<br><br><div class="gmail_quote">On Mon, Aug 8, 2011 at 13:25, Andreas Hocevar <span dir="ltr"><<a href="mailto:ahocevar@opengeo.org">ahocevar@opengeo.org</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">
<div class="im">On Aug 8, 2011, at 12:45 , Julien Cigar wrote:<br>
<br>
> Hi,<br>
><br>
> Normally the only thing to do is to use an "SRS" parameter, something like:<br>
<br>
</div>This is a common pitfall when using OpenLayers. The SRS parameter will be ignored. Always. Instead, WMS layers will be requested in the SRS used by your base layer.<br></blockquote><div><br></div><div>Thanks, I see, and it makes perfectly sense when the WMS layer is an overlay. But this also goes when the WMS layer has isBaseLayer: true?</div>
<div> </div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">
<br>
Andreas.<br>
<div><div></div><div class="h5"><br>
><br>
> var layer = new OpenLayers.Layer.WMS(<br>
> 'YOUR_LAYER_NAME', "<a href="http://YOUR_WMS_SERVER" target="_blank">http://YOUR_WMS_SERVER</a>', {<br>
> layers: 'YOUR_LAYER',<br>
> transparent: true,<br>
> format: 'image/png',<br>
> SRS: 'EPSG:3857',<br>
> SLD: '<a href="http://YOUR_SLD_ADDRESS" target="_blank">http://YOUR_SLD_ADDRESS</a>'<br>
> }, {<br>
> isBaseLayer: false,<br>
> singleTile: true,<br>
> opacity: 0.8,<br>
> visibility: false<br>
> }<br>
> )<br>
><br>
> I don't know which WMS server you use, but if it's Mapserver don't forget to add the supported projections in the WEB METADATA section, something like "wms_srs" "EPSG:4326 EPSG:3857", otherwise it will not work.<br>
><br>
> For example:<br>
> WEB<br>
> IMAGEPATH "/tmp/"<br>
> IMAGEURL "/tmp/"<br>
><br>
> METADATA<br>
> "ows_enable_request" "*"<br>
><br>
> #######<br>
> # WMS #<br>
> #######<br>
><br>
> "wms_title" "my WMS server"<br>
> "wms_onlineresource" "<a href="http://my/wms/address?map=/path/to/mapfile.map&" target="_blank">http://my/wms/address?map=/path/to/mapfile.map&</a>"<br>
> "wms_srs" "EPSG:4326 EPSG:3857"<br>
> END<br>
> END<br>
><br>
> Julien<br>
><br>
> On 08/08/2011 12:26, Jan Henrik Øverland wrote:<br>
>> How do I request a specific SRS when creating a wms layer?<br>
>><br>
>><br>
>> On Fri, Aug 5, 2011 at 14:22, Jan Henrik Øverland<br>
>> <<a href="mailto:janhenrik.overland@gmail.com">janhenrik.overland@gmail.com</a> <mailto:<a href="mailto:janhenrik.overland@gmail.com">janhenrik.overland@gmail.com</a>>> wrote:<br>
>><br>
>> Hi, my map is EPSG:900913 and running Google Maps nicely. The<br>
>> following WMS feed is served both as EPSG:4326 and EPSG:900913 (have<br>
>> a look at the WMS link in the table):<br>
>><br>
>> <a href="http://iridl.ldeo.columbia.edu/SOURCES/.USGS/.LandDAAC/.MODIS/.1km/.8day/.version_005/.Aqua/.EAF/.Night/.LST/X+Y+fig-+colors+coasts+-fig+//LST/255./330./plotrange//T/3118./plotvalue/Y/1.5405659E-04/39.99557/plotrange//plotborder+72+psdef//plotaxislength+432+psdef//XOVY+null+psdef/" target="_blank">http://iridl.ldeo.columbia.edu/SOURCES/.USGS/.LandDAAC/.MODIS/.1km/.8day/.version_005/.Aqua/.EAF/.Night/.LST/X+Y+fig-+colors+coasts+-fig+//LST/255./330./plotrange//T/3118./plotvalue/Y/1.5405659E-04/39.99557/plotrange//plotborder+72+psdef//plotaxislength+432+psdef//XOVY+null+psdef/</a><br>
>><br>
>> When I do this:<br>
>><br>
>> var wms = new OpenLayers.Layer.WMS(<br>
>> "IRI",<br>
>> "<a href="http://iridl.ldeo.columbia.edu/SOURCES/.USGS/.LandDAAC/.MODIS/.1km/.8day/.version_005/.Aqua/.EAF/.Night/.LST/X+Y+fig-+colors+coasts+-fig+//LST/255./330./plotrange//T/3118./plotvalue/Y/1.5405659E-04/39.99557/plotrange//plotborder+72+psdef//plotaxislength+432+psdef//XOVY+null+psdef/wms.xml" target="_blank">http://iridl.ldeo.columbia.edu/SOURCES/.USGS/.LandDAAC/.MODIS/.1km/.8day/.version_005/.Aqua/.EAF/.Night/.LST/X+Y+fig-+colors+coasts+-fig+//LST/255./330./plotrange//T/3118./plotvalue/Y/1.5405659E-04/39.99557/plotrange//plotborder+72+psdef//plotaxislength+432+psdef//XOVY+null+psdef/wms.xml</a>",<br>
>> {<br>
>> layers: "USGS LandDAAC MODIS 1km 8day version_005 Aqua EAF<br>
>> Night LST",<br>
>> }<br>
>> );<br>
>><br>
>> ..I get a 4326 base layer. But I want it to work with my 900913 map<br>
>> so I add to the params object:<br>
>><br>
>> {<br>
>> layers: "USGS LandDAAC MODIS 1km 8day version_005 Aqua EAF<br>
>> Night LST",<br>
>> srs: "EPSG:900913",<br>
>> bbox: "-2000000,1,6900000,4400000"<br>
>> }<br>
>><br>
>> but it does not work. The getFullRequestString() returns a string<br>
>> with the correct BBOX, but the SRS it still 4326.<br>
>><br>
>> To me it looks like only the first tile has 900913 and the rest<br>
>> (twenty-something) have 4326. What am I doing wrong?<br>
>><br>
>> Jan<br>
>><br>
>><br>
>><br>
>><br>
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><br>
><br>
> --<br>
> No trees were killed in the creation of this message.<br>
> However, many electrons were terribly inconvenienced.<br>
</div></div>> <jcigar.vcf>_______________________________________________<br>
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<br>
--<br>
</div><font color="#888888">Andreas Hocevar<br>
OpenGeo - <a href="http://opengeo.org/" target="_blank">http://opengeo.org/</a><br>
Expert service straight from the developers.<br>
</font><div><div></div><div class="h5"><br>
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