hey guys - the problem is, 10+ second load time for building the map
is never going to make anyone happy
it seems like the method of having the maps summarize points is not
really a high performance solution in
the end. is there a way to ajax load the secondary point data so that
the map build is super fast?

for an example of what i mean by "high performance" this map we built
(with tiling, not points)
loads hundreds of thousands of points in 3-4 seconds 
http://fundrace.huffingtonpost.com/

know what i  mean?

avaaz is fighting a similar problem here: http://www.avaaz.org/en/sept21_hosts/

its ok because the rest of th epage loads quickly, but its not relaly
that ok to have a 15+ second load time


On Aug 30, 5:00 pm, richard <[email protected]> wrote:
> On Jul 23, 3:24 pm, Mike Williams <[email protected]> wrote:
>
>
>
>
>
> > It looks like you're preloading the infowindow contents before creating
> > themap. Your infowindows contain huge images which are then scaled
> > down. E.g.
>
> >    http://www.sundialsociety.org.uk/images/Kent/S3009.jpg
>
> > is 685kb. Themapdoesn't get loaded until the "onload" event triggers,
> > which occurs after all those 15 large images have been fetched.
>
> > You endupdisplaying the image at 300x225 pixels, so you could save a
> > lot of time by creating images of that size rather than 1648x2331. On a
> > slow connection that could take quite a while.
>
> > Skipping the preloading of the infowindow contents would also allow the
> >mapto display earlier in the proceedings. The downside would be that
> > there would be the normal slight delay the first time each infowindow is
> > opened as the image gets fetched, rather than the current instantaneous
> > photo display.
>
> > The underlay trick should work as long as yourmapdiv with underlay
> > appears before you start preloading the infowindow contents, which
> > appears to be the way you've got it configured. I don't know why that
> > wouldn't work unless you repositioned yourmapdiv at the same tile that
> > you added the underlay image.
>
> > --
> > Mike Williamshttp://econym.org.uk/gmap
>
> Many thanks for that Mike.  I changed the width to 400 (as per the
> other images in the site) and the reportedloadingtime went down from
> 60-90 seconds to about 20 seconds.  We are likely to haveupto 20
> sundials in one location (e.g. mass dials scratched on church walls)
> in the longer term, so populating the info windows at the time they
> open is probably the way to go for the future.

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