maemo.org - Talk - Capacitive screen for N900?

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- Nokia N900 (https://talk.maemo.org/forumdisplay.php?f=44)

- - Capacitive screen for N900? (https://talk.maemo.org/showthread.php?t=63169)

Re: Capacitive screen for N900?

Quote:

Originally Posted by TiagoTiago (Post 830381)

multitouch is quite helpful for gaming, and it does allow for certain interface approaches not possible with single touch

Which interface approaches are these?

Re: Capacitive screen for N900?

Quote:

Originally Posted by PMaff (Post 830864)

Afaics the multitouch is limited by the size of the window that is
displayed (at max the screen size of N900).
Which will also result in using multitouch multiple
times for certain zoom factors.
In that case there is no difference to buttons or other zoom
utilities.
Correct?

1. It doesn't have to be linear.
2. They can make use of acceleration to control the scale, just like on mice.

ps: try one.

Re: Capacitive screen for N900?

Quote:

Originally Posted by PMaff (Post 830358)

The comparison to TV remote is wrong:
better:
why do we need a TV remote that you can only use with gloves made of anti-static conductive foam and where you have to press two buttons at once to get one action.
:D

Because there is no other good way to implement the action. Multi touch, like a right mouse button, is used when other normal methods FAIL. IOW, when it friggin' fails to zoom in otherwise while the ability to zoom in is important. Nokia's hack is to swirl clockwise or anti clockwise which 1) takes longer 2) is a novel movement/gesture normally not made (circles) which might be related to that it doesn't work properly (not always detected its supposed to be zooming).

Quote:

Sorry but I never needed Multitouch up to now.
In my opinion a user interface that needs two fingers instead
of one is somewhat broken.

My mouse requires 2 fingers at least. I find your statement hilarious given Macs for a long time only had 1 mouse button. :D a traditional trackpad or trackpoint as found on a ThinkPad also requires 2 (1 for pointing, 1 for clicking) whereas there is less movement by the hand in the case of newer ThinkPads as well as newer Apple devices sporting one.

Quote:

It seems that resistive touchscreen can do multitouch:
http://en.wikipedia.org/wiki/Resistive_touchscreen
I for myself do not see the need for it.

Why I rather like resistive touchscreen:
"Resistive touchscreen technology works well with almost any stylus-like object. In some circumstances, this is more desirable than a capacitive touchscreen, which has to be operated with a capacitive pointer, such as a bare finger."
and
"Capacitive sensors detect anything which is conductive or having dielectric properties.
...
A standard stylus cannot be used for capacitive sensing, unless it is tipped with some form of conductive material, such as anti-static conductive foam.

Capacitive touchscreens are more expensive to manufacture and offer a lesser degree of accuracy than resistive touchscreens.[5]

Capacitive touchscreens cannot be used with gloves, and can fail to sense correctly with even the smallest amounts of water - you could use a resistive screen briefly in the rain, or with wet hands, not so with a capacitive screen.
..."
http://en.wikipedia.org/wiki/Capacitive_sensing

I think this is a huge disadvantage for capacitive touchscreens
as I always want the choice between stylus, my finger and a glove
(if it is cold outside).
Needing an additional property ("having dielectric properties")
is senseless for such devices.

Nokia N8 has a solution for this which is provided in selected countries (e.g. Finland). Since I'm already using a bare finger to interact with N900, I wouldn't mind being forced having to use a bare finger (ie. a capacitive screen). The latest Nokia devices seem to have a capacitive screen, including the new N-Series flagship N8. So unfortunately for you it appears Nokia is drifting away from resisitive. Same happened to Palm, Apple, et al.

Re: Capacitive screen for N900?

Quote:

Originally Posted by ysss (Post 830885)

1. It doesn't have to be linear.
2. They can make use of acceleration to control the scale, just like on mice.

ps: try one.

1,2: same accounts for other one finger zoom possibilities

Re: Capacitive screen for N900?

Quote:

Originally Posted by allnameswereout (Post 830934)

Nokia's hack is to swirl clockwise or anti clockwise which 1) takes longer 2) is a novel movement/gesture normally not made (circles) which might be related to that it doesn't work properly (not always detected its supposed to be zooming).

Ok, you are right, the swirl is not the best way either.

Quote:

So now we compare mouse and trackball to the possibilities on
a smartphone or tablet?
;)

The only argument that comes to my mind pro multitouch is the
problem to make a difference between move and zoom when
using fingers on the screen.
If it is not for using fingers on the screen, the zoom button of the
N900 can do all the other stuff (acceleration if pressed longer,
zoom once if touched once).

Quote:

As I said: if it has to be accurate the stick has advantages.

Quote:

The latest Nokia devices seem to have a capacitive screen, including the new N-Series flagship N8. So unfortunately for you it appears Nokia is drifting away from resisitive. Same happened to Palm, Apple, et al.

That's bad.
:(
Wonder what will be the difference to Android and Apple then?

Re: Capacitive screen for N900?

these 2 have their own advantages. Capacitive have multi touch capability while resistive have pressure capability. Both doesn't have both capabilities so they should not be compared at all. It's just like comparing the colors black and white?

Re: Capacitive screen for N900?

If you look at the SNES emulator for Android phones, you get the buttons superimposed over the game.

With a lack of hardware keyboard, capacitive screens are the only way to support multiple inputs.
This is not a problem with the N900 as the hardware keyboard offers that support.

As I see it this is the only real argument for capacitive over resistive.
For ideal function a resistive screen needs to be accompanied by a keyboard capable of multiple inputs.

Re: Capacitive screen for N900?

does Meego designed with Capacitive in mind or Resistive in Mind?
:cool: :confused:

Re: Capacitive screen for N900?

What is stopping the N900 from having multitouch resistive

Is it the drivers, the screen itself, or the hardware chipset

or a combination of all 3 ?

Re: Capacitive screen for N900?

when there is less responses... i just feel like the end of N900 times..