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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}")
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