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2019-05-20 01:32:33 -0500 | marked best answer | roscpp message_filters Synchronizer.registerCallback problem Hi, For the example of message filter in this example , I tried to register callback from a class member function as in the following code: I could call
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2018-06-05 15:19:25 -0500 | commented question | Why am I seeing multiple PIDs while running nodelet Thanks. The document for Nodelet is actually pretty thin on ROS wiki and can be augmented with more concrete coding exam |
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2018-06-05 01:09:05 -0500 | asked a question | Why am I seeing multiple PIDs while running nodelet Why am I seeing multiple PIDs while running nodelet I'm new to nodelet and experimenting an example shown in the GitHub |
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2018-03-10 00:54:55 -0500 | commented answer | roscpp message_filters Synchronizer.registerCallback problem Thank you! |
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2018-03-09 16:36:10 -0500 | asked a question | roscpp message_filters Synchronizer.registerCallback problem roscpp message_filters Synchronizer.registerCallback problem Hi, For the example of message filter in this example , I |
2018-03-09 15:30:15 -0500 | marked best answer | roscpp message_filters ApproximateTime API questions Hi, I have two questions regarding using message_filters ApproximateTimePolicy. From the example, it is not quite clear how I can specify the delay (in seconds) between messages that they can be synchronized. There are The second question is that I need to instantiate the Synchronizer with Thanks for any help. |
2018-03-09 15:12:48 -0500 | commented answer | roscpp message_filters ApproximateTime API questions Thanks so much! Somehow the program failed to link with undefined reference to `image_transport::ImageTransport::ImageTr |
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2018-03-07 22:31:26 -0500 | asked a question | roscpp message_filters ApproximateTime API questions roscpp message_filters ApproximateTime API questions Hi, I have two questions regarding using message_filters Approxima |
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2017-12-01 22:46:25 -0500 | commented answer | TF quaternion rotation problem Thanks! That really helps. |
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2017-12-01 22:44:32 -0500 | marked best answer | TF quaternion rotation problem My goal is to rotate a quaternion by a yaw angle. q1 is the quaternion that I want to rotate I want to rotate q1 by 1/4 pi yaw so I create another quaternion q2 for the purpose I then rotate q1 and I expect the result to be (pi/2, pi/4, pi/2) roll-pitch-yaw But when I convert the result to Euler below is the value. Looks like it rotates pitch by -pi/4 instead of the yaw by pi/4. Am I doing something wrong? Thanks for any help. |
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2017-12-01 16:45:36 -0500 | commented answer | TF quaternion rotation problem Thanks. That works. |
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2017-11-30 18:05:13 -0500 | asked a question | TF quaternion rotation problem TF quaternion rotation problem My goal is to rotate a quaternion by a yaw angle. q1 is the quaternion that I want to rot |
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2017-05-01 19:09:01 -0500 | asked a question | how does multiple publishers and multiple subscribers work? how does multiple publishers and multiple subscribers work? Hi, How does the sockets among M publishers and N subscribe |
2017-05-01 19:09:00 -0500 | asked a question | ROS XMLRPC, TCPROS, UDPROS specification ROS XMLRPC, TCPROS, UDPROS specification Hi, I'm interested in implementing a pure Erlang client for ROS. Just wondering |
2017-05-01 19:09:00 -0500 | asked a question | ROS XMLRPC, TCPPROS, and UDPROS spec ROS XMLRPC, TCPPROS, and UDPROS spec Hi, I'm interested in implementing a pure Erlang client for ROS. Just wondering is |