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<p style="margin-top:0;margin-bottom:0">Hi Jonathan,</p>
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<p style="margin-top:0;margin-bottom:0">Thanks for pointing me to the Demo MapServer. That instance works as expected without the WIDTH and HEIGHT params. We're seeing the erroneous behaviour on both a MapServer 7.0.4 and a MapServer 7.0.7 instance. Don't see
anything in the release notes / changelogs that would indicate changes to that part of the code either...</p>
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<p style="margin-top:0;margin-bottom:0">Tried <a href="http://demo.mapserver.org/cgi-bin/wms?SERVICE=WMS&VERSION=1.3.0&REQUEST=DescribeLayer&layers=country_bounds&SLD_version=1.1.0" class="OWAAutoLink" id="LPlnk512771" previewremoved="true">
http://demo.mapserver.org/cgi-bin/wms?SERVICE=WMS&VERSION=1.3.0&REQUEST=DescribeLayer&layers=country_bounds&SLD_version=1.1.0</a> as well just to see whether vector or raster makes a difference, but the Demo MapServer behaves alright.</p>
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<div>From <a href="https://github.com/mapserver/mapserver/issues/1157" class="OWAAutoLink" id="LPlnk893967" previewremoved="true">
https://github.com/mapserver/mapserver/issues/1157</a> I learned that I should be adding
<span>the "ows_onlineresource" keyword to the metadata section. Will report back if that resolves the issue...</span></div>
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<div><span>Cheers,</span></div>
<div><span><br>
</span></div>
<div><span>Edward</span><br>
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<div id="divRplyFwdMsg" dir="ltr"><font style="font-size:11pt" face="Calibri, sans-serif" color="#000000"><b>From:</b> mapserver-users <mapserver-users-bounces@lists.osgeo.org> on behalf of Jonathan Moules <jonathan-lists@lightpear.com><br>
<b>Sent:</b> Monday, July 2, 2018 10:02 PM<br>
<b>To:</b> mapserver-users@lists.osgeo.org<br>
<b>Subject:</b> Re: [mapserver-users] WMS DescribeLayer: MapServer requires WIDTH and HEIGHT params?</font>
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<p>Hi Edward,</p>
<p><br>
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<p>They don't seem to be required on the Demo MapServer (which is <span style="color:rgb(35,110,37); font-family:monospace; font-size:13px; font-style:normal; font-variant:normal; font-weight:normal; letter-spacing:normal; line-height:normal; orphans:auto; text-align:start; text-indent:0px; text-transform:none; white-space:pre; widows:1; word-spacing:0px; display:inline!important; float:none">
MapServer version 7.0.6)</span>:</p>
<p><a class="x_moz-txt-link-freetext OWAAutoLink" href="http://demo.mapserver.org/cgi-bin/wms_landsat?request=DescribeLayer&service=WMS&version=1.3.0&sld_version=1.1.0&layers=WMS_raster" id="LPlnk298189" previewremoved="true">http://demo.mapserver.org/cgi-bin/wms_landsat?request=DescribeLayer&service=WMS&version=1.3.0&sld_version=1.1.0&layers=WMS_raster</a></p>
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<p>For SLD 1.1.0, looking at the spec, Table 1 and 2 both list the "Parameters in DescribeLayer operation request". The required ones (beyond the standard service/request/version) are:<br>
layers, sld_version</p>
<p>There are no others, either mandatory or optional.</p>
<p><br>
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<p>The SLD 1.0 spec is less clear about what's going on, but when I changed the sld_version=1.0.0, Mapserver excepted telling me only 1.1.0 is supported.<br>
</p>
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<p>Hope that helps in some way,</p>
<p>Cheers,</p>
<p>Jonathan<br>
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<div class="x_moz-cite-prefix">On 2018-07-02 16:35, Edward Mac Gillavry wrote:<br>
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<p style="margin-top:0; margin-bottom:0">Dear list,</p>
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<p style="margin-top:0; margin-bottom:0">We're currently investigating an error message we get from the WMS service
<font size="2"><span style="font-size:11pt">when we execute a DescribeLayer request. It appears MapServer requires WIDTH and HEIGHT parameters to be present:</span></font></p>
<p style="margin-top:0; margin-bottom:0"><font size="2"><span style="font-size:11pt"><br>
</span></font></p>
<p style="margin-top:0; margin-bottom:0"><font size="2"><span style="font-size:11pt"><a href="https://github.com/mapserver/mapserver/blob/branch-7-0/mapwms.c#L1705" class="x_OWAAutoLink" id="LPlnk214898" previewremoved="true">https://github.com/mapserver/mapserver/blob/branch-7-0/mapwms.c#L1705</a><a href="https://github.com/mapserver/mapserver/blob/branch-7-0/mapwms.c#L1705" class="x_OWAAutoLink" id="LPlnk214898" previewremoved="true"><br>
</a><br>
</span></font></p>
<p style="margin-top:0; margin-bottom:0"><font size="2"><span style="font-size:11pt">However, according to the SLD specs, these are NOT required:</span></font></p>
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</span></font></p>
<p style="margin-top:0; margin-bottom:0"><font size="2"><span style="font-size:11pt"><a href="http://portal.opengeospatial.org/files/?artifact_id=22364" class="x_OWAAutoLink" id="LPlnk236007" previewremoved="true">http://portal.opengeospatial.org/files/?artifact_id=22364</a><br>
</span></font></p>
<p style="margin-top:0; margin-bottom:0"><font size="2"><span style="font-size:11pt"><br>
</span></font></p>
<p style="margin-top:0; margin-bottom:0"><font size="2"><span style="font-size:11pt">Am I interpreting the code or SLD spec incorrectly? Or should I go ahead and remove these checks and provide a PR?</span></font></p>
<p style="margin-top:0; margin-bottom:0"><font size="2"><span style="font-size:11pt"><br>
</span></font></p>
<p style="margin-top:0; margin-bottom:0"><font size="2"><span style="font-size:11pt">Many thanks,</span></font></p>
<p style="margin-top:0; margin-bottom:0"><font size="2"><span style="font-size:11pt"><br>
</span></font></p>
<p style="margin-top:0; margin-bottom:0"><font size="2"><span style="font-size:11pt">Edward</span></font></p>
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