I started looking for some examples and found some JS code that could probably be adapted. I would take a crack at it, but won't have time probably until the weekend. Here's the link: https://groups.google.com/forum/#!topic/PhoneGap/QpXAzVo_Fi8
Mulling it over in my head, I wonder if it may be good to use a timer though so we don't try to redraw faster than a decent refresh rate. Something like when we get the touch start, set a flag and send an UpdateImage message every x ticks. Then the touchmove handlers would just be updating the latest finger positions. When the touch ends, clear the flag (so the UpdateImages won't reactivate itself). If moving faster than the screen refresh, it would save some of the position math (especially in the code referenced above). I'm probably explaining that horribly, but it is late :) On Wed, Jan 24, 2018 at 9:32 PM Richard Gaskin via use-livecode < use-livecode@lists.runrev.com> wrote: > There's a Lesson at the LC site on doing pinch-to-zoom with images, but > it's kinda wonky (zooms okay, but at object center rather than > touchpoint), and as I hunt around I see most people just give up an use > a browser object. > > I have an app in which I'd rather not add the overhead of embedding an > entire browser process with my process just to get a good pinch-to-zoom, > so if there's a script out there that handles that well in an image > object I'd be grateful for the time saved. > > TIA - > > -- > Richard Gaskin > Fourth World Systems > Software Design and Development for the Desktop, Mobile, and the Web > ____________________________________________________________________ > ambassa...@fourthworld.com http://www.FourthWorld.com > > _______________________________________________ > use-livecode mailing list > use-livecode@lists.runrev.com > Please visit this url to subscribe, unsubscribe and manage your > subscription preferences: > http://lists.runrev.com/mailman/listinfo/use-livecode > _______________________________________________ use-livecode mailing list use-livecode@lists.runrev.com Please visit this url to subscribe, unsubscribe and manage your subscription preferences: http://lists.runrev.com/mailman/listinfo/use-livecode
