Image view is empty

[coffee226]

Hello. I am having problems showing anything in my image view when I follow the "creating a map with Erle-Rover" example. all i get is a blank view. does anyone have suggestions or steps I should follow?

terminal1:
roslaunch ros_erle_rover_navigation roverslam.launch (slam + include rviz)

terminal2:
rosrun hector_compressed_map_transport map_to_image_node

terminal3:
rosrun image_view image_view image:=/map_image/full imagetransport:=compressed

so what I am getting is this:

i think it is related to why i am having problems with /scan publishing anything.

[LanderU]

Hi @coffee226,

have you configured properly your environment?

http://docs.erlerobotics.com/robot_operating_system/ros/basic_concepts/configure%20your_network

Regards,

@LanderU

[coffee226]

I have run both commands on erle brain and my base station. I still get a blank image view.

[TimotheeMo]

For me it worked, I can see an image in /map/full

in EB3= export ROS_MASTER_IP=http://192.168.1.222:11311
export ROS_IP=192.168.1.222

on pc export ROS_MASTER_IP=http://192.168.1.222:11311
export ROS_IP=192.168.1.161

on your pc do a ifconfig & look at wlan0 ip address & compare it with your ROS_IP. If you open another command prompt, retype ROS_MASTER_URI & ROS_IP and then
rosrun hector_compressed_map_transport map_to_image_node
Open another cmd prompt -> type your ROS_MASTER_URI & ROS_IP values and then type
rosrun image_view image_view image:=/map_image/full imagetransport:=compressed. You should see an image now. I am know looking at hector_slam and for now it won't update the map when i move rplidar a2 on the rover. When I connect the lidar on my pc, hector_slam will update the map but have a weired map in the end

[coffee226]

HI. it seems i have missed that i have to use my current ip addresses, since im not using the brain as an access point, but as a client in a network.

i cant run rosrun hector_cpressed_map_transport map_to_image_node anymore, as i get this

[coffee226]

i can also no longer connect to the brain using APM planner under UDP 6000

[coffee226]

now i can connect to APM, but this is the error i get with running roverslam.launch

[coffee226]

did a fresh install for erle brain. now i am connecting to it usiing the wireless hotspot mode, brain being 10.0.0.1 and base station 10.0.0.2. doing all the same commands with the correct ip addresses, all i get is still an empty image view

[coffee226]

also, i would like to ask about this:
"Make sure the minimal software has already been launched on the robot and you have configured your network correctly."

i might have something that im missing in the erle-brain. can someone post a list of all the required software i need to have in my erle-brain?