~2000 Placemark Placement Effeciency

[gane]

Currently my project calls for reading longitude/latitude coords from
an xml file and simply plotting them on the map. It seems to take 5
seconds to plot around 40 points.... Whats the best way to go about
this for max performance (note: Reading 2000 points and plotting 2000
placemarks all at once. All will be shown.)

[Roman N]

Hi gane,

The absolute fastest way is to create a web service that generates KML
and then use fetchKml or KmlNetworkLink to plot it in Google Earth.

The slowdown you've been seeing is probably due to a known bug where
API calls perform poorly on Windows. The current, hacky, workaround is
to wrap those API calls (such as createPlacemark) in a dummy call to
fetchKml:

google.earth.fetchKml(ge, '', function() {
// do batch calls here
for (var i = 0; i < 2000; i++)
...createPlacemark here...
});

This effectively tells the plugin to stop what it's doing until the
inner function completes. A true fix for the slowdown is in the works.
Also note that on Mac, this problem shouldn't exist.

Regardless, I'd recommend the first (web service generating KML)
approach.

Thanks,
Roman

[gane]

Hmmm, well thanks for your reply although I'm a little confused. Is
there an example page you can link to see I can see the performance
difference and implementation? Thanks for your time Roman!

> > placemarks all at once. All will be shown.)- Hide quoted text -
>
> - Show quoted text -

[gane]

Oh, I forgot to mention. These markers must be viewable in google maps
too... It's a hybrid page with all map types available. I'm not sure
if using the fetchkml will show up in map view?

On Jul 6, 1:47 pm, Roman N wrote: