Tiles are downloaded unnecessarily when dragging #113
Comments
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Author: erik[at]tiq.com This is a real problem, the applet gets really swamped of downloading tiles when you drag around. If I open up a second applet it will be able to load all its tiles before the one that was being dragged has started downloading the currently visible tiles. |
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Author: thomas[at]walraet.com Javascript viewer has exactly the same problem. |
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Author: crschmidt[at]crschmidt.net Is this also the case in the new OpenLayers viewer? |
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Author: writetodan[at]yahoo.com This is due to some fairly fundamental code problems (Tile.removeUnusedTiles logic, threading problems, single-threaded tile download, re-draw request swamping). I've implemented some fixes locally but am still testing before upload (good news is it seems several times faster and more responsive). |
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Author: writetodan[at]yahoo.com fix deployed to www |
Reporter: erik[at]tiq.com
[Submitted to the original trac issue database at 10.55pm, Wednesday, 28th December 2005]
By downloaded I mean, that this shows up in the java console:
Trying to download image http://www.openstreetmap.org/tile/0.1/wms?map=......
adding image 1538,14391
When using the drag function it seems like the applet is downloading lots of unnecessary tiles. Tiles are downloaded even though I'm not watching that place anymore. It seems like it is downloading every tile to touch my view screen, so even though I've moved past it it is still downloaded.
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