Hacking the GUI

Jim sims sims at ezpzapps.com
Wed Oct 9 07:45:29 CEST 2013


I just spent a few hours on an iOS app where i was using Grab to move a
large, 2-4mb, photo around.

Was jerky, until i realized that the scroller was accounting for the
jerkiness.

Found a way to do preopenstack before and after that moving process
(killing reviving) the scroller.

Can grab photo and spin it around now.

Is there a scroller? Are you on iOS?

sims

On Wednesday, October 9, 2013, Earthednet-wp wrote:

> Folks,
> Thanks for the comments. What I'm doing is dragging an image that is
> larger than the viewing area. I set the loc of the image (according to the
> mouseloc) inside a repeat loop. The general idea is below.
>
> On drag
>   repeat while the mouseStillDown
>        --set the loc of the image according to the mouseloc
>   end repeat
> end drag
>
> The motion of the image is pretty jerky. It's a pretty large image. The
> reason I wanted to add and subtract points is to calculate the new loc for
> the image. I do this now by separating out x and y and operating on them
> individually. I suspect that most of the time is spent moving that large
> image, though, instead of doing the calculations.
>
> The image is a map, and I intend on plotting symbols on it. To speed this
> up, I'm plotting on a snapshot of the visible part of the image (which sits
> on top of the visible part). The plot will need to be updated each time the
> map is dragged or is magnification changed.
>
> If there is a faster way to move a large image around, I'd like to hear of
> it.
>
> Thanks again,
> Bill
>
> William Prothero
> http://es.earthednet.org
>
> On Oct 8, 2013, at 7:33 PM, "J. Landman Gay" <jacque at hyperactivesw.com<javascript:;>>
> wrote:
>
> > On 10/8/13 9:29 PM, Monte Goulding wrote:
> >>
> >> On 09/10/2013, at 1:25 PM, J. Landman Gay wrote:
> >>
> >>> I think my answer was condescending, I apologize.
> >>
> >> Maybe I read a different answer ;-)
> >>>
> >>> The dictionary in 6.1.1 doesn't have an example of addition in the
> points entry. Is that in a different version's dictionary?
> >>
> >> It's the point entry not the points entry.
> >
> > Aha. Thanks, found it.
> >
> > --
> > Jacqueline Landman Gay         |     jacque at hyperactivesw.com<javascript:;>
> > HyperActive Software           |     http://www.hyperactivesw.com
> >
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