No map is displayed in rviz

[yangjiongfeng]

hello
i have been run
1.roslaunch lio test_indoor.launch
2.roslaunch lio map_4D_indoor.launch
3.rosbag play fast1.bag
but ,No map is displayed in rviz
What's wrong with me?

[hyye]

I guess it could related to the communication problem in ROS. Could you close all your launches and start roscore first, before you start other launches and rosbag?
rostopic or rqt_graph commands can also help you debug with this problem.

BTW, please make sure the code is built with Release option.

[yangjiongfeng]

I have been restart many times，
But as a result, also no map was displayed on rviz 。
What's your WeChat or Email number?

[hyye]

Can you make sure if you build the code with Release option? As I replied here #2 (comment).

[hyye]

Try to use catkin build -DCMAKE_BUILD_TYPE=Release lio or catkin_make -DCMAKE_BUILD_TYPE=Release to rebuild the project.

[yangjiongfeng]

Thank you！
when i try to use catkin build -DCMAKE_BUILD_TYPE=Release ，I've solved the problem 。
why you project need use catkin build -DCMAKE_BUILD_TYPE=Release but not catkin_make?

[hyye]

Glad to help!
It is not catkin build or catkin_make making differences, but the CMAKE_BUILD_TYPE.
Typically, catkin build or catkin_make will not trigger the Release flag.

[yangjiongfeng]

i have build map use you code.
now,i run rosrun rqt_tf_tree rqt_tf_tree,can show de tf_tree

and then,i run rqt_graph
show

only /local/full_point between lio_estimator and lio_map_builder,
but you code have four subscribe

why build the map only use one subscribe？

[hyye]

It should be four instead of only one, if it run properly.
Maybe some of the programs (nodes) are exited.