[X3D-Public] The Network Sensor is not enough

[Sven-Erik Tiberg]

Hi Christoph

FYI: got a student working with his thesis about driversimulator and a former student that has a lot of interest in development for our driversimulators and recently took a position to develope flight-controllers and simulators as senior developer.

The mission are to get a running driving simulator för traing of driving on snow and ice roads and to evaluate drivers capability to handle traficsituation after having f.ex. a stroke or any medical disfunction or high age. http://wbsp.arb.ltu.se/Motionbase

We will initially use www.CarSim.com<http://www.CarSim.com> with custom made simulink modules for UDP-stream of comma separated floating point states to control a motionsimulator.
The UDP cs-state stream will be changed to XMPP and disXML defined states.
This task are on my desk and I'm starting with setting up the XMPP client and server enviroment using strophejs ( http://code.stanziq.com/strophe/ )  and ejabberd ( http://www.ejabberd.im/ ).

StropeJS with XMPP/disXML can be implemented in most X3DBrowsers. Porting to PyXMPP opens up for more clients.
The "challange" are to find a fast XML resolver to code / decode states from the OpenDIS XML scema.

After getting an understanding of strophejs-disXML we will move on to libstrophe and compile it into matlab mex file to be used in simulink and to extend our custom made controlsystem for the motionbase 6 dof system.
Getting there we have disXML/XMPP running i our driversimulator and can extend it with X3Dbrowsers and PDA's and ...
PS. it's a great source of information at NPS that supports this development.

Keep you posted on this.

MVG
Sven-Erik Tiberg


________________________________
From: x3d-public-bounces at web3d.org [mailto:x3d-public-bounces at web3d.org] On Behalf Of Christoph Valentin
Sent: den 2 februari 2011 08:07
Cc: x3d-public at web3d.org
Subject: Re: [X3D-Public] The Network Sensor is not enough

Thank you for the voluntary joining up.

So, the show will go on.

-------- Original-Nachricht --------
Datum: Sat, 08 Jan 2011 04:00:22 +0100
Von: "Christoph Valentin" <christoph.valentin at gmx.at>
An: x3d-public at web3d.org
Betreff: [X3D-Public] The Network Sensor is not enough


Dear members of the X3D-public

When comparing Network sensor and DIS, you will find, that DIS is quite specialized, but it's easy for the developer of the scene to use DIS, where the Network Sensor is very general, but the scene author has to define and implement a lot of specifics, before he can use the Network Sensor.

This was my impression at least.

Such topics like
  - reusability of models and modules (given a module is a part of the landscape)
     in different scenes from different authors
  - implementing central services, that are (currently) not available on the collaboration server
  - interactivity and animation

are not very well defined, so each company, each framework, each author uses very different approaches.

It's my impression, at least.

If you agree to this, the following text might be interesting for you, otherwise you can stop reading here.

Since IMHO the Network Sensor has a lot of advantages, too, I think it would be worth to play around with the possibilities (goal is an evolution of the standard) and started an open source project, which is mainly a playground.

A short introduction at: http://smuos.wordpress.com/2011/01/06/smuos-and-the-srr-framework/
The project at: http://sourceforge.net/projects/simulrr

This playground could be used by others interested, too.

I know the sourceforge project has still a lot of weaknesses (poor chat, poor GUI, written entirely in ECMAScript, uses currently only one multiuser server......), but I decided to post NOW at X3D-Public, because NOW we have a lot of discussions regarding "doing things within the scene" or "doing things outside the scene" (because of the declarative 3D discussion) and it fits here.

It's a private hobby project and I am not backed by a company, but it *could* become a topic for my employer.

Have fun
Christoph



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