diff --git a/main.py b/main.py
index a51cd62..be63873 100644
--- a/main.py
+++ b/main.py
@@ -2,25 +2,29 @@ import argparse
 from datetime import timedelta
 from odm_preprocess import PreprocessConfig, ImagePreprocessor
 
+
 def parse_args():
     parser = argparse.ArgumentParser(description='ODM预处理工具')
-    
+
     # 必需参数
     parser.add_argument('--image_dir', required=True, help='输入图片目录路径')
     parser.add_argument('--output_dir', required=True, help='输出目录路径')
-    
+
     # 可选参数
-    parser.add_argument('--mode', default='重建模式', choices=['快拼模式', '三维模式', '重建模式'], help='处理模式')
+    parser.add_argument('--mode', default='三维模式',
+                        choices=['快拼模式', '三维模式', '重建模式'], help='处理模式')
     parser.add_argument('--grid_size', type=float, default=800, help='网格大小(米)')
-    parser.add_argument('--grid_overlap', type=float, default=0.05, help='网格重叠率')
-    parser.add_argument('--produce_dem', action='store_true', help='是否生成DEM')
-    
+    parser.add_argument('--grid_overlap', type=float,
+                        default=0.05, help='网格重叠率')
+    # parser.add_argument('--produce_dem', action='store_true', help='是否生成DEM')
+
     args = parser.parse_args()
     return args
 
+
 def main():
     args = parse_args()
-    
+
     # 创建配置
     config = PreprocessConfig(
         image_dir=args.image_dir,
@@ -28,8 +32,8 @@ def main():
         mode=args.mode,
         grid_size=args.grid_size,
         grid_overlap=args.grid_overlap,
-        produce_dem=args.produce_dem,
-        
+        produce_dem=True,
+
         # 其他参数使用默认值
         cluster_eps=0.01,
         cluster_min_samples=5,
@@ -41,10 +45,11 @@ def main():
         filter_dense_distance_threshold=10,
         filter_time_threshold=timedelta(minutes=5),
     )
-    
+
     # 创建处理器并执行
     processor = ImagePreprocessor(config)
     processor.process()
 
+
 if __name__ == '__main__':
-    main()
\ No newline at end of file
+    main()
diff --git a/odm_preprocess.py b/odm_preprocess.py
index a5b5871..522ccb8 100644
--- a/odm_preprocess.py
+++ b/odm_preprocess.py
@@ -282,6 +282,7 @@ class ImagePreprocessor:
         if self.config.mode == "快拼模式":
             self.merge_tif(successful_grid_points, self.config.produce_dem)
         elif self.config.mode == "三维模式":
+            self.merge_tif(successful_grid_points, self.config.produce_dem)
             # self.merge_ply(successful_grid_points)
             # self.merge_obj(successful_grid_points, translations)
             self.convert_obj(successful_grid_points)
diff --git a/odm_preprocess_fast.py b/odm_preprocess_fast.py
index 128754a..3939ae2 100644
--- a/odm_preprocess_fast.py
+++ b/odm_preprocess_fast.py
@@ -282,6 +282,7 @@ class ImagePreprocessor:
         if self.config.mode == "快拼模式":
             self.merge_tif(successful_grid_points, self.config.produce_dem)
         elif self.config.mode == "三维模式":
+            self.merge_tif(successful_grid_points, self.config.produce_dem)
             # self.merge_ply(successful_grid_points)
             # self.merge_obj(successful_grid_points, translations)
             self.convert_obj(successful_grid_points)