rebuild_spatial_neighbors()

void MayaFlux::Nodes::Network::ParticleNetwork::rebuild_spatial_neighbors ( )

private

Rebuild neighbor map for SPATIAL topology.

Definition at line 508 of file ParticleNetwork.cpp.

{
    m_neighbor_map.clear();
 
    // Simple O(n²) spatial query - could be optimized with spatial hash
    for (size_t i = 0; i < m_particles.size(); ++i) {
        glm::vec3 pos_i = m_particles[i].point->get_position();
 
        for (size_t j = i + 1; j < m_particles.size(); ++j) {
            glm::vec3 pos_j = m_particles[j].point->get_position();
            float distance = glm::length(pos_j - pos_i);
 
            if (distance < m_interaction_radius) {
                m_neighbor_map[i].push_back(j);
                m_neighbor_map[j].push_back(i);
            }
        }
    }
 
    m_neighbor_map_dirty = false;
 
    MF_DEBUG(Journal::Component::Nodes, Journal::Context::NodeProcessing,
        "Rebuilt spatial neighbor map: {} particles with neighbors",
        m_neighbor_map.size());
}

References m_interaction_radius, m_neighbor_map, m_neighbor_map_dirty, m_particles, MF_DEBUG, MayaFlux::Journal::NodeProcessing, and MayaFlux::Journal::Nodes.

Referenced by apply_interaction_forces(), and initialize().

Here is the caller graph for this function: