[ros-users] Has anyone written a trajectory plotting tool?

[Dorian Scholz]

Hi Adam,

the rqt GUI has a 2D plotter rqt_plot that can plot numerical data from
messages.
It is very similar to rxplot, but there is no restriction (as far as I
know) on how many variables can be plotted. It's just dependent on you
CPU power...
rqt_plot has three different drawing backends selectable from it's
configuration menu:
- qwt plot (fast, but not using message timestamps and needs python-qwt
bindings)
- pyqtgraph (fast and needs pyqtgraph to be installed which is not in
the repos)
- matplotlib (slow but always available)

Hope that helps.

Cheers,
Dorian


On 21/03/13 16:53, Adam Leeper wrote:
> Hi all-
>
> I'd like a tool that plots a series of joint trajectories. In my work,
> I continuously re-plan motions, meaning I need each trajectory to
> spline smoothly at a particular time with the previously commanded
> trajectory. Having a graphical tool to verify that this is happening
> correctly would be very useful.
>
> Has anyone already written such a tool?
> Otherwise, I guess I'll start getting familiar with rqt and matplotlib...
>
> By the way, rxplot is not sufficient because it can only interpret one
> number per message.
>
> Thanks!
> --Adam
>
>
> Adam Leeper
> PhD Candidate, Stanford BioRobotics Lab
> aleeper at stanford.edu <mailto:aleeper at stanford.edu>
> cell: 650.ROBOT.44
>
>
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-- 
Dipl.-Inform. Dorian Scholz         E-Mail:scholz(at)sim.tu-darmstadt.de
Simulation, Systems Optimization    Phone:  +49 (0) 6151 16-4811
and Robotics Group                  Fax:    +49 (0) 6151 16-6648
Technische Universität Darmstadt    http://www.sim.tu-darmstadt.de
Hochschulstr. 10                    D-64289 Darmstadt, Germany

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