write_curves_sample()

bool MayaFlux::IO::SpatialCache::write_curves_sample ( const std::string &  stream_name, const SpatialSample &  sample  )

private

Definition at line 286 of file SpatialCache.cpp.

{
    const size_t expected_vertex_count = std::accumulate(
        sample.vertex_counts_per_curve.begin(), sample.vertex_counts_per_curve.end(), size_t { 0 },
        [](size_t acc, int32_t n) { return acc + static_cast<size_t>(n); });
    if (expected_vertex_count != sample.positions.size()) {
        set_error("write: vertex_counts_per_curve sum does not match positions.size()");
        MF_ERROR(Journal::Component::IO, Journal::Context::FileIO,
            "SpatialCache::write: '{}': {}", stream_name, get_last_error());
        return false;
    }
 
    auto it = m_impl->curves_streams.find(stream_name);
    if (it == m_impl->curves_streams.end()) {
        MetaData md;
        auto mit = m_impl->pending_metadata.find(stream_name);
        if (mit != m_impl->pending_metadata.end()) {
            md = mit->second;
            m_impl->pending_metadata.erase(mit);
        }
        auto stream = std::make_unique<CurvesStream>();
        stream->object = OCurves(m_impl->archive->getTop(), stream_name, md);
        it = m_impl->curves_streams.emplace(stream_name, std::move(stream)).first;
    }
    auto& stream = *it->second;
    auto& schema = stream.object.getSchema();
 
    const P3fArraySample pos_sample(
        reinterpret_cast<const V3f*>(sample.positions.data()), sample.positions.size());
    const Int32ArraySample nverts_sample(
        sample.vertex_counts_per_curve.data(), sample.vertex_counts_per_curve.size());
 
    schema.set(OCurvesSchema::Sample(pos_sample, nverts_sample, kLinear, kNonPeriodic));
 
    for (const auto& attr : sample.attributes) {
        const size_t expected = curves_attribute_count(
            attr.scope, sample.positions.size(), sample.vertex_counts_per_curve.size());
        if (!set_attribute(stream.geom_params, schema.getArbGeomParams(), attr, expected)) {
            set_error("write: attribute '" + attr.name + "' has an unsupported type, wrong "
                + "element count, or was redeclared with a different type");
            MF_ERROR(Journal::Component::IO, Journal::Context::FileIO,
                "SpatialCache::write: '{}': {}", stream_name, get_last_error());
            return false;
        }
    }
 
    return true;
}

References MayaFlux::IO::SpatialSample::attributes, MayaFlux::Journal::FileIO, get_last_error(), MayaFlux::Journal::IO, m_impl, MF_ERROR, MayaFlux::IO::SpatialSample::positions, set_error(), stream, and MayaFlux::IO::SpatialSample::vertex_counts_per_curve.

Referenced by write().

Here is the call graph for this function:

Here is the caller graph for this function: