las文件读取，转换程序。包含las转txt,las转shp等。从国外某大学上下载的开源代码。-las file read, the conversion process. Includes las transferred txt, las switch shp so. A university from abroad to download open-source code.

用于转换点云数据格式，txt格式转换为常见的las格式，方便处理(Used to convert point cloud data format, TXT format into a common Las format, easy to handle)