolate()

void MayaFlux::Yantra::interpolate ( std::span< double >  input, std::vector< double > &  output, uint32_t  target_size  )

inline

Definition at line 603 of file MathematicalHelper.hpp.

{
    auto indices = std::views::iota(size_t { 0 }, target_size);
 
    std::ranges::transform(indices, output.begin(),
        [&input, target_size](size_t i) {
            double pos = static_cast<double>(i) * double(input.size() - 1) / (target_size - 1);
            auto idx = static_cast<size_t>(pos);
            double frac = pos - (double)idx;
 
            if (idx + 1 < input.size()) {
                return input[idx] * (1.0 - frac) + input[idx + 1] * frac;
            }
 
            return input[idx];
        });
}

References interpolate().

Referenced by interpolate(), interpolate_linear(), interpolate_linear(), transform_time_stretch(), and transform_time_stretch().

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