Hi,
I do not know Leaflet and if and how it supports WMS-C specification. Perhaps it does not and it would be better to use WMTS which is probably used through https://github.com/mylen/leaflet.TileLayer.WMTS. By reading http://leafletjs.com/ Leaflet does not seem to have mailing list or forum but they have outsourced the support to gis.stackexchange. I wish you good luck there.
-Jukka-
Volkan Gümüs wrote:
Hello!
Thanks for you detailed answer!
I'm using leaflet.
Am 07.04.2016 um 00:02 schrieb Rahkonen Jukka (MML):
Hi,
WMS-C works only if the BBOX of the GetMap request hits (almost) exactly the tile boundaries of the corresponding gridset.
I took on example GetMap from the States layer GWC preview. This is a
valid request for EPSG:4326 gridsethttp://localhost:8080/geoserver/gwc/service/wms?LAYERS=topp%3Astates&F
ORMAT=image%2Fpng&SERVICE=WMS&VERSION=1.1.1&REQUEST=GetMap&STYLES=&SRS
=EPSG%3A4326&BBOX=-112.5,33.75,-101.25,45&WIDTH=256&HEIGHT=256Analyze the bbox BBOX=-112.5,33.75,-101.25,45 a bit width=
-101.25-(-112.5)=11,25 degrees
height=45-33.75=11.25 degreesThus the tile is square with resolution (11.25/256)= 0.0439453125 degrees/pixel. Compare it with the setting page for gridset EPSG:4326 and you'll see that it is the resolution of zoom level 4.
Now to the request that you pasted. It has a bounding box
bbox:11.25,54.16243396806781,14.0625,55.7765730186677
width= 14.0625-11,25=2.8125 degrees
height=55.7765730186677-54.16243396806781=1.61413905059989 degreesDifferent resolutions alone proof that this GetMap request can't hit exactly any tile in the EPSG:4326 gridsets. The error message tries to tell that:
" geowebcache-miss-reason:request does not align to grid(s) 'EPSG:4326'"The reason for the error is that the client does not create valid WMS-C requests. Which client are you using?
-Jukka Rahkonen-
-----Alkuperäinen viesti-----
Lähettäjä: Volkan Gümüs [mailto:hallo@anonymised.com]
Lähetetty: 6. huhtikuuta 2016 23:53
Vastaanottaja: geoserver-users@lists.sourceforge.net
Aihe: [Geoserver-users] Tile Errors | Tile Caching Errors EPSG:4326Hey all!
Whenever I use tile caching (inbuild) with EPSG:4326 layers, I get weird results.
see this picture: https://paste.xinu.at/OXTrLL/
As soon as I disable tile caching OR change to EPSG:900913, it's
working like a charm.I get a miss-reason for the broken tiles:
geowebcache-miss-reason:request does not align to grid(s) 'EPSG:4326'
'4326:512Grid'Request params:
service:WMS
request:GetMap
layers:X:XXX
format:image/jpeg
transparent:false
version:1.1.0
tiled:true
height:256
width:256
srs:EPSG:4326
bbox:11.25,54.16243396806781,14.0625,55.7765730186677256x256 EPSG:4326 Grid is enabled and works fine for non-broken tiles.
Any ideas?!
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Beste Grüße
Volkan Gümüs
F1-Computer.de
Tel: 0231 223 985 60
Fax: 0231 330 295 08
Mail: hallo@anonymised.com