<div dir="ltr"><div class="gmail_default" style="font-family:comic sans ms,sans-serif">This might not be an approach that will get you exactly what you are looking for, but have you thought about using two different layers, one for queries and one for display, or maybe you are looking for some sort of cluster based results back? I don't have a lot of experience with CLUSTERs myself.</div><div class="gmail_default" style="font-family:comic sans ms,sans-serif"><br></div><div class="gmail_default" style="font-family:comic sans ms,sans-serif">bobb</div><div class="gmail_default" style="font-family:comic sans ms,sans-serif"><br></div><div class="gmail_default" style="font-family:comic sans ms,sans-serif"><br></div></div><br><div class="gmail_quote gmail_quote_container"><div dir="ltr" class="gmail_attr">On Fri, Feb 14, 2025 at 7:51 AM Guldberg, Erik via MapServer-users <<a href="mailto:mapserver-users@lists.osgeo.org">mapserver-users@lists.osgeo.org</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div class="msg-7072278450748283420">
<div lang="NO-NYN" style="overflow-wrap: break-word;">
<div class="m_-7072278450748283420WordSection1">
<p class="MsoNormal"><span lang="EN-US">Hi,<u></u><u></u></span></p>
<p class="MsoNormal"><span lang="EN-US">I have a WMS service, <a href="https://kart.ra.no/wms/brukerminner" target="_blank">
https://kart.ra.no/wms/brukerminner</a>, where I have problems getting correct getFeatureInfo results from a layer with CLUSTER content.<u></u><u></u></span></p>
<p class="MsoNormal"><span lang="EN-US"><u></u> <u></u></span></p>
<p class="MsoNormal"><span lang="EN-US">It contains the cluster layer and a regular point layer for the same data. The regular point layer is shown at 1:50 000.
<u></u><u></u></span></p>
<p class="MsoNormal"><span lang="EN-US"><u></u> <u></u></span></p>
<p class="MsoNormal"><span lang="EN-US">For single objects in both the cluster layer, I want to be able to use getFeatureInfo. This works, but the problem is that the results most of the time are wrong, and that they change for time to time, likely due to change
in zoom level. For the regular point layer, the result is always correct. I've also created a test cluster layer without the scale limit, and that also gives the correct result if I zoom in enough.
<u></u><u></u></span></p>
<p class="MsoNormal"><span lang="EN-US"><u></u> <u></u></span></p>
<p class="MsoNormal"><span lang="EN-US">All the symbols are placed correctly in the map, for all layers. I've used the database, and also this OGC API service (that uses the same data source as the WMS) as a reference:
<a href="https://api.ra.no/brukerminner" target="_blank">https://api.ra.no/brukerminner</a> <u></u>
<u></u></span></p>
<p class="MsoNormal"><span lang="EN-US"><u></u> <u></u></span></p>
<p class="MsoNormal"><span lang="EN-US">I'm using MapServer version 7.6.4. <u></u><u></u></span></p>
<p class="MsoNormal"><span lang="EN-US"><u></u> <u></u></span></p>
<p class="MsoNormal"><span lang="EN-US">Some example queries, using QGIS. <u></u><u></u></span></p>
<p class="MsoNormal"><span lang="EN-US">Wrong result. The object I get in the getfeatureinfo is 64 km away from where I clicked.<u></u><u></u></span></p>
<p class="MsoNormal"><span lang="NO-BOK"><a href="https://kart.ra.no/wms/brukerminner?language=nor&SERVICE=WMS&VERSION=1.3.0&REQUEST=GetFeatureInfo&BBOX=760392.02671199827454984%2C8263040.88853696268051863%2C1033357.36004533339291811%2C8407916.1385369636118412&CRS=EPSG%3A3857&WIDTH=1984&HEIGHT=1053&LAYERS=Brukerminner&STYLES=&FORMAT=image%2Fpng&QUERY_LAYERS=Brukerminner&INFO_FORMAT=text%2Fhtml&I=1069&J=616&FEATURE_COUNT=10" target="_blank"><span lang="EN-US">https://kart.ra.no/wms/brukerminner?language=nor&SERVICE=WMS&VERSION=1.3.0&REQUEST=GetFeatureInfo&BBOX=760392.02671199827454984%2C8263040.88853696268051863%2C1033357.36004533339291811%2C8407916.1385369636118412&CRS=EPSG%3A3857&WIDTH=1984&HEIGHT=1053&LAYERS=Brukerminner&STYLES=&FORMAT=image%2Fpng&QUERY_LAYERS=Brukerminner&INFO_FORMAT=text%2Fhtml&I=1069&J=616&FEATURE_COUNT=10</span></a></span><span lang="EN-US"><u></u><u></u></span></p>
