[Paraview] Using Paraview with undefined length of data

[pat marion]

Hi Bastien,

The live-data code is currently hosted on github.  The repository url is
git://github.com/patmarion/ParaView.git and the branch name is live-data.  I
think the live-data branch might be more than you need.  It is designed to
run in a client-server configuration with a parallel server (though the
parallel part is not required.)  When the live-data branch is eventually
merged with paraview master, I hope to update it so that does not require
client-server, but that work has not been done yet.  If you're willing to
run in client-server mode then the live-data branch will work for you.  The
first step it to try linking your project with the coprocessor library
(libvtkCoProcessor.so) and then try writing an adapter that converts your
data into a vtk data object.  Does your project use CMake?  If not, you will
have to write link and include lines yourself for your Makefile.

Pat

On Mon, May 2, 2011 at 1:20 PM, Bastien Purnelle <bastien911 at gmail.com>wrote:

> Thanks Pat,
>
> I have searched for information about the live-data feature, but I
> found only two interesting links :
> http://www.vtk.org/Wiki/ParaView:Live_Data_Introduction and
> http://www.vtk.org/Wiki/Animating_Live_Data
> In my case, the generating data program is a car embedded platform
> programming with C++/Qt. It contains a main program that manage many
> processes. Each process can be launched to do a particular feature and
> can communicate together with shared memories. For example, there is a
> process that reads vehicle speed from car network (CAN bus) and saves
> data into a shared memory. Another process uses this data to do some
> treatments with other data. The car is equipped with others sensors as
> radar, or lidar, or camera... and an process save data into the shared
> memory.
> The goal of my project is to create a process that read some data in
> many defines shared memories and to send this data to Paraview so that
> it displays for example a graph of speed changes and a representation
> of the car environment thanks to the radar and other data that we can
> choose before launching the process.
> So the process must be available to launch Paraview, open a predefined
> configuration and send in real time all data read into shared
> memories.
> For now, I have only played with Paraview thanks to some tutorials,
> but each time, data comes from a fixed file.
> First I would like develop a simple process that send the vehicle
> speed (a float number) and displays the value in a graph view into
> Paraview.
> Where can I found Paraview sources that use live-data ? Is there an
> example of program that interface with paraview library and send
> live-data ?
> Thank you in advance for your help.
>
> Bastien
>
> 2011/4/27 pat marion <pat.marion at kitware.com>:
> > Hi Bastien,
> >
> > There is a feature called live-data that is able to display time variant
> > data as it is produced by a simulation code.  The feature is currently
> > available in a branch of paraview, not the main release.  To use this
> > feature, the simulation code, or whatever external program is generating
> > data, must interface with a paraview library through fortran, c, c++ or
> > python.  The interface process is meant to be easy for a programming who
> is
> > familiar with VTK, but will require some effort if you are new to VTK and
> > cmake.  If you tell me a little more about your program that is
> collecting
> > sensor data (don't be afraid to go into detail...), maybe I can come up
> with
> > some ideas for how you could interface it with paraview.
> >
> > Pat
> >
> >
> >
> > On Wed, Apr 27, 2011 at 5:31 PM, Bastien Purnelle <bastien911 at gmail.com>
> > wrote:
> >>
> >> Hello,
> >>
> >> I'm developing an interface for displaying data from car embedded
> >> sensors (lidar, odometers,  ...) in real time. However, Paraview work
> >> with finite data files and I'am searching a mean to use Paraview with
> >> time changing data. Is it a solution with Paraview (create a plugin, a
> >> python script) ?
> >> Thank you in advance...
> >>
> >> Best regards.
> >>
> >> --
> >> Bastien
> >> _______________________________________________
> >> Powered by www.kitware.com
> >>
> >> Visit other Kitware open-source projects at
> >> http://www.kitware.com/opensource/opensource.html
> >>
> >> Please keep messages on-topic and check the ParaView Wiki at:
> >> http://paraview.org/Wiki/ParaView
> >>
> >> Follow this link to subscribe/unsubscribe:
> >> http://www.paraview.org/mailman/listinfo/paraview
> >
> >
> _______________________________________________
> Powered by www.kitware.com
>
> Visit other Kitware open-source projects at
> http://www.kitware.com/opensource/opensource.html
>
> Please keep messages on-topic and check the ParaView Wiki at:
> http://paraview.org/Wiki/ParaView
>
> Follow this link to subscribe/unsubscribe:
> http://www.paraview.org/mailman/listinfo/paraview
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://www.paraview.org/pipermail/paraview/attachments/20110509/6db5937c/attachment.htm>