Good pinch-to-zoom in image object?

[Brian Milby]

That would be really cool (zoomable property)!  It could be wired to do
pan, zoom, and rotate (possibly as separate properties).

I put this on GitHub:
https://github.com/bwmilby/lc-misc/tree/master/PinchZoom

My first go was trying to use more arrays, but renaming the variable on the
fly got to be too much of a pain.  I may go back and make them more in line
with LC best practices (and really could use one large array).

I posted it as a script only stack, but I couldn't get it to work that
way.  I copied it into a button and set that as the behavior and it worked
fine.  I'm sure it is just a problem with the way I'm trying to do it.
It's mostly what Richard posted, but I changed it to a `touchStart` message
(and just wrapped the init code directly).  What was really cool though is
that I was zooming a compiled SVG drawing in an image.

On Sat, Jan 27, 2018 at 6:01 PM, Alex Tweedly via use-livecode <
use-livecode at lists.runrev.com> wrote:

> On 27/01/2018 22:51, Richard Gaskin via use-livecode wrote:
>
>> All this has me wondering:  Have you ever seen a mobile app that displays
>> images but *doesn't* support pinch-to-zoom?
>>
>> Ummm - on IOS I can think of  (I've just re-tested these to be certain):
> Facebook
> WhatsApp
> kind of ... Instagram
>     (it zooms - but then shrinks back as soon as you release, so it's
> barely usable, unlike other apps which hold the zoom level and allow you to
> move the zoomed image around)
>
> and also I believe, Amazon App (I can't retest it now - I was so
> annoyed/disappointed with the app that I deleted it for various reasons -
> but I am sure inability to zoom properly was one of them). Now, on IOS I
> only use Amazon through Safari  - and even then Amazon doesn't show all the
> info available on a laptop, unless you specifically tell Safari/IOS to
> pretend to be desktop version).
>
> But - yes, I absolutely agree - 'zoomable' would be a useful property.
> -- Alex.
>
>
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