Ajax viewer hangs when zoomed in close

[jmanafi]

When opening the fusion learn template, zooming in real close causes Ajax viewer to hang. I cold-booted machine, server started automatically, launched learn template and tested zooming.

The map reloads in a split second normally, but when getting down to ~1:8, the viewer took minutes, and at ~1:4, the viewer would hang. The problem also occurred on a custom map, but at a higher zoom level.

I am using a Windows XP SP2, Apache bundled, php development environment, with MGOS 2.0.0 RC4

[jmanafi]

We began testing our data upgrading to MGOS 2.0 RC4 without using the fusion library, and we are noticing the same issues. The AGG renderer actually causes mgserver.exe to lock up at small zoom scales; today it happened at 1:254, whereas the GD renderer has yet to lock up, but it still takes a good period of time to update the map extents. Compared to MGOS 1.2 with the same dataset, both renderers perform worse when zoomed to a small scale, where, otherwise, they take only split seconds to update when zoomed far out.

[tomfukushima]

This will be resolved when ticket #458 is resolved.