Jalimo vs. AWT

Wallace Jackson mindtaffyllc at yahoo.com
Wed Jan 23 22:43:13 CET 2008


Ian:

Thanks! Is Jalimo superior to AWT? I don't want to use
Swing if it runs slow on the NEO. I'm not familiar
with GTK is it fast? Thanks... Walls.

PS: Wanted my compass digital/internal for game usage.

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> > Today's Topics:
> 
>    1. Re: JavaFX (Ian Darwin)
>    2. Re: Digital Compass & JavaFX (Georg
> Michelitsch)
>    3. Re: Digital Compass & JavaFX (Schmidt Andr?s)
>    4. Re: Digital Compass & JavaFX (Georg
> Michelitsch)
>    5. Re: digital compass modules (joerg)
>    6. Re: digital compass modules (Tilman Baumann)
>    7. Re: digital compass modules (Robin Paulson)
>    8. Re: digital compass modules (joerg)
>    9. Re: Digital Compass & JavaFX (joerg)
>   10. Re: digital compass modules (Denis)
> > From: Ian Darwin <ian at darwinsys.com>
> To: List for OpenMoko community discussion
> <community at lists.openmoko.org>
> Date: Wed, 23 Jan 2008 12:25:00 -0500
> Subject: Re: JavaFX
> 
> Wallace Jackson wrote:
> > ...  Also, I saw a NEO1973 on Sun's
> > JavaFX announcement release on-line, behind the
> > presenter (bigger than life!)... Does this mean
> that
> > JavaFX is ready to rock for NEO application?
> 
> No. Sun were nice enough to credit OpenMoko for
> making a superior Linux 
> phone (see their blogs from June 2007). But the
> JavaFX package is a 
> complete linux distro with JavaFX installed, based
> on work at a smaller 
> JavaME licensee (Savaje) that Sun acquired. My guess
> is that this will 
> be released next week or the week after, whenever
> Sun's Mobile & 
> Embedded workshop is. Heck, I don't even know if it
> uses X (like 
> OpenMoko) or direct FB (like QTopia). But it will
> probably NOT be easily 
> miscible with the OpenMoko software. It's a complete
> phone stack, like 
> OpenMoko, like Android, like QTopia.
> 
> Now if you want Java for the OpenMoko stack, that
> does exist, as Jalimo 
> (among others). See http://www.jalimo.org. You can
> run command line 
> (ssh'd into the phone), AWT, Swing (a bit slow), or
> GTK-In-Java.
> 
> See http://wiki.openmoko.org/wiki/Java for an
> overview of Java projects.
> 
> 
> > From: Georg Michelitsch <gm_ail at gmx.at>
> To: List for OpenMoko community discussion
> <community at lists.openmoko.org>
> Date: Wed, 23 Jan 2008 18:26:17 +0100
> Subject: Re: Digital Compass & JavaFX
> 
> Wallace Jackson wrote on 01/23/2008 05:45 PM:
> > A digital compass would be a nice feature for VIA
> > (OpenMoko) to have in the phone as a hardware
> default.
> > Is it inexpensive enough in quantity to include in
> the
> > shipping release!? Also, I saw a NEO1973 on Sun's
> > JavaFX announcement release on-line, behind the
> > presenter (bigger than life!)... Does this mean
> that
> > JavaFX is ready to rock for NEO application?
> >
> > Wallace Jackson, Mind Taffy Design &
> Acrobat-3D.com
> >
> >
> >      
>
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> >
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> > community at lists.openmoko.org
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> >
> >   
> I my opinion, including another piece of hardware on
> the Neo (and in
> detail a device which needs to be isolated from any
> magnetic influences
> by other components) would cause big changes in the
> hardware layout, so
> for the Neo1973 it's surely impossible (or only
> possible with again some
> months of delay caused by testing, etc). But if you
> really like to have
> one on this phone, maybe you can add a little
> compass (no electrical
> module, a "real" compass) into one of the alternate
> cases, just a tiny
> little thing of let's say 1cm in diameter. If its
> really small that
> shouldn't cause a big problem and maybe there are
> some others interested
> in some kind of stuff like that too. Disadvantage:
> It'll always be there
> and and need to keep your phone in horizontal
> orientation to read it.
> 
> Greets,
