 		watcher.stop();
 		watcher.synchronize();
 		watcher.print_elaspsed_time(std::cout);
-		std::string name = "C:\\Users\\JWhan\\Desktop\\DATA\\before5.xyz";
+		std::string name = "C:\\Users\\JWhan\\Desktop\\DATA\\RVD.xyz";
 		points_save_xyz(name, *x_, sample_facet_);
 		free_memory();
 	}

			points[i * 3 + 2]
		};
		
		for (index_t t = 1; t < 20; ++t){

			//load /memory[points_nn] k times.
			index_t j = points_nn[i * k + t];

			free(facets_nn_);
			facets_nn_ = nil;
		}
		//delete knn_;
	}

