该程序基于MFC平台实现了经典的道格拉斯算法，示例数据jpl_vegetation_grass.txt也包含在工程中，首先显示读取并显示示例数据，经过道格拉斯抽样后输出抽样结果Data.txt,并进行显示-The program implements classic Douglas algorithms based on the platform of MFC , sample data jpl_vegetation_grass.txt is also included in the proje