Before looking too and learned ros, also recorded on the blog.
Personally I think that the technology of learning, from the macro level, it takes roughly two points: combination of theory and practice of repetition.
Read it again do not understand, it does not matter, go use.
Do not use the order in the study.
After I learned seemed to understand, and then practice the consolidation.
************************************************** ******** nonsense dividing line ************************************** ********************************
A configuration environment
I use Ubuntu16 and ROS Kinetic Kame, before the concrete realization blog there.
Use the command to view the results after configured.
export | grep ROS
echo $ROS_PACKAGE_PATH
Note: You need to run every time you open the following termination to use ros
source /opt/ros/indigo/setup.shTherefore, we added directly to the ~ / .bashrc as follows:
The source devel setup.bash the update package ros (doubt, be verified update)
Two introductory package
Development ros package in two ways: rosbuild and catkin space.
rosbuild already old-fashioned way, we advance with the times with catkin.
Create a package
Catkin_ws space created in the root directory, the new source folder src.
Command in the src directory catkin_create_pkg create a new package, and instructions dependent package.
Package called test-hedq later are dependent.
package introduced
Package structure.
package.xml is a description of the package.
package compilation
After you create is compile, use the command catkin_make
These are compile a specific packet, if the compiler catkin_ws all packages directly catkin_make without parameters.
Three commonly used commands introduced in ros
查看某个包的所有依赖
当然，也可以查看一级依赖 depnds1
roscd rosls是ros系统中的命令 对应bash 中的cd ls 跳转某个包下，展示所有子文件。
