Assuming you want to rotate about the center of the object, you probably want
to translate the object so it's center is at the origin, do the rotation, and
then do the inverse of the translation. If you do that, the order of the
recognizers shouldn't matter.
Thanks,
Jon
On Jun 14, 2013, at 7:26 PM, Rick Mann <rm...@latencyzero.com> wrote:
> So, this sort of works, and fails spectacularly.
>
> The problem is that I can't specify the order in which each gesture's values
> are applied to the view's transform.
>
> So, I end up with a side-to-side panning gesture making the image move
> up-and-down when it's rotated about 90°.
>
>
> On Jun 14, 2013, at 18:09 , David Rowland <rowla...@sbcglobal.net> wrote:
>
>> Isn't it a matter of implementing this delegate method?
>>
>> - (BOOL)gestureRecognizer:(UIGestureRecognizer *)gestureRecognizer
>> shouldRecognizeSimultaneouslyWithGestureRecognizer:(UIGestureRecognizer
>> *)otherGestureRecognizer
>> {
>> return YES;
>> }
>>
>>
>>
>> David
>>
>>
>>
>>
>>
>> On Jun 14, 2013, at 5:41 PM, Rick Mann <rm...@latencyzero.com> wrote:
>>
>>> The Apple Maps application allows you to pan, zoom, and rotate in a single
>>> two-finger gesture.
>>>
>>> Is that done with three gesture recognizers all operating simultaneously?
>>> Or are they just handling the touches directly?
>>>
>>> I don't see how to get a combined transform out of the three separate
>>> gesture recognizers.
>>>
>>> --
>>> Rick
>>>
>>>
>>>
>>>
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>>
>
>
> --
> Rick
>
>
>
>
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