中国地图的shpfile文件，来源于国家基础地理信息中心，可通过matlab、global mapper或者其他软件转为GMT识别的数据格式。(The shpfile file of China map comes from the national basic geographic information center. It can be converted to the data format recognized by GMT through MATLAB, global mapper

栅格地图创建，可以根据需要更改地图大小和障碍物的数量(Raster map creation, you can change the size of the map and the number of obstacles as needed)