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2020-12-18 16:39:00 -0500 | marked best answer | RViz show /cloud in xx.bag with outside /tf Hi, I want to display the /cloud in a bag file with an outside /tf topic. The frame_id of the cloud message is "laser". /tf describes a rotation of "laser" around the y axis of "base_link". "base_link" is designed to be the fixed frame. In RViz, either /tf or /cloud can be displayed correctly alone. But when running tf node along with xx.bag and setting the fixed frame to be "base_link", only the tf movement is displayed. I've tried setting the fixed frame to be "laser". The cloud and tf can be displayed in that case, but it's different from what is designed. When the fixed frame is "base_link", there's an error in transform:
The param use_sim_time was set to be true. And the bag file was played in It seems like a problem of time, but when the fixed frame is "laser", tf and cloud can be displayed simultaneously. What's the problem here? Thanks for any help. |
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2019-07-25 09:23:39 -0500 | edited answer | RViz show /cloud in xx.bag with outside /tf It's a silly problem. The time stamp I used for every tf msg was rospy.Time(0). It should be rospy.get_rostime(). |
2019-07-25 09:23:16 -0500 | answered a question | RViz show /cloud in xx.bag with outside /tf It's a silly problem. The time stamp of every tf msg was rospy.Time(0). It should be rospy.get_rostime(). |
2019-07-23 19:54:05 -0500 | edited question | RViz show /cloud in xx.bag with outside /tf RViz show /cloud in xx.bag with outside /tf Hi, I want to display the /cloud in a bag file with an outside /tf topic. Th |
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2019-07-20 23:16:30 -0500 | asked a question | RViz show /cloud in xx.bag with outside /tf RViz show /cloud in xx.bag with outside /tf Hi, I want to display the /cloud in a bag file with an outside /tf topic. Th |
2019-07-15 06:31:31 -0500 | commented question | serial available() returns false Thanks. A motor is attached to the USB port. It needs a command to run. The command is a long string and has been tested |
2019-07-15 04:14:58 -0500 | edited question | serial available() returns false serial available() returns false Hi, I'm trying using serial to send information to a serial port. The following is my |
2019-07-15 03:36:16 -0500 | commented question | serial available() returns false Thanks. I've corrected the title. |
2019-07-15 03:21:51 -0500 | edited question | serial available() returns false serial available() returns false Hi, I'm trying using serial to send information to a serial port. The following is my |
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2019-07-15 03:21:34 -0500 | edited question | serial available() returns false rosserial available() returns false Hi, I'm trying using rosserial to send information to a serial port. The following |
2019-07-15 02:41:58 -0500 | asked a question | serial available() returns false rosserial available() returns false Hi, I'm trying using rosserial to send information to a serial port. The following |