lyh458's profile - activity

Thank you for the answer! I made a simple test (single nodes without multi-thread), here is the code: import rospy fro

Thank you for the answer! I made a simple test (single nodes without multi-thread), here is the code: ``` import rosp

Thank you for the answer! I made a simple test (single nodes without multi-thread), here is the code: ``` import rospy

AttributeError: 'NoneType' object has no attribute 'close' issue details Exception in thread /iiwa/joint_states: Tra

AttributeError: 'NoneType' object has no attribute 'close' The above error raised when I subscribe a topic in a sub-thre

Is that some packages such as moveit, are built from outdated source codes? In my case, just update the source codes an

How to get each joint angle if all joint positions (x,y,z) are known? If all joint positions or coordinates of each join

Hi, any update?

Thanks, @gvdhoorn. I have solved the problem. This is actually a workspace overlaying problem. Because I have several wo

Can't source .bashrc when setup.bash is in a symbolic folder Hi, I have a dual system (Ubuntu 18.04 and Windows 10) in

catkin_ws is a workspace instead of a package

I solved the problem by ran conda install -c conda-forge python-gnupg just now. Using ros and anaconda simultaneously ma

How did you solve the problem? Thanks.

Yeah, thanks! I mistook the "position" for "orientation".

Sorry for my poor expression. I think a pose of a robot should be determined by both position and quaternion, because th

why given only the quaternion, a pose can be determined MoveIt tutorials, move_group_interface_tutorial.cpp line 121, 2