Hi Robert,
Comparing that to my own gridset, it's pretty much identical. The only two
differences are:
You have an extra zoom-out level (1:20million?), and your bounding box has
probably been automatically generated.
Mine is here:
<gridSets>
<gridSet>
<name>UK_OSGB</name>
<srs>
<number>27700</number>
</srs>
<extent>
<coords>
<double>0.0</double>
<double>0.0</double>
<double>700000.0</double>
<double>1300000.0</double>
</coords>
</extent>
<alignTopLeft>false</alignTopLeft>
<resolutions>
<double>2800.0</double>
<double>1400.0</double>
<double>700.0</double>
<double>350.0</double>
<double>175.0</double>
<double>84.0</double>
<double>42.0</double>
<double>21.0</double>
<double>11.2</double>
<double>5.6</double>
<double>2.8</double>
<double>1.4</double>
<double>0.7</double>
<double>0.35</double>
<double>0.14</double>
<double>0.07</double>
</resolutions>
<metersPerUnit>1.0</metersPerUnit>
<pixelSize>2.8E-4</pixelSize>
<scaleNames>
<string>UK_OSGB:0</string>
<string>UK_OSGB:1</string>
<string>UK_OSGB:2</string>
<string>UK_OSGB:3</string>
<string>UK_OSGB:4</string>
<string>UK_OSGB:5</string>
<string>UK_OSGB:6</string>
<string>UK_OSGB:7</string>
<string>UK_OSGB:8</string>
<string>UK_OSGB:9</string>
<string>UK_OSGB:10</string>
<string>UK_OSGB:11</string>
<string>UK_OSGB:12</string>
<string>UK_OSGB:13</string>
<string>UK_OSGB:14</string>
<string>UK_OSGB:15</string>
</scaleNames>
<tileHeight>256</tileHeight>
<tileWidth>256</tileWidth>
<yCoordinateFirst>false</yCoordinateFirst>
</gridSet>
So there's probably nothing wrong with your gridset (mine works fine at
least).
It certainly appears from your error that your application is using a
different gridset (mine was doing similar things when they weren't
identical).
My javaScript declaration (not leaflet):
resolutions:
[2800,1400,700,350,175,84,42,21,11.2,5.6,2.8,1.4,0.7,0.35,0.14,0.07],
Maybe leaflet is doing something it shouldn't be?
Regards,
Jonathan
Jonathan Moules
GIS Analyst Programmer,
Corporate GIS,
Warwickshire County Council
Tel: +44 (0)1926 412588, (Internal: 2588)
On 8 November 2013 15:20, Langford, Robert
<[email protected]>wrote:
> All,
>
>
>
> I’m having problems with GeoWebCache, I have a Leaflet.js web mapping site
> using Proj4Leaflet which consumes 2 WMS feeds from Geoserver (2.3.3), both
> are Layer Groups (one base mapping the other is data) and everything
> displays fine when I’m not using GWC.
>
>
>
> When I enable caching on the base mapping Layer Group I get two different
> results at different zoom levels:
>
> 1. At zoom levels 5, 6, 8 & 9: I get “geowebcache-cache-result: HIT”.
> However the images are misaligned/offset to the non-cached layers
>
> 2. At zoom levels 7, 10, 11, 12, 13 & 14: I get
> “geowebcache-cache-result:
> MISS” and “geowebcache-miss-reason: request does not align to grid(s)
> 'Ordnance_Survey_National_Grid'”. Because the cache isn’t used the
> layers align correctly
>
>
>
> I have created a custom Gridset for this and it is British National Grid,
> EPSG:27700 (full specification at the foot of the email).
>
>
>
> I’m really confused as the resolutions that I’ve defined in my web app
> exactly match the Gridset below and I can’t work out if I’ve got a problem
> with the Gridset or something in the Leaflet code.
>
>
>
> If anyone could shed any light on this matter or point me in the right
> direction to troubleshoot it I’d greatly appreciate it. Please let me know
> if any further information is required.
>
>
>
> Kind regards,
>
>
>
> Rob
>
>
>
>
>
>
>
> <gridSet>
>
> <name>*Ordnance_Survey_National_Grid*</name>
>
> <srs>
>
> <number>*27700*</number>
>
> </srs>
>
> <extent>
>
> <coords>
>
> <double>*1346.748175220855*</double>
>
> <double>*7097.996956234318*</double>
>
> <double>*671066.5126380573*</double>
>
> <double>*1230202.1293903186*</double>
>
> </coords>
>
> </extent>
>
> <alignTopLeft>*false*</alignTopLeft>
>
> <resolutions>
>
> <double>*5600.0*</double>
>
> <double>*2800.0*</double>
>
> <double>*1400.0*</double>
>
> <double>*700.0*</double>
>
> <double>*350.0*</double>
>
> <double>*175.0*</double>
>
> <double>*84.0*</double>
>
> <double>*42.0*</double>
>
> <double>*21.0*</double>
>
> <double>*11.2*</double>
>
> <double>*5.6*</double>
>
> <double>*2.8*</double>
>
> <double>*1.4*</double>
>
> <double>*0.7*</double>
>
> <double>*0.35*</double>
>
> <double>*0.14*</double>
>
> <double>*0.07*</double>
>
> </resolutions>
>
> <metersPerUnit>*1.0*</metersPerUnit>
>
> <pixelSize>*2.8E-4*</pixelSize>
>
> <scaleNames>
>
> <string>*Ordnance Survey National Grid:0*</string>
>
> <string>*Ordnance Survey National Grid:1*</string>
>
> <string>*Ordnance Survey National Grid:2*</string>
>
> <string>*Ordnance Survey National Grid:3*</string>
>
> <string>*Ordnance Survey National Grid:4*</string>
>
> <string>*Ordnance Survey National Grid:5*</string>
>
> <string>*Ordnance Survey National Grid:6*</string>
>
> <string>*Ordnance Survey National Grid:7*</string>
>
> <string>*Ordnance Survey National Grid:8*</string>
>
> <string>*Ordnance Survey National Grid:9*</string>
>
> <string>*Ordnance Survey National Grid:10*</string>
>
> <string>*Ordnance Survey National Grid:11*</string>
>
> <string>*Ordnance Survey National Grid:12*</string>
>
> <string>*Ordnance Survey National Grid:13*</string>
>
> <string>*Ordnance Survey National Grid:14*</string>
>
> <string>*Ordnance Survey National Grid:15*</string>
>
> <string>*Ordnance Survey National Grid:16*</string>
>
> </scaleNames>
>
> <tileHeight>*256*</tileHeight>
>
> <tileWidth>*256*</tileWidth>
>
> <yCoordinateFirst>*false*</yCoordinateFirst>
>
> </gridSet>
>
>
>
>
>
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