get_data_at()

void * MayaFlux::Nodes::Network::TopologyOperator::get_data_at ( size_t  global_index )

overrideprotectedvirtual

Get mutable access to point at global index.

Returns

Pointer to vertex data, or nullptr if index invalid

Subclasses must implement to provide per-point access

Implements MayaFlux::Nodes::Network::GraphicsOperator.

Definition at line 312 of file TopologyOperator.cpp.

{
    size_t offset = 0;
    for (auto& group : m_topologies) {
        if (global_index < offset + group->get_point_count()) {
            size_t local_index = global_index - offset;
            return &group->get_points()[local_index];
        }
        offset += group->get_point_count();
    }
    return nullptr;
}

References get_point_count(), m_topologies, and offset.

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