ROS Resources: Documentation | Support | Discussion Forum | Index | Service Status | ros @ Robotics Stack Exchange |
2021-10-20 17:17:26 -0500 | received badge | ● Notable Question (source) |
2021-10-20 17:17:26 -0500 | received badge | ● Famous Question (source) |
2020-05-26 07:49:26 -0500 | received badge | ● Famous Question (source) |
2020-04-24 16:12:20 -0500 | received badge | ● Notable Question (source) |
2020-03-11 06:01:10 -0500 | commented answer | Loading controllers from yaml in namespace Got it working, thank you very much! |
2020-03-11 06:00:23 -0500 | marked best answer | Loading controllers from yaml in namespace Hi, (*Using ROS Melodic in Ubuntu) I am loading a yaml with 4 controllers + joint_state_controller in a namespace. Yaml aspect: .... Then, I try to spawn them using a controller_manager node. However, the node only finds the rosparam if I explicitly put the namespace, like that: However, the node is not able to find the param by using the --namespace arg: I would really appreciate any clue about it or what I am missing thereof. Regards, J.L Samper |
2020-03-02 02:22:15 -0500 | received badge | ● Popular Question (source) |
2020-02-29 07:17:38 -0500 | received badge | ● Supporter (source) |
2020-02-29 07:15:24 -0500 | edited question | Loading controllers from yaml in namespace Loading controllers from yaml in namespace Hi, (*Using ROS Melodic in Ubuntu) I am loading a yaml with 4 controllers + |
2020-02-29 07:15:09 -0500 | edited question | Loading controllers from yaml in namespace Loading controllers from yaml in namespace Hi, (*Using ROS Melodic in Ubuntu) I am loading a yaml with 4 controllers + |
2020-02-29 07:14:45 -0500 | edited question | Loading controllers from yaml in namespace Loading controllers from yaml in namespace Hi, (*Using ROS Melodic in Ubuntu) I am loading a yaml with 4 controllers + |
2020-02-29 07:14:04 -0500 | asked a question | Loading controllers from yaml in namespace Loading controllers from yaml in namespace Hi, (*Using ROS Melodic in Ubuntu) I am loading a yaml with 4 controllers + |
2020-02-29 07:00:20 -0500 | received badge | ● Scholar (source) |
2019-03-21 19:54:12 -0500 | received badge | ● Student (source) |
2017-04-28 07:08:37 -0500 | received badge | ● Notable Question (source) |
2017-01-02 06:56:30 -0500 | received badge | ● Famous Question (source) |
2016-12-25 16:55:51 -0500 | received badge | ● Self-Learner (source) |
2016-12-25 16:55:51 -0500 | received badge | ● Teacher (source) |
2016-05-08 15:24:39 -0500 | marked best answer | Turtlebot simulation crashes when launched I have installed the software like it is said in the page. my system info is:
However when i try to run it: roslaunch turtlebot_gazebo turtlebot_empty_world.launch gazebo crashes when he should spawn the bot. The log message i get when this happens is: Dbg Plugin model name: mobile_base [spawn_turtlebot_model-4] process has finished cleanly log file: /home/samper/.ros/log/e4873b52-135d-11e4-bbd0-109add68f52e/spawn_turtlebot_model-4.log Segmentation fault (core dumped) [gazebo_gui-3] process has died [pid 25180, exit code 139, cmd /opt/ros/hydro/lib/gazebo_ros/gzclient __name:=gazebo_gui __log:=/home/samper/.ros/log/e4873b52-135d-11e4-bbd0-109add68f52e/gazebo_gui-3.log]. log file: /home/samper/.ros/log/e4873b52-135d-11e4-bbd0-109add68f52e/gazebo_gui-3.log I don't know why it is happening, other urdf models like shadow hand and arm are working pretty nice. ------------- EDIT ------------- when i check the log files i get this information: [rospy.client][INFO] 2014-07-24 20:11:12,989: init_node, name[/spawn_turtlebot_model], pid[25187] [xmlrpc][INFO] 2014-07-24 20:11:12,989: XML-RPC server binding to 0.0.0.0:0 [xmlrpc][INFO] 2014-07-24 20:11:12,990: Started XML-RPC server [http ://samper-MacBookPro:46217/] [rospy.init][INFO] 2014-07-24 20:11:12,990: ROS Slave URI: [http ://samper-MacBookPro:46217/] [rospy.impl.masterslave][INFO] 2014-07-24 20:11:12,990: _ready: http ://samper-MacBookPro:46217/ [rospy.registration][INFO] 2014-07-24 20:11:12,991: Registering with master node http ://localhost:11311 [xmlrpc][INFO] 2014-07-24 20:11:12,991: xml rpc node: starting XML-RPC server [rospy.init][INFO] 2014-07-24 20:11:13,090: registered with master [rospy.rosout][INFO] 2014-07-24 20:11:13,090: initializing /rosout core topic [rospy.rosout][INFO] 2014-07-24 20:11:13,093: connected to core topic /rosout [rospy.simtime][INFO] 2014-07-24 20:11:13,094: initializing /clock core topic [rospy.simtime][INFO] 2014-07-24 20:11:13,096: connected to core topic /clock [rosout][INFO] 2014-07-24 20:11:13,098: Loading model xml from