[Tilecache] Pregenerated tiles

Guillaume Sueur guillaume.sueur at neogeo-online.net
Thu Nov 6 03:43:41 EST 2008


ok, then it's the amount of memory used by the operation which is too
high for your system. Consider decreasing the metatile size or use
metatile false

Guillaume

Alexandre Dube a écrit :
> Hi Guillaume,
> 
>  It was already set to :
>   MAXSIZE 4096
> 
>  Is it to ok ?
> 
> Alexandre
> 
> Guillaume Sueur wrote:
>> Hi Alexandre,
>>
>> I think your MAXSIZE is too short in your mapfile (main MAP section)
>> It should allow images up to 1300 x 1300 to be drawn.
>> Try to set it to 1500
>>
>> Regards,
>>
>> Guillaume
>>
>> Alexandre Dube a écrit :
>>  
>>> Hi Guillaume,
>>>
>>>  I get the following after around 30 seconds of running :
>>> ...
>>> ...
>>> Cache miss: 196426.56206,5380743.03968,196878.117371,5381194.59499,
>>> Tile: x: 15, y: 15, z: 4, time: 1.48284912109
>>> 04 (000015, 000015) = (196426.5621 5380743.0397 196878.1174
>>> 5381194.5950) [1.4831s : 4.280/s] 61/247
>>> Traceback (most recent call last):
>>>  File "./tilecache_seed.py", line 9, in <module>
>>>    TileCache.Client.main()
>>>  File "/home/mapgears/tilecache/TileCache/Client.py", line 108, in main
>>>    seed(svc, base, layer, map(int, sys.argv[3:5]), map(float,
>>> sys.argv[5].split(",")))
>>>  File "/home/mapgears/tilecache/TileCache/Client.py", line 92, in seed
>>>    svc.renderTile(tile)
>>>  File "/home/mapgears/tilecache/TileCache/Service.py", line 138, in
>>> renderTile
>>>    data = layer.render(tile)
>>>  File "/home/mapgears/tilecache/TileCache/Layer.py", line 429, in render
>>>    image = self.renderMetaTile(metatile, tile)
>>>  File "/home/mapgears/tilecache/TileCache/Layer.py", line 391, in
>>> renderMetaTile
>>>    data = self.renderTile(metatile)
>>>  File "/home/mapgears/tilecache/TileCache/Layers/MapServer.py", line 51,
>>> in renderTile
>>>    mapImage = wms.draw()
>>>  File "/home/mapgears/fgs-5.2.0/www/lib/python2.5/mapscript.py", line
>>> 1363, in draw
>>>    def draw(*args): return _mapscript.mapObj_draw(*args)
>>> _mapscript.MapServerError: msDrawMap(): Image handling error. Failed to
>>> draw layer named 'mos'.
>>> msDrawRasterLayerGDAL(): Memory allocation error. Allocating work image
>>> of size 1300x1300 failed.
>>>
>>>  Do you know what can cause this ?  I use metaTile=true with default
>>> settings.
>>>
>>>  Thanks a lot for your help,
>>>
>>> Alexandre
>>>
>>> Guillaume Sueur wrote:
>>>    
>>>> cache miss is the normal message for non-existing tiles.
>>>>
>>>>
>>>> Alexandre Dube a écrit :
>>>>  
>>>>      
>>>>> I see,
>>>>>
>>>>>  I've got a lot of "cache miss" message and finally a  "Memory
>>>>> allocation error".  I'll try to find out why.
>>>>>
>>>>> Thanks for the tip,
>>>>>
>>>>> Alexandre
>>>>>
>>>>> Guillaume Sueur wrote:
>>>>>           
>>>>>> that's what tilecache_seed.py does.
>>>>>>
>>>>>> See http://tilecache.org/readme.html#seeding-your-tilecache
>>>>>>
>>>>>> Guillaume
>>>>>>
>>>>>> Alexandre Dube a écrit :
>>>>>>  
>>>>>>               
>>>>>>> Hi Guillaume,
>>>>>>>
>>>>>>> I don't know what tileseed.py is.  What I would like to do is
>>>>>>> generate
>>>>>>> all tiles for all resolutions of my raster layer in tilecache.  Is
>>>>>>> there
>>>>>>> a way to do this ?
>>>>>>>
>>>>>>> Many thanks,
>>>>>>>
>>>>>>> Alexandre
>>>>>>>
>>>>>>> Guillaume Sueur wrote:
>>>>>>>                      
>>>>>>>> you mean the tileseed.py stuff ?
>>>>>>>>
>>>>>>>> Alexandre Dube a écrit :
>>>>>>>>  
>>>>>>>>                            
>>>>>>>>> Hi list,
>>>>>>>>>
>>>>>>>>>   Is there a way, using command line, to pre-generate all tiles
>>>>>>>>> of a
>>>>>>>>> layer in tilecache.cfg file ( with its resolutions and extent ) ?
>>>>>>>>>
>>>>>>>>>                                         
>>>>>>>>                                 
>>>>>>>                         
>>>>>             
>>>>         
>>>     
>>
>>   
> 
> 




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