[Tilecache] cells not being calculated correctly for bounding box

[Matt Bartolome]

On Thu, Feb 5, 2009 at 4:25 PM, Christopher Schmidt
<crschmidt at metacarta.com> wrote:
> On Thu, Feb 05, 2009 at 04:13:17PM -0800, Andrew Wooster wrote:
>> I'm not sure whether it'll help in your situation, but in the
>> TileCache/Layer.py, try changing:
>>
>>          x = int(round(x0))
>>          y = int(round(y0))
>> to:
>>          x = int(x0)
>>          y = int(y0)
>>
>> That fixed some bounding box issues in my configuration.[0]
>>
>> -Andrew
>>
>> [0] I sent in a patch awhile ago, but got no response. *shrug*
>
> Your patch went to me personally, and not to the list, so it wasn't in
> my tilecache inbox. Applied in r385.
>

Thanks Andrew and Chris. Turns out the bbox on my tilecache.cfg was
suspect but I think the patch may have fixed it anyway.

>>
>>
>> On Feb 5, 2009, at 3:13 PM, Matt Bartolome wrote:
>> > Hi,
>> > I'm trying to seed a cache with a specific bounding box. Most of my
>> > layers honor the extent and seed perfectly however with certain layers
>> > tilecache does not calculate the cells correctly and always returns
>> > 0,0 which causes tilecache_seed.py to try to seed the entire bbox of
>> > the layer intead of my specified one in tilecache_seed.py.
>> >
>> > Here are some tilecache.cfg examples and tilecache_seed.py commands
>> > I'm using. Does anybody know what can cause this issue?
>> >
>> > #These are a couple that are going nuts:
>> > ################################
>> >
>> > [62971931]
>> > layers = 62971931
>> > mapfile = mapnik-config/62971931.xml
>> > metatile = true
>> > srs = epsg:2230
>> > metabuffer = 5
>> > bbox = 6296999.495,1930999.505,6309000.495,1939000.505
>> > debug = false
>> > type = Mapnik
>> >
>> > $ tilecache_seed.py 62971931 10 11
>> > "6296999.495,1930999.505,6309000.495,1939000.505"
>> > ###### (0, 0, 10), (1024, 683, 10)
>> > 10 (000000, 000000) = (6296999.4950 1930999.5050 6297011.2147
>> > 1931011.2247) [0.0002s : 1250.005/s] 1/28085
>> >
>> > [62971923]
>> > layers = 62971923
>> > mapfile = mapnik-config/62971923.xml
>> > metatile = true
>> > srs = epsg:2230
>> > metabuffer = 5
>> > bbox = 6296999.495,1922999.505,6309000.495,1931000.505
>> > debug = false
>> > type = Mapnik
>> >
>> > $  tilecache_seed.py 62971923 10 11
>> > "6296999.495,1922999.505,6309000.495,1931000.505"
>> > ###### (0, 0, 10), (1024, 683, 10)
>> > 10 (000000, 000000) = (6296999.4950 1922999.5050 6297011.2147
>> > 1923011.2247) [0.0002s : 1838.454/s] 1/28085
>> >
>> > [62971939]
>> > layers = 62971939
>> > mapfile = mapnik-config/62971939.xml
>> > metatile = true
>> > srs = epsg:2230
>> > metabuffer = 5
>> > bbox = 6124093,1761898.25,6637898,2175848.75
>> > debug = false
>> > type = Mapnik
>> >
>> > #These are fine
>> > #############
>> >
>> > $ tilecache_seed.py 62971939 10 11
>> > "6296999.495,1938999.505,6309000.495,1947000.505"
>> > ###### (345, 353, 10), (369, 369, 10)
>> > 10 (000345, 000353) = (6297201.1299 1939020.4814 6297702.8926
>> > 1939522.2441) [0.0895s : 11.112/s] 1/20
>> >
>> > [62731995]
>> > layers = 62731995
>> > mapfile = mapnik-config/62731995.xml
>> > metatile = true
>> > srs = epsg:2230
>> > metabuffer = 5
>> > bbox = 6124093,1761898.25,6637898,2175848.75
>> > debug = false
>> > type = Mapnik
>> >
>> > $ tilecache_seed.py 62731995 10 11
>> > "6272999.495,1994999.505,6285000.495,2003000.505"
>> > ###### (297, 465, 10), (321, 481, 10)
>> > 10 (000297, 000465) = (6273116.5205 1995217.9033 6273618.2832
>> > 1995719.6660) [0.0486s : 20.352/s] 1/20
>> > _______________________________________________
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>>
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>
> --
> Christopher Schmidt
> MetaCarta
>