Re: [OpenLayers-Dev] how to calculate BBOX for tiles

[Kevin Kempfer]

Hi!


Is this possible?

Thanks for any hints,

Kevin

Kevin Kempfer schrieb:

to make it more clear, I do have a BBOX of a feature and I want to have the URLs for map tiles in that area.

Hi List!


http://n2.nabble.com/locating-bad-tiles...-td1836476.html





Here is what should happen:

- I have the BBOX of the part of the map that should be regenerated
- calculate the corresponding tiles in all zoom levels


Thanks for any hints - or even better approaches.

Kevin




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I am trying to selectivly delete tiles from TileCache for specific BBOXes in order to regenerate parts of the map. I am using this script which Tim posted two years ago: Supplying the URL which OpenLayers generates for a specific tile refreshes this tile in the TileCache. So I need to know how OpenLayers calculates the BBOXes for the tiles to be requested. Can someone point me to this piece of code? - pass these tiles' BBOX to Tim's script that regenerates the matching tiles in the TileCache P.S.: CC to the tilecache list, maybe someone there has a better method for deleting parts of the tilecache?!

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