<p class="MsoNormal"><span lang="EN-US"><u></u> <u></u></span></p>
<p class="MsoNormal"><span lang="EN-US">Zoomed in a bit more gives another, wrong result. This is 8.7 km away from where I clicked:<u></u><u></u></span></p>
<p class="MsoNormal"><span lang="NO-BOK"><a href="https://kart.ra.no/wms/brukerminner?language=nor&SERVICE=WMS&VERSION=1.3.0&REQUEST=GetFeatureInfo&BBOX=871972.11004533257801086%2C8307721.07603696547448635%2C940213.44337866583373398%2C8343939.88853696547448635&CRS=EPSG%3A3857&WIDTH=1984&HEIGHT=1053&LAYERS=Brukerminner&STYLES=&FORMAT=image%2Fpng&QUERY_LAYERS=Brukerminner&INFO_FORMAT=text%2Fhtml&I=1022&J=627&FEATURE_COUNT=10" target="_blank"><span lang="EN-US">https://kart.ra.no/wms/brukerminner?language=nor&SERVICE=WMS&VERSION=1.3.0&REQUEST=GetFeatureInfo&BBOX=871972.11004533257801086%2C8307721.07603696547448635%2C940213.44337866583373398%2C8343939.88853696547448635&CRS=EPSG%3A3857&WIDTH=1984&HEIGHT=1053&LAYERS=Brukerminner&STYLES=&FORMAT=image%2Fpng&QUERY_LAYERS=Brukerminner&INFO_FORMAT=text%2Fhtml&I=1022&J=627&FEATURE_COUNT=10</span></a><u></u><u></u></span></p>
<p class="MsoNormal"><span lang="NO-BOK"><u></u> <u></u></span></p>
<p class="MsoNormal"><span lang="EN-US">This is the Test-layer, how it looks now. I've tried different variations of PROCESSING settings.<u></u><u></u></span></p>
<p class="MsoNormal"><span lang="EN-US"><u></u> <u></u></span></p>
<p class="MsoNormal"><span lang="EN-US">LAYER<u></u><u></u></span></p>
<p class="MsoNormal"><span lang="EN-US"> NAME "TEST"<u></u><u></u></span></p>
<p class="MsoNormal"><span lang="EN-US"> DEBUG 5<u></u><u></u></span></p>
<p class="MsoNormal"><span lang="EN-US"> TYPE POINT<u></u><u></u></span></p>
<p class="MsoNormal"><span lang="EN-US"> STATUS ON<u></u><u></u></span></p>
<p class="MsoNormal"><span lang="EN-US"> TEMPLATE "../templates/brukerminner.html"<u></u><u></u></span></p>
<p class="MsoNormal"><span lang="EN-US"> HEADER "../templates/header.html"<u></u><u></u></span></p>
<p class="MsoNormal"><span lang="EN-US"> FOOTER "../templates/footer.html"<u></u><u></u></span></p>
<p class="MsoNormal"><span lang="EN-US"> TOLERANCEUNITS pixels<u></u><u></u></span></p>
<p class="MsoNormal"><span lang="EN-US"> TOLERANCE 25<u></u><u></u></span></p>
<p class="MsoNormal"><span lang="EN-US"> # MINSCALEDENOM 50000<u></u><u></u></span></p>
<p class="MsoNormal"><span lang="EN-US"> METADATA<u></u><u></u></span></p>
<p class="MsoNormal"><span lang="EN-US"> "wms_enable_request" "*"<u></u><u></u></span></p>
<p class="MsoNormal"><span lang="EN-US"> "wms_include_items" "tittel"<u></u><u></u></span></p>
<p class="MsoNormal"><span lang="EN-US"><u></u> <u></u></span></p>
<p class="MsoNormal"><span lang="EN-US"> "wms_title" "TEST"<u></u><u></u></span></p>
<p class="MsoNormal"><span lang="EN-US"> "wms_feature_info_mime_type" "text/html"<u></u><u></u></span></p>
<p class="MsoNormal"><span lang="EN-US"><u></u> <u></u></span></p>
<p class="MsoNormal"><span lang="EN-US">END <u></u><u></u></span></p>
<p class="MsoNormal"><span lang="EN-US">PROJECTION<u></u><u></u></span></p>
<p class="MsoNormal"><span lang="EN-US"> "init=epsg:4326"<u></u><u></u></span></p>
<p class="MsoNormal"><span lang="EN-US">END<u></u><u></u></span></p>
<p class="MsoNormal"><span lang="EN-US"><u></u> <u></u></span></p>
<p class="MsoNormal"><span lang="EN-US">EXTENT -19.76 54.57 45.57 82.67 #4326<u></u><u></u></span></p>
