Experimental Physics and
Industrial Control System

Pete Jemian <[email protected]> · Wed, 13 Dec 2017 10:46:08 -0600

More problems come with the multi-touch features common to touchscreen

displays. The GUIs in standard use do not consider the possibility that

more than one widget is active at the same time. It is an assumption

that only one control is active.

Imagine the mixed message a control system receives when GO and STOP

buttons are both active. Or MOVE+ and MOVE-.

Proceed cautiously and expect that some features will need more attention.

Pete

On 12/13/2017 10:18 AM, Mark Engbretson wrote:

FWIIS,  None of the existing EPICS GUI software have been designed or

optimized for use with any touch screen device. While this is not much

of an issue if you are just pushing buttons, it starts to get ugly if

multiple displays are  the same screen, or you start to deal with

numeric and text entry. Your probably still have to use a keyboard and

mouse/pointing device more often that you would like, and lifting an arm

to a screen to change options gets old VERY fast, as does resizing

clickable regions to be finger sized and not mouse pointer sized.

If you have an apple/android phone/tablet, I would suggest installing

caqtdm on that hardware. Would give you an idea of the general feel of

using a touch device before you buy one. Or borrow someone touch screen

windows laptop.

*From:*[email protected]

[mailto:[email protected]] *On Behalf Of *yak man

*Sent:* Wednesday, December 13, 2017 1:13 AM
*To:* [email protected]
*Subject:* Touch panel pc to operator console

Dear all,

Im looking to a linux touch panel pc, I'll use that in the operators

console, therefore the reliability is important. The size could be 19.

Im planning to use that with CSS. Please give me your suggestions based

on the experience.

Have you got models/brands good/bad  to this ?

Regards,

-Mauro

Sent from my tracking device

--
----------------------------------------------------------
 Pete R. Jemian, Ph.D.                <[email protected]>
 Beam line Controls and Data Acquisition, Group Leader
 Advanced Photon Source,   Argonne National Laboratory
 Argonne, IL  60439                   630 - 252 - 3189
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    Education is the one thing for which people
       are willing to pay yet not receive.
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Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System