diff --git a/src/convert_file.rs b/src/convert_file.rs
index b66d88d..6ccc2af 100644
--- a/src/convert_file.rs
+++ b/src/convert_file.rs
@@ -1,7 +1,8 @@
 extern crate rayon;
 use rayon::prelude::*;
 
-use crate::{convert_pointcloud, create_station_file, StationPoint};
+use crate::convert_pointcloud::convert_pointcloud;
+use crate::stations::{create_station_file, StationPoint};
 use anyhow::{Context, Result};
 use std::{collections::HashMap, sync::Mutex};
 
diff --git a/src/lib.rs b/src/lib.rs
index 8a11727..81d6f1a 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -17,6 +17,5 @@ mod stations;
 mod utils;
 
 pub use self::convert_file::convert_file;
+pub use self::convert_point::convert_point;
 pub use self::convert_pointcloud::convert_pointcloud;
-pub use self::stations::StationPoint;
-pub use self::stations::{create_station_file, create_station_point, get_sum_coordinates};
diff --git a/src/stations.rs b/src/stations.rs
index 143eb37..b68d377 100644
--- a/src/stations.rs
+++ b/src/stations.rs
@@ -18,7 +18,7 @@ pub struct StationPoint {
     pub z: f64,
 }
 
-pub fn create_station_point(sum_coordinate: (f64, f64, f64), count: f64) -> StationPoint {
+pub(crate) fn create_station_point(sum_coordinate: (f64, f64, f64), count: f64) -> StationPoint {
     StationPoint {
         x: sum_coordinate.0 / count,
         y: sum_coordinate.1 / count,
@@ -26,7 +26,7 @@ pub fn create_station_point(sum_coordinate: (f64, f64, f64), count: f64) -> Stat
     }
 }
 
-pub fn create_station_file(
+pub(crate) fn create_station_file(
     output_path: String,
     stations: Mutex<HashMap<usize, StationPoint>>,
 ) -> Result<()> {
@@ -38,7 +38,7 @@ pub fn create_station_file(
     Ok(())
 }
 
-pub fn get_sum_coordinates(
+pub(crate) fn get_sum_coordinates(
     sum_coordinates: (f64, f64, f64),
     point: &e57::Point,
 ) -> (f64, f64, f64) {
diff --git a/src/utils.rs b/src/utils.rs
index 031e749..450161d 100644
--- a/src/utils.rs
+++ b/src/utils.rs
@@ -1,26 +1,6 @@
 use anyhow::{Context, Result};
-use clap::Parser;
 use std::path::{Path, PathBuf};
 
-#[derive(Parser)]
-#[command(author, version, about, long_about = None)]
-struct Args {
-    #[arg(short, long)]
-    path: String,
-
-    #[arg(short, long, default_value_t = String::from("./"))]
-    output: String,
-
-    #[arg(short = 'P', long, default_value_t = false)]
-    progress: bool,
-
-    #[arg(short = 'D', long, default_value_t = false)]
-    debug: bool,
-
-    #[arg(short = 'T', long, default_value_t = 0)]
-    threads: usize,
-}
-
 pub(crate) fn construct_las_path(output_path: &String, index: usize) -> Result<PathBuf> {
     let output_sub_dir_path = Path::new(&output_path).join("las");