[OpenLayers-Users] Release?

[Corey Puffalt]

Wow you guys work fast!  Thanks for all your work on this.

Sorry about the dupe.

Regarding the performance issue, is the alpha-transparency hack only needed
for pngs or is it all file types that require this?  The reason I'm asking
is because I'm using a transparent layer and I'm wondering if the
transparency hack could still be be turned off if I used a transparent layer
but with gif output.

Thanks again,
Corey

On 6/22/06, Christopher Schmidt <crschmidt at crschmidt.net> wrote:
>
> > Good to hear that.  I have come across two issues.  I've just submitted
> > tickets for both of them: #95 & #96.  The first one is that the
> MouseToolbar
> > buttons don't change state visibly when the user clicks on them although
> > they are otherwise functional.  The second one is a little more subtle
> (at
> > least if you're using layers that render quickly):  I've found that
> under
> > IE6 the map does not refresh until all the image tiles are loaded.  With
> a
> > slow map server this makes a huge difference to the perceived
> responsiveness
> > of the map.  I played with Google Maps for a while and it looks like
> they
> > have found some way to work around this.
>
> I fixed the former with r680. The latter we've implemented a workaround:
> the primary slowness that is causing this appears to be the IE alpha
> Transparency. Since many layers don't have/need transparency, we've made
> the images *not* be returned in an alpha-transparency hack div for the
> time being, *unless* a transparent: 'true' param is passed in the WMS
> request. (An example diff is in r684.) This is far from a perfect
> solution, but seems to make things speedier by default, and we'll keep
> this in mind as a performance problem moving forward, one which
> hopefully will be helped by #92, "Implement tile image/div reuse"
> (although I'm not making any promises yet ;)).
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://mailman-viper.python-hosting.com/pipermail/users/attachments/20060622/a0ca57b9/attachment-0001.html