pcd2pgm的launch文件实现
1.新建工作空间和克隆代码
mkdir -p pcd2pgm_launch/src && cd pcd2pgm_launch/src 
git clone https://github.com/Hinson-A/pcd2pgm_package 
2. 编译
cd ..
catkin_make -j4 
3.修改launch
在launch文件目录下,可以用gedit 打开launch文件,也可以用vscode(如果有安装的话)
gedit run.launch 
修改如下:

4.运行launch
source devel/setup.bash 
roslaunch pcd2pgm run.launch 
 
5.新建终端,运行map_server
rosrun map_server map_saver 
6.关闭launch,即可在pcd2pgm_launch文件夹下保存.pgm和.yaml文件
