[OpenLayers-Users] WMS layering onto OSM problems (some tiles show, others don't)

[Jefferson Heard]

Thanks!!!  That worked, plus adding a displayProjection parameter.  


On Jun 16, 2010, at 1:31 PM, <christopher.schmidt at nokia.com> <christopher.schmidt at nokia.com> wrote:

> 
> On Jun 16, 2010, at 1:26 PM, ext Jefferson Heard wrote:
> 
>> Well, the problem that I thought I had turns out not to be the case.  Yes, the requests are being made with the right projection.  No problems there.  
>> 
>> The problem is that the tiles aren't being layered in, or at least not all of them.  I start with a fully zoomed out, 256x256 single tile of all of OSM, and I can see the layering there.  The next zoom in as well.  The third zoom level, I get the data layered into the tile that includes the eastern seaboard, britain, and bits of western europe, and I only get that tile.  Zooming beyond that, none of the tiles show up.  
>> 
>> Using the GeoServer layer preview, reprojecting the bounding box, and asking for SRS EPSG:900913, I get all the tiles like I expect them.  I'm not sure what's different about the request I'm making in my application rather than in the GeoServer layer preview.  
> 
> 
> I bet you don't have a maxExtent on your map.
> 
> OL.Map("map", {
> maxExtent: new OpenLayers.Bounds(-20037508.34,-20037508.34,20037508.34,20037508.34)
> })
> 
> Should help.
> 
>> -- Jeff
>> 
>> 
>> 
>> On Jun 16, 2010, at 1:12 PM, Ian Turton wrote:
>> 
>>> On Wed, Jun 16, 2010 at 12:00 PM, Jefferson Heard
>>> <jefferson.r.heard at gmail.com> wrote:
>>>> Right, but GeoServer can; those servers can reproject my tiles for me, but I can't seem to figure out how to adjust the WMS request that OpenLayers is making.
>>> 
>>> If you set your map projection correctly then all the WMS requests
>>> will use that projection by default. No further intervention should be
>>> necessary on your part.
>>> 
>>> From your original mail though it isn't obvious which layers are on GeoServer?
>>> 
>>> Ian
>>> -- 
>>> Ian Turton
>> 
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> 
> Regards,
> -- 
> Christopher Schmidt
> Nokia
>