I am currently using OpenLayers 2.5 with kamap1.0 as my backend, trying to speed this thing up a little bit. I know getting rid of kamap and replacing it with something else would probably help a lot, but im trying to optimize openlayers before i dive into that. Right now, the main problem i can see that openlayers is having and is giving the appearance of poor speed, is that it is loading tiles off the screen before loading tiles on the screen. I would like to change this functionality. I'm not afraid to get my hands dirty with code, so if anyone has any suggestions about a way to change this, i'm open to suggestions.
One thing i was considering, ive been looking at the code, and it appears that it loads the tiles from left to right. One thing ive considered is loading htem in a spiral fashion, starting with the center of the map. This would give the appearnce of speed, by loading the tiles on the screen first, then continuing to load off-screen tiles in the backgroudn to prepare for panning. It seems the place to make this change is in initGriddedTiles(), but im not 100% sure and i dont wanna f*** things up too bad without getting some advice/opinions from the openlayers experts. So, any ideas how to make the initial tiles grabbed by openlayers to be the ones on the screen, as opposed to ones off the screen?
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