Visualize 2d objects in 2d image in rviz

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Hello,

I would like to visualize some 2d objects using lines or bounding boxes in a 2d image in RVIZ. So far I was not able to find a way. I am suspecting that this might not be supported by RVIZ. But since I only started using ROS it is also likely that I was just looking at the wrong place.

Here is what I found out so far:

• I can visualize things in 3D using markers.
• I can visualize an image using the display type Image.
• I can also visualize an image using the display type camera, and I think if there is correct calibration information, the 3d markers get projected in that image.

But is there a way to directly draw something like the markers into a 2d image?