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2023-07-24 19:04:18 -0500 | received badge | ● Nice Answer (source) |
2022-10-03 10:47:27 -0500 | marked best answer | how to subscribe to laser /scan topic and publish a customized scan topic back hi, i want to consider any 72 points from the 'scan' topic for my other application. Currently the lidar i am using gives around 2000 points. I want to take only 72 points out of it and publish it as a new topic 'revised_scan'. I tried with a small script in python: however, it gives me an error saying Though i can change directly in the lidars source file to publish two topics(scan & revised_scan) but I want to make this as a standard irrespective of the type of lidar I will use in the future. I appreciate if someone can help with this. |
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2021-10-12 06:46:12 -0500 | commented question | Two-way communication between master-slave not working it is expected to work in inter-distro environment also because I use noetic on master and melodic on bot. I am sure it |
2021-10-12 05:46:13 -0500 | commented answer | sensor_msgs/LaserScan.msg ==> range_max should be discarded what is the maximum range you want your lidar to read? It has to be occupied because it corresponds to some angle. Btw, |
2021-10-12 04:05:07 -0500 | commented question | Two-way communication between master-slave not working Try adding this too and see if it works.. export ROS_HOSTNAME=<laptop ip> in laptop export ROS_HOSTNAME=<robot |
2021-10-12 04:00:52 -0500 | commented question | Two-way communication between master-slave not working export ROS_MASTER_URI=http://LaptopIP::11311 ROS_IP=LaptopIP I think you have missed a export prefix before ROS_IP? |
2021-10-12 03:54:15 -0500 | edited answer | sensor_msgs/LaserScan.msg ==> range_max should be discarded Usually your lidar launch file will have a range_max parameter. You can keep it to whatever your desired value is. If th |
2021-10-12 03:53:47 -0500 | edited answer | sensor_msgs/LaserScan.msg ==> range_max should be discarded Usually your lidar launch file will have a range_max parameter. You can keep it to whatever your desired value is. If th |
2021-10-12 03:52:55 -0500 | edited answer | sensor_msgs/LaserScan.msg ==> range_max should be discarded Usually your lidar launch file will have a range_max parameter. You can keep it to whatever your desired value is. If th |
2021-10-12 03:47:36 -0500 | edited answer | sensor_msgs/LaserScan.msg ==> range_max should be discarded Usually your lidar launch file will have a range_max parameter. You can keep it to whatever your desired value is. If th |
2021-10-12 03:45:31 -0500 | edited answer | sensor_msgs/LaserScan.msg ==> range_max should be discarded Usually your lidar launch file will have a range_max parameter. You can keep it to whatever your desired value is. If th |
2021-10-12 03:45:24 -0500 | edited answer | sensor_msgs/LaserScan.msg ==> range_max should be discarded Usually your lidar launch file will have a range_max parameter. You can keep it to whatever your desired value is. If th |
2021-10-12 03:44:45 -0500 | edited answer | sensor_msgs/LaserScan.msg ==> range_max should be discarded Usually your lidar launch file will have a range_max parameter. You can keep it to whatever your desired value is. If th |
2021-10-12 03:44:27 -0500 | received badge | ● Rapid Responder (source) |
2021-10-12 03:44:27 -0500 | answered a question | sensor_msgs/LaserScan.msg ==> range_max should be discarded Usually your lidar launch file will have a range_max parameter. You can keep it to whatever your desired value is. If th |
2021-10-12 01:00:59 -0500 | edited answer | ImportError: dynamic module does not define module export function (PyInit__tf2) As @mgruhler and @gvdhoom pointed out, yes, prenoetic with python3 will land you in so many problems. its better to swit |
2021-10-11 06:54:30 -0500 | received badge | ● Notable Question (source) |
2021-10-11 06:34:23 -0500 | edited answer | Usage of rosbridge with python Try this for python. pip3 install roslibpy roslibpy works for non-ros/windows env too. import time import roslib |
2021-10-11 06:33:37 -0500 | answered a question | Usage of rosbridge with python Try this for python. pip3 install roslibpy roslibpy works for non-ros/windows env too. import time import roslib |
2021-10-11 06:12:40 -0500 | answered a question | rosbridge websocket server over internet Its been quite long since this thread came up but hope you have figured your way out of this problem. I was facing the s |
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2021-07-13 05:23:49 -0500 | commented question | Problem finding depthimage_to_laserscan executable Try opening a new terminal and source .bashrc , see if you can find the package with roscd. if yes, try launching it fro |
2021-07-08 23:48:41 -0500 | commented question | Robot position not updating in RVIZ can you provide more details? what are you trying to do? and what is your config like? |
2021-07-07 05:48:31 -0500 | commented question | min_obstacle_height seems ignored in costmap_2d with laserscan pointcloud include your sensor launch files |
2021-07-06 13:04:36 -0500 | answered a question | ImportError: dynamic module does not define module export function (PyInit__tf2) errors like these are also caused by python version problems. so change the first line of the script from #! /usr/bin/e |
2021-07-06 02:08:17 -0500 | answered a question | AMCL randomly loses localisation. for <param name="odom_model_type" value="diff-corrected"/> type robot, try to keep <param name="odom_alpha |
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2021-06-16 03:57:02 -0500 | commented question | Detecting Shapes after Euclidean Clustering were you able to solve it? |
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2021-06-10 00:13:40 -0500 | commented answer | xacro macros model not showing up in rviz(noetic) thanks @djchopp. it worked. i did not have to add an extra dummy link though. |
2021-06-10 00:12:58 -0500 | commented answer | xacro macros model not showing up in rviz(noetic) thanks @djchopp. it worked. |
2021-06-10 00:12:25 -0500 | marked best answer | xacro macros model not showing up in rviz(noetic) hi, I am trying to visualize xacro macros model on rviz which works fine in gazebo but i have few issues while visualizing it in rviz. in gazebo i am able to visualize the links, collision and inertia are properly configured but when i launch rviz i get this warning i tried and i also get robotmodel error. i tried running export my xacro files inertials.xacro materials.xacro wheel.xacro (more) |
2021-06-10 00:12:22 -0500 | commented answer | xacro macros model not showing up in rviz(noetic) thanks ranjit. for my application, drivers werent needed it was a minor robot_description error as djchopp pointed. |
2021-06-09 05:21:18 -0500 | edited question | xacro macros model not showing up in rviz(noetic) xacro macros model not showing up in rviz(noetic) hi, I am trying to visualize xacro macros model on rviz which work |
2021-06-09 05:19:49 -0500 | asked a question | xacro macros model not showing up in rviz(noetic) xacro macros model not showing up in rviz(noetic) hi, I am trying to visualize xacro macros model on rviz which work |
2021-05-28 06:25:00 -0500 | commented question | I tried simulating a differential drive robot in gazebo but it behaves strangely when controlled with teleop_twist. I am facing similar problem. did you get it working? |
2021-05-28 06:21:48 -0500 | commented question | how to detect downstairs or cliff using pointcloud @parzival I havent got started with it yet. Upon my research, i realized it is possible through segmentation using pcl. |
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2021-05-27 05:14:03 -0500 | commented answer | Simulate GPS sensor via ROS plugins (Hector_Plugins) I am working on hector gps too.. do you have a published journal or repo of your work? |
2021-05-15 20:45:28 -0500 | marked best answer | ImportError: dynamic module does not define module export function (PyInit__tf2) hi, i am trying to run a package built from source on ros melodic. when i run the command i end up with this error: from this i understood that it is conflicting with the python path but this solution did not work for me and i get the same error. is there any other way to setup catkin_ws with python3? |