void PeriodicExploration::save_mesh(const std::string& filename) const {
auto flattened_vertices = MatrixUtils::flatten<VectorF>(m_vertices);
auto flattened_faces = MatrixUtils::flatten<VectorI>(m_faces);
auto flattened_voxels = MatrixUtils::flatten<VectorI>(m_voxels);
MeshWriter::Ptr writer = MeshWriter::create(filename);
writer->write(flattened_vertices, flattened_faces, flattened_voxels,
m_vertices.cols(), m_faces.cols(), m_voxels.cols());
}
void save_mesh(const std::string& filename,
const MatrixFr& vertices, const MatrixIr& faces) {
auto flattened_vertices = MatrixUtils::flatten<VectorF>(vertices);
auto flattened_faces = MatrixUtils::flatten<VectorI>(faces);
VectorI voxels = VectorI::Zero(0);
MeshWriter::Ptr writer = MeshWriter::create(filename);
writer->write(flattened_vertices, flattened_faces, voxels,
vertices.cols(), faces.cols(), 0);
}