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2022-07-10 10:19:42 -0500 received badge  Necromancer (source)
2022-07-07 05:42:49 -0500 commented answer Dynamically get topic type for rosbag

It would be easier to help you if you included a minimum failing example + the full output ... otherwise we're just gues

2022-07-07 05:41:37 -0500 edited answer Dynamically get topic type for rosbag

I've done something similar via: import importlib def get_type(msg_type_str): pkg, tt = msg_type_str.split('/')

2022-07-06 22:32:44 -0500 edited answer How to get list of all tf frames programatically?

Building off the other answers, here's a snippet of runnable code that I wound up with: import rospy import tf2_ros imp

2022-07-06 22:32:21 -0500 answered a question How to get list of all tf frames programatically?

Building off the other answers, here's a snipped of runnable code that I wound up with: import rospy import tf2_ros imp

2022-07-06 22:00:22 -0500 edited answer Dynamically get topic type for rosbag

I've done something similar via: import importlib def get_type(msg_type_str): pkg, tt = msg_type_str.split('/')

2022-07-06 22:00:02 -0500 edited answer Dynamically get topic type for rosbag

I've done something similar via: ``` import importlib def get_type(msg_type_str): pkg, tt = msg_type_str.split('/')

2022-07-06 21:59:51 -0500 answered a question Dynamically get topic type for rosbag

I've done something similar via: ~~~ import importlib def get_type(msg_type_str): pkg, tt = msg_type_str.split('/')

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2022-07-06 21:52:57 -0500 commented question Problems with "Introduction to tf2" Tutorial

@chainley -- Can you copy this comment into an answer, then accept the answer? That will prevent your question from show

2022-07-06 21:51:06 -0500 commented question Confusion about catkin build and devel folder creation

This doesn't have enough information to be answerable, though you are right that catkin build should create the devel di

2022-07-06 21:49:41 -0500 commented question Confusion about catkin build and devel folder creation

This doesn't have enough information to be answerable, though you are right that catkin build should create the devel di

2022-07-06 21:49:30 -0500 commented question Confusion about catkin build and devel folder creation

This doesn't have enough information to be answerable, though you are right that catkin build should create the devel di

2021-09-25 14:26:15 -0500 edited question roslib.message.get_message_class fails for package build with `catkin build` but not `catkin_make`

roslib.message.get_message_class fails for package build with `catkin build` but not `catkin_make` An external package t

2021-09-25 14:26:04 -0500 edited question roslib.message.get_message_class fails for package build with `catkin build` but not `catkin_make`

roslib.message.get_message_class fails for package build with `catkin build` but not `catkin_make` An external package t

2021-09-25 14:25:41 -0500 edited question roslib.message.get_message_class fails for package build with `catkin build` but not `catkin_make`

roslib.message.get_message_class fails for package build with `catkin build` but not `catkin_make` An external package t

2021-09-25 14:25:19 -0500 asked a question roslib.message.get_message_class fails for package build with `catkin build` but not `catkin_make`

roslib.message.get_message_class fails for package build with `catkin build` but not `catkin_make` An external package t

2020-11-18 23:55:22 -0500 commented question Point clouds from stereo camera not correct visualized in RVIZ after using ROS stereo calibration

First, you might want to also post one of the camera images so we can tell you if we'd expect the resulting point cloud

2020-11-18 23:46:34 -0500 edited answer How to create a rosbag file with messages with an header

header is not timestamp. header contains seq, timesamp, and frame_id. #!/usr/bin/env python3 import rosbag from marti_c

2020-11-18 23:43:21 -0500 commented answer How to publish custom topic from command line

Additionally, you should be able to use tab completion after typing rostopic pub /robo_explorer/io_status, and it will a

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2018-10-02 12:30:21 -0500 commented answer Change the dependencies of Mavros and build failed

I'm on kinetic, and this doesn't work for me. $ catkin clean -b > catkin: command not found

2018-10-02 12:30:07 -0500 commented answer Change the dependencies of Mavros and build failed

I'm on kinetic, and this doesn't work for me. ~~~ $ catkin clean -b catkin: command not found ~~~

2018-10-02 12:29:47 -0500 commented answer Change the dependencies of Mavros and build failed

I'm on kinetic, and this doesn't work for me. $ catkin clean -b catkin: command not found

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2018-02-05 22:50:19 -0500 edited question Examples of good ROS boundaries

Examples of good ROS boundaries I'm working on converting a system to ROS, and have been looking for best practices for

2018-02-05 22:43:01 -0500 asked a question Examples of good ROS boundaries

Examples of good ROS boundaries I'm working on converting a system to ROS, and have been looking for best practices for

2018-01-25 03:50:51 -0500 commented question Tool for analyzing ROS network traffic?

See https://answers.ros.org/question/61093/how-can-statistics-for-all-active-ros-topics-be-obtained/ for more recent ans

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2018-01-07 06:46:00 -0500 commented question 20-60 second delays in actionlib.SimpleActionClient.wait_for_server()

I've read through all open issues, and none seem to be the same thing. I've submitted this as ros/actionlib#93)

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2017-12-11 04:55:23 -0500 edited question 20-60 second delays in actionlib.SimpleActionClient.wait_for_server()

Long delays in actionlib.SimpleActionClient.wait_for_server() I am sporadically seeing actionlib’s wait_for_server() tak

2017-12-11 04:54:57 -0500 asked a question 20-60 second delays in actionlib.SimpleActionClient.wait_for_server()

Long delays in actionlib.SimpleActionClient.wait_for_server() I am sporadically seeing actionlib’s wait_for_server() tak

2017-12-01 10:02:24 -0500 marked best answer How to unit test smach state machines?

I'm struggling with how to automate tests to exercise a smach state machine. In particular:

1) Is it possible to start the state machine in a given state? I'm picturing some modification to sm.execute() that sets user data and calls the appropriate execute loop. Or maybe something that specifies the transitions required to get to the desired start state?

2) How can I check that it has transitioned as expected? Note - I'm using smach only, not ROS, but I figured that this was still probably the best place to ask. However, it means that I can't just eavesdrop on the messages that are used to update the smach viewer.

I'm using this state machine to coordinate human and autonomous control; I want to be able to test things like "from any state, joystick override quickly preempts", "from any state, loss of communications triggers preemption and transition to this state".

Has anybody done this before? Is there another way to approach this type of testing?

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2017-05-08 04:15:56 -0500 edited question How to type check message arguments for actionlib goals?

How to type check message arguments for actionlib goals? I'm working on a user interface that includes a way to send act