Add code/cube3d/training/dat_mapping.py

code/cube3d/training/dat_mapping.py

@@ -0,0 +1,62 @@
+import os
+import json
+
+# 处理单个ldr文件数据（统一转为小写，不区分大小写）
+def process_ldr_data(lines, label_mapping, label_inverse_mapping, label_counter):
+    filenames = []
+    all_labels = []
+
+    for line in lines:
+        if line.startswith('1'):  # 只处理零件数据行
+            parts = line.split()
+            if len(parts) < 15:  # 增加简单的边界检查
+                print(f"Skipping invalid line: {line.strip()}")
+                continue
+
+            # 核心修改：将文件名统一转为小写（包括后缀DAT/dat）
+            filename = parts[14].lower()  # 例如 Brick1.DAT → brick1.dat
+            print(f"Processing file: {filename}")
+            
+            if filename not in label_mapping:
+                label_mapping[filename] = label_counter
+                label_inverse_mapping[label_counter] = filename
+                label_counter += 1
+            all_labels.append(label_mapping[filename])
+
+    return label_mapping, label_inverse_mapping, label_counter
+
+# 处理一个文件夹中的所有ldr文件
+def process_all_ldr_in_folder(folder_path):
+    overall_label_mapping = {}
+    overall_label_inverse_mapping = {}
+    label_counter = 0
+
+    for root, dirs, files in os.walk(folder_path):
+        for file in files:
+            if file.endswith('.ldr'):
+                file_path = os.path.join(root, file)
+                with open(file_path, 'r') as f:
+                    lines = f.readlines()
+                    overall_label_mapping, overall_label_inverse_mapping, label_counter = process_ldr_data(
+                        lines, overall_label_mapping, overall_label_inverse_mapping, label_counter)
+
+    return overall_label_mapping, overall_label_inverse_mapping
+
+# 保存mapping到文件
+def save_mappings(label_mapping, label_inverse_mapping, output_dir):
+    os.makedirs(output_dir, exist_ok=True)
+    
+    with open(os.path.join(output_dir, 'label_mapping.json'), 'w') as f:
+        json.dump(label_mapping, f, indent=4)
+    
+    with open(os.path.join(output_dir, 'label_inverse_mapping.json'), 'w') as f:
+        json.dump(label_inverse_mapping, f, indent=4)
+
+
+if __name__ == "__main__":
+    input_folder = '/public/home/wangshuo/gap/assembly/data/car_1k/subset_bottom_300/ldr_rot_expand_trans'
+    output_folder = '/public/home/wangshuo/gap/assembly/data/car_1k/subset_bottom_300'
+
+    label_mapping, label_inverse_mapping = process_all_ldr_in_folder(input_folder)
+    save_mappings(label_mapping, label_inverse_mapping, output_folder)
+    print(f"Label mappings have been saved to {output_folder}")