Hi,

We have been looking into doing intersections for the vrml library, the
first step for doing sensors.  Has anyone else come across intersection
code, or better yet,sensor code for the vrml library?

Thanks, 

-Randy 

> -----Original Message-----
> From: Patrick AS Sinclair [mailto:pass99r@e ..............]
> Sent: Wednesday, July 12, 2000 4:16 AM
> To: artoolkit@h ..................
> Subject: ARToolKit and VRML
> 
> 
> 
> Hi,
> 
> Has anyone used VRML events/routes/sensors/... to control 
> VRML objects in
> the ARToolKit? 
> 
> I want to create some objects that can be clicked on, either 
> by the mouse
> or some other method (e.g. using a finger or a hand...)
> 
> Is it possible for the ARToolkit to do something like this?
> 
> Thanks
> 
> Patrick Sinclair 
> 
> 
> 

Hi,

We can use VRML sensors with ARToolKit.
libAR.a as a main library is independent from graphics code.
However you cannot use libARgsub.a. you have to make a viewer code
for VRML scene. 

I am using libVRML97 in http://www.openvrml.org/projects/
It was not easy to integrate ARToolKit into libVRML97.
But it is not impossible. I modified viewer code of libVRML97
to integrate libAR.a.

I am not sure if I can provide my modified version of libVRML97
on a website because of the license or policy of libVRML97.
Dose anyone know ?
If it is no problem, I will put my version on a website
with latest version of ARToolKit after Siggraph.

We will do demos using ARToolKit with VRML at Siggraph:

 1) Magic Book: Exploring Transitions in Collaborative AR Interfaces
 2) Augmented Groove: Collaborative Jamming in Augmented Reality 

If you will be at Siggraph, please come to our booth.

--------------------------------------------------------------------
  Hirokazu Kato
  Faculty of Information Sciences
  Hiroshima City University               Phone: 082-830-1705
  Email: kato@s ........................     Fax: 082-830-1435
  URL: http://www.sys.im.hiroshima-cu.ac.jp/people/kato/

Hi Hiro,

This may be good news regarding sensors.  Are the sensors touch sensors,
sphere sensors, plane sensors, etc. that require an intersection test?

Thanks,

> -----Original Message-----
> From: Hirokazu Kato [mailto:kato@s ........................]
> Sent: Wednesday, July 12, 2000 4:04 PM
> To: artoolkit@h ..................
> Subject: RE: ARToolKit and VRML (Intersections?)
> 
> 
> Hi,
> 
> We can use VRML sensors with ARToolKit.
> libAR.a as a main library is independent from graphics code.
> However you cannot use libARgsub.a. you have to make a viewer code
> for VRML scene. 
> 
> I am using libVRML97 in http://www.openvrml.org/projects/
> It was not easy to integrate ARToolKit into libVRML97.
> But it is not impossible. I modified viewer code of libVRML97
> to integrate libAR.a.
> 
> I am not sure if I can provide my modified version of libVRML97
> on a website because of the license or policy of libVRML97.
> Dose anyone know ?
> If it is no problem, I will put my version on a website
> with latest version of ARToolKit after Siggraph.
> 
> We will do demos using ARToolKit with VRML at Siggraph:
> 
>  1) Magic Book: Exploring Transitions in Collaborative AR Interfaces
>  2) Augmented Groove: Collaborative Jamming in Augmented Reality 
> 
> If you will be at Siggraph, please come to our booth.
> 
> --------------------------------------------------------------------
>   Hirokazu Kato
>   Faculty of Information Sciences
>   Hiroshima City University               Phone: 082-830-1705
>   Email: kato@s ........................     Fax: 082-830-1435
>   URL: http://www.sys.im.hiroshima-cu.ac.jp/people/kato/
> 

>This may be good news regarding sensors.  Are the sensors touch sensors,
>sphere sensors, plane sensors, etc. that require an intersection test?

I am using touch sensors.
Also I think libVRML97 supports other sensors as well. 

--------------------------------------------------------------------
  Hirokazu Kato
  Faculty of Information Sciences
  Hiroshima City University               Phone: 082-830-1705
  Email: kato@s ........................     Fax: 082-830-1435
  URL: http://www.sys.im.hiroshima-cu.ac.jp/people/kato/