set_region_data()

void MayaFlux::Kakshya::PlotContainer::set_region_data ( const Region &  region, const std::vector< DataVariant > &  data  )

overridevirtual

Write a sample range back into a series.

Same coordinate convention as get_region_data(). The first DataVariant in data must hold vector<double>. Used by Context drag handlers for wavetable editing and interactive signal manipulation.

Implements MayaFlux::Kakshya::NDDataContainer.

Definition at line 245 of file PlotContainer.cpp.

{
    if (data.empty() || region.start_coordinates.empty())
        return;
 
    const uint64_t series_idx = region.start_coordinates[0];
    if (series_idx >= m_data.size())
        return;
 
    auto* dst = std::get_if<std::vector<double>>(&m_data[series_idx]);
    if (!dst)
        return;
 
    const auto* src = std::get_if<std::vector<double>>(&data[0]);
    if (!src || src->empty())
        return;
 
    const uint64_t s = (region.start_coordinates.size() > 1) ? region.start_coordinates[1] : 0;
    const uint64_t e = (region.end_coordinates.size() > 1)
        ? std::min(region.end_coordinates[1], static_cast<uint64_t>(dst->size() - 1))
        : static_cast<uint64_t>(dst->size() - 1);
 
    if (s > e)
        return;
 
    const uint64_t n = std::min<uint64_t>(src->size(), e - s + 1);
    std::copy_n(src->begin(), n, dst->begin() + static_cast<ptrdiff_t>(s));
}

References MayaFlux::Kakshya::Region::end_coordinates, m_data, and MayaFlux::Kakshya::Region::start_coordinates.