TUIO, Fiducials and Graph

First of all: thank you very much for this wonderfull software. Even as a non-programmer i have a lot of fun with.

I just was trying to figure out if there is a simple way for combining Fiducial symbols with the graph function. The basic idea would be to to use a fiducial as a node. The fiducial ID should act as a category so that fiducials with the same id could be connected. Moving the fiducial would move the node.

After a few hours of trial&error i came up with: nothing ;-)

Maybe someone could help (ofcourse only if that is not too complicated and time consuming for you)...

TIA,

Sandor

Hi. I'm a bit programmer, and curious to help if I can, because I am playing with the Graph module since a few days. But I just don't know what Fiducial symbols or IDs are.

Dear Cedric,

tnaks for your answer. Would be realy cool to set up some collaboration. Fiducials are simply said abstract simbold easyly recognisable by computers. Far as i know they have they history in the chip fabrication where roboits can identify a specific component by their (printed) simbol.

For me is the usage in tangible/multitouch computing.

The most know application (ofcorse ther is also MS-Surface out there) is the reactable: http://reactable.iua.upf.edu/

Id you would like to start with (an i belive that is fascinating) you should grab the TUIO library for NodeBox.

You can use the TUIOsimulator to test out fiducials without any hardware:

1. fire up the TUIO examples in NodeBox (from the Library)
2. download the TUIOsimulator an play around
http://prdownloads.sourceforge.net/reactivision/TUIO_Simulator-1.4pre2.zip?download

Or you can make a very simple setup if you have a webcam:

1. Take a sheet of A3 white paper and put it on your desk. Point you webcam at you desk, so that the cam can see a the paper clearly
2. download the software and calibrate:
http://prdownloads.sourceforge.net/reactivision/reacTIVision-1.4pre2-mac.zip?download
3. print out some fiducials - they are in the download as a PDF file
4. fire up the TUIO example for NodeBox (in the library download)

Unfortunatly i'm very busy this week, but i'll try to put together some more infos about my ideas etc.

Have fun!

Sandor

arrrgghhh... there is no "edit" button here... So sorry for the zillions of grammars...

Dear Sandor. This looks very interesting, but it is a bit too much for me to help with TUIO now, mostly because of time constraints. I was just playing with the Graph module and expected to help with that. I am a total newbie with TUIO.

Hey Cedric. No problem... it is realy complicated stuff... Right now i am also quite bussy with "regular" work. But i will post some results her once i get time to do something...