> Georg
> 
> -- 
> 
> 
> 
> 
> > From: Schmidt András <asch at freemail.hu>
> To: List for OpenMoko community discussion
> <community at lists.openmoko.org>
> Date: Wed, 23 Jan 2008 18:40:27 +0100
> Subject: Re: Digital Compass & JavaFX
> 
> At least this solution consumes zero energy :-)
> 
> Georg Michelitsch wrote:
> > I my opinion, including another piece of hardware
> on the Neo (and in
> > detail a device which needs to be isolated from
> any magnetic influences
> > by other components) would cause big changes in
> the hardware layout, so
> > for the Neo1973 it's surely impossible (or only
> possible with again some
> > months of delay caused by testing, etc). But if
> you really like to have
> > one on this phone, maybe you can add a little
> compass (no electrical
> > module, a "real" compass) into one of the
> alternate cases, just a tiny
> > little thing of let's say 1cm in diameter. If its
> really small that
> > shouldn't cause a big problem and maybe there are
> some others interested
> > in some kind of stuff like that too. Disadvantage:
> It'll always be there
> > and and need to keep your phone in horizontal
> orientation to read it.
> >
> > Greets,
> > Georg
> >
> >   
> 
> 
> 
> > From: Georg Michelitsch <gm_ail at gmx.at>
> To: List for OpenMoko community discussion
> <community at lists.openmoko.org>
> Date: Wed, 23 Jan 2008 19:04:52 +0100
> Subject: Re: Digital Compass & JavaFX
> 
> Schmidt András wrote on 01/23/2008 06:40 PM:
> > At least this solution consumes zero energy :-)
> >
> > _______________________________________________
> > OpenMoko community mailing list
> > community at lists.openmoko.org
> >
> http://lists.openmoko.org/mailman/listinfo/community
> >
> Zero energy on the side of FIC, but a lot of work
> for the case
> designers.. I'm not really a designer but I imagine
> that it isn't really
> easy to create something like a phone case.
> 
> -- 
> 
> 
> 
> 
> > From: joerg <joerg.twinklephone at gmx.de>
> To: List for OpenMoko community discussion
> <community at lists.openmoko.org>
> Date: Wed, 23 Jan 2008 19:16:11 +0100
> Subject: Re: digital compass modules
> 
> Am Mi  23. Januar 2008 schrieb Sébastien Lorquet:
> > I'm not sure a magnetic sensor is useful when you
> have a GPS, because a GPS
> > can give you a heading as soon as the measured
> velocity is not zero!
> You get heading of *velocity vector*, NOT heading of
> *device*! So for Andras' 
> intended use, this is worth nothing. It works only
> for objects like a car 
> that supposedly are not able to move in a direction
> different to "straight 
> forward". I even guess if you drive backwards with
> your car, the map on those 
> navi-units will rotate top down.
> 
> j
> 
> 
> > From: Tilman Baumann <tilman at baumann.name>
> To: List for OpenMoko community discussion
> <community at lists.openmoko.org>
> Date: Wed, 23 Jan 2008 19:22:32 +0100
> Subject: Re: digital compass modules
> 
> François TOURDE wrote:
> > Le 13901ième jour après Epoch,
> > Schmidt András écrivait:
> > 
> >> Tilman Baumann wrote:
> >>> Bluetooth would be nice. You would need no
> hardware hacks on the
> >>> phone itself.
> >>> Should be pretty easy to hack a
> bluetooth->serial converter (like
> >>> BlueSMiRF from sparkfun) to the sensor. Maybe
> with a little
> >>> microcontroller glue in between.
> >>> Bluetooth is very simple to code and simple to
> handle.
> >> I was thinking about two possible applications:
> >>
> >>   1. The map of a GPS map viewer application
> turns when you turn the
> >>      machine so it is always aligned with the
> environment (this feature
> >>      is included on some GPS tools.)
> > 
> > Maybe the 3D accels can do that. And the GPS can
> be used as a bearing
> > indicator, when you move. No magnetic device
> needed in this case.
> 
> Gyroscopes is what you look for. ;)
> Accelerameters don't see rotational movings.
> 
> 
> > From: "Robin Paulson" <robin.paulson at gmail.com>
> To: "List for OpenMoko community discussion"
