Re: Multitouch on FR ... imho should be possible to mimic

2009-03-25 Thread Helge Hafting
The Digital Pioneer wrote: It's tough to say until someone tries it. I don't have the GUI expertise to do anything of the sort, but I'd love to see someone try it. Testing is easy - no expertice needed. Edit /etc/X11/Xserver You'll find the parameter list for the xserver under a GTA02 (or

Re: Multitouch on FR ... imho should be possible to mimic

2009-03-25 Thread Risto H. Kurppa
You saw this, didn't you: http://lists.openmoko.org/pipermail/community/2009-March/044481.html r -- | risto h. kurppa | risto at kurppa dot fi | http://risto.kurppa.fi ___ Openmoko community mailing list community@lists.openmoko.org

Re: Multitouch on FR ... imho should be possible to mimic

2009-03-25 Thread The Digital Pioneer
That's an excellent point, Helge. I just tried it, and it works quite well. The cursor doesn't go exactly to the midpoint, but I would say it's definitely usable data. It moves almost exactly as expected. ___ Openmoko community mailing list

Re: Multitouch on FR ... imho should be possible to mimic

2009-03-24 Thread Joerg Reisenweber
This has been discussed multiple times since last ~15months. The basic assumption a middle-point when touching with 2 fingers might be anyway exactly in the middle is incorrect. It depends on pressure of each touchpoint. There have been many different opinions about feasibility of this approach,

Re: Multitouch on FR ... imho should be possible to mimic

2009-03-24 Thread The Digital Pioneer
It's tough to say until someone tries it. I don't have the GUI expertise to do anything of the sort, but I'd love to see someone try it. ___ Openmoko community mailing list community@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/community

Re: Multitouch on FR ... imho should be possible to mimic

2009-03-24 Thread Rafael Ignacio Zurita
--- On Tue, 3/24/09, Joerg Reisenweber jo...@openmoko.org wrote: This has been discussed multiple times since last ~15months. The basic assumption a middle-point when touching with 2 fingers might be anyway exactly in the middle is incorrect. It depends on pressure of each touchpoint.

Re: Multitouch on FR ... imho should be possible to mimic

2009-03-20 Thread Helge Hafting
Stefan Monnier wrote: FWIW, there's another source of info that might be used: jitter. When you have two fingers pressed, not only the reported position is more-or-less the middle point, but it's also jittery. So you could detect such jitter as a tell-tale of multitouch and then use the

Re: Multitouch on FR ... imho should be possible to mimic

2009-03-20 Thread Stefan Monnier
Unfortunately, the jitter has many interpretations. * The user is moving the fingers apart * The user is moving the fingers together * The user holds the finger still, but pressure varies I think the jitter you should see with multitouch should be quite different from finger moves: much

Re: Multitouch on FR ... imho should be possible to mimic

2009-03-19 Thread The Digital Pioneer
I have wondered if this was possible before, and I don't see why it can't be implemented, but it is limited as the only motion it could really detect (I would think) is moving the fingers closer or further, and if you move both fingers apart at the same rate, the midpoint doesn't move, so you have

Re: Multitouch on FR ... imho should be possible to mimic

2009-03-19 Thread Yaroslav Halchenko
you can do rotation as well -- just a little bit of 'logic' to decide either it is a linear or circular motion (of 2nd finger in respect to the 1st one) On Thu, 19 Mar 2009, The Digital Pioneer wrote: I have wondered if this was possible before, and I don't see why it can't be

Re: Multitouch on FR ... imho should be possible to mimic

2009-03-19 Thread The Digital Pioneer
Ahh, right, of course. You just have to remember to keep one finger still. :) ___ Openmoko community mailing list community@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/community

Re: Multitouch on FR ... imho should be possible to mimic

2009-03-19 Thread Yaroslav Halchenko
that is why may be 2nd way (raising 1st finger up after 2nd reached the screen, so there are 2 jumps in coordinates: d/2, and d/2 in a single direction) might be preferable way -- then you drive your 'multitouch' mode with any gesture you like while assuming that 'other' finger is still in the

Re: Multitouch on FR ... imho should be possible to mimic

2009-03-19 Thread Stefan Monnier
FWIW, there's another source of info that might be used: jitter. When you have two fingers pressed, not only the reported position is more-or-less the middle point, but it's also jittery. So you could detect such jitter as a tell-tale of multitouch and then use the jitter itself (orientation and