Re: [Jmol-users] JSmol Touch Screen

[Otis R. <osr...@ch...>]

Bob,

I'm pretty sure my code branch is not working on your Windows 8 system. My touch Move page does not contain reference to the words "hover" or "alt." That's the keyboard Move page. I need to put a select touch screen mode link on the page. On my touch screen page, I use only "LEFT" bindings for translation, rotation, and conformation rotation.

If you enter the following (with tilde - this forces JavaScript) in my script field:

~isTouch = true

and then click the Move button, you'll force the touch screen Move screen. The instructions use no key strokes at all.

From everything I have read, a touch-pause is a hover on iPad and other touch screens, and that seems to work on my iPad. On your system, I think that small box you saw is a hover box. I've also read that this approach to hover (touch-puase) creates a double touch problems. This touch-pause can actually be used to trigger a style sheet a:hover style change. I think what's happening is that the touch first triggers a hover event and then it triggers a click event.

Anyway, I'd sure be interested to see what you get with the instructions on the isTouch = true Move page. On this page, I actually use the instruction touch-pause-drag.

Otis

--
Otis Rothenberger
ot...@ch...
http://chemagic.com




On Feb 8, 2013, at 5:26 PM, Robert Hanson wrote:

> I have a touchscreen Windows 8 machine that I got specifically for this purpose. There are issues, primarily in that sometimes it starts firing BOTH mouse and touch events, resulting in an apparent double click. There must be a way around that, but I haven't figured it out yet.  See below.
> 
> 
> On Thu, Feb 7, 2013 at 11:46 PM, Otis Rothenberger <osr...@ch...> wrote:
> I have our JSmol model kit set with a code branch for iPad and touch screen computers. I can test this on my iPad, but I don't have access to a touch screen computer. Consequently, I don't know if the code branch works or if the touch move models approach works on a touch screen computer at all.
> 
> If anyone has access to a touch screen computer, would you test the following:
> 
> 1) Load http://chemagic.com/modelkit/
> 
> 
> mouse operation is a bit slow - I don't fully understand why, unless you are doing some serious background processing for some reason. But the touch interface drag fails to do anything more than a slight motion of the structure.
> 
> 
>  
> 2) On the initial Load screen, click the duplicate link.
>  
> 
> 3) Click the Move button at the bottom of the page.
> 
> 
>  
> Hopefully, the screen that shows is the touch/move screen for touch computers - not the keypress-drag screen for mouse action.
> 
> yes 
> 
> 4) See if the move instructions work.
> 
> 
> I have no idea what a "hover" would be with a touch. 
> 
> Regular drag seems stifled. Alt-drag does a z-axis rotation.
> 
> Ah, if I touch and hold until a 1x1cm box appears briefly, then that starts a standard drag.
> 
>  
> On the touch screen approach, a rather clumsy system of sequentially selecting multiple models is used. Repeated clicking sequentially selects models.
> 
> 
> nothing happens with CTRL-drag.
> 
> 
> Any help on this is appreciated.
> 
> 
> If you go into core.z.js and find
> 
> //// org\jmol\awtjs2d\Mouse.js 
> 
> you can add alert() or System.out.println()or
>  document.title statements that will allow you to do some
> 
>  tracking of what is going to the mouse.
> 
> Bob
> 
> 
> 
>  
> Otis
> 
> --
> Otis Rothenberger
> ot...@ch...
> http://chemagic.com
> 
> 
> 
> 
> 
> 
> 
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> 
> -- 
> Robert M. Hanson
> Larson-Anderson Professor of Chemistry
> Chair, Chemistry Department
> St. Olaf College
> Northfield, MN
> http://www.stolaf.edu/people/hansonr
> 
> 
> If nature does not answer first what we want,
> it is better to take what answer we get. 
> 
> -- Josiah Willard Gibbs, Lecture XXX, Monday, February 5, 1900
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