中文说明：此代码在一般的三维模型归一化技术上使用了WISR技术，在特征提取和识别上有广泛应用，有很好的适应性，操作对象为STL文件，或者PLY文件。
English Description：
This code in use on the General model of three dimensional normalization technology WISR technology is widely used in feature extraction and recognition, has a good adaptability, manipulating objects as STL files, or PLY files.