[OpenLayers-Dev] blank, not missing tiles
dejung.gewissler at oit.state.nj.us
Tue Dec 2 17:28:53 EST 2008
First I'd like to say thanks to all that have made OpenLayers so great!
Our sites would not be very exciting without it.
We are about to role out to production our data download site  that
is experiencing peculiar behavior when zooming to an extent. We have
experienced it on several machines that have tested the site so far, so
I know it is not just my brain playing tricks on me.
Here are a few addresses that you can search (either click 'search' or
100 Cass St, Trenton
58 Montague Ave, Ewing
5 Smith St, Howell
After that try searching by Municipality a couple of times (arrow up or
down to select the town and then click 'search'). Try doing several
searches relatively quickly in succession. The problem is that sometimes
a tile will not display even though firebug shows it is downloaded (if I
inspect the element), just white appears where the tile should be, not
broken image links, etc. If I zoom in or out then the tiles are shown. I
have not found a pattern to recreate the problem, but it definitely will
occur if you search enough and maybe pan/zoom with your mouse.
The two map functions are setCenter() for the marker and zoomToExtent()
for the rest.
The cache is an arcgis server cache. I am not using any esri web
services, servlets, etc. The tiles are in a static folder that I access.
The dynamic data comes from geoserver.
I have a feeling that it is somehow related to extjs events and
openlayers not getting along? Has anyone experienced anything like this
before? Any tips on where to start looking for a solution would be great.
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