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2016-08-02 11:26:07 -0500 | commented answer | Tutorial 1.16 "ImportError: No module named beginner_tutorials.srv" with Catkin system build Hi I know its old but I would also add: It feels like it only works for me if I uncomment the line in the catkin_package section and add message runtime to it. |
2016-08-02 04:45:55 -0500 | commented answer | publish numpy matrix to topic I think the tutorial only covers arrays, as they are using the "Floats" msg from rospy_tutorials. (Floats.msg: float32[] data) |
2016-08-02 04:43:41 -0500 | commented answer | publish numpy matrix to topic Thank you. I will do it like this for now. If I find a different approach I will add an answer here. |
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2016-08-01 09:03:31 -0500 | asked a question | publish numpy matrix to topic Hello together, I would like to publish a 10x10x10 numpy-Matrix in one publishing step.
Therefore I would like to know how I can declare the matrix.msg:
Is that even possible? What do I have to add to the Thanks in advance! |
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2016-07-27 04:50:53 -0500 | answered a question | tf.LookupException: "base_link" passed to lookupTransform argument target_frame does not exist. Hello together, I fixed it and now it feels way to easy. But I will leave the solution here anyway. Maybe it helps the next person starting with tf's. The running code: first node: second node: Note the |
2016-07-27 04:45:27 -0500 | commented answer | tf.LookupException: "base_link" passed to lookupTransform argument target_frame does not exist. Fixed. A wait for transform in the second code and a rospy.rate(150) in the first one made it working. ;) |
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2016-07-27 04:25:45 -0500 | commented answer | tf.LookupException: "base_link" passed to lookupTransform argument target_frame does not exist. Sorry about that. I got messed up with the names during testing. But even with the same names the error remains. |
2016-07-26 11:45:17 -0500 | asked a question | tf.LookupException: "base_link" passed to lookupTransform argument target_frame does not exist. Hello together, I am new with ros tf's and already worked myself threw the tf tutorials. (I am using ros indigo) As my first test with tf's after the tutorial I wrote 2 small nodes. The first one is sending a tf: The second is listening to the tf: When starting the second node this error occurs:
I already found in a different question that a As you see the code is easy but I am totally stuck. I think I misunderstood something but can't figure out what. Any solutions? Thanks in advance! |