Nick_JR's profile - activity

Thanks , i fixed my problem already, but the general idea is similar tou yours. The problem in my implementation was tha

Hello, I am trying to compare two occupancy grid maps "at runtime", a ground truth map and a map generated from multirobot map merge. The reason I want to crop the generated map is because the map produced by multirobot_map_merge does not have the same dimensions or center with me maps that it merges, they are slightly off. Let's say that I have a 480x480 map. Does anyone know how I can crop this map (edit the tuple given by gm message) to 450x450? I tried making the tuple into a 2d list so it can be more intuitive and then flatten it again but it doesn't work. Has anyone done this before? I would appreciate some tips. Thanks in advance.

Cropping Occupancy Grid Maps directly from msg.Data Hello, I am trying to compare two occupancy grid maps "at runtime",

Multirobot_Map_Merge: merged map width and height varies with number of robots. Hello fellow Ros developers, i am using

Multirobot_Map_Merge: merged map width and height varies with number of robots. Hello fellow Ros developers, i am using

Thanks for the quick response. First of all thanks for mentioning PCL, I didnt know it existed and i will almost certain

Multirobot_Map_Merge: merged map width and height varies with number of robots. Hello fellow Ros developers, i am using

Hello, i'm trying to merge maps generated from multiple robots in a simulation however i noticed that the map_merger package doesnt exist in ros2. Does anyone know a way to merge maps in ros2 ?

thanks.

Sadly i didn't, i went back to ros 1.

Hello wise people of the Ros Answers realm,

I have a node that performs a random walk.In order to get the information i need(pose,laser readings etc) and keep my code somewhat clean, i created 2 classes which, i instanciate passing as an argument the namespace of the robot(robot_1,robot_2 etc). In the init function of the first class i start an odom subscriber and a cmd_vel publisher while in the other class i just subscribe to the /namespace/laser_scan topic.

I launch the said node for 4-5 robots in the stage simulator and everything seem to work fine.The node is runing correctly but the cpu usage skyrockets at 100% on all cores.This happens only when i launch this node for multiple robots. Why is this happening?Im sure that i am missing something but i cant figure out what it is. Thanks in advance.

The links to the node and classes.

Robot_Class

Laser_Class

Random_Walk_Node

The CPU skyrockets when i launch a node. Hello wise people of the Ros Answers realm, I have a node that performs a rand

The CPU skyrockets when i launch a node. Hello wise people of the Ros Answers realm, I have a node that performs a rand

python class Hello wise people of the Ros Answers realm, I have a node that performs a random walk.In order to get the

python class Hello wise people of the Ros Answers realm, I have a node that performs a random walk.In order to get the

Hello i have a relatively noobish question.

I want to change some things in the gmapping.cpp file so i can get the probabilistic values of the OGM but i cant locate the file in my machine.I installed Ros through Debian packages. The thing is that I am using gmapping and i don't understand where the file could be located. I searched in the /opt/ros/melodic/share-inc-lib and i couldn't find a file that handles the change from the probabilistic values to the standard ones.

Thanks in advance.

Where is the gmapping.cpp located in an installation from deb packages? Hello i have a relatively noobish question. I w

ros2 merging maps for multi-robot exploration Hello, i'm trying to merge maps generated from multiple robots in a simul

How to merge two /odom topics Hello guys, I have 9 dif driv robots spawned in a simple gazebo world with the tf tree sho

How to merge two /odom topics Hello guys, I have 9 dif driv robots spawned in a simple gazebo world with the tf tree sho

Spawning multiple copys of a urdf model at Gazebo and Rviz I spawn 9 copies of a urdf model in a gazebo simulation and

Spawning multiple copys of a urdf model at Gazebo and Rviz I spawn 9 copies of a urdf model in a gazebo simulation and