> <community at lists.openmoko.org>
> Date: Thu, 24 Jan 2008 07:23:33 +1300
> Subject: Re: digital compass modules
> 
> On 24/01/2008, Schmidt András <asch at freemail.hu>
> wrote:
> > I have the same opinion though I don't know what
> INS resolves to :-).
> > Could you tell what INS stands for?
> > Thanks!
> 
> inertial navigation system
> 
> i.e. i know where i am now, if i measure the
> distance i move and the
> direction i go in, i will know where i am again in
> the future. repeat
> over and over again to continuously update my
> position. unfortunately,
> errors are summed and quickly become quite big
> 
> 
> > From: joerg <joerg.twinklephone at gmx.de>
> To: List for OpenMoko community discussion
> <community at lists.openmoko.org>
> Date: Wed, 23 Jan 2008 19:41:49 +0100
> Subject: Re: digital compass modules
> 
> Am Mi  23. Januar 2008 schrieb Tilman Baumann:
> > François TOURDE wrote:
> 
> > > Maybe the 3D accels can do that. And the GPS can
> be used as a bearing
> > > indicator, when you move. No magnetic device
> needed in this case.
> As stated in prev posting, GPS _can_not_ deliver
> bearing of device at all. 
> Imagine having the GTA in your pocket while moving -
> there's not the faintest 
> relation between movement vector as seen by GPS and
> bearing of GTA.
> 
> >
> > Gyroscopes is what you look for. ;)
> > Accelerameters don't see rotational movings.
> Though gyro won't help here at all, i think TWO
> 3D-accelerometers placed some 
> distance from each other in a system make a nice
> gyro with the aid of some 
> mathematics in driver. IIRC there was mentioned more
> than one acc-meter for 
> the GTA. I thought that's exactly for this purpose.
> 
> jOERG
> 
> 
> > From: joerg <joerg.twinklephone at gmx.de>
> To: List for OpenMoko community discussion
> <community at lists.openmoko.org>
> Date: Wed, 23 Jan 2008 19:50:19 +0100
> Subject: Re: Digital Compass & JavaFX
> 
> Am Mi  23. Januar 2008 schrieb Wallace Jackson:
> > A digital compass would be a nice feature for VIA
> > (OpenMoko) to have in the phone as a hardware
> default.
> > Is it inexpensive enough in quantity to include in
> the
> > shipping release!? 
>
http://www.sparkfun.com/commerce/product_info.php?products_id=7892
> 
> Price: $44.95  
> 
> 10-99: $40.46 each (10% off) 
> 100 or more: $35.96 each (20% off) 
> 
> :-(
> jOERG
> 
> 
> 
> > From: Denis <shulyaka at gmail.com>
> To: "List for OpenMoko community discussion"
> <community at lists.openmoko.org>
> Date: Wed, 23 Jan 2008 22:05:34 +0300
> Subject: Re: digital compass modules
> 
> I think the accelerometers don't provide enough
> accuracy.
> 
> 2008/1/23, joerg <joerg.twinklephone at gmx.de>:
> > Am Mi  23. Januar 2008 schrieb Tilman Baumann:
> > > François TOURDE wrote:
> >
> > > > Maybe the 3D accels can do that. And the GPS
> can be used as a bearing
> > > > indicator, when you move. No magnetic device
> needed in this case.
> > As stated in prev posting, GPS _can_not_ deliver
> bearing of device at all.
> > Imagine having the GTA in your pocket while moving
> - there's not the
> > faintest
> > relation between movement vector as seen by GPS
> and bearing of GTA.
> >
> > >
> > > Gyroscopes is what you look for. ;)
> > > Accelerameters don't see rotational movings.
> > Though gyro won't help here at all, i think TWO
> 3D-accelerometers placed
> > some
> > distance from each other in a system make a nice
> gyro with the aid of some
> > mathematics in driver. IIRC there was mentioned
> more than one acc-meter for
> > the GTA. I thought that's exactly for this
> purpose.
> >
> > jOERG
> >
> > _______________________________________________
> > OpenMoko community mailing list
> > community at lists.openmoko.org
> >
> http://lists.openmoko.org/mailman/listinfo/community
> >
> 
> 
> > _______________________________________________
> OpenMoko community mailing list
> community at lists.openmoko.org
> http://lists.openmoko.org/mailman/listinfo/community
> 



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