Method write_voxel_elements

src/IO/PLYWriter.cpp:286–319

}

void PLYWriter::write_voxel_elements(Mesh& mesh, p_ply& ply) {
    const size_t num_voxels = mesh.get_num_voxels();
    if (num_voxels == 0) return;
    const size_t num_vertex_per_voxel = mesh.get_vertex_per_voxel();
    const VectorI& voxels = mesh.get_voxels();

    std::vector<const VectorF*> attributes;
    std::vector<size_t> per_voxel_sizes;
    for (NameArray::const_iterator itr = m_voxel_attr_names.begin();
            itr != m_voxel_attr_names.end(); itr++) {
        const std::string& name = *itr;
        const VectorF& attr = mesh.get_attribute(name);
        attributes.push_back(&attr);
        assert(attr.size() % num_voxels == 0);
        per_voxel_sizes.push_back(attr.size() / num_voxels);
    }

    const size_t num_attributes = attributes.size();
    for (size_t i=0; i<num_voxels; i++) {
        ply_write(ply, num_vertex_per_voxel);
        for (size_t j=0; j<num_vertex_per_voxel; j++) {
            ply_write(ply, voxels[i*num_vertex_per_voxel + j]);
        }
        for (size_t j=0; j<num_attributes; j++) {
            const size_t per_voxel_size = per_voxel_sizes[j];
            if (per_voxel_size != 1) {
                ply_write(ply, per_voxel_size);
            }
            for (size_t k=0; k<per_voxel_size; k++) {
                ply_write(ply, attributes[j]->coeff(i*per_voxel_size + k));
            }
        }
    }
}