Re: TouchEvent sub-pixel precision

I've pushed an update to the v1 spec that includes this change here:
https://dvcs.w3.org/hg/webevents/raw-file/v1-errata/touchevents.html (diff
here: https://dvcs.w3.org/hg/webevents/rev/d6c06258cee0). Any feedback?

Thanks,
   Rick

On Fri, May 23, 2014 at 5:03 PM, Rick Byers <rbyers@google.com> wrote:

> See https://code.google.com/p/chromium/issues/detail?id=323935#c34 for
> one example of the difference using floating point touch co-ordinates can
> make on today's phone hardware (Nexus 5 in this case which has 3x3 pixels
> per 1 CSS px).  I expect to land this change in blink soon.
>
> The smoothness of dragging something around is probably more important
> than this drawing example (just harder to visualize in screenshots).
>
> Rick
>
>
> On Wed, May 21, 2014 at 3:24 PM, Simon Pieters <simonp@opera.com> wrote:
>
>> On Thu, 22 May 2014 01:15:59 +0900, Sangwhan Moon <smoon@opera.com>
>> wrote:
>>
>>  Just checked. Seems to still be a long in WebKit land. (Mouse event
>>> coordinates also seem to still be long, do you remember which ones got
>>> subpixel return values?)
>>>
>>
>> http://trac.webkit.org/changeset/168868
>>
>>
>> --
>> Simon Pieters
>> Opera Software
>>
>
>

Received on Friday, 30 May 2014 14:32:51 UTC