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@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
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