# visualization_msgs

This package provides messages for visualizing 3D information in ROS GUI programs, particularly RViz.

These messages were ported from ROS 1 and for now the [visualization_msgs wiki](http://wiki.ros.org/visualization_msgs) is still a good place for information about these messages and how they are used.

For more information about ROS 2 interfaces, see [docs.ros.org](https://docs.ros.org/en/rolling/Concepts/About-ROS-Interfaces.html).

## Messages (.msg)
* [ImageMarker](msg/ImageMarker.msg): A marker to overlay on displayed images.
* [InteractiveMarker](msg/InteractiveMarker.msg): A user interaction marker for manipulating objects in 3-dimensional space in GUI programs, like RViz.
* [InteractiveMarkerControl](msg/InteractiveMarkerControl.msg): Represents a control that is to be displayed together with an interactive marker.
* [InteractiveMarkerFeedback](msg/InteractiveMarkerFeedback.msg): Feedback message sent back from the GUI, e.g. when the status of an interactive marker was modified by the user.
* [InteractiveMarkerInit](msg/InteractiveMarkerInit.msg): Used for sending initial interactive marker descriptions.
* [InteractiveMarkerPose](msg/InteractiveMarkerPose.msg): The pose of the interactive marker.
* [InteractiveMarkerUpdate](msg/InteractiveMarkerUpdate.msg): The top-level message for sending data from the interactive marker server to the client (i.e. rviz).
* [Marker](msg/Marker.msg): A non-interactive marker for displaying annotations in 3-dimensional space.
* [MarkerArray](msg/MarkerArray.msg): An array of markers.
* [MenuEntry](msg/MenuEntry.msg): Used to describe the menu/submenu/subsubmenu/etc tree.

## Services (.srv)
* [GetInteractiveMarkers.srv](srv/GetInteractiveMarkers.srv): Get the currently available interactive markers.

## Quality Declaration
This package claims to be in the **Quality Level 2** category, see the [Quality Declaration](QUALITY_DECLARATION.md) for more details.