[OpenLayers-Trac] Re: [OpenLayers] #2964: Error in Layer.Zoomify when width or height is evenly divisible by 256

[OpenLayers]

#2964: Error in Layer.Zoomify when width or height is evenly divisible by 256
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 Reporter:  alpage   |       Owner:  euzuro      
     Type:  bug      |      Status:  new         
 Priority:  major    |   Milestone:  2.12 Release
Component:  Layer    |     Version:  2.11        
 Keywords:  zoomify  |       State:  Review      
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Comment(by alpage):

 The zoomify pyramid normally stops when both width and height reach a tile
 size that is <= standardTileSize. If you had a very unusual image with
 aspect ratio e.g. 512:1 or more you could reach a point where one
 dimension is zero and the other is still > standardTileSize. The tier size
 in tiles in that dimension reaches zero and the image is effectively
 undisplayable. Yes, such an absurd image could exist and I suppose you
 should allow for it, though I'm not going to lose sleep over it as I will
 never encounter such an image in my line of work. The main bug can appear
 with any image where either dimension is evenly divisible by
 standardTileSize and is much more common.

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Ticket URL: <http://trac.openlayers.org/ticket/2964#comment:7>
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