Usage
To access these plugins, launch the rqt_bag GUI tool (see rqt_bag for details), right-click on the timeline of the desired topic select a view type from the context menu.
Plugins
The following plugins are currently provided for rqt_bag:
Image
The image view displays raw image data for sensor_msgs/Image and sensor_msgs/CompressedImage messages:
Re-sizing the window scales the image.
Plot
The plot view displays a time series plot of numeric fields in a ROS message. The view inherits from the rqt_plot code base, so all plotting options are the same as with rqt_plot.
To plot a message field, select the field from the list in the right window (Note: currently only fields from the same message topic can be plotted in the same view window).
Clicking on the Configure Plot button in the toolbar opens a new window for selecting the plotting backend and marker preferences.
By default, the plotted data is sub-sampled in time to minimize the cpu load. To change the sampling resolution, deselect 'auto' in the Resolution section and enter a sampling time in seconds. The plotted data will automatically refresh with the new sampling time.