[OpenLayers-Dev] click & pinch overhaul

[Cédric MOULLET]

Great ! Comments inline.
Thanks a lot, Tim.
Cédric

On Wed, Mar 9, 2011 at 8:11 AM, Tim Schaub <tschaub at opengeo.org> wrote:

> I've updated the sandbox with two changes:
>
> 1) Double click pixel tolerance is now 13.  This should give fewer ignored
> double clicks.
>

Just tested on Android: works very well for me.

>
> 2) The pinch handler now stops the browser default behavior on handled
> touch move events.  This may stop the page drag on older iOS.
>
> http://dev.openlayers.org/sandbox/tschaub/click/examples/mobile.html
>

Also works perfectly on iOS 3.1.3

>
> I'm still unclear about whether the undesired page dragging only occurs in
> the sandbox example, or whether you also see it on the trunk.
>
Ok in you sandbox (
http://dev.openlayers.org/sandbox/tschaub/click/examples/mobile.html) and
not ok in the current trunk.

>
> Thanks for the testing & feedback.
> Tim
>
>
> On 3/8/11 2:08 PM, Cédric MOULLET wrote:
>
>> Hi Tim,
>>
>> It's really a great function, and so fast !!!
>> I put two answers inline,
>> Cédric
>>
>> On Tue, Mar 8, 2011 at 8:48 AM, Tim Schaub <tschaub at opengeo.org
>> <mailto:tschaub at opengeo.org>> wrote:
>>
>>    Thanks for the report Cédric.  Comments below.
>>
>>
>>    On 3/7/11 10:49 AM, Cédric MOULLET wrote:
>>
>>        Hi Tim,
>>
>>        Thanks for these improvements. I have tested on several
>>        plattforms (see
>>
>> https://spreadsheets.google.com/ccc?key=0AjTbLQNm01pfdEtUc0FkVm9DYnBtMTNkcWpTemw3T0E&authkey=CJGm_vQF&hl=fr#gid=0
>>        <
>> https://spreadsheets.google.com/ccc?key=0AjTbLQNm01pfdEtUc0FkVm9DYnBtMTNkcWpTemw3T0E&authkey=CJGm_vQF&hl=fr#gid=0
>> >
>>        <
>> https://spreadsheets.google.com/ccc?key=0AjTbLQNm01pfdEtUc0FkVm9DYnBtMTNkcWpTemw3T0E&authkey=CJGm_vQF&hl=fr#gid=0
>>        <
>> https://spreadsheets.google.com/ccc?key=0AjTbLQNm01pfdEtUc0FkVm9DYnBtMTNkcWpTemw3T0E&authkey=CJGm_vQF&hl=fr#gid=0
>> >>).
>>        I face the same issues like Steven. In addition, I have observed
>> the
>>        following things:
>>        - iTouch 3.1.3: Pinch Zoom Dragging -> it moves the browser
>>        instead of
>>        the map and makes the function ineffective
>>
>>
>>    I also saw the same on an iTouch before upgrading.  But I'm pretty
>>    sure I saw it on the trunk (instead of just on this sandbox).  Are
>>    you seeing the issue in this sandbox and not on the trunk?  (I've
>>    only got access to an upgraded iTouch, and pinch zooming works there.)
>>
>>
>> I have tested on your sandbox: Here is a small video that presents the
>> issue:
>> http://www.youtube.com/watch?v=6VoVKeOy9dg&feature=player_embedded
>> <http://www.youtube.com/watch?v=6VoVKeOy9dg&feature=player_embedded>
>> (sorry for the quality, but I'm not Spielberg). I can observe that the
>> pinch function is working, but the browser window moves. I don't observe
>> that on the iPad 4.2. If it's an iOS version issue, I don't think it's
>> so important.
>>
>>
>>
>>        - Android Nexus S: the double click seems to work a bit better,
>>        but has
>>        still issues. No idea why (but this is a very empirical
>> observation)
>>
>>
>>    Sounds like the 10 pixel tolerance for double clicks may not be enough.
>>
>>    I'd be curious what you see for pixel displacement on typical
>>    double-tap sequences (on a touch device).
>>
>>    http://dev.openlayers.org/sandbox/tschaub/click/examples/dpx.html
>>
>>
>> I have added an average and standard deviation function:
>> http://dev.openlayers.org/sandbox/cmoullet/openlayers/examples/dpx.html
>>
>> iTouch 3.1.3: pair: 30 - avg: 4.2 - std: 3.1
>> iPad 4.2: pair 30 - avg 6.7 - std: 2.5
>> Android Nexus S: pair 30 - avg: 8.3 - std: 4.5
>>
>> These are of course very empirical results, but it seems that I'm less
>> precise on an Android nexus S. So the tolerance should be a bit bigger.
>>
>
>
> --
> Tim Schaub
> OpenGeo - http://opengeo.org
> Expert service straight from the developers.
> _______________________________________________
> Dev mailing list
> Dev at lists.osgeo.org
> http://lists.osgeo.org/mailman/listinfo/openlayers-dev
>



-- 
Political blog: http://cedricmoullet.blogspot.com/
Welcome to my world: http://www.cedricmoullet.com/
My Linked In profile: http://www.linkedin.com/in/cedricmoullet
Twitter: http://twitter.com/cedricmoullet
Home sweet home:
http://map.geo.admin.ch/?crosshair=bowl&zoom=11&X=185241.24219&Y=561288.90625&bgOpacity=0&selectedNode=node_ch.swisstopo.fixpunkte-lage1
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://lists.osgeo.org/pipermail/openlayers-dev/attachments/20110309/309416ec/attachment.html