[OpenLayers-Dev] [SPAM] Re: OpenLayers performance

[Tomas Novotny]

My little summary:

Doing circles with map using mouse...

...on first PC (Intel Core 2 CPU 6400 @ 2.13GHz, 1GB RAM, Windows XP SP2):
- Safari 3: almost no difference
- FF2: noticeable difference (map makes little jumps now and then 
without patch)
- IE7: big difference (map jumps now and then without patch)
- IE6: huge difference (map only jumps without patch)
- Opera 9: clear difference (map makes jumps now and then without patch)

...on second PC (Intel Pentium M 1.73 GHz, 1GB RAM, Windows XP SP2):
- FF2: noticeable difference (map makes little jumps now and then 
without patch)
- IE7: big difference (map jumps now and then without patch)

My friends can feel the difference on their machines too. Believe me, 
this problem is significant not only for me. I need good-feeling 
solution on most of the platforms.

It is all based on: "It's just not as comfortable as GoogleMaps".

I will be glad to help with implementing such kind of patch - if there 
is will.


Tomas


Paul Spencer wrote:
> Sadly, no noticeable difference to me in Safari 3 or FF 2.
> 
> Paul
> 
> On 10-Apr-08, at 5:59 AM, Tomas Novotny wrote:
>> Hi,
>>
>> please try following examples and compare them:
>>
>> First example shows current map dragging in OL 2.6:
>> http://www.utomase.cz/ol/currentDragging.html
>>
>> Second example shows dragging after my little changes in DragPan.js:
>> http://www.utomase.cz/ol/newDragging.html
>>
>> In second example only layers container is moving via CSS without any
>> center calculations. Those calculations come to play either after 25ms
>> of 'not-moving' or drag end (mouseup).
>>
>>
>> Tomas Novotny
>> _______________________________________________
>> Dev mailing list
>> Dev at openlayers.org
>> http://openlayers.org/mailman/listinfo/dev
> 
> 
> __________________________________________
> 
>    Paul Spencer
>    Chief Technology Officer
>    DM Solutions Group Inc
>    http://www.dmsolutions.ca/
> 
>