ros parameter [rosout][INFO] 2014-07-24 20:11:13,103: Waiting for service /gazebo/spawn_urdf_model [rospy.internal][INFO] 2014-07-24 20:11:13,321: topic[/clock] adding connection to [http: //samper-MacBookPro:44259/], count 0 [rospy.internal][INFO] 2014-07-24 20:11:13,363: topic[/rosout] adding connection to [/rosout], count 0 [rosout][INFO] 2014-07-24 20:11:13,406: Calling service /gazebo/spawn_urdf_model [rosout][INFO] 2014-07-24 20:11:14,467: Spawn status: SpawnModel: Successfully spawned model [rospy.core][INFO] 2014-07-24 20:11:14,470: signal_shutdown [atexit] [rospy.internal][INFO] 2014-07-24 20:11:14,477: topic[/rosout] removing connection to /rosout [rospy.internal][INFO] 2014-07-24 20:11:14,477: topic[/clock] removing connection to http: //samper-MacBookPro:44259/ [rospy.impl.masterslave][INFO] 2014-07-24 20:11:14,477: atexit |
2016-04-21 05:20:05 -0500 | commented answer | Adding a camera to my urdf Thank you very much |
2016-04-21 04:33:46 -0500 | commented answer | Adding a camera to my urdf I tried but it says that i need more than 10 points |
2015-11-05 08:42:04 -0500 | received badge | ● Famous Question (source) |
2015-10-07 08:04:58 -0500 | received badge | ● Popular Question (source) |
2015-09-18 18:35:22 -0500 | received badge | ● Popular Question (source) |
2015-09-17 08:57:36 -0500 | asked a question | plug and unplug tool Hi, I am looking for a way to plug and unplug a tool to my robot. I have thought about dynamically modifying the joint or obtain the transformation from the world and set the gazebo model position. However, I am not able to get it working. I would really appreciate if someone could give me any clue. |
2015-09-09 04:27:40 -0500 | received badge | ● Notable Question (source) |
2015-09-02 08:16:48 -0500 | answered a question | -J param is not working for robots with more than 6 DOF I have solved it! The problem was that the collision mesh of the mobile base that I was using was too heavy. Just had to reduce the number of points with meshlab to 8000 (more or less). |
2015-09-02 05:13:43 -0500 | asked a question | -J param is not working for robots with more than 6 DOF Hello, I have a robot that can be described as a robotic arm of 6 DOF attached to a mobile base (train) with 2 DOF. When I try to spawn the robot and set the initial value of the joints doing: I have noticed that the train is only spawned at the position 10 of his prismatic joint if the robotic arm has 4 DOF ( 6 DOF of the whole model: 2 from the base + 4 from the arm). I would like to know if there is a way to split this xacro in 2 individual models, invoking them as 2 different robots, and attach one to another ? Thank you in advance. JLuis Samper |
2015-08-31 05:59:38 -0500 | received badge | ● Notable Question (source) |
2015-08-28 11:35:57 -0500 | received badge | ● Popular Question (source) |
2015-08-28 11:04:49 -0500 | edited question | Initial joint angles Hi, Is there anyway to set the initial joint angles of the robot ? After reading a lot of pages and some packages of several robots, I have seen that it can be done by adding some args to the spawning node. However, I haven't been able to make it work for me. Right now, what I am doing is: The robot is a lwa4p mounted over a mobile platform. For doing that, I am using xacros, being the robot schunk_lwa4p_and_base the union of all the xacros. I would really appreciate if you can help me. Thank you in advance, JLuis Samper |
2015-08-28 11:03:27 -0500 | answered a question | Initial joint angles up . |
2015-08-26 04:28:22 -0500 | received badge | ● Popular Question (source) |
2015-08-26 03:49:57 -0500 | answered a question | Adding a camera to my urdf In case that someone has this problem, i just solved it changing the inertial values. Gazebo has a problem when has to work with small values in the inertial block. Additionally I just omitted the parent tag, it is taken from the joint. If you need to orientate the position of the optical focus you can do it by the pose property tag of the gazebo plugin |
2015-08-25 10:02:34 -0500 | asked a question | Adding a camera to my urdf Hello, I am trying to add a camera to the end of an arm using xacros. The camera link URDF is: When I run the launch file it reports an error saying that the parent param is missing: I would really appreciate if someone could give me any clue. Thank you in advance. JLuis Samper PS: it only works if i delete the <camera> tag and its content |
2015-08-25 02:18:00 -0500 | received badge | ● Famous Question (source) |
2015-08-24 13:05:57 -0500 | commented question | Initial joint angles Setting defaults is sufficient |