[ros-users] [rviz] Displaying informations

[Josh Faust]

Looks like there was a bug in the example.  ros::Time() should have been
ros::Time::now().  Depending on where you want to display the marker, and
what setup you're using, the "/my_frame" frame id may need to be changed as
well.

Josh

On Fri, May 14, 2010 at 7:30 AM, Nicolas <nicolas at shadowrobot.com> wrote:

> Hi Josh and thank you for your answers.
>
> To display TEXT_VIEW_FACING markers, I thought that it would be a good
> idea to start with the "basic shapes" tutorial on the wiki, and then to
> adapt the C++ file to get "dynamic" text instead of shapes shifting
> every second. Unfortunately for me I was right :(
>
> I followed step by step the tutorial, creating my package, implementing
> basic_shapes.cpp, building and running the code. Everything went
> perfectly well, but my rviz does not display any shape. I checked with
> rxgraph that everything was connected and I echoed the
> visualization_marker node to check the informations that rviz receives.
> Here is an exemple of the echo result:
>
> header:
>  seq: 176
>  stamp: 0
>  frame_id: /my_frame
> ns: basic_shapes
> id: 0
> type: 3
> action: 0
> pose:
>  position:
>    x: 0.0
>    y: 0.0
>    z: 0.0
>  orientation:
>    x: 0.0
>    y: 0.0
>    z: 0.0
>    w: 1.0
> scale:
>  x: 1.0
>  y: 1.0
>  z: 1.0
> color:
>  r: 0.5
>  g: 0.5
>  b: 0.5
>  a: 0.5
> lifetime: 0
> points: []
>
>
> Is everything OK ? I cannot figure what the error is, and my rviz still
> doesn't display any shape.
>
> TIA,
>
> Nicolas
>
> Le jeudi 13 mai 2010 à 10:35 -0700, Josh Faust a écrit :
> > Hi Nicolas,
> >
> > rviz 1.1 includes a TEXT_VIEW_FACING marker, as well as an option to
> > keep a marker relative to a frame (frame_locked).
> >
> > Do you mean dynamically change the color of one of the robot model
> > links?  No, there is currently no way of doing that.  Another option
> > is that 1.1 also contains a MESH_RESOURCE marker, so you could create
> > a mesh of the same type as that link, make it slightly larger and
> > possibly transparent, and set its color.
> >
> > Josh
> >
> > On Thu, May 13, 2010 at 8:25 AM, Nicolas <nicolas at shadowrobot.com>
> > wrote:
> >         Hello ROS community,
> >
> >         I am currently trying to display through rviz some
> >         informations about my
> >         robot model (a too high temperature for instance), and I don't
> >         really
> >         find a good way to do it. Is there a possibility to display
> >         informations
> >         as a floating text next to the <link> the informations are
> >         about ? Or a
> >         way to dynamically change the color of a texture ? And if it
> >         is not
> >         possible yet, is it planned to be possible in a future
> >         release ?
> >
> >         Thanks in advance,
> >
> >         Nicolas
> >
> >         _______________________________________________
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> >         ros-users at code.ros.org
> >         https://code.ros.org/mailman/listinfo/ros-users
> >
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>
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