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Re: Open Inventor and VRML

To: "Rui Loureiro" <r.c.v.loureiro@xxxxxxxxxxxxx>
Subject: Re: Open Inventor and VRML
From: "Daniel Lichau" <Daniel.Lichau@xxxxxxxxxxxxxx>
Date: Fri, 13 Oct 2000 17:02:00 +0200
Cc: <info-inventor-dev@xxxxxxxxxxx>
References: <015901c0351c$f23ca130$e09a64c0@xxxxxxxxx>
Reply-to: "Daniel Lichau" <Daniel.Lichau@xxxxxxxxxxxxxx>
Sender: owner-info-inventor-dev@xxxxxxxxxxx
Dear Rui,

I suggest that you try to post also your question to
You might have more answers and contacts with other users in this forum
since this mailing list is more dedicated to the Open Inventor 2.1 internal
For reading, I suggest you to start with the Mentor book, then the  "Open
Inventor for VRML" chapter in the TGS  extension book. It explains how to
use Open Inventor 2.6 for VRML2
Collision detections example are located in src\examples\Features\Collision.
Moving objects will involve "transformations", that you have to understand
in the relevant Mentor chapter, and possibly "manipulators", for interactive
transformations. To get more useful information, you might need to a little
bit more specific in your questions to the forums.

Please also notice that you can get support from our hotline. Forgive me for
the advertisement :-).
Of course the most efficient way to learn how to use the product to solve
your problem would probably be a training or specific assistance.
We organize trainings regularly in our R&D centers, for instance in Bordeaux
(France), but we would also be pleased to set up a training in your research
center, which could be worth if there are other people interested in such
If you are interested you can contact directly Aude.Robertet@xxxxxxxxxxxxxx
(she is in charge of your country).


Daniel Lichau
Consultant engineer
E-mail: Daniel.Lichau@xxxxxxxxxxxxxx

TGS Europe
P.A. Kennedy I - BP 227
33 708 Mérignac Cedex - France
Ph:  +33 (0)5 56 13 37 77
Fax: +33 (0)5 56 13 02 10

----- Message d'origine -----
De : Rui Loureiro <r.c.v.loureiro@xxxxxxxxxxxxx>
À : <info-inventor-dev@xxxxxxxxxxx>
Envoyé : Friday, October 13, 2000 3:53 PM
Objet : Open Inventor and VRML

> Dear All,
> I have recently start using TGS Open Inventor for Windows NT but I have to
> confess that I am facing some problems. I am involved in a medical project
> aiming to deliver robotic therapy to patients that have suffered from
> stroke. It has been decided that we will use a combination of virtual and
> real tasks to deliver appiling activities to the user. This surely will
> in patient's motivation and improve the recovery time. The first prototype
> is intended to go to one hospital at the end of December for clinical
> evaluation.
> To start with, I have modelled a virtual room using 3D studio MAX and have
> converted this scene into VRML 97 format. Somehow I have managed to read
> VRML scene into Open Inventor, but my main problem now is on how to access
> the VRML scene in order to perform actions such as, move objects from one
> location to another, detect when a collison occured, etc. Despit the books
> (The Inventor Mentor, The Inventor Toolmaker, and TGS Extesions User's
> guide) I am still lost! I have been trying to find examples but couldn't.
> I wonder if you could help my in this matter, if you have any
> (tutorials, examples, etc) which relates to the problem discribed.
> will help! It is extremely difficult for me at the moment and without
> yet the abstraction behind computer graphics and the way Open Inventor
> really works adds to my difficulty to solve the problem.
> I will be very gratfull if you could help me in any way. I am looking
> further to hearing from you.
> Sincerely
> Rui Loureiro
> --------------------------------------------------------------------------
> Rui Loureiro
> Research Officer
> e-mail: R.C.V.Loureiro@xxxxxxxxxxxxx
> Tel:  OFFICE: +44 (0) 118 931 8219 (ext.4390)
>       tHRIL lab: +44 (0) 118 931 6742 (direct line)
> Fax: +44 (0) 118 931 8220
> Department of Cybernetics, University of Reading, Reading, RG6 6AY, UK
> --------------------------------------------------------------------------
> Department web-site
> Gentle/s: Robotic assistance in neuro and motor rehabilitation
> --------------------------------------------------------------------------
> "Everything that can be invented has been invented."
>  -- Charles H. Duell, Commissioner, U.S. Office of Patents, 1899.
> Engineers think that equations approximate the real world.
> Scientists think that the real world approximates equations.
> Mathematicians are unable to make the connection...

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