<p class="MsoNormal"><span lang="EN-US">PROCESSING "CLOSE_CONNECTION=DEFER"<u></u><u></u></span></p>
<p class="MsoNormal"><span lang="EN-US"><u></u> <u></u></span></p>
<p class="MsoNormal"><span lang="EN-US">CONNECTIONTYPE POSTGIS<u></u><u></u></span></p>
<p class="MsoNormal"><span lang="EN-US">CONNECTION "host=host dbname=db user=user password=password port=5432"<u></u><u></u></span></p>
<p class="MsoNormal"><span lang="EN-US">DATA "geom from xx.xx using unique id using srid=4326"<u></u><u></u></span></p>
<p class="MsoNormal"><span lang="EN-US"><u></u> <u></u></span></p>
<p class="MsoNormal"><span lang="EN-US"><u></u> <u></u></span></p>
<p class="MsoNormal"><span lang="EN-US">LABELITEM "Cluster_FeatureCount"<u></u><u></u></span></p>
<p class="MsoNormal"><span lang="EN-US"><u></u> <u></u></span></p>
<p class="MsoNormal"><span lang="EN-US"># PROCESSING "CLUSTER_ALGORITHM=SIMPLE"<u></u><u></u></span></p>
<p class="MsoNormal"><span lang="EN-US">PROCESSING "CLUSTER_GET_ALL_SHAPES=ON"<u></u><u></u></span></p>
<p class="MsoNormal"><span lang="EN-US">PROCESSING "ITEMS=tittel,beskrivelse,fylke,kommune,opprettet,endret,opprettet_av,linkkulturminnesok,gpsposisjon"<u></u><u></u></span></p>
<p class="MsoNormal"><span lang="EN-US"># PROCESSING "CLUSTER_KEEP_LOCATIONS=ON"<u></u><u></u></span></p>
<p class="MsoNormal"><span lang="EN-US">CLUSTER<u></u><u></u></span></p>
<p class="MsoNormal"><span lang="EN-US">MAXDISTANCE 50<u></u><u></u></span></p>
<p class="MsoNormal"><span lang="EN-US"><u></u> <u></u></span></p>
<p class="MsoNormal"><span lang="EN-US">REGION "ellipse"<u></u><u></u></span></p>
<p class="MsoNormal"><span lang="EN-US">END<u></u><u></u></span></p>
<p class="MsoNormal"><span lang="EN-US"><u></u> <u></u></span></p>
<p class="MsoNormal"><span lang="EN-US">CLASS<u></u><u></u></span></p>
<p class="MsoNormal"><span lang="EN-US"> NAME "Brukerminne"<u></u><u></u></span></p>
<p class="MsoNormal"><span lang="EN-US"> EXPRESSION ("[Cluster_FeatureCount]" = "1")<u></u><u></u></span></p>
<p class="MsoNormal"><span lang="EN-US"> STYLE<u></u><u></u></span></p>
<p class="MsoNormal"><span lang="EN-US"> SYMBOL "brukerminne"<u></u><u></u></span></p>
<p class="MsoNormal"><span lang="EN-US"> COLOR 200 0 0<u></u><u></u></span></p>
<p class="MsoNormal"><span lang="EN-US"> SIZE 27<u></u><u></u></span></p>
<p class="MsoNormal"><span lang="EN-US"> OFFSET 0 -13.5<u></u><u></u></span></p>
<p class="MsoNormal"><span lang="EN-US"> END<u></u><u></u></span></p>
<p class="MsoNormal"><span lang="EN-US">END<u></u><u></u></span></p>
<p class="MsoNormal"><span lang="EN-US">END <u></u><u></u></span></p>
<p class="MsoNormal"><span lang="EN-US"><u></u> <u></u></span></p>
<p class="MsoNormal"><span lang="EN-US"><u></u> <u></u></span></p>
<p class="MsoNormal"><span lang="EN-US">Anyone with ideas on what's wrong?<u></u><u></u></span></p>
<p class="MsoNormal"><span lang="EN-US"><u></u> <u></u></span></p>
<p class="MsoNormal"><span lang="EN-US"><u></u> <u></u></span></p>
<p class="MsoNormal"><span lang="EN-US">Thanks,<u></u><u></u></span></p>
<p class="MsoNormal"><span lang="EN-US">Erik<u></u><u></u></span></p>
<p class="MsoNormal"><span lang="EN-US"><u></u> <u></u></span></p>
</div>
</div>
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</div></blockquote></div><div><br clear="all"></div><div><br></div><span class="gmail_signature_prefix">-- </span><br><div dir="ltr" class="gmail_signature"><div dir="ltr"><div style="text-align:center"><font face="comic sans ms,sans-serif">Bob Basques<br></font></div><font face="comic sans ms,sans-serif"><div style="text-align:center"><a href="mailto:bbasques@sharedgeo.org" target="_blank">bbasques@sharedgeo.org</a></div><div style="text-align:center">612.598.9210</div><br></font></div></div>