mystery of the missing transform in rviz

asked 2015-03-05 15:24:03 -0500

rnunziata
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Why is there not a line from camera_frame to object_position

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answered 2015-03-07 16:12:13 -0500

rnunziata
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I believe this is related to a configuration file that does not match my target marker specs.

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answered 2015-03-06 03:38:08 -0500

gvdhoorn
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Is the Show Arrows checkbox checked for the TF display in RViz?

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yes....i turned off the other frames to show only the camera_frame and object_position is shown. Note the camera_frame would not show if the show arrows was off.

rnunziata ( 2015-03-06 07:45:04 -0500 )edit

I'm a little confused: I think only Show Axes off would not show the camera frame (only the name)? Turning Show Arrows off should just remove the 'lines' between the frames.

gvdhoorn ( 2015-03-06 10:51:33 -0500 )edit

yes, you are right. However I do have the show arrows set to on in the example.

rnunziata ( 2015-03-06 11:04:35 -0500 )edit

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answered 2015-03-07 12:44:27 -0500

kmhallen
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The object_position transform has a much older timestamp than the rest of the transforms.
odom: Most Recent: 1675.964
base_footprint: Most Recent: 1675.911
object_position: Most Recent: 1207.226

I think the default timeout for frames in rviz is 10 seconds, and in this case the object_position transform is more than 400 seconds out of date.

The tracker_mbt node clock seems to be different than the rest of the system.

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I see what you are saying but I do not see why it should, in fact I think my cofig file is wrong. Which is something else as I think it is not being processed. which is that it should not be process a object position at all?

rnunziata ( 2015-03-07 13:56:36 -0500 )edit

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