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2019-06-27 15:39:06 -0500	received badge	● Famous Question (source)
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2018-09-20 10:02:20 -0500	received badge	● Notable Question (source)
2018-09-18 19:03:23 -0500	commented answer	how to rotate before translate that's exactly what i did finally, thank you very much!
2018-09-18 19:02:27 -0500	marked best answer	how to rotate before translate hi, i am new to ros, tf new i need to build a transformation, the parameter for the rotation and translation has already been known, but i wonder how to rotate the frame before translate it, will sendTransform() consider the order? Thank you very much!
2018-09-18 18:54:37 -0500	received badge	● Popular Question (source)
2018-09-18 10:21:55 -0500	asked a question	how to rotate before translate how to rotate before translate hi, i am new to ros, tf new i need to build a transformation, the parameter for the rotat
2018-09-18 09:52:55 -0500	asked a question	do i need to build a base frame do i need to build a base frame in tutorial, there's a base frame called 'world', I wonder whether this base frame is de
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2018-09-13 08:05:39 -0500	marked best answer	how to use callback() with python can anyone explain how to use callback in writing a subscriber? the tutorial uses callback(data),but what it data? what content dose it have? thank you very much!
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2018-09-12 15:56:40 -0500	commented answer	how to use callback() with python understand， thank you!
2018-09-12 09:31:12 -0500	received badge	● Popular Question (source)
2018-09-12 07:55:38 -0500	commented answer	how to use callback() with python so if the message is int16, than the data will be exactly the int16? just the same as the message?
2018-09-11 23:09:18 -0500	asked a question	how to use callback() with python how to use callback() with python can anyone explain how to use callback in writing a subscriber? the tutorial uses call